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MASTERTEMP®125 INSTALLATION AND USER'S GUIDE HIGH

1. 6 in 15 cm DOOR PANELS 6 in 15 cm Note For service access it is advisable to allow for sufficient clearance on For service access it is advisable to allow for sufficient clearance on at least one door panel 15cm 6 in at least one door panel The heater is design certified by CSA International 15cm for installation on combustible flooring For installation on carpeting the 15 cm heater must be mounted on a metal or wood panel that extends at least three inches 10cm beyond the base of the heater If the heater is installed in a closet or alcove the entire floor shall be covered by the panel On an outdoor S shelter installation the exhaust discharges into a vent pipe Orient the heater so that the vent pipe does not interfere with adjustment of the operating 6 in 6 in may 00000200009900000 15 cm controls The control panel located on the top panel can be rotated to any sjn of the three sides of the heater for easy access However the control panel must not be located on the side where the vent is located see Figure 10 OUTSIDE VENT COVER REMOVAL Figure 10 The heater is supplied from the factory with a built in stackless outside vent for outdoor installation Remove the outside vent cover for outdoor shelter installation COMBUSTION AIR SUPPLY For indoor installation the heater loca
2. MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Replacethermal governor Rev B 8 14 Section 6 Maintenance 45 Maintenance Instructions CARE AND MAINTENANCE Risk of fire or explosion from flammable vapors Do not store gasoline cleaning fluids varnishes paints or other volatile flammable liquids near heater or in the same room with heater The following maintenance is recommended every six months and at the start of every swimming season 1 Inspect the heater panels and venting system to make sure that there are no obstructions to the flow of ventilating air or burner exhaust Check that room air intakes are open and clear of obstructions 2 Keep the area in and around the heater clear and free from combustible materials gasoline and other flammable vapors and corrosive liquids 3 Test the operation of the pressure relief valve by lifting the valve lever if installed 4 Test for proper operation of the water pressure switch See WATER PRESSURE SWITCH page 34 for testing instructions 5 Onenclosed installations with high temperature Special Gas Vent systems repeat the Final Installation Check page 27 Check for evidence of joint leakage Make sure that joints have not slipped partially or completely apart Check pipe and fittings for cracks or breaks The combustion air blower is permanently lubricated and does not require periodic lubrication The burner does not require mai
3. Pages 41 and 42 THERMISTOR on NO NO Turn off power to heater for about 5 seconds and turn back on Make sure tempera ture setting is above water temperature Wait one minute Do any diagnostic LED s on YES back of board AGS AFS SFS HLS PS or i ra NO Does red SERVICE YES Goto chart HEATER WILL y on HEATER LED come NOT FIRE C NOTICE Any or all of the diag on Page 40 nostic LED s may come on momentarily when you turn on the power to the heater NO Verify that water temperature setting is above water temperature reading If it is and heater either will not fire or no red LED s come on replace Control Board A WARNING Hazardous voltage Can shock burn or kill A WARNINGFire and Explosion hazard Do not jumper Disconnect power before servicing any components Switch terminals to remedy a failed safety switch Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 38 Section 5 Troubleshooting Heater Will Not Fire A Start Is green SPA or NO POOL LED on i YES Check that correct 12 pin YES plug is installed red is _ 240V black is 120V YES NO If plugis notinstalled YES Install correct plug 240V plugin 120V circuit Replace with correct plug 120V plugin 240V circuit Replace trans former control board and ignition con
4. and should not be used on heaters installed above pool water level except when needed for winterizing valves Assist the draining by blowing out the heat exchanger through the pressure switch fitting with low pressure compressed air less than 5 PSI or 35 kPa AWARNING Explosion hazard Purging the system with compressed air can cause components to explode with risk of severe injury or death to anyone nearby Use only a low pressure below 5 PSI or 35 kPa high volume blower when air purging the heater pump filter or piping Remove the Water Pressure Switch Plug the port in the manifold to prevent bugs and dirt from getting into the manifold 5 Drain the plastic inlet outlet manifold through the outlet pipe If the pipe does not drain naturally to the pool install a drain cock in the outlet pipe to drain the manifold 6 Cover air inlet grate with a plastic bag to prevent bugs leaves etc from getting into the heater NOTICE Water trapped in the heater can cause freeze damage Allowing the heater to freeze voids the warranty To return the heater to service after winterizing 1 Connect the INLET and OUTLET unions to the system plumbing Check that they are connected correctly and there are no water leaks 2 Before starting the heater circulate water through the heater for several minutes until all air noises stop See also BEFORE START UP page 33 and CARE AND MAINTENANCE page 45 See additional notes unde
5. CHECKING THE GAS PRESSURE THROUGH THE COMBINATION GAS CONTROL VALVE Risk of fire and explosion Improper installation incorrect adjustment alteration service or maintenance of the Combination Gas Control Valve can lead to fire or explosion causing loss of life personal injury and or property damage If it is necessary to adjust the gas valve this must be done by only by a qualified service agency These instructions are for the use of qualified service technicians only This appliance is equipped with an unconventional gas control valve that is factory set with a manifold pressure of 2 0 5cm we Installation or service must be performed by a qualified installer service agency or the gas supplier If this control valve is replaced it must be replaced with an identical control The combination gas valve incorporates dual shut off valves and a negative pressure regulator For proper operation the regulated pressure at the outlet manifold of the valve must be 0 2 0 5cm wc below the reference pressure at the blower mixer inlet and the gas valve VENT tap must be connected to the end cap air orifice as shown in Figure 7 Do not attempt to adjust the gas input by i To Gas z To Air Flow Connection for Service To Air Flow Valve Vent Connection for Test Switch jx F4 To High Side NY of Differential To Gas j Pressure Gauge Pressure Tap Valve Vent b it J D le Ses Tap To Low Side of _ Figure 7 Di
6. System or a timer Remove the factory installed jumper from the Fireman s Switch terminals Connect wires between the Fireman s Switch terminals on the heater and the relay Connect wires from the controller or timer to the Fireman s Switch Controller timer or relay should be sized to handle 24VAC at 0 5 Amp because it will be completing the 24 VAC control board circuit on the heater as shown in Figure 22 DO NOT apply line voltage to the Fireman s Switch terminals Use 18 gauge wire with a minimum 3 64 1 2mm thick insulation rated for a temperature rise of at least 105 C Knock outs are provided to route the wires through the bottom of the control box and past the junction box 4b To connect a 3 Wire Control Connect wires between the control board terminals on the heater and the external relays as shown in Figure 23 Use at least 2 relays per heater to allow for an OFF setting on each heater mode Select relays that can handle logic level switching DO NOT apply line voltage to control board terminals THERMISTOR c OPERATING CONTROL MEMBRANE PAD CONNECTION ENABLE TOGGLE DISABLE TOGGLE Move jumper as shown on Figure 23 to enable external control and to disable the heater membrane pad s Pool ON and Spa ON buttons the OFF key on the membrane pad remains functional Knock outs are provided to route the wires thr
7. Then verify that SER L Heater should fire on call for VICE SYSTEM LED goes on heat Re verify that water flow with pump off is above minimum require ment NO Minimum Flow Requirements Check that water pressure is NO within the adjustment range of Model Flow the Pressure Switch 0 5 psig 175 20 gal min 76 LPM 200 20 gal min 76 LPM j YES 250 25 gal min 95 LPM 300 30 gal min 114 LPM Verify that switch wiring is OK 400 40 gal min 151 LPM CONTINUE and Pressure Switch port is not blocked and replace water Pressure Switch If water pressure is outside of adjustment range that will open switch with pump off and close switch with pump on replace with flow switch set above minimum flow requirement Minimum Flow Requirements Model Flow 175 20 gal min 76 LPM 200 20 gal min 76 LPM 250 25 gal min 95 LPM 300 30 gal min 114 LPM 400 40 gal min 151 LPM Check whether any of the red diagnostic LED s on back YES Go to Diagnostic LED s of board AGS AFS SFS gt Pages 42 and 43 HLS or PS are on NO GO TO HEATER WILL NOT FIRE C Page 40 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 40 Section 5 Troubleshooting Heater Will Not Fire C Start Go to INITIAL TROUBLESHOOTING Continue to observe heater for several minutes Cycle heater on
8. after calling 9 for heat Repl laniti trol Check for 24 VAC Via gmon Conte YES between TH and GND l terminals on Ignition NO Control Module Check for 24 VAC between SEE NOTE 1 VAL and GND terminals on NO YES Ignition Control Module SEE NOTE 2 Check for 24 VAC between TH and GND Y YES terminals on Control NO Check for 24 VAC between YES Board SEE NOTE 1 VAL and GND terminals on Control Board SEE NOTE 2 Check for 24 VAC Y NO between GAS termi YES Fix wiring between VAL and nals on Control pP GND terminals of Ignition Board SEE NOTE 2 Control Module and Control Board Y NO Replace Control Board MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide NOTE 1 Voltage appears immedi ately after call for heat and may be on for only about 30 seconds NOTE 2 Voltage appears about 24 seconds after call for heat and may be on for only about 7 seconds Rev B 8 14 Section 5 Troubleshooting 41 Heater Will Not Fire D IMPORTANT READ ME FIRST IMPORTANT READ ME FIRST If your heater is correctly connected to 240 Volts AC the Ignition Control Module ICM will convert the 240VAC to an intermittent pulse to the ignitor Digital meters don t read this type of signal well An analog meter will give a better reading than a digital meter If the ICM is bad your volt meter will read either 0 VAC or 240 VAC If your ICM is good your meter will read some voltage between 0 and 24
9. and off several times Observe for delayed or rough ignition poor combus tion premature extinction of flame evidence of boiling or operation of any diagnostic LED Go to pertinent trou bleshooting section if any malfunction is observed Replace Control Board Verify that gas supply is open all the way to Gas Valve and Gas Valve is set at on position Check for 24 VAC to Gas Valve terminals during ignition try Voltage appears about 24 seconds after call for heat SEE NOTE 2 YES Replace Gas Valve with identical part Fix wiring between TH and GND terminals of Ignition Control Module and Control Board Replace Control Board Fix wiring between GAS ter minals on Control Board and Gas Valve Is SERVICE HEATER LED on Turn off power to heater for 5 seconds and turn back on Make sure tempera ture setting is above MES RES SESS PS or M walrtemporaure wes ait one minute THERMISTOR come on go to to Pages 42 and 43 Does heater fire and stay on CONTINUE NO NO Did burner fire at all I Did Blower come on YES y YES Go to BURNER Verify that gas is flow TROUBLESHOOTING ing to burner during Page 44 ignition try Observe gas meter for move ment during ignition No YES try wait for about 30 ERE NOT i seconds
10. approved non Tab Se corrosive material such as stainless steel aluminum galvanized A Minimum vent length is one foot 34M condensate trap may be needed The use of Approved thimbles roof jacks and or side vent terminals are required and the proper clearances to combustible materials must be maintained in accordance with type of vent pipe employed in the absence of pont vanis eM oF less ln dong a clearance recommendation by the vent pipe manufacturer the do not require a condensate tee but must requirements of the Uniform Mechanical Code should be met The slope down toward the outlet at 1 4 to the ventilation air requirements for the MasterTemp 125 heater foot 2cm M to allow condensate to drain are shown on page 18 It is recommended that vent runs over 18 feet may need to be insulated to reduce condensation related problems and or the use of a condensate trap in the vent run close to the heater may be necessary in certain installations such as cold climates Horizontal Do NOT combine exhaust vent pipes to a vents 3 1M or less in length do not require a condensate tee The common exhaust vent in multiple unit MasterTemp 125 heater is suitable for through the wall venting installations Run separate vent pipes or in accordance with vent manufacturer s instruction and local and national codes CONNECTING SPECIAL METALIC GAS VENT TO THE HEATER 1 Order an optional appliance adapter kit Pentair off
11. can be purchased separately See page 52 for parts list NOTE Each 90 degree elbow reduces the maximum horizontal PVC air intake duct run by 12 feet and each 45 degree elbow in the PVC air intake duct run reduces the maximum run by 6 feet See the Table 5 above for the maximum lengths using 90 degree elbows Corrosive Vapors and Possible Causes Chemicals should not be stored near the Chlorinated swimming Pool or spa cleaning chemicals Acids heater installation Combustion air can pools and spas such as hydrochloric or muriatic acid be contaminated by corrosive chemical fumes which can void the warranty Glues and cements construction adhesives paints varnishes and paint and varnish strippers Waxes and cleaners containing calcium or sodium chloride New construction and remodeling areas Table 5 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 20 Section3 Installation Instructions VENT INSTALLATION INDOOR INSTALLATION U S OR OUTDOOR SHELTER CANADA Category I NOTE Vent must be at least eight 8 feet away from a ae nearest vertical surface Vents extending five 5 feet or Always vent the heater to the outdoors see Note more above the roof must be braced or guyed Consult your local code officials for detailed information Vent it vertically using Type B double wall vent connector pipe Locate the heater so as to minimize the length of horizontal ve
12. is subject to change without notice P N 475000 REV B 8 14
13. see Figure 19 In a garage install a rail or wall to protect the heater from physical damage by a moving vehicle Provide an adequate ventilation air supply See Table 3 page 18 Choose a location that will avoid contamination by chemical fumes A CAUTION or more of clearance Leave 3 ft 1 m above heater A Propane LPG fired heater must not be installed in a garage in TN Massachusetts by order of the Massachusetts State Fire Marshal For Att ri more information call the Massachusetts State Fire Marshal s office RN MI Leave 6 in 15 cm CI gt PENTAIR NOTICE Combustion air contaminated by corrosive chemical fumes _ Pi sear space between l eater and combustible MASTERTEMP 125 can damage the heater and will void the warranty surface See Table 5 page 19 Da RAISE AT LEAST 18 in 46 cm above floor 4g in to avoid flammable vapors Figure 19 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 CONTROL PANEL INDEXING Installation Instructions 27 On an outdoor shelter installation the exhaust discharges into a vent pipe Orient the heater so that the vent pipe does not interfere with adjustment of the operating controls The control panel located on the top panel can be rotated to any of the three sides of the heater for easy access see Figure 20 1 Remove the bolts from the door pa
14. shorted Does sensor check OK Correct Fuel Supply reset Heater and retry Heater should fire correctly wo NO p gt Replace Stack Flue Sensor DONE YES Check continuity in wiring harness between Control Board and Probe Continuity OK Reset power to Heater and retry Heater should fire wo no Check the J3 and J6 connectors for corrosion looseness on the male pins Repeat checks on fuel supply Thermal Regulator check for correct orifices etc i YES NO ves Clean tighten pins as needed Does the Digital Temperature Display show Error Code E05 or E06 DONE Reset power to Heater and retry Heater should fire NO 8 14 MASTERTEMP 125 Pool and Spa NO NO HD NO Basic Section 5 Troubleshooting 43 Replace Heater Membrane Pad DONE Replace Heater Control Board DONE Reset power to Heater and retry Heater should fire No Check Heat Exchanger Coil for leaks liming soot or low flow Replace Heater Control Board DONE Reset power to Heater and retry Heater should fire No Replace Heater Membrane Pad DONE Reset power to Heater and retry Heater should fire Heater Installation and User s Guide 44 Section 5 Troubleshoo
15. when the heater is on and for at least 5 minutes after the heater turns off Any switches in the pump circuit including circuit breakers that can disconnect the pump must also disconnect the heater 7 Donot wire single pole switches including protective devices into a grounded line The heater is not sensitive to polarity Connect the L1 of the power supply to the black wire the L2 or neutral lead to the red wire and the ground wire to the green wire A time clock controlling the filter pump should have a low voltage Fireman s Switch that switches off the heater at least 15 minutes before shutting off the pump Always use crimp type connectors when connecting two wires AC Plug 120 Volt or 240 Volt Figure 21 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 29 CONNECTION OF FIREMAN S SWITCH OR REMOTE CONTACT A CAUTION If while there is line voltage connected to the heater you touch either line voltage terminal with any 24VAC wire that is connected to the control board including the Fireman s Switch jumper you will immediately destroy the control board and void the warranty REMOTE CONTROL CONNECTIONS 1 Switch off power to heater at main circuit breaker panel Figure 22 2 Unbolt and remove the access door panels 3 Open control box cover see Figure 22 4a To connect a 2 Wire Control such as IntelliTouch or EasyTouch Control
16. 0 VAC Exactly what reading you get will depend on the meter but with a good ICM the reading won t be 0 VAC or 240 VAC but somewhere in between Start Gas flows during igni tion try but burner does not fire NO Go back to chart HEATER WILL NOT FIRE C Page 40 YE LOTES S Check gas pressure OK ER NO YES Check voltage across igniter leads OK Replace HSI Igniter NO Replace Ignition Control Module On a 120 V installation check the ignitor for Increase gas flow into heater Replace gas line with larger line Replace regulator damage if it has seen Replace meter or 240 VAC All of the above Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 42 Section 5 Troubleshooting Diagnostic LED s AGS AFS HLS PS THERMISTOR AGS or HLS on Replace High Limit Switch HLS or Automatic Gas Shutoff AGS CONTINUE Verify that water flow rate is above minimum required for heater NO n y YES Service pump and filter to restore proper flow After ser vicing verify proper operation of Pressure Switch PS Verify that inlet water temper ature is below 104 F NO miu If problem persists verify proper operation of Internal Bypass Valve and Thermal Governor and check for Heat Exchanger blockage Replace thermist
17. 0 Volt 60 Hz Single Phase power only Verify proper operation after servicing Do not allow children to play on or around heater or associated equipment Never allow children to use the pool or spa without adult supervision Read and follow other safety information contained in this manual prior to operating this pool heater MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 2 Warning and Safety Instructions 9 CONSUMER INFORMATION AND SAFETY A WARNING The U S Consumer Product Safety Commission warns that carbon monoxide is an invisible killer Carbon monoxide is a colorless and odorless gas l 2 a 90 B Carbon monoxide is produced by burning fuel including natural gas and propane Proper installation operation and maintenance of fuel burning appliances in the home is the most important factor in reducing carbon monoxide poisoning Besure that fuel burning appliances such as heaters are installed by professionals according to manufacturer s instructions and codes Always follow the manufacturer s directions for safe operation Have the heating system including vents inspected and serviced annually by a trained service technician Examine vents regularly for improper connections visible cracks rust or stains Install battery operated carbon monoxide alarms The alarms should be certified to the requirements of the most recent UL IAS CSA and IAPMO standard for c
18. 25 LP Tube Sheet Coil Assembly Kit NA LP Includes Key No 3 Manifold Kit Includes Key Nos 3 11 Key No 12 and 13 not included Key Nos 5 7 in Electrical System Page 53 Coil Tubesheet Sealing O Ring Kit Manifold Bottom Plate Manifold O Ring Manifold Baffle Plate Manifold Bypass Valve Water Pressure Switch Manifold 5 16 Washer Stainless Steel 5 16x18x2 3 4 Hex Cap screw Thermal Regulator Pressure Relief Valve Recommended Purchase Separately 1 1 2 Union Kit Not available separately MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide O0 O0 amp ek ee ek amp amp 474971 474972 474973 42001 00608 474989 473715Z 474974 Rev B 8 14 Section 6 Maintenance Replacement Parts 53 Rev B 8 14 MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS ELECTRICAL SYSTEM Model 125 NA LP MT125 HD NA amp LP Description Heater Display Cover Igniter Bracket Igniter Igniter Gasket Kit Incl Key Nos 3 and 4 Igniter Gasket Automatic Gas Shutoff Switch AGS High Limit Switch Thermistor Hi Limit Switch 45 C Terminal Board Fireman s Switch Fuse 1 25A 1 1 4 Ignition Control Module Transformer 120 240V Air Flow Switch Control Board Kit NA LP Series Heater Wiring Harness 120 240V 120 240 Volt Plug Kit Heater Top Membrane Pad NA LP Series Stack Flue Sensor Inter
19. EATER IDENTIFICATION NUMBER ID DESIGNATOR FOR PENTAIR AQUATIC SYSTEMS MASTERTEMP 125 HEATER Example 1 2 4 3 CONSTRUCTION STD STANDARD MODEL NA NATURAL GAS FUEL TYPE LP PROPANE GAS MODEL SIZE BTU INPUT in 1000 of BTU HR MT MASTERTEMP MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 2 Warning and Safety Instructions 5 Section 2 Warning and Safety Instructions IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS MasterTemp 125 High Performance Heater Congratulations on your purchase of a MasterTemp 125 high performance heating system Proper installation and service of your new heating system and correct chemical maintenance of the water will ensure years of enjoyment The MasterTemp 125 heater is a compact lightweight efficient induced draft gas fired high performance pool and spa heater that can be directly connected to schedule 40 PVC pipe The heater also comes equipped with the Pentair multifunction temperature controller which shows at a glance the proper functioning of the heater All MasterTemp 125 heaters are designed with a direct ignition device HSI hot surface ignition which eliminates the need for a standing pilot The MasterTemp 125 heater requires an external power source 120 240 VAC 60 Hz to operate SPECIAL INSTRUCTIONS TO OWNER Retain this manual for future reference This instruction manu
20. ENSOR NOTES v S TE S FE ES Ee ARE CONNECTED ON THE IGNITION MODULE 2 a PIN AND SOCKET CONNECTOR 3 IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED THEY MUST BE REPLACED WITH TYPE 105 C OR ITS EQUIVALENT Figure 25 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 32 Section 4 Operation Instructions Operation Instructions BASIC SYSTEM OPERATION Start pump make sure the pump is running and is primed to close the water pressure switch and supply power to heater Be sure the pool and or spa is properly filled with water Follow the Lighting Operating instructions below HEATER HSI ELECTRONIC IGNITION LIGHTING OPERATION FOR YOUR SAFETY READ BEFORE LIGHTING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life Do not attempt to light the heater if you suspect a gas leak Lighting the heater can result in a fire or explosion which can cause personal injury death and property damage START UP AND OPERATION START UP AND SHUTDOWN INSTRUCTIONS ARE ON THE LABEL ATTACHED TO THE COVER OF THE APPLIANCE CONTROL BOX BEFORE START UP A This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burners Do not try to light the burners by hand BEFORE OPERATING smell all around the appliance area for gas B
21. ER spa temperature setting HEATER OFF Press this button to switch off the heater e A TEMP Press this button to raise the temperature setting D M EN v TEMP Press this button to lower the temperature setting System Operation Dual Temperature Heater OFF To toggle the display between degrees Centigrade C and degrees Indicator Lights Controls wich Fahrenheit F 1 Turn the Operating Control OFF Fi as igure 32 2 Press A TEMP or V TEMP for 5 seconds The display will flash once and change modes C to F or vice versa 3 Turn the Operating Control ON When either the A TEMP or V TEMP buttons are depressed the digital display will indicate the temperature setting After five seconds the display will return to the actual pool spa temperature In addition to the digital temperature display there are five indicator lights The POOL ON light indicates that the pool water temperature is governing operation of the heater The SPA ON light indicates that the spa water temperature is governing operation of the heater The HEATING light comes on and stays on when the burner is firing This light should be on whenever the burner is on It blinks when the heater is calling for heat but not firing If this light is on but the burner fails to come on one of the service lights should come on indicating a fault in the system The SERVICE SYSTEM light indicates that there is insufficient water flow to the heater If the pump is operati
22. Figure 13 Typical Metal Vent Pipe Installation U S Vertical Negative Pressure Approved F Termination Storm Collar Min 2 Ft d Min 10 Ft 3 3 M gt Double Wall Metal Vent Pipe Metal Flue Vent Collar Body Firestop D Double Wall J Metal Vent Tee Support Vertical Vent Pipe so adapter does not take weight of pipe Dispose of condensate according to local codes Condensate Drain w trap Figure 14 Typical Metal Vent Pipe Installation Canada Vertical Negative Pressure MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 22 Section3 Installation Instructions 4 Install vent pipe so that it can expand and contract freely as the temperature changes Support the vent pipe according to applicable codes and the vent manufacturer s instructions Pipe support must allow the vent pipe free movement out and back from side to side or up and down as necessary without putting a strain on the heater or vent body Slope horizontal pipe runs up from the heater at least 1 4 per foot 2cm per meter Install Listed condensate drains at low points where condensate might collect Plumb condensate drains to a drain through hard piping or high temperature tubing such as silicone rubber or EPDM rubber do not use vinyl or other low temperature tubing Follow drain manufacturer s installation instructions Use Listed fire stop for floor and ceiling penet
23. OL MEMBRANE PAD CONNECTIO AGSYN NNECTION SFS MP3 ae GAS EI External Control Interface Circuit Disabled Heater Membrane Pad Enabled Spa Line Common Line Pool Line External Control Interface Ww BK FIER NNI C3 s DIAGNOSTIC INDICATOR IGNITION CONTROL MODULE External Control Interface Circuit 24VAC Enabled Pool On and Spa On zj Keys Disabled OFF Key on Membrane Pad Remains Functional 120 VAC IGNITER CLE l BK Plug 12 pin o 120V Black 223 FE 240V Red g 1 SREZ i R n oer m 12 Position Receptacle c gy ak v 2 Y Ss Ses EE JUNCTION BOX NOTICE Touching any 24VAC wire including 2 Line 1 gt 4 Ek the Fireman s Switch wire to any 120 240V Sse terminal while the heater is connected to line Eo Lne2 T gt gt power will immediately destroy the control Ground 1 gt Ser board and void the warranty Zac a Figure 24 GND MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 31 HEATER ELECTRICAL SCHEMATIC LADDER DIAGRAM Rev B 8 14 LADDER DIAGRAM 120 240 L1 lt VAC L2 IGNITER BLOWER 120 240 VAC CLASS II TRANSFORMER III AIR W 4v Bee LOGIC FLOW SWITCH O PRESSURE LIMIT e e e WATER HI e SWITCH O SWITCH COM NO N ecccccc0c p lt GAS VALVE STACK FLUE THERMISTOR SENSOR S
24. Only qualified service technicians should attempt to convert heater from one fuel to the other Do not attempt to alter the rated input or type of gas by changing the orifice If itis necessary to convert to a different type of gas consult your Pentair dealer Serious malfunction of the burner can occur which may result in loss of life Any additions changes or conversions required in order for the appliance to satisfactorily meet the application needs must be made by a Pentair dealer or other qualified agency using factory specified and approved parts The heater is available for use with natural gas or LP propane gas only It is not designed to operate with any other fuels Refer to the nameplate for the type of gas the heater is equipped to use Use heater only with the fuel for which it is designed f a fuel conversion is necessary refer this work to a qualified service technician or gas supplier before putting the heater into operation A WARNING Risk of fire or explosion from flammable vapors Do not store gasoline cleaning fluids varnishes paints or other volatile flammable liquids near heater or in the same room with heater A WARNING Risk of explosion if unit is installed near propane gas storage Propane LP gas is heavier than air Consult local codes and fire protection authorities about specific installation requirements and restrictions Locate the heater away from propane gas storage and filling equipment as specif
25. P PENTAIR vero stom MASTERTEMP 125 HIGH PERFORMANCE HEATER INSTALLATION AND USER S GUIDE AWARNING FOR YOUR SAFETY READ BEFORE OPERATING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life For additional free copies of this manual call 800 831 7133 FOR YOUR SAFETY This product must be installed and serviced by authorized personnel qualified inpool spa heater installation Improper installation and or operation can create carbon monoxide gas and flue gases which can cause serious injury property damage or death For indoor installations as an additional measure of safety Pentair Aquatic Systems strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces Improper installation and or operation will void the warranty 120 240 VAC NATURAL GAS LP GAS Models Natural Propane 125K BTU HR without cord 461058 461060 125K BTU HR with cord 461059 461061 OWNER Retain For Future Reference Improper installation adjustment alteration service or maintenance can cause property damage personal injury or death Installation and service must be performed by a qualified installer service agency or the gas supplier WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance FOR Do not touch any electrical switch do not use any phone in yo
26. The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet which can be removed for cleaning as shown in Figure 6 or an other device recognized as an effective sediment trap All gas piping should be tested after installation in accordance with local codes d PENTAIR MASTERTEMP 125 ij At least 3 Figure 6 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation 15 GAS PIPE SIZING STAGE TWO LOW PRESSURE GAS PIPE SIZING PIPE SIZING FOR GAS LINE CONNECTIONS MAXIMUM EQUIVALENT PIPE LENGTH Ft Natural Gas at 1000 B T U per Cubic Foot Propane Gas at 2500 B T U per Cubic Foot wr 3e e tue tz r 22 MODEL us ms ew ofa ww 1 Table 2 TESTING GAS PRESSURE Before operating the heater the heater and its gas connections must be leak tested Do NOT use an open flame to test for leaks Test all gas connections for leaks with soapy water or another non flammable method see page 14 The heater and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa The heater must be isolated from the gas supply system by closing its individual manual shut off valve during any pressure testing of the gas supply at test pressures equal to or less than 1 2 psig 3 5 kPa
27. The pan must not restrict air flow Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 10 Section 3 Installation Instructions Section 3 Installation Instructions HEATER DESCRIPTION sey Exhaust Figure 1 is a diagram of the heater showing how it operates Air g i KY N Blower Precisely matched orifice plates meter the air and gas into the mixer gt A The blower draws the air and gas through the mixer and forces it into the burner s flame holder A sealed heat exchanger surrounds the flame holder discharging exhaust gases out the flue Two inch PVC water piping connects directly to the manifold header on the heat exchanger using 1 5 PVC slip unions provided with the heater The outer manifold remains cool no heat sinks are required A thermal regulator and an internal bypass regulate the water flow through the heat exchanger to maintain the correct outlet temperature The heater operator control panel board assembly is located on top of the heater Mixed Burner Heating Coils SEQUENCE OF OPERATION Figure 1 An electronic temperature sensing thermistor in the manifold adapter inlet controls the heater operation When the inlet water temperature drops below the temperature set on the operating control the burner controller supplies power to the combustion air blower through a series of safety interlocks The interlo
28. a medical history of heart disease circulatory problems diabetes or blood pressure problems should obtain their physician s advice before using spas or hot tubs 6 Persons taking medication which induce drowsiness such as tranquilizers antihistamines or anticoagulants should not use spas or hot tubs Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the heater Do not use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and to replace any part of control system and gas control which has been under water MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 2 Warning and Safety Instructions 7 SAFETY INFORMATION The MasterTemp 125 Heater is designed and manufactured to provide many years of safe and reliable service when installed operated and maintained according to the information in this manual Throughout this manual safety warnings and cautions are identified by the A symbol Be sure to read and comply with all of the warnings and cautions A DANGER CARBON MONOXIDE GAS IS DEADLY READ OWNERS MANUAL COMPLETELY BEFORE OPERATING THIS PRODUCT MUST BE INSTALLED AND SERVICED BY A PROFESSIONAL SERVICE TECHNICIAN QUALIFIED IN POOL HEATER INSTALLATION Some jurisdictions require that installers be licensed Check with your local building authority about contractor licen
29. al provides operating instructions installation and service information for the MasterTemp 125 high performance heater The information in this manual applies to all MasterTemp 125 heater models READ AND REVIEW THIS MANUAL COMPLETELY it is very important that the owner installer read and understand the section covering installation instructions and recognize the local and state codes before installing the MasterTemp 125 heater Its use will reduce service calls and chance of injury and will lengthen product life History and experience has shown that most heater damage is caused by improper installation practices IMPORTANT NOTICES For the installer and operator of the MasterTemp 125 pool and spa heater The manufacturer s warranty may be void if for any reason the heater is improperly installed and or operated Be sure to follow the instructions set forth in this manual If you need any more information or if you have any questions regarding to this pool heater please contact Pentair Aquatic Systems at 800 831 7133 WARRANTY INFORMATION The MasterTemp 125 pool heater is sold with a limited factory warranty Specific details are described on the war ranty registration card which is included with the product Return the warranty registration card after filling in the serial number from the rating plate inside the heater Pentair Aquatic Systems high standards of excellence include a policy of continuous product improvement re
30. ally grounded and bonded in accordance with local codes or in absence of local codes with the National Electrical Code ANSI NFPA70 US or in Canada in accordance with the Canadian Electric Code part 1 as applicable CERTIFIED ADANGER CARBON MONOXIDE GAS IS DEADLY Exhaust from this pool heater contains toxic levels of carbon monoxide a dangerous poisonous gas you cannot see or smell CONSUMER INFORMATION AND SAFETY The U S Consumer Product Safety Commission warns that elevated water temperature can be hazardous See below for water temperature guidelines before setting temperature 1 Spa or hot tub water temperatures should never exceed 104 F 40 C A temperature of 100 F 38 C is considered safe for a healthy adult Special caution is suggested for young children 2 Drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness and subsequently result in drowning 3 Pregnant women beware Soaking in water above 102 F 39 C can cause fetal damage during the first three months of pregnancy resulting in the birth of a brain damaged or deformed child Pregnant women should stick to the 100 F 38 C maximum rule 4 Before entering the spa or hot tub the user should check the water temperature with an accurate thermometer Spa or hot tub thermostats may err in regulating water temperatures by as much as 4 F 2 2 C 5 Persons with
31. arbon monoxide alarms Test carbon monoxide alarms regularly and replace dead batteries GENERAL SPECIFICATIONS NOTICE Combustion air contaminated by corrosive chemical fumes can damage the heater and will void the warranty The Combination Gas Control Valve on this heater differs from most appliance gas controls If it must be replaced for safety reasons replace it only with an identical gas control The access door panels must be in place to provide proper ventilation Do not operate the heater for more than five 5 minutes with the access door panels removed This heater is design certified by CSA International as complying with the Standard for Gas Fired Pool Heaters ANSI Z21 56 CSA 4 7 and is intended for use in heating fresh water swimming pools or spas The heater is designed for the heating of chlorine bromine or salt system swimming pools and spas It should NOT be used as a space heating boiler or general purpose water heater The heater is design certified by CSA International for installation on combustible flooring Specified minimum clearances must be maintained to combustible surfaces see Heater Clearances page 18 The heater should be located in an area where leakage of the heater or connections will not result in damage to the area adjacent to the heater or to the structure When such locations cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the heater
32. cks consist of the pressure switch PS which senses that the pump is running the high limit switch HLS which opens if the heat exchanger outlet temperature goes above 135 F 57 C and the air flow switch AFS which senses the pressure drop across the air metering orifice the automatic gas shut off AGS switch which opens if the heat exchanger outlet temperature goes above 140 F 60 C the stack flue sensor SFS which shuts down the heater if the flue gas temperature reaches 480 F 249 C The air flow switch AFS senses the pressure drop across the air metering orifice As soon as there is sufficient air flow the AFS closes closing the circuit to the hot surface igniter HSI which ignites the fuel mixture On a call for heat the blower and HSI are energized In about 20 seconds the gas valve opens and ignition occurs The HSI then switches to a sensing mode and monitors the flame The heater is equipped with a digital operating control that enables the user to pre set the desired pool and spa water temperatures The control enables the user to select between pool and spa heating and features a digital display that indicates the water temperature PUTTING THE HEATER INTO SERVICE If the heater is installed below the level of the pool or more than two feet above pool level the pressure switch setting should be adjusted See WATER PRESSURE SWITCH in the SAFETY CONTROLS Section Before putting the heat
33. connection between Membrane Pad and J6 on Control Board Depress POOL or SPA On pad again Does POOL or SPA LED come on Remove jumper Check wiring between Transformer and J7 terminals on Control Board and between J7 and Fireman s Switch on Terminal Board check fuse and restore continuity YES Heater should fire on demand for heat YES Jumper pins 6 and 5 on J6 of Control Board Does SPA LED come on Jumper pins 6 and 4 on J6 of Control Board Does POOL LED come on Replace Membrane Pad NO H Replace Control Board HEATER WILL NOT FIRE B Page 39 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 5 Troubleshooting 39 Heater Will Not Fire B Start Is red SERVICE NO Is red SERVICE SYSTEM NO Increase POOL SPA tempera HEATER LED on LED on gt ture setting on Membrane Pad above actual water tem YES perature Heater should fire YES on demand for heat If not Verify that pump is on filter is and no other red LED s light not blocked and the water NO replace Control Board flow is above the minimum requirement YES Service pump filter and elimi With pump running adjust nate other flow obstructions Water Pressure Switch to lower pressure until SER VICE SYSTEM LED goes YES out
34. detectors installed near the pool heater The carbon monoxide detectors must be periodically inspected for proper operation so A WARNING FOR YOUR SAFETY This product must be installed and serviced by a professional service technician qualified in pool heater installation Some jurisdictions require that installers be licensed Check with your local building authority about contractor licensing requirements Improper installation and or operation could create carbon monoxide gas and flue gases which could cause serious injury or death Improper installation and or operation will void the warranty A warnine This heater is equipped with an unconventional gas control valve that is factory set with a manifold pressure of 2 inches we Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Installation or service must be performed by a qualified installer service agency or the gas supplier If this control is replaced it must be replaced with an identical control Do not attempt to adjust the gas flow by adjusting the regulator setting Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 8 Section2 Warning and Safety Instructions SAFETY INFORMATION cont d A WARNING Risk of fire or explosion from incorrect fuel use or faulty fuel conversion Do not try to run a heater set up for natural gas on propane gas or vice versa
35. direct schedule 40 PVC plumbing connections A set of bulkhead fittings is included with the MasterTemp 125 heater to insure conformity with Pentair s recommended PVC plumbing procedure Other plumbing connections can be used See Figure 3 for plumbing connections Before operating the heater on a new installation turn on the circulation pump and bleed all the air from the filter using the air relief valve on top of the filter Water should flow freely through the heater Do not operate the heater unless water in the pool spa is at the proper level If a manual by pass is installed temporarily close it to insure 3 Way l that all air is purged from the heater Valve Chlorinator WATER CONNECTIONS Check Valve f A t G The heater requires proper water flow and pressure for its a operation See Figure 4 for the recommended installation The filter pump discharges to the filter the filter discharges to the Main t heater and the heater discharges directly to the pool or spa Drain J Q Fiter A manual bypass valve should be installed across the heater Qu Pool O Spa P when the pump flow exceeds 70 GPM 265 LPM See L ww B e af 4 WATER FLOW RATE Table 1 on page 13 for setting of SESS J Pump the manual by pass valve V hc 1 Make sure that the outlet plumbing from the heate
36. e 32 If you don t smell gas go to the next step Turn ON the Manual Shut Off Valve as shown below Toggle Style Valve Push the toggle switch away from you to switch the gas on Replace the Door Access Panels All panels must be in place when operating the heater Set 3 way valves on inlet and outlet to pool or spa as appropriate Turn on all electric power to the appliance Press either the POOL ON or SPA ON button switch on the operating control Set the thermostat to desired setting NOTICE Setpoint must be above actual water temperature or burner will not fire See OPERATING the CONTROL PANEL The blower should come on immediately and after about 20 seconds the burner should fire When operating for the first time the burner may not fire on the first try because of air in the gas line If it does not fire at first Gas control is shown OFF Figure 27 push the OFF switch wait five minutes and again push the POOL or Push toggle switch away SPA ON switch The burner should fire after about 20 seconds You tro you to QUUD may have to repeat this until all of the air has cleared the gas line The burner should fire until the pool spa temperature reaches the desired temperature set on the thermostat The blower will continue to run for about 45 seconds after the burner shuts off If any of the safety interlocks should open during burner operation the burner shuts off immediately but the blower continues to run
37. e heater bolts and clamps purchase separately To avoid damage to the electronic components in the heater take care to prevent prolonged exposure E ud Kit go E a al o s to driving sources of water such as lawn sprinklers heavy roof runoff hoses etc Avoid operation in persistent extreme moist or salty environments In extreme weather shut down the heater and disconnect the power to it until the weather has gt Lead moderated In areas subject to hurricanes or very high winds purchase the Bolt Down Bracket Kit P N 460738 HEATER CLEARANCES OUTDOOR IMPORTANT n an outdoor installation it is important to ensure water is diverted from overhanging eves with a proper gutter drainage system The heater must be set on a level foundation for proper drainage Anchor 5E e This unit shall not be operated outdoors at temperatures below 20 F If the heater is located under a roof overhang there must be at least three 3 feet 1m of clearance between the bottom of the overhang and the top of the heater exhaust vent see Figure 8 If the heater is under a roof overhang the space around the heater must be open on three sides DO NOT under any circumstances install the heater under ANY deck For minimum exhaust vent clearances for all building openings including but not limited to vented eaves doors windows gravity air inlet see Figure 8 page 17 In Canada the heater must be installed with the
38. e sure that the pump is running correctly that there are no blockages in the system that the valves are correctly set and that the time clock is correctly set and is running IMPORTANT READ ME FIRST NOTICE Installing the black120 volt plug in the control box and on either 120 Volts AC or 240 Volts AC then connecting the heater to a 240 volt line will destroy the trans 5 Remove the covers and check the 12 pin plug in the back of the former control broad and ignition control module and will void the control box The plug must match the voltage in the heater circuit warranty If you install the red 240 volt plug and then connect the 3 If the 12 pin plug is not plugged into the back of the control heater to a 120 volt line the heater will not operate d i box select the correct plug from the bag in the control box READ THE FOLLOWING CAREFULLY and plug it in The BLACK plug is for120 volts the RED plug 1 Check the line voltage to your heater This heater will operate is for 240 volts Start here for directions to specific Troubleshooting Chart Y apa Go to chart HEATER WILL eo us NOT FIRE A i Page 38 YES LED on Ss NOT FIRE B Page 39 NO Are any red diagnos YES tic LED s on back of YES Go to specific safety switch e em nee gt board AGS AFS m gt troubleshooting chart SFS HLS PS or
39. e sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the Fire Department Use only your hand to turn the gas control on or off Never use tools If you cannot change the ON OFF setting by hand don t try to repair it call a qualified service technician Forced or attempted repair may result in a fire or explosion Do not use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control which has been under water Do not operate the pool heater unless the pool or spa is properly filled with water F Before operating the appliance for the first time or after it has been off for an extended time perform the following checklist 1 Remove debris or other articles from inside the heater and the area around the heater and its exhaust vent Make sure the ventilation openings are clear of debris or obstruction For installations in an enclosed space make sure openings for combustion and ventilation air are unob
40. er into service for the first time follow the instructions under BEFORE START UP page 32 in the front of this manual Check for proper operation of the heater by following the steps under OPERATION INSTRUCTIONS Damage to equipment caused by improper installation or repair will void the warranty MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 11 SPECIFICATIONS These installation instructions are designed for use by qualified personnel only trained especially for installation of this type of heating equipment and related components Some states require installation and repair by licensed personnel If this applies in your state be sure your contractor bears the appropriate license See Figure 2 for Outdoor and Indoor Installations 20 85 52 95cm 00000800000860000 ELECTRICAL a N r CONDUIT PORT 29 43 21 74 76 53 cm 17 5 44 5cm 10 87 28 cm Y FRONT VIEW TOP VIEW d L 5 5 c 14cm ia L as i EXHAUST SIDE VIEW PLUMBING SIDE VIEW Figure 2 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 12 Section 3 Installation Instructions PLUMBING CONNECTIONS Figure 3 The MasterTemp 125 heater has the unique capability of
41. erminating under an Metal Specie Support overhang requires weight Appliance of PPS Listed Avoid corners or alcoves where snow or wind could Adapter m s have an effect Exhaust may affect shrubbery and Condensate BI j Tee some building materials Keep shrubbery away from Metal termination To prevent staining or deterioration Vent A Body sealing or shielding exposed surfaces may be HL required li 3 A Slope at least 1 4 per foot y Condensate 2 cm per Meter drain w Trap cn foward do ne omy Ma Fire Hazard Do not run the heater vent into a common Optional condensate drain MA eo ance vent with any other appliance Do not run the Special Gas Vent into through or within any active vent such Figure 18 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 26 Section3 Installation Instructions OUTDOOR SHELTER INSTALLATION In Canada this pool heater can only be installed outdoors or in an enclosure that is not normally occupied and has no direct openings into occupied areas Risk of asphyxiation if exhaust is not correctly vented Follow venting instructions exactly when installing heater Do not use a draft hood with this heater as the exhaust is under pressure from the burner blower and a draft hood will allow exhaust fumes to blow into the room housing the heater Exhaust venting to the outdoors is required for all outdoor shelter installations Risk of explosion if a unit burning pr
42. ers optional appliance adapter kits call Customer Service at 800 831 7133 for more information Part No 77707 0086 for Saf T Vent or Saf T Vent CI Part No 77707 0087 for Z Vent 2 Remove the outside vent cover 3 Install the Appliance Adapter in the Vent Body of the heater located under the outside Vent Cover Before connecting the Appliance Adapter to the Vent Body wet a clean cloth or paper towel with isopropyl alcohol rubbing alcohol and vigorously wipe the socket of the Vent Body Immediately wipe the cleaned surfaces dry with a clean cloth or paper towel Repeat for the exterior of the heater end of the Appliance Adapter Attach the appliance adapter to the vent body using the adhesive specified by the vent manufacturer following the vent manufacturer s instructions Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 24 Section3 Installation Instructions Risk of carbon monoxide poisoning if adapter is improperly attached Mechanical connections such as screws can cause cracking and leaks in the adapter Do NOT drill holes or use screws to connect the appliance adapter to the heater vent body Attach with manufacturer s specified adhesive Risk of fire or asphyxiation if vent is not assembled according to manufacturer s instructions or if vent parts from different manufacturers are mixed Vent parts from different manufacturers ARE NOT interchangeable Mixing parts from more than one manufactu
43. fferential Pressure Gauge GAS PRESSURE REQUIREMENTS The use of Flexible Connectors FLEX is NOT recom MASTERTEMP 125 HEATER GAS PRESSURE mended unless they are properly sized according to NATURAL AND PROPANE the supplier recommendations for the heater rating MAXIMUM INLET 14 INCHES W C Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 16 Section 3 Installation Instructions OUTDOOR INSTALLATION U S and Canada For heaters located outdoors using the built in stackless venting system AWARNING Risk of explosion if a unit burning propane gas is installed in a pit or other low spot Propane is heavier than air Do not install the heater using propane in pits or other locations where gas might collect Consult your local building code officials to determine installation requirements and specific installation restrictions of the heater relative to propane storage tanks and filling equipment Installation must meet the requirements for the Standard for the Storage and Handling of Liquid Petroleum Gases ANSI NFPA 58 latest edition in the U S or CAN CSA B149 2 latest edition in Canada Consult local codes and fire protection authorities about specific installation restrictions Locate the heater on a level surface in an open area that is protected from drainage or run off For Heater mounting Install the heater in an area where leaves or other debris will not collect on or around th
44. for about 45 seconds Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance If the appliance will not operate follow the instructions below TO TURN OFF GAS TO THE APPLIANCE and call your service technician or gas supplier Press the OFF button on operating control Switch off all electric power to the unit Turn OFF the Manual Shut Off Valve as shown on right Remove the access door panels see Figure 26 Toggle Style Valve Pull toggle toward you to turn gas off see Figure 27 j E MANUAL SHUT OFF VALVE LOCATION Replace the Access Door Panels Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Figure 29 34 Section 4 Operation Instructions SAFETY CONTROLS Figure 28 AIR FLOW SWITCH AFS The air flow switch see Figure 28 is a safety device used to insure that the combustion air blower fan is operating and has been designed to monitor the vacuum negative pressure within the blower housing The air flow switch is factory set and is connected upstream of the ignition module The ignition module does not operate unless the air pressure switch and all safety switches are closed WATER PRESSURE SWITCH Hazardous pressure Do not bypass the Water Pressure Switch or render it inoperable Figure 29 Water Air Flow Switch The water pressure switch see Figure 29 If the water flow is restr
45. g hurricanes A Bolt Down Bracket Kit P N 460738 is available with anchor clamps designed to hold the unit to the equipment pad in high wind conditions Installation of the anchor clamps are recommended in all installations and are required in Florida See Florida Building Code 301 13 For Heater mounting bolts and clamps purchase separately Bolt Down Bracket Kit Part No 460738 f Lead Anchor a c Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 28 Section 3 Installation Instructions ELECTRICAL CONNECTIONS Electrical Rating 60 Hz 120 240 Volts AC single phase Enclose the incoming AC power line to the heater in an approved flexible conduit connected directly to the junction box on the inside of the access door panel Line voltage field wiring should be 14 gauge with a circuit capacity of 15 Amps ACAUTION This heater is designed to operate at 120 or 240 VAC It is not recommended to be connected to OR operate on a 208 VAC NOTE Before making any electrical connections to the power supply remove the access door panels open the control box and plug in the correct plug 120 volt or 240 volt CAUTION The heater ships from the Factory with the 240V plug installed Installing the 120V plug and then connecting the heater to 240V line current will immediately destroy the transformer control board and ignition control module and will void warra
46. gae 2 Water becomes cloudy 3 There is more danger of scale formation on the plaster or in the heat exchanger tubing 4 Filter elements may become blocked If pH is too low over acid the following conditions may occur 1 Excessive eye burn or skin irritation 2 Etching of the plaster 3 Corrosion of metal fixtures in the filtration and recirculation system which may create brown blue green or sometimes almost black stains on the plaster 4 Corrosion of copper tubes in the heater which may cause leaks 5 Ifyou have a sand and gravel filter the alum used as a filter aid may dissolve and pass through the filter CAUTION Do not test for pH when the chlorine residual is 3 0 ppm or higher or bromine residual is 6 0 ppm or higher See your local pool supply store for help in properly balancing your water chemistry RULE Chemicals that are acid lower pH Chemicals that are alkaline raise pH ALKALINITY High or Low Total alkalinity is a measurement of the total amount of alkaline chemicals in the water and control pH to a great degree It is not the same as pH which refers merely to the relative alkalinity acidity balance Your pool water s total alkalinity should be 100 140 ppm to permit easier pH control A total alkalinity test is simple to perform with a reliable test kit You will need to test about once a week and make proper adjustments until alkalinity is in the proper range Then test only once every month o
47. ght be insufficient the MasterTemp 125 Heater is certified for a direct air intake duct using 3 inch PVC pipe If outside air is drawn through 3 PVC duct directly into the heater PVC pipe can be installed in accordance with the following requirements The air intake opening MUST be installed at least 1 ft above the roof line or normal snow levels for free air flow The Category I or III exhaust vent termination cap must have at least 3 ft minimum vertical clearance from air intake duct See Figure 11 below 36 MIN Combustion Air Intake 3 PVC Pipe Combustion 3 in PVC Pipe Pie eraen P vA Location Inlet Air Intake Duct Requirements Cap and Riser eu Combustion Air Intake 3 in Pipe provided by installer Vertical or Horizontal Chimney No of 90 Elbows Maximum Length in Feet M orGasVent i ls AL Flue Exhaust Vent Cap Alternate Location LPT Ghinney ore vent Germ Category or i i PVC Pipe 36 MIN E DO NOT USE PVC PIPE FOR FLUE fimm i EXHAUST VENT FLUE EXHAUST Side po PUN MIN VENT TEMPERATURES CAN BE IN MESTRE EXCESS OF 400 F FLUE EXHAUST eater VENT MUST BE CATEGORY or Figure 11 CATEGORY III METAL VENT Note Combustion Air Intake Duct Connection Kit Call 1 800 831 7133 for part number for all MasterTemp 125 Heater models
48. heater may be installed as a Category I or Category Ill appliance Vented Appliance Category I Vertical only An appliance that operates with a nonpositive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent see pages 20 22 Vented Appliance Category Ill Vertical or Horizontal An appliance that operates with a positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent see pages 23 25 If you are considering connecting this heater to a pre existing vent system make sure that the vent system meets the appropriate venting requirements as given in this manual on pages 18 27 If not replace the vent system DO NOT use a draft hood with this heater The MasterTemp 125 heater is are capable of a 270 degree discharge rotation and operate with a positive vent static pressure and with a vent gas temperature less than 400 F 204 C The total length of the horizontal run must not exceed the length that is listed in Table 4 on page 19 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 18 Section 3 Installation Instructions HEATER CLEARANCES General Requirements INDOOR INSTALLATION U S OR OUTDOOR SHELTER CANADA The following clearances must be maintained from combustible surfaces TOP aisi ainiaan 6 in 15 cm EXHAUST SIDE 6 in 15 cm HEADER SIDE
49. his heater Install the vent according to the vent manufacturer s detailed instructions Note Maintain clearance between the vent pipe and combustible surfaces according to the vent manufacturer s instructions and code requirements Do not place any insulating materials around the vent or inside the required clear air space surrounding the vent See Table 6 for maximum permissible vent lengths NOTE The allowable vent runs for each vent pipe diameter are different and can not be exceeded Each 90 elbow reduces the maximum horizontal vent run by 12 feet and each 45 degree elbow in the vent run reduces the maximum vent run by 6 ft See the Table 6 below for the maximum vent lengths using 90 elbows The MasterTemp 125 heater is a Category IIT appliance which requires a four 4 inch special gas approved Category 4 in Special Gas Vent III vent pipe and is a forced draft pool and spa heater which Vertical or Horizontal uses positive pressure to push flue gases through the vent pipe to No of 90 Elbows Maximum Length in Feet M the outside Flue gases under positive pressure may escape into the dwelling with any cracks or loose joints in the vent pipe 58 ft 17 7 M or improper vent installation The vent pipe must be of a sealed 2 seam construction such as those listed for use with Category III Appliances and for operating temperatures less than 400 F 204 C Vent pipe construction will be of UL 1738
50. hol rubbing alcohol and vigorously wipe the socket of the Vent Body Immediately wipe the cleaned surfaces dry with a clean cloth or paper towel Repeat for the exterior of the 4 end of the metal Flue Collar Attach the metal Flue Collar to the Vent Body using the RTV supplied with the kit following the vent manufacturer s instructions included with kit Attach the vent pipe to the metal Flue Collar with sheet metal screws WARNING Risk of fire or asphyxiation if vent is notassembled according to manufacturer s instructions or if vent parts from different manufacturers are mixed Vent parts from different manufacturers ARE NOT interchangeable Mixing parts from more than one manufacturer may cause leaks or damage to vent When assembling a vent pick one manufacturer and be sure that all vent parts come from that manufacturer and are specified by the manufacturer for your system Follow manufacturer s instructions local code requirements National Fuel Gas Code requirements U S or standards CSA B149 1 and B149 2 Canada carefully during assembly and installation 15 cm Minimum Clearance to Combustible Materials Listed Termination Ca N Storm Collar 6 Minimum Clearance to Combustible Materials Class B Double Wall Metal Vent Pipe Metal Flue Collar Firestop Vent Body Support Vertical Vent Pipe so adapter does not take weight of pipe
51. icted the Pressure Switch water pressure switch may prevent the burner from firing and cause the Service System light to go on If the light remains on after the filter has been serviced have a qualified service technician check the system For deck level heater installations the Water Pressure Switch is factory set at 3 00 psi 20 6 kPa NOTE See Below Pool Level Installation instructions on page 13 If the pressure switch is one feet 3M below or above the pool water level reset the switch so that it is open when the pump is off and closed when the pump is running Turn the star wheel on the switch clockwise V to raise setting heater below the pool and counterclockwise W to lower the setting heater above the pool see Figure 30 Test the switch after resetting NOTICE When the heater is mounted more than five feet 1 5M above or four feet 1 2M below the deck level a Pressure Switch is no longer adequate A Flow Switch must be Turn star wheel clockwise to raise _ installed instead pressure set point if pressure switch is more than 4 feet 1 2M below water level NOTICE Heater operation with incorrect Pressure Switch setting may cause operation with no water flow Operation of the heater without sufficient water flow may severely damage it ES A e QI RP PENTAIR i Star Wheel A High Limit is a safety device that opens the electrical circuit and shuts off the heater based o
52. ied by the Standard for the Storage and Handling of Liquefied Petroleum Gases CAN CSA B149 2 latest edition or ANSI NFPA 58 latest edition A WARNING Risk of fire carbon monoxide poisoning or asphyxiation if exhaust venting system leaks Only qualified service technicians should attempt to service the heater as leakage of exhaust products or flammable gas may result from incorrect servicing A WARNING Risk of asphyxiation if exhaust is not correctly vented Follow venting instructions exactly when installing heater Do not use a draft hood with this heater as the exhaust is under pressure from the burner blower and a draft hood will allow exhaust fumes to blow into the room housing the heater The heater is supplied with an integral venting system for outdoor installation Avent conversion kit See Page 23 for Part Numbers for Conversion Kits is available for installations in enclosures Canada or indoors U S Use the specified venting and only the specified venting when heater is installed in an enclosure or indoors In Canada this pool heater can only be installed outdoors or in an enclosure that is not normally occupied and has no openings directly into occupied areas See Page 18 for enclosure venting requirements A CAUTION Labelall wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Wiring errors can also destroy the control board Connect heater to 120 or 24
53. installing the gas line be sure to check which gas the heater has been designed to burn This is important because different types of gas require different gas pipe sizes The rating plate on the heater will indicate which gas the heater is designed to burn Table 2 shown on page 15 show which size pipe is required for the distance from the gas meter to the heater The table is for natural gas at a specific gravity of 65 and propane at a specific gravity of 1 55 When sizing gas lines calculate three 3 additional feet of straight pipe for every elbow used When installing the gas line avoid getting dirt grease or other foreign material in the pipe as this may cause damage to the gas valve which may result in heater failure The gas meter should be checked to make sure that it will supply enough gas to the heater and any other appliances that may be used on the same meter The gas line from the meter will usually be of a larger size than the gas valve supplied with the heater Therefore a reduction of the connecting gas pipe will be necessary Make this reduction as close to the heater as possible The heater requires a gas supply of not less than 4 10 2 cm wc and not more than 14 35 6 cm wc Gas supply pressures outside of this range may result in improper burner operation A minimum flowing or dynamic inlet pressure while the heater is running of 4 10 2cm we is required to maintain input rating with no more than a 2 pressure dro
54. llow good swimming pool water chemistry practices When using a chlorinator install it down stream from the heater and at a lower level than the heater outlet Install a corrosion resistant positive seal Check Valve P N R172288 between the heater and the chlorinator to prevent concentrated chemicals from back siphoning into the heater Back siphoning is most likely to occur when the pump stops creating a pressure suction differential Do NOT sanitize the pool by putting chlorine tablets or sticks into the skimmer s When the pump is off this will cause a high concentration of chlorine to enter the heater which could cause corrosion damage to the heat exchanger Three major items that can cause problems with your pool heater are improper pH disinfectant residual and total alkalinity These items if not kept properly balanced can shorten the life of the heater and cause permanent damage CAUTION Heat exchanger damage resulting from chemical imbalance is not covered by the warranty WHAT A DISINFECTANT DOES Two pool guests you do not want are algae and bacteria To get rid of them and make pool water sanitary for swimming as well as to improve the water s taste odor and clarity some sort of disinfectant must be used Chlorine and bromine are universally approved by health authorities and are accepted disinfecting agents for bacteria control WHAT IS A DISINFECTANT RESIDUAL When you add chlorine or bromine to the pool wate
55. lower Adapter Plate Gasket Blower Adapter Plate Flameholder Adapter Plate Gasket Flameholder Assembly Flameholder Combustion Chamber Gasket Flameholder Insulation Cap Flameholder Insert Combustion Chamber Gasket Kit One Piece Metal Chamber Combustion Chamber Assembly 9 bolt Insulation Kit Includes Key No 13 16 17 18 19 Bottom Outer Insulation Blanket 1 Bottom Inner Insulation 1 Top Insulation Top Outer Insulation Blanket Lower Enclosure Insulation One Piece Metal Elbow Combustion Chamber Cover Assembly 9 bolt Metal Vent Cover Heater Top Side Panel Service Panel Side Panel Manifold Heater Bottom Side Panel Flue Stack J Box Cover Screws Clips Kit Panel 8 ea clips amp 8 ea screws Combustion Air Intake Duct Connection Kit Not available separately Not included with heater Order separately Se ai ai ai ai Eus ai ai ak k ak ak ak i eub INS vee ER RR E mA uds a o ncn ono 42001 00518 38404 40978 474981 474980 461063 461062 474978 474977 474979 77707 0011 474994 474952 474990 77707 0008 42001 0074S 474958 42002 0005S 42002 0034Z 474991 474992 42002 00312 474993 42002 0041Z 474292 CALL MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 52 Section 6 Maintenance Replacement Parts MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS WATER SYSTEM Part Description MT125 NA MT1
56. n a water temperature set point within the High Limit Device Arelerence stalelis Gh The MasterTemp 125 heater contains two 2 high limit the back of pressure switch devices which are located on the main inlet outlet header E m PL i PENTAIR L MASTERTEMP 128 bi A Turn star wheel counterclockwise to lower pressure set point if pressure switch is more than 5 feet 1 5M above water level Figure 30 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 4 Operation Instructions 35 SAFETY CONTROLS continued Flame Current Check Point OPERATION OF IGNITION MODULE The Ignition Module see Figure 31 is microprocessor based and operates on 24VAC supplied by the transformer The control utilizes a microprocessor to continually and safely monitor analyze and control the proper operation of the gas flame holder The module with the presence of the flame sensor using flame rectification allows the heater to operate Diagnostic LED 1Flash Air Flow Fault 2 Flashes Flame No Call for Heat 3 Flashes Ignition Lockout OPERATING THE CONTROL PANEL Figure 31 The five operating switches are see Figure 32 Up ana Dom rin POOL ON Press this button to govern heater operation by the pool temperature setting WP PENTAIR SPA ON Press this button to govern heater operation by the MASTERTEMP f HIGH PERFORMANCE HEAT
57. national 42002 0035 42001 00308 77707 0054 42001 0066S 474368S 474367S 4743698 55 C HI LIMIT 42001 00538 1751478 42001 00568 32850 0099 42001 00528 4741038 42001 01078 42001 00618 42002 00078 42001 01048 4741638 42001 01058 4737648 240 V PLUG 42002 0034Z 4726102 42002 00248 Not available separately MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide UK POOL STORE gt PENTAIR 1620 HAWKINS AVE SANFORD NC 27330 919 566 8000 10951 WEST LOS ANGELES AVE MOORPARK CA 93021 e 805 553 5000 www pentairpool com All Pentair trademarks and logos are owned by Pentair or by one of its global affilliates Pentair Aquatic Systems MasterTemp Intel liTouch EasyTouch are trademarks and or registered trademarks of Pentair Water Pool and Spa Inc and or its affiliated companies in the United States and or other countries Unless expressly noted names and brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Water Pool and Spa Inc Those names and brands may be the trademarks or registered trademarks of those third parties Because we are continuously improving our products and services Pentair reserves the right to change specifications without prior notice Pentair is an equal opportunity employer 2014 Pentair Water Pool and Spa Inc All rights reserved This document
58. nels Remove both door access panels 2 Remove the four corner wing nuts that secure the top panel Lift the top panel upward to remove the top panel 3 Rotate the top panel to the desired position located at 90 angles Note that the control panel must NOT be located on the side where the vent is located 4 Replace the top panel down onto the side panels Be sure that there are no wires caught under the panel 5 Secure the top panel using the four corner wing nuts 6 Reattach the door access panels lt Top Panel Door Acess Panel A N Door Acess Panel d gt Figure 20 FINAL INSTALLATION CHECK Check that horizontal vent pipe runs slope uniformly at least 1 4 per foot 2cm per meter to condensate drain s No sags no dips no high or low spots Check that vent is supported at elbows tees and horizontal and vertical runs according to manufacturer s instructions and code requirements Check that vent supports and wall and ceiling penetrations allow free movements up down and sideways without putting any strains on the heater or vent body Check for at least six inch 15cm free air clearance between the heater vent pipe and combustible materials Check that all joints are completely together and sealed In Florida building codes require that the heater be anchored to the equipment pad or platform to withstand high wind pressures created durin
59. ng this usually indicates that the filter and or skimmers should be cleaned some filters may require back washing If the light remains on after the filter skimmers have been serviced the system should be checked by a qualified service technician The SERVICE HEATER light indicates a fault in the heater or its controls If this light comes on shut down the heater See TO TURN OFF GAS TO THE APPLIANCE on page 33 and have a qualified service technician check the system Risk of explosion or fire causing burns or death if safety interlocks are disabled DO NOT attempt to operate heater when SERVICE HEATER light is on or if blower or burner will not start Instead follow instructions under To Switch Off Gas to the Appliance and call a qualified service technician to repair unit Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 36 Section 4 Operation Instructions TEMPERATURE SETTING The heater comes factory set at 78 F for the pool mode and 100 F for the spa mode Using the up and down arrows you can set the thermostats to a minimum temperature of 65 F or a maximum of 104 F If you desire to heat only one body of water the thermostat is capable of an off mode As an example if you only wish to heat the spa and not the pool simply depress and hold the pool down arrow and the thermostat will lower its setting to 65 F then go to an off mode MAXIMUM TEMPERATURE SET POINT Unbol
60. ng and that pressure taps to AFS are OK Verify that vinyl tubing to AFS and Blower is not misrouted kinked disconnected or punctured Replace Air Flow Switch AFS If problem persists replace Blower Connect correctly and retry Does Blower start Replace Blower Does Blower start on ignition try Replace Ignition Control Module Verify Thermistor wiring If OK replace Thermistor A CAUTION remedy a failed switch Do not jumper a safety switch to NOTE ES1 is a spare and should be jumpered MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 YES Rev B Diagnostic LED s SFS Heater starts and runs OK but temperature of exhaust climbs to 450 500 in 3 5 Check Heat Exchanger Coil for leaks liming soot or low flow A ves YES minutes NO Check Thermal Regulator Open at 120 No Heater starts after several tries exhaust temperature stays below 250 OR Heater doesn t start at all exhaust stays cold Correct problem Heater should fire No YES YES Check Thermal Regulator Seats correctly Check pressure and volume of fuel supply ok NOT OK Disconnect the sensor and check continuity across its terminals Resistance should be 3 5 4 0 mega ohms open circuit 0
61. ng systems which do not meet these conditions consult the National Fuel Gas Code ANSI Z223 1 U S or the standards CSA B149 1 and B149 2 Canada Read VERTICAL VENTING NEGATIVE PRESSURE before using this table Table 5 Permitted Minimum and Maximum Vent Heights By Size and Heater Model Type B Double Wall Vent with Type B _ Type B Double Wall Vent with Double Wall Connector in Feet Meters Single Wall Connector in Feet Meters Model 125 Vent Size Medel oni Height min max Height min max EUR s 1 8915 R 46 6 ft 1 8 100 ft 30 5 ARANE RAA 6 ft 1 8 100 f 30 5 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 21 NOTE The allowable vent runs for each vent pipe diameter are different and can not be exceeded Each 90 degree elbow reduces the maximum horizontal vent run by 12 feet and each 45 degree elbow in the vent run reduces the maximum vent run by 6 feet See Table 5 on page 20 for the maximum vent lengths using 90 degree and 45 degree elbows Rev B 8 14 Install the metal Flue Collar in the Vent Body of the heater located under the outside vent cover Fasten the metal Flue Collar to the Vent Body with two 10 sheet metal screws Use high temperature silicone RTV to seal the Flue Collar to the Vent Body Before connecting the metal Flue Collar to the Vent Body wet a clean cloth or paper towel with isopropyl alco
62. ntenance or adjustment by the user Call a qualified service technician if you suspect that the burner may require maintenance Explosion hazard Any heater installed with restrictive devices in the piping system downstream from the heater including check valves isolation valves flow nozzles or therapeutic pool valving must have a relief valve installed as described above Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 46 Section 6 Maintenance AFTER START UP CHECKING WATER FLOW AWARNING Fire or flooding hazard If the unit overheats and the burner fails to shut off follow instructions under To Turn Off Gas to the Appliance page 33 and call a qualified service technician to repair unit After start up the outlet water pipe should feel slightly warmer than the inlet pipe If it feels hot or if you hear the water in the heater boiling there may not be enough water flow to the appliance Make sure that the filter is not plugged If water temperature remains high but the unit continues to operate turn off the appliance and call your service technician SPRING AND FALL OPERATION If the pool is only used occasionally lower the pool thermostat to 68 F 20 C and leave the heater on This will keep the pool and the surrounding ground warm enough so that the heater should restore the pool to a comfortable temperature within about one day WINTER OPERATION Operating this heater conti
63. nting and the number of vent elbows required Horizontal vent runs must slope up 1 4 per foot 2cm M from the heater to allow exhaust condensate to drain and it is recommended to have a condensate drain as described in the venting installation instructions VERTICAL VENTING NEGATIVE PRESSURE See Figures 12 13 and 14 Vent the heater vertically in a negative pressure positive draft system in accordance with the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CSA B149 1 Natural Gas and Propane Installation Codes and local codes Type B Double wall vent connector is recommended however single wallpipeisallowed Vent Body by the National Fuel Gas Code in some circumstances Consult your local code official for detailed information Do not use a draft hood with this heater Clean the Interior Surface 4 x 8 Metal Flue Collar To connect a negative pressure metal gas vent to the heater order the appropriate Metal Flue Collar from the chart below Metal Flue Collar PartNo 4 J SZ 4 Chamber Figure 12 1 See Table 5 to determine allowable vent sizes for your heater NOTICE Table 7 is for installations in which the total lateral vent length that is the horizontal distance from the flue collar to the main vertical portion of the vent is less than 1 2 the total vent height the vertical distance from the flue collar to the vent termination and which have three or less elbows in the system For venti
64. nts 38 Heater WilliNot Fire Troubleshooting ra rrr erroe Ep a EP UR P E pe a i ri po He rues LED Diagnostics citt tenete Burner Heat Exchanger Troubleshooting Section 6 Maintenance eene Care and Maintenance ite br tere tn Pressure Relief Valve esent Pesado EET Spring Fall and Winter Operation essssessseseeneennee nennen nter tentent tte tette E iE Naa tte tent tentent tentent tests Maintaining Pool Temperature irr bc E HEC ROI E EE LU Ee LEER LU ERE aaa Energy SAVING TPS nerean an det Rede ae dte teen ordeo otto cu ota and Da etre oe ChemicaliBalalite nia e a NE MU E a eae ana Sena ILI S Replacement Pas e Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 4 Section 1 Heater Identification Information Section 1 Heater Identification Information To identify the heater see rating plate on the inner front panel of the heater There are two designators for each heater one is the Model Number and the other is the Heater Identification Number HIN a Heater Identification Number HIN The following example simplifies the identification system 1 MT MasterTemp 125 2 Model Size 125 Input rating Btu hr X 1000 3 Fuel Type LP Propane gas or NA Natural gas 4 Construction STD Standard Model HEATER IDENTIFICATION INFORMATION HIN H I N H
65. nty If you install the 240V plug and connect the heater to 120 volts line current the heater will not operate e f any of the original wiring supplied with this heater must be replaced installer must supply No 18 AWG 600V 105 C UL approved AWM low energy stranded copper wire or it s equivalent Please read the boxes headed IMPORTANT READ ME FIRST on pages 37 and 45 before proceeding 1 All wiring must be in accordance with all applicable codes 2 Theheater when installed must be electrically grounded and bonded in accordance with local codes or in the absence of local codes with the National Electrical Code or the Canadian Electrical Code as applicable A bonding lug is provided on the outside of the panel under the vent for this purpose 3 Electrical power circuits to the pool heater must follow local codes and National Electrical Code or Canadian Electrical Code as applicable 4 All wiring between the heater and devices not attached to it or between separate devices which are installed in the field must be Type T wire rated for 35 C rise 5 All line voltage wiring shall be enclosed in approved flexible conduit and shall be securely attached to the field wiring box located inside the access door panel The conduit or cable connector at the field wiring box should contain an insulating bushing or its equivalent to prevent abrasion of the wires as they enter the box 6 Thefilter pump should run continuously
66. nuously at water temperatures below 68 F 20 C will cause harmful condensation and will damage the heater and void the warranty f the heater has been drained for freezing condition do NOT turn ON until the system is circulating water Water trapped in the heat exchanger can result in freeze damage to the exchanger or headers Freeze damage is specifically not covered by the warranty When starting the heater for the swimming season with a water temperature below 50 F 10 C the heater may be used to heat the water however make sure that the heater operates continuously until the water temperature reaches the heater s minimum setting of 68 F 20 C During cold weather if there is no danger of freezing operate the filter pump continuously even if the heater is not operating If air temperatures are expected to drop below freezing 32 F 0 C shut down the heater and winterize it For outdoor heaters in freezing climates shut the heater down and drain it for winter as follows 1 Turn off electrical supply to the heater and pump 2 Close main gas control valve and manual gas valve located outside the heater Turn switch on heater gas valve to OFF 3 Disconnect the INLET and OUTLET unions from the system plumbing and drain the heat exchanger and manifold adapter completely Ifthe heater is below pool water level be sure to close isolation valves to prevent draining the pool 1solation valves are not required
67. om your Pentair dealer If your dealer cannot supply you call Customer Support at 1 800 831 7133 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 50 Section 6 Maintenance Replacement Parts X19 Combustion Chamber Gasket Chamber Assembly Combustion g gt X 2 299 NN EER Iw N efess rR W 0902010 AZ TRAY MK Loo gt PEN ASS FER S Io 507 QN we Set Oo d fSaacd MasterTemp 125 HEATER REPLACEMENT PARTS Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Section 6 Maintenance Replacement Parts 51 MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS BURNER SYSTEM Key Part Description Qty Model MT125 NA MT125 LP 20om N Oo 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Rev B 8 14 Combination Gas Control Valve Kit 3 4 Union Gas Orifice Gas Orifice O Ring Gas Orifice Kit NG Incl Key Nos 3 and 4 t Gas Orifice Kit Propane Incl Key Nos 3 and 4 t NG to Propane Conversion Kit Incl Key Nos 3 and 4 t Propane to NG Conversion Kit Incl Key Nos 3 and 4 t Air Blower Kit Natural Gas Units Propane Units Air Orifice Kit Includes Key Nos 6 and 7 Air Orifice Kit Air Orifice Grill Blower Adapter Plate Gasket Kit Includes Key Nos 8 9 10 12 Flameholder Kit Includes Key Nos 10 11 12 13 B
68. opane gas is installed in a pit or other low spot Propane is heavier than air Do not install the heater using propane in pits or other locations where gas might collect Consult your local building code officials to determine installation requirements and specific installation restrictions of the heater relative to propane storage tanks and filling equipment Installation must meet the requirements for the Standard for the Storage and Handling of Liquefied Petroleum Gases CAN CSA B149 2 latest edition or ANSI NFPA 58 latest edition Consult local codes and fire protection authorities about specific installation restrictions The heater is design certified by CSA International for installation on combustible flooring in alcoves basements in closet or utility rooms in the U S GARAGE OR UTILITY ROOM INSTALLATION In Canada the heater must be installed in a room that is not normally occupied and has no openings directly to occupied areas Risk of fire and explosion if installed at floor level in an automotive garage or near gasoline or flammable liquid storage Gasoline fumes are heavier than air and will settle to floor level in closed spaces Gasoline fumes and spilled gasoline or other volatile liquids such as some paints and varnishes will travel across the floor and can be ignited by a gas appliance In any utility room or residential garage installation install the heater with the base at least 18 inches 5M above the floor
69. or Vertical Venting Positive Pressure Connecting Special Gas Venting esses neee nennen kaaa Erene tto tette tente ntte tent Ai Outdoor Shelter Vent Installation seee Garage or Utility Room Installation scenes ConttoliPanel Indexing io tiae rir ea s Final Installation Check recenter tenens El ctrica Connections ue accedit cre DERE DRE p D du UES Fireman s Switch Connection Remote Control Connections eessseeenee eterne tenentes 29 Masterlemp 125 Heater Wiring DIaBralcss idco eed ed op d b delete RU RM ERE tede 30 Electrical Schematic Ladder Didgr m 2 e e Le R RR te Rd ci gt ep p the RR Leone Enel ota P cree e ER 31 Section oi 32 Basic System Operatioin t iere e ER eterni ann ace aai e M be Mee eee dite eel roo Per pees 32 HSI Hot Surface lgnition Elghting OperaliOfi o dei dtt ceo re e ee a t ipe perder EEES 32 eun 33 TO TUMON aas TO ADDIIaII B esca acne tn nente bn utu sapor Tec pete bueno RI reeset reece 33 Safety Controls E 34 36 Section 5 Troubleshooting sa iccccsicseccestanet encacnecccsxeses vecrevscunavececuesenseducuesinevanceeecxexeesscsecehsborexees 37 Initial Troubleshooting and Troubleshooting Chart ssssseseeeeeentetnnte tnter tentent tentent
70. or or Control Board to correct overheating Verify that wiring is OK and pressure tap is not blocked Re place Pressure Switch YES Disconnect wires F1 and F2 from Ignition on YES THERMISTOR on CONTINUE Replace Blower YES Verify that wires BM and F1 are correctly connected at the YES terminal strip see N Heater Connection Diagram Page 30 NO Control Module and NO short them together NO 3 Does Blower come al Verify that water flow rate is above minimum required for heater NO Service pump and filter to restore proper flow dd vES CONTINUE Adjust Water Pressure Switch to close with pump running and open with pump off Does Blower operate YES j No Disconnect Blower and check for line voltage between pins 1 and 3 of Blower Connector on ignition try i NO Check for 24 VAC between 24 VAC and GND terminals on Ignition Control Module on ignition try Check that IND wire is correctly connected No Verify correct connection of wiring between 24 VAC and IND terminals on Ignition Control Module and Control Board and replace Control Board Verify that there is no block age in Blower intake Heat Exchanger and exhaust and that exhaust is not too long see Indoor Vent Installation Page 23 Verify correct connection of wiri
71. ough the bottom and the top of the control box and past the junction box P i o _ D 5 Close control box cover 6 Re install the access door panels 2L za oO JUNCTION BOX I gt 1 I gt gt 4 To control heaters that are operated in parallel connect wiring at same locations on heater as 2 Wire or 3 Wire Control It is imperative that each control circuit is isolated from the other control circuits to avoid that current will flow from one heater to another through the control circuits NOTICE The fuse for the Fireman s Switch is a 1 25 Amp 14 x 4 fast blow fuse which is commonly available Time Clock or Remote l Purchase Separately l Supplies Power to l Circulator Pump Fireman s Switch Completes the heater GROUND GND 1 9 24 Volt AC Control Board Circuit e DO NOT connect this Circuit to Line Voltage Figure 23 Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 30 Section3 Installation Instructions HEATER WIRING DIAGRAM 3 WIRE SYSTEM CONNECTION DIAGRAM AGS Switch Air Flow Switch Stack Flue Sensor Extra Switch 1 Gas Valve Hi Limit Switch Pressure Switch s f Yw Y Y M H ENNE 0 y A Y LI L1 j 0 PR breve PR yx PS 2rooQo o 9 rs n sFzgi gt 2 NALP HLS 8 amp Models Only ES1 amp dii YW YBL E YR Y Y Y Y AFS g OPERATING CONTR
72. p between static and dynamic The gas supply must be installed in accordance with the National Fuel Gas Code ANSIZ223 1 or standard CSA B149 1 Natural Gas and Propane Installation Codes as applicable and all applicable local codes Install a manual shut off valve and a sediment trap and union located outside the heater panels see Figure 6 Do not use a restrictive gas cock The following minimum gas pipe sizes are recommended for natural gas supply piping see Table 2 on page 15 For low pressure LP gas pipe size may be reduced by 1 4 with a minimum pipe size of 1 2 Check for compliance with local codes The heater and any other gas appliances must be disconnected from the gas supply piping system during any pressure testing on that system greater than 75 PSI The heater and its gas connection must be leak tested before placing the heater in operation Do not use flame to test the gas line Use soapy water or another nonflammable method NOTE A manual main shut off valve must be installed externally to the heater AWARNING DO NOT INSTALL THE GAS LINE UNION INSIDE THE HEATER CABINET THIS WILL VOID YOUR WARRANTY 18 24 of 3 4 Manual Gas line from Shut off Valve Valve 1 Dia or larger See Recommended Pipe Sizes Chart Bell Reducer SEDIMENT TRAPS Install a sediment trap and union located outside the heater panels in accordance with National code requirements Do not use a restrictive gas cock
73. pool cleaner is also operating If the circulation pump suction is plugged for example by leaves there may not be adequate flow to the heater Do not rely on the pressure switch in this case MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 13 VALVES When any equipment is located below the surface of the pool or spa valves should be placed in the circulation piping system to isolate the equipment from the pool or spa Check valves are recommended to prevent back siphoning Back siphoning is most likely to occur when the pump stops creating a pressure suction differential Do NOT sanitize the pool by putting chlorine tablets or sticks into the skimmer s When the pump is off this will cause a high concentration of chlorine to enter the heater which could cause corrosion damage to the heat exchanger Exercise care when installing chemical feeders so as to not allow back siphoning of chemical into the heater filters or pump When chemical feeders are installed in the circulation of the piping system make sure the feeder outlet line is down stream of the heater and is equipped with a positive seal noncorrosive Check Valve P N R172288 between the feeder and heater MANUAL BY PASS Where the water flow rate exceeds the maximum 70 GPM 265 LPM a manual bypass should be installed and adjusted After installing the valve adjust the valve to bring the flow ra
74. r a portion of the disinfectant will be consumed in the process of destroying bacteria algae and other oxidizable materials The disinfectant remaining is called chlorine residual or bromine residual You can determine the disinfectant residual of your pool water with a reliable test kit available from your local pool supply store You must maintain a disinfectant residual level adequate enough to assure a continuous kill of bacteria or virus introduced into pool water by swimmers through the air from dust rain or other sources Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 48 Section 6 Maintenance CHEMICAL BALANCE continued zu RO H C It is wise to test pool water regularly Never allow chlorine residual to drop below 0 6 ppm parts per million The minimum level for effective chlorine or bromine residual is 1 4 ppm pH The term pH refers to the acid alkaline balance of water expressed on a numerical scale from 0 to 14 A test kit for measuring pH balance of your pool water is available from your local pool supply store see Table 12 Muriatic Acid has a pH of about 0 Pure water is 7 neutral Weak Lye solution have a pH of 13 14 RULE 7 4 to 7 6 is a desirable pH range It is essential to maintain correct pH see Table 12 If pH becomes too high over alkaline it has these effects 1 Greatly lowers the ability of chlorine to destroy bacteria and al
75. r Important Notices in Introduction MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 6 Maintenance 47 MAINTAINING POOL TEMPERATURE To maintain pool temperature make sure that the heater switch and valves are reset to pool settings after using the spa ENERGY SAVING TIPS 1 Keep the pool or spa covered when not in use This will reduce heating costs reduce water evaporation conserve chemicals and reduce load on the filtering system 2 Reduce pool thermostat to 78 F 25 C or lower reduce spa temperature to 100 F 38 C This is accepted as being the most healthy temperature for swimming by the American Red Cross 3 Usea time clock to start the filter pump at 6 a m or later The swimming pool loses less heat after daybreak 4 For pools used only on weekends lower the thermostat setting by 10 F to 15 F 5 C to 8 C during the week to reduce heat loss A properly sized heater will restore normal temperature within one day 5 Turn the heater off when the pool will not be used for an extended period 6 Follow a regular program of preventive maintenance for the heater each new swimming season Check operation of the heater and its controls CHEMICAL BALANCE POOL AND SPA WATER Your pool heater was designed specifically for your spa or pool and will give you many years of trouble free service provided you keep your water chemistry in proper condition Water chemistry should fo
76. r contains i i gt gt no shut off valves or other flow restrictions that could prevent gt 3 gt gt flow through the heater except for pool installations as noted From Pool 3 Way 3 Way Valve Valve below or winterizing valves where needed To switch flow between the pool and spa use a diverter valve Do not use any valve that can shut off the flow Lu Install the chemical feeder downstream of the heater Install a chemical resistant one way check valve between the heater and the chemical feeder to prevent back siphoning through the heater when the pump is off NOTICE f the heater is plumbed in backwards it will cycle continuously Make sure piping from filter is not reversed when installing heater Connect the heater directly to 1 5 PVC pipe using the integral unions provided Heat sinks are not required The low thermal mass of the heater will prevent overheating of the piping connected to the pump even if the heater shuts down unexpectedly If you are using a flexible corrugated hose for aboveground systems use only Pentair approved flexible hose kits P N 155151 6 ft and P N 155005 12 ft Occasionally a two speed pump will not develop enough pressure on the low speed to operate the heater In this case run the pump at high speed only to operate the heater If this does not solve the problem do not try to run the heater Instead correct the installation Do not operate the heater while an automatic
77. r so to be sure it is being maintained See your local pool dealer for help in properly balancing the water chemistry WATER CHEMISTRY PARAMETERS Disinfectant levels Minimum Ideal Maximum Free Chlorine ppm 1 0 2 0 4 0 5 0 Combined Chlorine ppm None None 0 2 Bromine ppm 2 0 4 6 10 0 Other Sanitizers Levels not established Consult local health department before use Chemical Values pH 7 2 7 4 7 6 7 8 Total Alkalinity Buffering ppm 60 80 100 180 as CaCO3 Salt ppm 2000 3200 5000 Total Dissolved Solids ppm N A N A 1 500 ppm TDS at startup Calcium Hardness ppm as CaCO3 150 200 400 500 1 000 Heavy Metals None None None Biological Values Algae None None None Bacteria None None Refer to Local Code Start up TDS includes source water TDS and any other inorganic salt added at start up Table 7 NOTE Failure to adhere to the listed water chemistry parameters may result in premature failure of the heat exchanger and will void the warranty MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 6 Maintenance Replacement Parts 49 MasterTemp 125 HEATER REPLACEMENT PARTS For complete Electrical System parts breakdown Key Nos 1 through 4 See Page 53 For complete Burner System parts breakdown Key Nos 5 through 7 See Page 51 For complete Water System parts breakdown Key Nos 8 through 9 see Page 52 Repair Parts are available fr
78. rations Use Listed thimble for wall penetrations Use a Listed roof flashing roof jack or roof thimble for all roof penetrations Do not fill the space around the vent that is the clear air space in the thimble or fire stop with insulation The roof opening must be located so that the vent is vertical Do not run the heater vent into a common vent with any other appliance Fire Hazard Do not ventthe heater directly into a masonry chimney Installation into a masonry chimney must use a chimney liner and must meet the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CSA B149 1 Natural Gas and Propane Installation Codes requirements and all local code requirements Risk of fire carbon monoxide poisoning or asphyxiation It is recommended to use a CO Monitor and Fire Alarm in rooms that contain gas fired appliances MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 23 HORIZONTAL OR VERTICAL VENTING POSITIVE PRESSURE See Figures 15 16 and 17 Category III Vent the heater either horizontally or vertically using an optional vent adapter of the 4 inch special gas approved Category III vent pipes Install the vent pipe in accordance with local codes and the provisions of the National Fuel Gas Code ANSI Z223 1 U S or the standards CSA B149 1 Natural Gas and Propane Installation Codes Canada and the vent manufacturer s instructions Do not use a draft hood with t
79. rer may cause leaks or damage to vent When installing a vent pick one manufacturer and be sure that all vent parts come from that manufacturer and are specified by the manufacturer for your system Follow manufacturer s instructions and local and National Fuel Gas Code U S or CSA B149 1 Natural Gas and Propane Installation Codes Canada requirements carefully during assembly and installation Install vent pipe so that it can expand and contract freely as the temperature changes Support the vent pipe according to applicable codes and vent manufacturer s instructions Pipe support must allow the vent pipe free movement out and back from side to side or up and down as necessary without putting a strain on the heater or vent body It is recommended to slope the horizontal pipe runs up from the heater at least 1 4 per foot 2cm M Install Approved condensate drains at low points where condensate might collect Plumb condensate drains to a drain through hard piping or high temperature tubing such as silicone rubber or EPDM rubber do not use vinyl or other low temperature tubing Follow drain manufacturer s installation instructions Use an Approved firestop for floor and ceiling penetrations Use an Approved thimble for wall penetrations Use an Approved roof flashing roof jack or roof thimble for all roof penetrations Do not fill the space around the vent that is the clear air space in the thimble or firestop
80. sing requirements Improper installation and or operation could create carbon monoxide gas and flue gases which could cause serious injury or death Improper installation and or operation will void the warranty Exhaust from this pool heater contains toxic levels of carbon monoxide a dangerous poisonous gas you cannot see or smell Symptoms of carbon monoxide exposure or poisoning include dizziness headache nausea weakness sleepiness muscular twitching vomiting and inability to think clearly IF YOU EXPERIENCE ANY OF THE ABOVE SYMPTOMS IMMEDIATELY TURN OFF THE POOL HEATER LEAVE THE VICINITY OF THE POOL OR SPAAND GET INTO FRESHAIR IMMEDIATELY THE POOL HEATER MUST BE THOROUGHLY TESTED BY A GAS PROFESSIONAL BEFORE RESUMING OPERATION EXCESSIVE CARBON MONOXIDE EXPOSURE CAN CAUSE BRAIN DAMAGE OR DEATH NEVER use this pool heater indoors without specified ventilation system and properly installed vent pipe NEVER use this pool heater in the home or in partly enclosed areas such as garages unless the specified ventilation system is used If used outdoors install far from open windows doors vents and other openings Pentair strongly recommends that all vents pipes and exhaust systems be initially and periodically tested for proper operation This testing can be accomplished by using a hand held carbon monoxide meter and or by consulting with a gas professional Pool heaters must be used in conjunction with carbon monoxide
81. structed 2 Keep heater area clear and free from combustibles flammable liquids and chemicals 3 Check that all water connections are tight 4 Water must be flowing through the heater during operation Make sure that pool spa is filled with water and have pump operating Check that water flow is unobstructed from the appliance When operating for the first time or after an extended shut down run filter pump for several minutes to clear all air from the system Rev B 8 14 OPERATING INSTRUCTIONS 10 11 12 13 14 15 16 TO TURN OFF GAS TO APPLIANCE Section 4 Operation Instructions 33 STOP Read the safety information on page 32 Set both pool and spa thermostats to the lowest settings Water Pressure Switch Turn off all electric power to the appliance Turn OFF the Manual Shut Off Valve as shown below This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand Remove the access door panels by unfastening the two 2 screws located on each door then lift up and out from the bottom of the panel to remove If necessary the screws may be used as handles see Figure 26 Toggle Style Valve Pull toggle toward you to turn gas off see Figure 27 Figure 26 Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow B in the Before Start up instructions pag
82. sulting in your state of the art heater We reserve the right to make improvements which change the specifications of the heater without incurring an obligation to update the current heater equipment These heaters are designed for the heating of chlorine bromine or salt system swimming pools and spas or in non stationary installations and should never be employed for use as space heating boilers or general purpose water heaters The manufacturer s warranty may be void if for any reason the heater is improperly installed and or operated Be sure to follow the instructions set forth in this manual A CAUTION OPERATING THIS HEATER CONTINUOUSLY AT WATER TEMPERATURE BELOW 68 F WILL CAUSE HARMFUL CONDENSATION AND WILL DAMAGE THE HEATER AND VOID THE WARRANTY Do not use the heater to protect pools or spas from freezing if the final maintenance temperature desired is below 68 F as this will cause condensation related problems Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 6 Section 2 Warning and Safety Instructions CODE REQUIREMENTS Installation must be in accordance with all local codes and or the latest edition of the National Fuel Gas Code ANSI Z223 1 and the latest edition of the National Electrical Code NFPA 70 US Installation in Canada must be in accordance with the latest CAN CGA B149 1 or 2 and CSA C22 1 Canadian Electric Code part 1 The heater when installed must be electric
83. t Tta Tae Ss 12 Man al RII M 12 Water Connections ssseeeeeeeenenntennennnnennnnnes 13 Below Pool Installation 13 Gas Connectiors dritte ia aaa 14 Sediment Maps zb estre iden et bibdub fet mte ante SUL 14 GaS Pipe SIZing near eH e tegere Lee e RA Rp Bas 15 Testing Gas Pressure Gas Pressure Requirements essen nennen treten tentent tentent tete E 15 Outdoor Installation US and Canada Heater Clearances ssssseeenennete nete 16 O tdoor Installation Veriting Gudenes 5 6 tree Rr rer t MH Epi n prd dr tr aene 17 Indoor Venting General Requirements Category and Category IIl requirements s 17 Heater Clearances General Requirements Indoor Installation for US or Outdoor Shelter for Canada 18 Outside Vent Cover Removal etta rette pede eer ter edi be bct edet Re Bode etant eben 18 Combustion AIF SUDDIV s sodes cadet eetratitistu uin e test tt onan Ett sva Ar LIRE 18 Direct Air Intake Exhaust Duct using 3 inch PVC Pipe Indoor Installation Corrosive Vapors and Possible Causes 19 Vent Installation Indoor Installation for U S or Outdoor Shelter for Canada ssseteetnnnnn 20 Vertical Venting Negative Pressure sssseseesseenne nennen tnnt tnnt nennen tette tenente tremere tnnt tentent rettet toten Horizontal
84. t and remove the door panels see Figure 33 2 Access the control panel board on the underside of the top cover Locate the yellow button on the corner of the control board 3 Push the Max Temp Set Point button on the back of the control board see Figure 34 The following sequence should happen A Theunit will come on and the POOL ON light will come on B Press the A TEMP or V TEMP pad on TOP of the panel to set maximum pool temperature C Wait up to 30 seconds the POOL ON light will go off and the SPA ON light will come on To override the time delay push the Max Temp Set Point button again D Press the A TEMP or V TEMP button on the control panel and set maximum spa temperature to 104 F 40 C or less E Wait up to 30 seconds the SPA ON light will go off and the unit will shut down To override the time delay press the Max Temp Set Point button again 4 Reinstall the access door panels Door Acess Panel 5 A Rh P al L T bs t 3 Figure 33 Figure 34 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 5 Troubleshooting 37 Troubleshooting Instruction Initial Troubleshooting Only qualified trained service technicians with appropriate test equipment should service the heater Remember that all parts of the system affect heater operation Before starting this troubleshooting procedure mak
85. te within the acceptable range Then remove the valve handle or lock it in place to avoid tampering See Figure 5 Model Min GPM LPM Max GPM LPM 70 265 Do not exceed the maximum recommended flow rate for the connecting piping Table 1 See page 34 for Pressure Relief Valve Installations BELOW POOL INSTALLATION OUTLET TO POOL If the heater is below water level the pressure switch must be ad justed This adjustment must be done by a qualified service techni Figure 5 cian See following CAUTION before installation BELOW OR ABOVE POOL INSTALLATION The water pressure switch is set in the factory at 3 00 PSI 0 75 PSI This setting is for a heater installed at pool level If the heater is to be installed more than 1 above or below the water pressure switch must be adjusted by a qualified service technician See page 34 Figure 29 FLOW SWITCH If the heater is installed more than 5 above the pool or more than 4 below the pool level you will be beyond the limits of the pressure switch and a flow switch must be installed Locate and install the flow switch externally on the outlet piping from the heater as close as possible to the heater Connect the flow switch wires in place of the water pressure switch wires Rev B 8 14 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 14 Section 3 Installation Instructions GAS CONNECTIONS GAS LINE INSTALLATIONS Before
86. ting Burner Troubleshooting SYMPTOM CAUSE REMEDY Loud high pitched whine Flame is too rich Verify pressure tap between gas valve and blower inlet See page 16 and verify that the gas regulator setting is 0 2 0 5cm wc Contact a qualified technician or service agency to replace the gas orifice Flame is fluttery Exhaust may have acrid smell or burner may fail to stay lit Flame is too lean See page 16 and verify that the gas regulator setting is 0 2 0 5cm wc Contact a qualified technician or service agency to replace the gas orifice Burner pulsates or surges especially on ignition Exhaust vent is too long Reduce length of exhaust vent and or number of elbows Combustion appears normal but flame does not stay lit Flame current is not being sensed Heat Exchanger Troubleshooting SYMPTOM CAUSE Checkfor wet or damaged igniter with low resistance to ground Replace with new igniter Verify burner flameholder is properly grounded Replace Ignition Control Module REMEDY Boiling in heat exchanger May be accompanied by bumping sounds Low water flow to heater Heat exchanger plugged Bypass valve stuck open Thermal governor stuck closed Service pump and or filter Service heat exchanger Correct water chemistry Service bypass valve Replacethermal governor Sweating Thermal governor failed
87. tion must provide sufficient air supply for proper combustion and ventilation of the surrounding area The minimum requirements for the air supply specify that the room in which a heater is installed should be provided with two permanent air supply openings one within 12 inches 30cm of the ceiling the other within 12 inches 30cm ofthe floor for combustion air in accordance with the latest edition of ANSI Z223 1 or the National Fuel Gas code the CSA B149 1 Natural Gas and Propane Installation Codes as applicable and any local codes that may apply These openings shall directly or through duct connect to outdoor air Note For indoor installations where combustion air might be insufficient see Direct Air Intake Duct with 3 inch PVC Pipe Indoor Installation on page 19 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Air Supply Requirements Guide for MasterTemp 125 Heater Minimum Net Free Open Area for Each Opening Square Inches Centimeters m All Air From Inside Building All Air From Outside Building 125 200 sq in 200 sq in 50 sq in 50 sq in 1290 sq cm 1290 sq cm 323 sq cm 323 sq cm Area indicated is for one of two openings one at floor level and one at the ceiling Table 3 Rev B 8 14 Section 3 Installation Instructions 19 Direct Air Intake Duct with 3 inch PVC Pipe Indoor Installation For indoor heater installations where combustion air supply mi
88. to public E xi d Forced Air walkways inished grade e s is Inlet 3 Minimum clearance if higher horizontal distance to exhaust opening is less than 10 feet Figure 17 8 Vent Termination Horizontal The terminal must be located U S See Figure 17 at least 3 and at most 12 out from the wall see Figure 18 following the vent manufacturer s instructions at least 12 above finished grade or the normally expected snow accumulation level whichever is higher e at least 4 feet below or horizontally from or 1 foot above any doors or windows or gravity air inlet to a building at least 3 feet above any forced air inlet located within 10 feet e at least 4 feet horizontally from electric meters gas meters regulators and relief equipment at least 7 feet above grade adjacent to walkways or similar traffic areas The terminal must be located Canada See Figure 17 at least 10 feet 3 3M from any opening into a building atleast 12 3M above finished grade or the normally expected snow accumulation level whichever is higher atleast 4 feet 1 2M horizontally from electric meters gas meters regulators and relief equipment at least 7 feet 2 1M above grade adjacent to walkways or similar traffic areas Allow at least three feet 1M vertical clearance over vent termination when t
89. top of the vent at least 10 feet 3m below or to either side of any opening into a building Orient the heater for convenient access to the water connections and the gas and electrical connections Note Check local building codes for installing the heater from any property line set back requirements see page 17 for installation illustration Sitel TMi ormore If installing the heater next to or near an air conditioning unit or a heat pump allow a minimum of 36 in 91 4 cm between Li the air conditioning unit and the heater g Drenar MASTERTEMP 125 Figure 8 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide Rev B 8 14 Section 3 Installation Instructions 17 OUTDOOR INSTALLATION VENTING GUIDELINES Vat window or door SIDE VIEW z Property e Lad E 5 E m fs 7 AS eS e Ld aee eo ao INEO so Force Air Inlet Building PENTAIR MASTERTEMP 128 Vent Termination Must be at least 3 ft above any forced air inlet located within a 10 ft radius Must be located 6 in away from the building wall and the following distances away from any building wall openings included but not limited to vented eaves doors windows gravity air inlet 4 ft below Aft horizontally PAID A ALI LD PI LD I PD APD AA LLLP Figure 9 INDOOR VENTING General Requirements The
90. trol module see HEATER WILL NOT FIRE C and D Pages 40 and 41 Check fuse and all other 24V components for damage GO TO Depress POOL or SPA ON button on Membrane Pad Does POOL or SPA LED come on YES Heater should fire on demand for heat NO Check for line voltage to heater NO Restore power to heater Check for 24 VAC at sec ondary of Transformer Y NO Check for Line Voltage between L1 and L2 terminals on Terminal Board NO m Check wiring connections between power supply and Junction Box and between Junction Box and Terminal Board restore continuity YES Check for Line Voltage at Transformer primary pins White connects to Pin 3 on Transformer Black to Pin 2 Orange to Pin 1 240V check Pin1 to Pin 3 120V check Pin 2 to Pin 3 NO Check wiring connections between Terminal Board and Transformer primary and restore continuity YES Replace Transformer Jumper Fireman s Switch at Terminal Board and depress POOL or SPA ON button on membrane pad Does SPA or POOL LED come on YES Check Fireman s Switch circuit connections time clock wiring external controller relay NO Leaving jumper in place check for 24 VAC between Fireman s Switch terminals and ground NO Remove jumper Check ribbon cable
91. ur building Immediately call your gas supplier from a neighbor s phone YOU R Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department SAFETY d pee DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or other appliances Pentair Water Pool and Spa Inc 1620 Hawkins Ave Sanford NC 27330 800 831 7133 or 919 566 8000 10951 W Los Angeles Ave Moorpark CA 93021 800 831 7133 or 805 553 5000 Contents Section 1 Heater Identification Information eeeeeeeeeeeeeeree eene 4 Section 2 Warning and Safety Information eeeeeeeeeeeeeree eene 5 Important ie C 5 Warranty InformallOn ss com tr n ERU a a ape O ORDER 5 Code Regquitements 5 02 Ltd nein dpt Gar n RR etie tu Ee ele aie dust ere red 6 Consumer Intormation and Safety TrfOtfmallon rie dte E op Gu Uo 6 9 IE uibem T 9 zu 10 Heater Description C 10 Putting the Heater imo SelViC8i un Gerd erit rettet n a nitet edi add tup et ite 10 Specifications C 11 Pl rmbindg CONNCCHONS size ncn tern xem e catu t td parui tfta eiu at S redi meats 12 ValV88 iniecta dut i Ead E Ou
92. with insulation The roof opening must be located so that the vent is vertical Vent Termination Vertical See Figures 15 and 16 for height of vent termination above the roof Use an Approved vent terminal specified by local and national codes and your manufacturer s instructions A roof termination must be vertical In Canada the Vent Cap location shall have a minimum clearance of 4 feet 1 2M horizontally from electric meters gas meters regulators and relief openings Make sure entire installation is sealed according to approved standard MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide eas Vent Cap and Riser Furnished by Installer _ Chimney or Gas Vent 4 Outlet Air Opening Inlet Air Opening EL L Ui a e i a PENTAIR t EINE MASTERTEMP 128 Figure 15 m VentGap and Chimney or Gas Vent Riser Furnished by Installer Side Wall Vent PENTAIR MASTERTEMP 125 E Outlet Air Opening Inlet Air Opening Figure 16 Rev B 8 14 Section 3 Installation Instructions 25 4 Min lt ae Vent d Vent Termination Termination uz Vent y Termination A HHHH At least 7 x above grade 1 Minimum Md b Gas Meter

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