Pentair MT Sizes 500 User's Manual
Contents
1. Figure 1 Heater Identification model nomenclature 4 Pentair Water Commercial Pool and Spa SECTION 2 Clearance Indoor Outdoor Installation from in in 2 1 Boiler Placement Top 30 762 unobstructed The pool heating boiler must be placed to Water Conn side 12 305 24 610 provide specific clearances on all sides for maintenance and inspections There must also be PUMP SIde BU Toe oh 610 minimum distances maintained from combustible Front Alcove unobstructed surfaces These clearances also apply to Rear 8 203 24 610 noncombustible materials because the pool heating e boiler requires air circulation for proper operation 6 192 The pool heating boiler should be mounted on a Hot water pipes per code per code level surface An integral base for an installation on Water connection and pump side clearances of 24 610mm combustible flooring is provided as standard and front clearances of 48 1219mm will allow easier equipment on outdoor models For indoor models Using type B vent refer to Manufacturer s Instructions special base rails part number 10539000 must be used for combustible flooring Do not install a pool heating boiler on carpeting Under the national Fuel Gas Code ANSI Z223 1 it is permissible to place the boiler on floors other than noncombustible when the installa2. 5 0692901 ZOESZSOL 1065260 1940219 uoneiog nuy 99 5 60629901 20629901 10629901 Alquessy ld 18A09 99 GIZ 009 00S ON 921 9215 921 uondu9s9q Kay 24 Pentair Water Commercial Pool and Spa 13 13 38 13 75 17 63 T 12 14 38 T T 12 75 18 63 T 9 9 9 9 2 2 2 2 j 500 i Li 600 Assembly 2220051701 3 3 Assembly 20051702 L 3 2 2 2 2 T2000102 12005602 12005702 12005802 13 19 5 13 19 11 25 12 19 12 19 T 6 T T 9 E 12 25 T 0 0 0 0 0 0 0 0 715 2 2 850 i Assembly 20051703 d Assembly 20051704 d 12000100 T2023602 T2005902 2 2 mum T2023602 T2006002 2 13 75 19 18 13 19 19 8 T 12 75 19 19 T T 12 19 19 9 T 0 0 0 0 1010 1 1200 Assembly 20051705 3 Assembly 20051706 B T2005702 T2023602 T2006102 s 2 1 2023602 T2023602 72006202 6 gt 19 19 17 63 48 12 19 19 18 63 s 0 o When ordering tiles Assembly number is 1430 P for all tiles Part numbers shown for the front 4 4 i Assembly 20051707 of unit
3. 091 8uonsuuy 5 oso Buueeg pue yeys oso 18109 02 JeeH Oued 6L Oued 1eddf Z4 PISIYSPUIAA 11014 91 ON uonduoseg 28 Pentair Water Commercial Pool Spa Commercial Pool Heating Boiler Page 29 30 Pentair Water Commercial Pool Spa E Commercial Pool Heating Boiler Page 31 Pentair Water Commercial Pool and Spa 2006 Pentair Water Pool and Spa Inc All rights reserved This document is subject to change without notice 1620 Hawkins Ave Sanford NC 27330 919 566 8000 10951 West Los Angeles Ave Moorpark 93021 805 553 5000 Trademarks and disclaimers MegaTherm and the Pentair Commercial Pool and Spa logo are trademarks of Pentair Water Pool and Spa Inc Other trade marks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Pentair Water Pool and Spa Inc disclaims proprietary interest in marks and names of others P N 472643 Rev A 05 22 06 Litho in U S A
4. Unit Front View Base Rail 20 GA Galvanized Sheet Metal Roofing Base for Combustible Floors Cap Rod Material a Flashing 4X4 Stringer Figure 4 Typical Boiler Installation on Roof Using 4x4 Stringer Base must extend out min 12 305mm on all sides of heater frame 20 ga min galvanized sheet metal under entire heater 4 Concrete blocks or tile min 7 178mm high with 3 76mm min air openings Blocks must provide solid base and be braced so they cannot slip out of place Air openings in blocks must be arranged to provide unobstructed opening through entire width or length of base Figure 5 Installation on Concrete Blocks or Tile b Forced Air Ventilation In the United States any equipment which exhausts air from the boiler room can deplete the combustion air supply or reverse the natural draft action of the venting system This could cause flue products to accumulate in the boiler room Additional air must be supplied to compensate for such exhaust The information in Table 2 is not applicable in installations where exhaust fans or blowers of any type are used Such installations must be designed by qualified engineers In Canada follow Canadian standard CSA B149 1 or local codes If a blower or fan is used to supply air to the boiler room the installer should make sure it does not create drafts which could cause nuisance shutdowns of the pilot If a blowe
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6. more Repeat as necessary If the inlet temperature rises above 100 F open outlet valve slightly until the inlet temperature stabilizes as close to 100 F as possible plus or minus 2 F If the inlet temperature is MORE THAN 100 F If outlet valve has been throttled partially closed open it slightly wait 5 minutes and if the temperature is not down to 100 F plus or minus 2 F open it some more If bypass valve is fully open and you are still seeing inlet water temperatures in excess of 100 F you can adjust bypass valve A Throttle it turn down slightly towards closed and wait until the inlet water temperature stabilizes again Repeat as necessary When the inlet temperature is stabilized at 100 F either lock the valve handles remove them or prominently mark them to prevent tampering or accidental changes to the valve positions If the pool water temperature needs to be raised more than 10 F to reach a comfortable swimming temperature inspect and re adjust the valves twice a day to maintain the 100 F inlet water temperature 3 To prevent nuisance high limit tripping set the adjustable pump time delay relay to 10 minutes for all models This allows the boiler pump to circulate water through the heat exchanger after the burners shut off recovering all residual heat in the metal components 4 The boiler outlet temperature with the bypass adjusted as detailed above should be le
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8. Electronic Ignition Controls a Intermittent Ignition Pilots are automatically lit when the operating control calls for heat Systems 4 and 9 The unit performs its own safety check and opens the main valves only after the pilot is proven to be lit Whenever the pilot flame is interrupted the main gas valve closes within 0 8 seconds b Electronically Supervised Standing Pilot System System 16 When pilot flame fails the ignition control module responds in less than 0 8 seconds and provides 100 safety shutdown 2 Operating Controls An electronic temperature control is provided on model MT boilers to control the pool water temperature The temperature sensor thermistor is located in the filter circulation piping see Section 2 8 3 Boiler Power On Off Auto Switch This provides for constant or automatic pump operation 4 High Limit Controls The manual reset high limit switch is provided as standard equipment on all boilers The temperature sensing bulb of the switch is always located in the heater outlet Burners will automatically shut down whenever overheating of water occurs 5 Flow Switch Standard on all model MT pool heating boilers The switch is mounted in a tee fitting on the outlet header This is a paddle type switch which is deflected by the water flow in the fitting Any condition which interrupts or decreases the flow through the secondary loop will shut down the burners 6 Low Water
9. These pumps are sized for the pressure drop through the heat exchanger and through the bypass piping as shown in Figure 10 Any deviations from the arrangement shown may increase the head on the pump reduce flow and hinder performance see Section 2 7 For spas see Section 3 9 This piping arrangement and the integral pump allow hot water to be recirculated to the heater inlet thus raising the inlet temperature and greatly reducing condensation 1 4 Certifications All models are design certified by CSA for natural or propane gas and conform to ASME Code requirement for 160 PSI water pressure 1 5 Engineering Assistance Consult the factory or distributor regarding any questions or problems which arise in the specification installation or operation of this equipment An experienced engineering staff is ready to assist in assuring the proper performance and application of this products 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MODEL SIZE I INDOOR IGNITION VERSION REVISION MT POOL BTU HR X 1000 E OUTDOOR 04 SPARK 110V 1 8 TUBE P PUMP U S 0500 09 SPARK 24V B 10 TUBE Q PUMP CAN 0600 11 SPARK 24V on 16 STND PILOT 0850 FUEL 5 HEAT EXCHANGER 0999 N NATURAL C GLASS LINED COPPER 1010 P PROPANE N GLASS LINES CU NI 1200 FIRING MODE K BRONZE COPPER 1430 ON OFF S BRONZE CU NI 1670 1825
10. inch NPT piping models must be installed in the primary secondary arrangement shown The boiler loop piping must tee into the filter loop piping with the inlet and outlet connection spaced a maximum of 18 450mm apart see Figure 10 To insure that pool inlet water does not exceed 104 F the filter pump loop must circulate at the minimum flow rates shown in Table 4 The outlet valve and the bypass valve must have a provision for locking the handles in place or removing them after the temperature rise and inlet temperature adjustments have been made Boiler Model Minimum Filter Pump Flow Rate 500 850 90 GPM 1010 1200 110 GPM 1430 140 GPM 1670 1825 180 GPM Table 4 Minimum Flow to Supply Heater Loop 10 Pentair Water Commercial Pool and Spa Valve May Be Required to Divert Flow to Heater FROM THE POOL FILTER CONTROLLER SENSOR E2103600 AP HEATER 500 1825 TO POOL Figure 10 Heater Piping Arrangement 2 8 Temperature Sensor Placement and Installation A temperature sensor with 15 feet 5m of cable and an immersion well assembly are supplied with the boiler These must be installed in the field Refer to Figures 10 through 11 1 The immersion well body is provided with a 1 2 NPT Mount the immersion well on the underside of the filter circulation piping just upstream of the boiler inlet tee as close to the boiler a
11. that very warm or hot water often with air injection is forced at high velocity into a confined area of a swimming pool or into a small separate pool For the purposes of this manual any application in which the water temperature is maintained above 85 F 30 C is considered a spa SPECIAL SET UP AND OPERATING PROCEDURES APPLY TO SPAS 1 Models 10101 and 1010E and larger should not be used for spas due to their higher temperature rises 2 Since outlet temperatures can approach 140 F 60 C units must be piped in a primary secondary style similar to that shown in Figure 10 3 To insure that the spa inlet water does not exceed 104 F 40 C the spa filter pump must circulate at the minimum flow rates shown in Table 5 Boiler Model Minimum Filter Pump Flow Rate 500 220 GPM 600 270 GPM 715 320 GPM 850 380 GPM Table 5 Minimum Filter Pump Flow Rates For Spas Note Maximum Spa Temperature Is Assumed To Be 100 F 38 C 4 The high limit stop should be changed to 140 F 60 C The set point should then be checked following the procedure in 3 3 5 Use the outlet valve A to set the inlet temperature per section 3 4 6 Spas are excellent for relaxation body conditioning and for arthritic and rheumatic problems but can be hazardous The Consumer Product Safety Commission has recommended the following Safety Rules for Hot Tubs a 5 or hot tub water temperature should never exceed 104 F
12. tubs locating mirror under the burners An alternate method is to remove the venting and top panels as necessary to inspect the heat exchanger from above Also check the vent system for defects at this time If cleaning is required shut off all electrical and gas supply to the heater To expose the heat exchanger Indoor Models Remove the flue pipe top of unit rear upper jacket flue collector rear panel and heat exchanger baffles Outdoor Models Remove vent top assembly rear upper jacket flue collector rear panel and heat exchanger baffles To remove all burners It is usually more convenient to remove the burner tray assembly Disconnect sensor wire ignition cable or thermocouple generator and pilot gas line Disconnect manifold inlet union s Remove the four 4 retaining screws Grasp the manifold pipe and slide out the burner tray 16 Pentair Water Commercial Pool and Spa Black carbon or green soot on dirty heat exchanger can under certain conditions be ignited by a random spark or open flame To prevent this unlikely occurrence dampen the soot deposits with wet brush or fine water spray before servicing or cleaning the heat exchanger 9 Clean heat exchanger using a wire brush to remove soot and loose scale from the unit Clean fallen debris from bottom of heater Make sure burner ports are clear and pilot assembly is free of debris 10 Reassemble in r
13. used to shut off the boiler at least 15 minutes before the filter pump is shut off Wire the switch or relay often called the Fireman Switch to the terminals shown in the wiring diagram as Field Interlock 4 All field installed electrical safety devices and all field installed controllers valve end switches draft switches relays timers can be connected to the boiler control to the terminals shown in the wiring diagram designated Field Interlock 5 Field location of the temperature sensor is described in Section 2 8 Where the boiler is installed with a draft fan refer to the fan manufacturer s wiring diagram The draft switch should be wired across the field interlock terminals in the boiler control panel 2 6 General Piping Instructions In addition to the bypass valve and outlet valve A shown in Figure 10 an inlet valve C should be provided so that the heater can be readily isolated for service valves should be butterfly or ball style not gate valves For spas application see Section 3 9 Since heater outlet temperatures can reach 150 F 66 C in some cases copper or CPVC are recommended materials for heater connection piping PVC material may be used for the inlet valve and the piping upstream of it When pipe fittings grids or any other element of the filter system are made of plastic materials they may be damaged by the momentary back siphoning of hot water from the heater when the f
14. year Keep heater area clear and free from combustible material gasoline and other flammable vapors and liquids see Table 1 for minimum clearances Be certain all combustion air and ventilation openings in the room are unobstructed Check for fouling on the external surfaces of the heat exchanger every six months NOTE after installation and first start up check the heat exchanger for fouling after the following periods of operation 24 hours 7 days 30 days 90 days and once every six months thereafter Fouling on the external surfaces of the heat exchanger is caused by incomplete combustion and is a sign of combustion air and or venting problems As soon as any fouling is observed the cause of the fouling should be corrected see Section 5 Troubleshooting Guide The heat exchanger can be checked with a flashlight by Pilot Relay Manual Reset Switch Standing Pilot Systems Figure 15 Pilot Safety Relay should check the water temperature with an accurate thermometer spa or hot tub thermostats may err in regulating water temperatures by as much as four degrees 7 Fahrenheit 2 2 C Persons with 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 Persons taking medications which induce 8 drowsiness such as tranquilizers antihistamines or anticoagulants should not use spas or hot
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19. 1 proper vent cap on stack 2 adequate height of stack above spillage of flue products into room roof 3 equipment exhausting air from inside of building and 4 proper installation of draft diverter D Gas pressure to burners is excessive D Check gas pressure with manometer and adjust with heater firing at full rate Heater not fitted for the fuel supplied E See nameplate for correct fuel F Heater installed at high altitude F Installations at altitudes in excess of 2000 ft above sea level are subject to without proper derating jurisdiction of the local inspection authorities Check orifice size contact your dealer or factory for proper size m 5 Symptom water dripping in firebox A Tubein heat exchanger has A Tube failure is almost always caused by scale formation in the tube or overheated and ruptured inadequate water flow through the heater B Heater is condensing from low B Check bypass valve adjustment inlet temperature Pentair Water Commercial Pool and Spa Page 18 Parts Description and Order Numbers SECTION 6 6097SS01 60017401 60607401 00019901 6091901 60407501 00076501 00916401 60 07 01 60626501 00707501 10707501 00966501 0787501 0 8 501 60087501 018 901 008 901 0647901 60919901 60129901 6098901 00866501 0046901 00807 01 6029901 8281 9215 80979901 8001501 80607901 c 00019901 80916901 80907904 00078901 0091
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22. 40 C A temperature of 100 F 38 C is considered safe for a healthy adult Special caution is suggested for young children b 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 c 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 d Before entering the spa or hot tub users Commercial Pool Heating Boiler Pilot Valve Main Gas Valve Pilot Valve OFF POSITION 3 15 SECTION 4 Maintenance in Lubricate the pump seal every 6 months with oz of SAE 30 non detergent oil Slowly add to pump oil cup located on top of the bearing bracket At start up and every six 6 months thereafter the pilot and main burner flame should be observed for proper performance see Figure 16 See attached lighting and shut down instructions for proper pilot flame pattern If flame has the appearance of sooting tips check for debris near orifices and call the Pentair Water commercial Pool and Spa technical support see page 2 Inspect the venting system for obstruction leakage and corrosion at least once each
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27. 9 8 1670 418 2696 9 1825 457 2948 6 Net Free Area Check with louver manufacturers for net free area of louvers Correct for screen resistance to the net free area if a screen is installed Check all local codes applicable to combustion air Area indicated is for one of two openings one at floor level and one at the ceiling so the total net free area could be double the figures indicated For special conditions refer to the latest editon of ANSI 2223 1 Consult factory if openings do not communicate directly through the walls with the outdoors Table 2 Minimum Recommended Air Supply to Boiler Window Or Grill rl Indoor Room Figure 7 Incorrect Outdoor Installation 2 4 Gas Supply and Piping Review the following instructions before proceeding with the installation 1 Verify that the boiler is fitted for the proper type of gas by checking the rating plate MegaTherm boilers are normally equipped to operate below a 2000 foot 609 6m altitude Boilers equipped to operate at higher altitudes have appropriate stickers or tags attached also printed information on rating plate 2 Use the figures in Table 3 to provide adequate gas piping from the gas meter to the boiler 3 sediment trap drip leg must be provided ahead of the gas controls see Figure 8 A manual gas shutoff valve must also be provided for service convenience and safety Check the local codes 8 Pentair
28. Cut Off optional The low water cut off automatically shuts off boiler whenever water level in the heat exchanger drops below probe level It is located in the inlet header 3 2 Initial Start Up AAWARNING Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the heater the possible damage to a flooded appliance can be extensive and present numerous safety hazards Any appliance that has been under water must be replaced Rating Plate Water Circulating Pump Manual Pilot Valve Manual Main Gas Valve Safety Gas Valve Operating Safety Gas Valve Ignition Control Flow Switch Pressure Relief Valve Power On Off Auto Switch Pump Time Delay Relay Terminal Strip Operating Control Figure 13 Controls Location 12 Pentair Water Commercial Pool and Spa On a newly constructed pool be sure to run the filter pump long enough for a complete turn over of the pool water before starting heater so that dirt and residue from construction will have been removed The filter may clog rapidly during this period causing severe cycling of the heater 1 Before placing the heater in operation be certain that the heater is filled with water and that all air is purged from the system Open all the valves in the secondary piping 2 With the filter pump running run th
29. Installation and Operation Instructions for MegaTherm Pool Heating Boiler lt Model MT Sizes 500 1825 IMPORTANT Store these instructions in the pocket provided on the heater FOR YOUR SAFETY This product must be installed and serviced by a professional service technician qualified in hot water boiler installation and a maintenance Improper installation and or operation could create carbon monoxide gas in flue gases which could cause serious injury property Y 2 2 damage or death Improper installation and or operation will void the warranty P N 472643 Rev A 05 22 06 A WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS 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 nearby phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or gas supplier IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS AVERTISSEMENT Assurez vous de bien suivres les instructions
30. Water Commercial Pool and Spa Distance from Gas Meter Boiler or Last Stage Regulator Size 0 100 100 200 200 300 0 30 5 30 5 61m 61 91 4m 500 1 2 2 600 1 2 27 715 2 2 27 850 2 27 27 1010 2 27 3 1200 2 3 3 1430 2 3 3 1670 27 3 3 1825 2 3 NOTE These figures for Natural Gas 65 Sp and based on 1 2 water column pressure drop Check supply pressure with a manometer and local code requirements for variations For Propane Gas reduce pipe diamter one size An average number of tees and elbows have been taken into account Table 3 Gas Piping Sizes 4 The boiler and its individual shutoff 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 5kPa The boiler must be isolated from the gas supply piping system by closing its individual manual gas shutoff valve during any pressure testing of the piping system at test pressures equal to or less than 1 2 psig 3 5kPa 5 Provide gas supply pressure to the heater as follows Natural Gas Propane Gas In W C kPa In W C kPa Max 10 2 5 14 3 4 Min 6 5 1 6 11 2 7 NOTE the heater and all other gas appliances sharing the boiler gas supply line must be firing at maximum capacity to properly measure the inlet supply pressure Low gas pressure could be an indication of a
31. aintenance personnel who work on or around the heater may be standing on wet floors and could be electrocuted by an ungrounded boiler Wiring diagrams are included in the information packet provided with each unit 1 All Model MT pool heating boilers need 115V 60Hz supply voltage unless specifically ordered otherwise 2 1825 models are supplied with 3 4 HP pump motors All other models are supplied with 1 2 HP pump motors Consult the National Electrical Code or the Canadian Electrical Code regarding branch circuit requirements for equipment with these motors 3 boilers should be wired exactly as shown in the wiring diagram Commercial Pool Heating Boiler Page 9 Pressure Relief Valve Water Flow Switch Outlet Fitting of Boiler Figure 9 Pressure Relief Valve Location IMPORTANT NOTE The pool filter pump and boiler must be electrically interlocked so the boiler cannot come on unless the pump is running and there is full flow in the filter piping where the boiler is connected If the pool filter pump operation is intermittent the boiler must be shut off prior to pump shutdown See paragraph heading Auxiliary Time Clock Wiring below If the backwash operation is manual the boiler must be shut off manually during backwashing Auxiliary Time Clock Wiring If a time clock is used to control the filter pump operation a separate switch or relay must be
32. are the same for the rear tiles Check 0 5 dimensions of old as shown here to 72000102 7 72023602 L T2023602 T2005802 confirm part number Front 13 19 19 19 8 T 12 19 19 19 T 0 L 0 0 0 1670 3 Assembly 420051708 3 2 2000102 E T2023602 L T2023602 T2023602 72006202 2 13 19 19 19 14 75 T 12 19 19 19 15 75 T um m 0 0 2 1825 2 Assembly 20051709 5 2 T2000102 cS 2023602 2023602 2023602 T2006302 2 Figure 18 Tile Assemblies N A cmm 2 PN WES Vw Pentair Water Commercial Pool and Spa Page 26 60200102 60709007 60469901 09 9901 0949901 00204002 60989901 60669901 00229901 60109901 00209901 60489901 60149901 60189901 60409901 1 204 9901 1 60749901 2 60102002 60702901 60010002 60110002 60689901 00606901 8281 9215 80 00102 80 05002 80269904 20575901 1099901 00205002 80989901 80669901 2 00448901 60909901 80109901 00209901 80289904 8019901 80189901 80209901 82 80229901 80102002 80702901 8001000 80110002 80699901 60620901 00606901
33. ation conforms with the National Fuel Gas Code ANSI Z223 1 and or CSA B149 1 Installation Codes When resizing any portion of the common venting system the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Appendix G in the National Fuel Gas Code ANSI Z223 1 and or CSA B149 1 Installation Codes 2 2 3 Instructions Relatives au Test des Systemes Event Commun Au moment du restrait d une chaudi re existante les mesures suivantes doivent tre prises pour chaque appareil toujours reccord au syst me d vacuation fonctionnet pas 1 Sceller toutes les ouvertures non utilis es du syst mes d vacuation 2 Inspecter de facon visuelle le syst me d vacuation pour d terminer la grosseur et l inclinaison horizontale qui conviennent et s assurer que le syst me est exempt d obstruction d tranglement de fuite de corrosion et autres d faillances qui pourraient pr senter des risques 3 Dans la mesure du possible fermer toutes les portes et les fen tres du b timent et toutes les portes entre l espace o les appareils toujours raccord s au syst me d vacuation sont install s et les autres espaces du b timent Mettre en marche les s cheuses tous les appareils non raccord s au syst me d vacuation common et tous les ventilateurs d extraction comme les hottes de cuisini re et les ventilateurs des salles de bain S assurer que ces ventilate
34. d for five minutes the flame failure response time should be checked as follows Systems 4 and 9 intermittent ignition With this system pilots are automatically lit when the operating controls call for heat If the pilot flame fails for any reason the main valve is shut off within one second and the pilot spark ignition is initiated until the pilot flame has been reestablished This sequence should be checked by turning off the manual pilot gas valve see Figure 14 and at the same time monitoring the audible sparking at the pilot burner and signal interruption to the main valve ACaution Propane gas is heavier than air and sinks to the ground Exercise extreme care in lighting the heater when so equipped System 16 electronically supervised standing pilot system Extinguish the pilot flame by placing the manual pilot valve in the closed positions see Figure 14 and at the same time begin recording the time it takes for the output signal from the electronic ignition control to be interrupted The signal interruption can be detected either with a test light or a voltmeter The response time should never exceed one second 2 Hi Limit Checkout For spas see Section 3 9 The manual reset high limit is factory preset to 150 F 66 C Confirm this set point on the unit and adjust if necessary After running the heater in a firing mode for 10 minutes slowly close the outlet valve A to raise the outlet
35. donn es dans cette notice pour r duire au minimum le risque d incendie ou d explosion ou pour viter tout dommage mat riel toute blessure ou la mort Ne pas entreposer ni utiliser d essence ni d autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de tout autre appareil QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareils Ne touchez aucun interrupteur Ne pas vous servir des t l phones dansle b timent o vous vous trouvez Appelez imm diatement votre fournisseur de gaz depuis un voisin Suivez les instructions du fournisseur Si vous ne pouvez rejoindre le fournisseur de gaz appelez le sservice des incendies L installation et l entretien doivent tre assur s par un installateur ou un service d entretien qualifi ou par le fournisseur de gaz Pentair Water Commercial Pool and Spa 2 Pentair Water Commercial Pool and Spa TABLE OF CONTENTS SECTION 1 SECTION 3 General Information Operation 1 1 216 U ro 3 3 1 Controls 11 1 2 Heater Identification 3 3 2 Initial Start Up sise 11 1 3 Primary Secondary Pump and Piping 3 3 3 Safety Shutoff Component Checkout 12 1 4 Certifications scien urine 3 3 4 Inlet Temperature and 1 5 Engineering Assis
36. e The pool heating boiler must be installed in accordance with the procedures The warranty does not apply to heaters not installed or operated in accordance with these procedures Consult local building and safety codes before proceeding with work The installation must conform to the requirements of the authority having jurisdiction or in the absence of such requirements to the latest edition of the National Fuel Gas Code ANSI Z223 1 National Electrical Code ANSI NFPA 70 In Canada the installation must conform with the latest edition of CSA B149 1 requirements When required by the authority having jurisdiction the installation must conform to American Society of Mechanical Engineers safety codes for controls and safety devices for automatically fired heaters No CSD 1 and in Canada CGA 3 3 Any modification of the heater its gas controls gas orifices wiring or drafter diverter may void the warranty If field conditions require such modifications consult factory 1 2 Heater Identification Consult rating plate on the heating boiler Shown below is a breakdown of the model nomenclature Commercial pool heating boilers are available in two configurations an indoor version and an outdoor version Outdoor models are not available in Canada 1 3 Primary Secondary Pump and Piping All models are supplied with integrally mounted pumps The 1825 models use a 3 4 HP pump and all other models are supplied with 1 2 HP pumps
37. e heater pump in manual CONSTANT PUMP for minimum of 10 minutes and listen for the flow switch to make as the pump is started Loosen the pipe plug on the top of the pump scroll casting to bleed off any air NOTE If the system will be operated in a manner that causes air to be drawn into the heater and the secondary piping an automatic float type air vent should be permanently installed on top of the pump scroll 3 To check the heater firing proceed as follows a Turn off the power switch b Turn off all manual gas valves and wait five minutes Figure 13 c Setoperating control to the lowest setting d After placing the manual pilot gas valve in the open position and resetting all safety devices high limit low water cutoff etc the pilot s can be lit following the procedure on the heater rating plate e For standing pilot system press on pilot relay knob see Figure 15 light pilot and keep relay knob depressed for one minute then release Once the pilot is lit turn power switch to AUTO PUMP f Wait 5 minutes and turn up operating control until heater fires for intermittent ignition system the pilot will be ignited automatically The main burners should ignite smoothly Turn the operating control back to the lowest setting NOTE DO NOT OPERATE HEATER UNTIL THE FOLLOWING SAFETY CHECKS HAVE BEEN PERFORMED 3 3 Safety Shutoff Component Checkout 1 Once the pilot s is lit and has been establishe
38. e the clearances as listed in Table 1 Minimum Boiler Clearances 2 Do not place the boiler in an enclosure or wall recess Avoid locations where wind deflection off structures might cause downdraft When such wind conditions are possible place the heater at least 3 feet 0 9m from the structures 3 Never install the boiler under any kind of roof overhang Do not place the boiler below or adjacent to any doors windows louvers grills etc which connect in any way with an inhabited area of a building This includes other structures such as garages or utility rooms see Figure 7 4 Although these models are CSA designed certified for outdoor installations such installations are not recommended in areas where the danger of freezing exists unless proper precautions are taken for freeze protection Outdoor installations are not recommended in areas where the danger of snow blockage exists AAWARNING Liquefied petroleum gas is heavier than air Therefore the pool heating boiler should not be installed in pits or other locations where gas could accumulate The boiler should be located a safe distance from Propane gas storage and filling equipment Consult local codes and fire protection authorities for advice on specific installation restrictions Boiler Each Opening Size square inches Square cm 500 125 806 5 600 150 967 8 715 179 1154 9 850 213 1374 3 1010 253 1632 4 1200 300 1935 6 1430 358 230
39. ea See Table 2 for recommended air supply for each model An Table 1 Minimum boiler clearances from adjacent surfaces Concrete Slab Must Extend Out A Minimum Of 12 On All Sides Unit End View Unit Base Base For Combustible Floors Concrete Slab 4 Minimum Concrete or Wood amp Steel Construction Add Base for Combustible Floors on Indoor Units Base Comes Standard on Outdoor Units Figure 2 Typical Boiler Installation on Concrete Slab Mounting Platform Must Extend Out A Minimum Of 12 On All Sides Unit 20 GA End View Galvanized Sheet Metal Unit Cap Ll Base Base For Combustible Floors Flashing Roof M Raised Mounting on Platform Wood Add Base for Combustible Floors on Indoor Units Base Comes Standard on Outdoor Units Figure 3 Typical Boiler Installation on Roof Using Raised Platform wood improperly ventilated equipment room can get excessively hot and cause accelerated deterioration of controls and electrical components In Canada Table 2 does not apply Consult local building codes or in the absence of such requirements follow CSA B149 1 standard Commercial Pool Heating Boiler Page 5
40. ecoming chilled and also permit the pool to be raised to swimming temperature in a shorter time A pool may be maintained at a lower temperature than 70 F 21 C with some increased likelihood of condensation and damage to the unit Models 500 through 1010 will maintain an inlet temperature of 85 F 29 C to 90 F 32 C if the bypass is properly adjusted with a pool temperature of 60 F 16 C Models 1200 and 1430 can maintain the above with a pool temperature of 65 F 18 C For models 1670 14 Pentair Water Commercial Pool and Spa and 1825 pool temperature should be maintained at 70 F 21 C or above See item 3 in the next section 7 An adjustable pump time delay relay is mounted in the control panel see Figure 11 This relay keeps the pump running after the burners shut off The delay should be set to 5 6 minutes for models 500 850 and 9 10 minutes for models 1010 1825 3 7 Winter Operation Complete Shutdown 1 To shut down the heater for periods of several months or more turn manual main gas valve and pilot gas valve to OFF Where danger of freezing does not exist some water should flow through the heater during the normal filter cycle all year long even when the heater is turned off or shut down completely if all bypass valves are opened 2 the heater is not protected from freezing temperatures it should be completely drained before the first frost Drain the heater by removing the drai
41. everse order and be sure the heat exchanger baffles are replaced 11 The gas and electric controls installed on the heater are engineered for both dependable operation and long life but the proper functioning of these components is necessary for safe operation of the heater It is strongly recommended that the basic items be checked by a competent serviceman every year and replaced when necessary The basic controls are a Water temperature controls b Pilot safety system c Automatic electric gas valve s Flow switch 12 Low water cutoffs should be inspected every six 6 months when provided NOTE The warranty does not cover any damage caused by lack of required maintenance or improper operating practices 13 Pool Water Chemistry The mineral content of the pool water increases every day This is due to the natural evaporation which removes only distilled water and leaves the minerals behind The regular addition of algicidal and sanitizing chemicals also adds greatly to the mineral content of the pool If the concentration of minerals in the pool is permitted to become too high the minerals will precipitate out of the water and deposit onto the walls of the pool in the filter and in the tubes of the heat exchanger For this reason it is very advantageous to drain the pool regularly at least every two years This precautionary measure will save the cost of expensive repairs to the finish filter system and heater An
42. g above the highest point of the building with an approved vent cap The venting system should be installed according to the latest edition of ANSI Z223 1 and or in Canada CSA B149 1 and any local codes having jurisdiction Do not weld or fasten the vent pipe to the boiler drafthood The weight of the stack must not rest on the boiler The drafthood and boiler top must be easily removable for normal boiler service and inspection IMPORTANT NOTE Do not use sheet metal screws at the snap lock joints of Type B gas vents Avoid using long horizontal runs of the vent pipe and too many 90 elbows reductions or restrictions Horizontal runs should have at least a 1 4 6mm rise per foot in the direction of flow A vent connector should be supported for the design and weight of the material used to maintain clearances and prevent physical damage and separation of joints Avoid terminating boiler vents near air conditioning or air supply fans The fans can pick up exhausted flue products from the boiler and return them inside the building creating a possible health hazard A minimum of 4 feet 1 2m in Canada 6 feet 1 8m horizontal distance must be maintained from electrical meters gas meters and relief equipment 6 Pentair Water Commercial Pool and Spa Always use double wall or insulated vent pipe Type B or equivalent In cold weather uninsulated outside vents can chill the rising flue products blocking the natural d
43. ilter pump stops running The pressure relief valve installed in the tapped opening provided in the outlet header see Figure 9 must be piped but not connected to a drain or floor sink The drain pipe must be the same size as the valve outlet and must pitch downward from the valve Where no special setting of the relief valve is ordered the factory will furnish a 75 psi setting The pressure relief valve lever must be tripped at least once a year to insure that waterways are clean When manually operating lever water will discharge through the drain line Precautions must be taken to avoid contact with hot water and water damage 2 7 Boiler By Pass Piping MT series boilers 500 1825 models must be installed with bypass piping Please use Figure 10 as your guide to plumb the bypass For spas see Section 3 9 diverter valve in the main line shown in dashed line in Figure 11 is optional and may be needed only if the distance to the heater is over 15 Call the Service Department at 800 900 9276 extension 5406 for assistance models are supplied with integral pumps These pumps are sized for the pressure drop through the heat exchanger 30 feet of piping and through the bypass piping as shown in Figure 10 Any deviations from the arrangement shown may reduce flow hinder performance and will void the warranty 2 inch NPT piping is shown however models 5001 1430I and models 500E 1010E may be installed using 2
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45. n undersized gas meter and or obstructed gas supply line Gas Supply Inlet To Equipment Inlet Tee lt Fitting Nipple 3 76mm Min aT Figure 8 Sediment Trap Installation 6 correct burner manifold gas pressure is stamped on the rating plate The regulator is preset at the factory and normally requires no further adjustment The gas manifold and control assembly is factory tested and conforms to the safe lighting and other performance criteria specified in the latest editions of ANSI Z21 13 CSA4 9 Low Pressure Boiler Standard Before operating the boiler the complete gas supply system and all connections must be tested for leaks using a soap solution Do not use raw flame ACaution Since some leak test solutions including soap and water may cause corrosion or stress cracking the piping must be rinsed with water after testing unless it has been determined that the leak test solution is noncorrosive 2 5 Electrical Wiring AAWARNING The boiler must be electrically grounded in accordance with the most recent edition of the National Electrical Code ANSI NFPA 70 In Canada all electrical wiring to the boiler should be in accordance with the latest edition of CSA C22 1 Canadian Electrical Code Part 1 Do not rely on the gas or water piping to ground the metal parts of the boiler Plastic pipe or dielectric unions often isolate the boiler electrically Service and m
46. n plug on the bottom of the front header casting Leave the plug out until ready to use the heater again Heater must be level to permit adequate draining When compressed air is used to blow out lines it is still necessary to follow the above procedure Keeping the pool heated and the filter pump running continuously will not be adequate protection If there is a pump failure or an electrical power failure the boiler cannot fire and may freeze and be damaged 3 Improper Use of Heater The heating boiler is not designed for continuous use as an anti freezing device for pools Operating the heater with low water temperatures will cause the fins on the heat exchanger to be partially blocked with condensation Incomplete combustion and prolonged operation under these conditions will result in the heat exchanger sooting up This can seriously damage the heater and may create a dangerous fire hazard 3 8 Time Clock Operation During the warm up period the heater must run continuously so it can raise the pool temperature from cold to above 70 F 21 C Remove all time clock stops and permit the heater to raise pool temperature to 70 F 21 C or above in one continuous operation When the time clock stops are replaced be sure to allow the filter pump and the heater to stay on long enough to keep the pool up to the desired temperature 3 9 Therapeutic Pools Spas Therapeutic pools or spa pools are usually piped and controlled so
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48. nused openings in the common venting system 2 Visually inspect the venting system for proper size and horizontal pitch Determine that there is no blockage or restriction leakage corrosion or other deficiencies which could cause an unsafe condition 3 Insofar as it is practical close all building doors and windows Also close all doors between the space in which the appliances remaining connected to the common venting system are located and the other spaces of the building Turn on any clothes dryer and any appliance not connected to the common venting system Turn on any exhaust fans including range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan Close all fireplace dampers 4 Place in operation the appliance being inspected Follow the lighting instructions for the unit Adjust the thermostat so the appliance will operate continuously 5 Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle or smoke from a cigarette cigar or pipe 6 After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous condition of use 7 Any improper operation of the common venting system should be corrected so the install
49. orth Carolina 8 A M to 5 Phone 800 831 7133 Fax 919 566 8920 Moorpark California 8 A M to 5 P M Phone 800 831 7133 Fax 800 284 4151 Web sites visit www pentairpool com and www staritepool com Commercial Pool Heating Boiler Page 3 SECTION 1 General Information 1 1 Introduction This manual provides information for the installation and operation of MegaTherm model MT pool heating boilers It is strongly recommended that all application and installation procedures be reviewed completely before proceeding with the installation Consult Pentair Commercial Pool and Spa or your local sales representative with any problems or questions regarding this equipment Experience has shown that most problems are caused by improper installation not system design Some accessory items are shipped in separate packages Verify receipt of all packages listed on the packing slip Inspect everything for possible damage upon delivery and inform the carrier of any shortages or impairments Any such claims should be filed with the carrier The carrier not the shipper is responsible for shortages and damage to the shipment whether visible or concealed AAWARNING The MegaTherm model MT commercial pool heating boiler must be used on potable water only For heating pools containing salt water a specially equipped heater must be used consult your distributor or factory representativ
50. other important safety precaution always keep the pH of the pool water between 7 3 and Figure 16 Main Burner Flame Pattern 7 7 This will add years to the life of the pool finish filter system and heater Most algicidal and sanitizing chemicals contain sodium hypochlorite while others contain calcium hypochlorite Sodium is not a scaling chemical but calcium is When using calcium hypochlorite it is especially important to frequently check the pH of the pool and to change the pool water when the dissolved solids indicate an excessive mineral content SECTION 5 Troubleshooting For proper service and problem diagnosis of the heater and heater system the following tools are required a Gas pressure test kit with range from zero to 14 W C Either a slack tube manometer or an accurate gas pressure gauge is acceptable with proper adapters to connect to the available fittings in the line and on the gas valve b Multi meter with the following ranges 0 to 500 volts A C 0 to 1000 ohms continuity 0 to 50 millivolts c Tube cleaning kit consisting of reamer stainless steel brush speed handle and handle extensions d A pool thermometer with a proper range A pressure gauge with proper range Commercial Pool Heating Boiler Page 17 SECTION 6 PARTS 1 Symptom heater is pounding knocking or emitting steam from relief valve Possible Cause What to Do A Low or no water flo
51. r is necessary to provide adequate combustion air to the boiler a suitable switch or interlock must be wired into the heater control circuit to prevent the heater from firing unless the blower is operating The boiler must be completely isolated and protected from any source of corrosive chemical fumes such as trichlorethylene perchloroethylene chlorine etc Water Heater CLOSET INSTALLATION UNACCEPTABLE ROOM INSTALLATION ACCEPTABLE A closet is any 4 sided enclosure room is any enclosure which is at which is less than 16 times the total least 16 times greater than the total volume of allthe gas fired appliances volume ofall the gas fired appliances within the enclosure within the enclosure ALCOVEINSTALLATION ACCEPTABLE An alcove suitable for the installation Water ofawaterheateris a restricted section of a room not separated from the room by a door or partition and which meets the minimum clearances for the specific model water heater listed below Heater When the ceiling height exceeds 8 feet you are only allowed to consider 8 feet when calculating the total volume of the enclosure Figure 6 Alcove Installation 2 2 2 Venting The MegaTherm boiler has a built in draft diverter for natural draft operation and must not be connected to any portion of a mechanical draft system under positive pressure The flue outlet must be connected to a clear unobstructed vent of adequate capacity endin
52. raft action of the venting systems This can create a health hazard by spilling flue products in the boiler room Avoid oversized vent piping or extremely long runs of pipe which may cause excessive cooling and condensation Rule of Thumb the total length of the vent including the connector and any offset should not exceed 15 feet 4 6m for every inch 25mm of vent diameter Longer total lengths shown in venting tables are based on maximum capacity not condensation factors When the installation of a draft fan is necessary in connecting a venting system to a MegaTherm boiler the installation should be engineered by competent personnel following good engineering practices The draft fan supplier should be consulted for correct size The installation should be in accordance with the latest edition of ANSI Z223 1 and or in Canada CSA B149 1 and any local codes having jurisdiction When a draft fan is installed a suitable draft switch must be wired into the boiler control circuit at terminal designated Field Interlock to prevent firing of the boiler unless a positive draft has been established 2 2 3 Common Venting System Test Procedure At the time of the removal of an existing heater the following steps shall be followed with each appliance remaining connected to the common venting system During the testing of each unit the other appliances remaining connected to the common venting system should not be operated 1 Seal any u
53. re is present at meter call for public utility service If gas is present in heater inlet check pressures in following sequence 1 downstream from pressure regulator 2 downstream from electric gas valve Replace or adjust as necessary F Electric gas valve operator is F Disconnect wiring harness at gas valve terminals Check continuity of actuator burned out or shorted coil If open circuit or short is indicated replace coil or operator G Pump does not run G Operate in manual Check power to pump from relay Check that pump motor is free to rotate Replace relay or motor as necessary H Pump runs but flow switch H Check continuity across flow switch Inspect paddle for proper movement not closing Adjust flow range setting Field interlock open Jumper terminals and isolate problem in other equipment 3 Symptom pressure relief valve leaking intermittently or steadily A Faulty relief valve A Replace with a new relief valve with proper setting see rating plate 4 Symptom soot in flueways or in tubes or noxious fumes from bad combustion A Combustion air supply to heater A Check air supply opening Look for debris in screen or louvre which covers room is inadequate combustion air opening or for objects blocking the opening B Stack or vent is blocked or restrictive B Look for blocked stack and excessive number of elbows in stack or excessive length of horizontal runs C Severe downdraft is causing C Check for
54. s possible see Figure 10 DO NOT INSTALL in boiler loop piping or downstream of the boiler inlet tee 2 Thread the spring and retainer onto the sensor cable and secure sensor into the immersion well 3 Route cable to heater control panel in a location where it will not be subject to damage Secure with nylon cable ties 2 9 Automatic Chlorinators A concentration of chlorine in the heater can be very destructive therefore the following rules about the installation and operation of such devices must be followed 1 The chlorinator should be installed so it introduces the gas or solution downstream from the boiler 2 chlorinator should be wired so it cannot operate unless the filter pump is running 3 chlorinator should be provided with an anti siphon device so that the draining of the piping after the pump shuts off will not siphon chlorine solution into the boiler 4 When the operation of a chlorinator is such that it must be installed in the pump suction or some other place where the chlorine solution flows through the heater corrosion of the heater can occur Excessive concentrations of chlorine caused by improper adjustment or failure of the chlorination equipment cause this corrosion The resulting damage to the heat exchanger is not covered by heater warranty Commercial Pool Heating Boiler Page 11 SECTION 3 Operation 31 Controls General see Figures 12 and 13 1
55. ss than 142 F The normal range will be 10 to 37 F higher than the inlet temperature If it exceeds 142 F please contact the Service Department at 800 900 9276 extension 5406 for instructions Outlet temperatures in excess of 142 F may cause intermittent high limit tripping POOL OPERATING CONTROL ADJUSTMENT 5 Adjustable Differential Feature Remove the cover from the control box and verify that the white differential potentiometer is set at about 2 F 1 C NOTE a 2 F differential means that if the thermostat is set at 80 F the heater will come on at 78 F and go off when the pool reaches 80 F The 2 F value is a good starting point for most installations This differential may be adjusted up or down to suit individual applications 6 The operating control temperature setting can be Page 13 Manual Reset Flow Low Water High Limit Switch Cutoff Optional Figure 14 Safety Componenis Spark ignition Standing pilot Figure 15 Pilot Burners adjusted incrementally to obtain the desired pool operating temperature 3 5 Heater Shut Down 1 Ifheater is firing turn operating control to lowest value wait 10 minutes for pump to stop running then turn power switch to off 2 If heater is not firing turn power switch to off 3 6 Spring and Fall Operation Stand by Service Turn the thermostat down to approximately 70 F 21 C This will prevent the pool and surrounding ground from b
56. sy 01 sqn uoJ 1520 9 Jeddo9 10699901 eqn1 0L ve uoddns 20220901 1022090 aiqusnquiog UON ZE 0020290 100pnO 18109 1 008 ON ezis uonduoseg 27 Commercial Pool Heating Boiler SOEOLOCV 002010 0010102 00S0L0cV 00109002 60665901 60464901 60685901 60169901 281 9215 vOEOLOCV 0020L02v OOLOLOCY 00SOLOcV 00109002 80664901 80969901 80689901 80169901 0291 9215 vOEOLOcV 00c0L02V OOLOLOCY 00S0L0cV 00109002 2069901 20969901 20689901 20169901 9215 vOEOLOcV 0020 OOLOLOCY 00SOLOcV 00109002 90664901 909689901 90689901 90169901 001 9215 060102 0020 OOLOLOCY 00S0L0cV 00109002 480664901 40464901 90689901 90169901 0101 9215 7060102 0020 0010102 00 lt 010 00109002 70665901 70464901 70685901 70166901 098 9215 vOEOLOcV 0 OOLOLOCY 00S0L0cV 00109002 2026990 60464901 0689901 0169901 9215 vOEOLOcV 0020 OOLOLOCY 00S0L0cv 00109002 20664901 20464901 20684901 20169901 009 9215 vOEOLOcV 0020 OOLOLOCY 00S0L0cV 00109002 0669901 09689901 10684901 0169901 006 9215 Sg p 0501 0501
57. tance 3 Temperature Rise Adjustment 12 3 5 Heater Shut Down 13 SECTION 2 3 6 Spring and Fall Operation Installation Standby SEMI 13 24 Boiler Placement 4 3 7 Winter Operation Complete Shutdown 14 2 2 Installation of Indoor Boilers 4 3 8 Time Clock Operation 14 2 2 1 Combustion Air 4 3 9 Therapeutic Pools 14 gt 5 2 29 3 Common Venting System SECTION 4 Test PRISE oce dns 6 15 2 2 3 Instructions Relatives au Test des Syst mes Event Commun 6 SECTION 5 2 3 Installation of Outdoor Boilers 7 54 Gas 5 and 7 Troubleshooting 16 2 5 Electrical Wiring 8 2 6 General Piping Instructions 9 SECTION 6 27 Boiler By Pass 9 Parts Description and Order Numbers 17 2 8 Temperature Sensor Placement and Installation 10 2 9 Automatic Chlorinators 10 Pentair Technical Support Sanford N
58. temperature as indicated on the outlet thermometer The high limit should trip within 2 F 1 C or 3 F 2 C of the 150 F 66 C setpoint and shut off the burners If this does not occur adjust the set point on the unit to shut off the burners when the outlet thermometer reads 150 F 66 C Open the outlet valve A and push the reset button The main burners should reignite 3 Flow Switch See attached vendor literature 4 Low Water Cutoff optional See attached vendor literature 3 4 Inlet Temperature and Temperature Rise Adjustment For proper operation the bypass and outlet valves must be adjusted to obtain the correct heater temperature rise Use the following method to set the bypass assembly at start up 1 With all bypass valves open fire the heater for at least 10 minutes The operating control should be set at least 5 to 10 F above the pool temperature to ensure continued operation throughout this set up procedure 2 Observe the thermometer on the inlet header To prevent condensation and damage to the boiler the inlet water temperature has to be 100 F Commercial Pool Heating Boiler If the inlet temperature is LESS THAN 100 F With the bypass valve A fully open throttle turn down outlet valve B slightly Observe the inlet thermometer for 5 minutes to see where the inlet temperature stabilizes If it remains under 100 F throttle outlet valve little
59. tion complies with the American Insurance Code Figures 2 3 4 5 show common installation on combustible flooring 2 2 Installation of Indoor Boilers Locate the pool heating boiler to provide adequate clearance for inspection and service on all sides See Table 1 For alcove installation see Figure 6 Install indoor heaters on a waterproof floor with an adequate floor drain and a 6 152mm minimum curb on all four sides to protect the building if heater repairs are required The manufacturer will not be held liable for any water damage in connection with this boiler 2 2 1 Combustion Air Supply The heater location must provide sufficient air supply for proper combustion and ventilation of the surrounding area as outlined in the latest edition of ANSI standard Z223 1 and any local codes that may be applicable Inadequate combustion air supply may result in incomplete combustion sooting of the heat exchanger and unsafe operation of the boiler a Conventional Ventilation In the United States the most common of these requirements specify that boiler rooms should be provided with two permanent air supply openings communicating directly through the wall to outside air one within 12 inches 305mm of the ceiling and the other within 12 inches 305mm of the floor Each opening should have a minimun free area of one square inch 6 5 sq cm per 4 000 BTU hr input of the total input rating of all appliances in the enclosed ar
60. urs fonctionnent la vitesse maximale Ne pas faire fonctionner les ventilateurs d t Fermer les registres des chemin es 4 Mettre l appareil inspect en marche Suivre les instructions d allumage R gler le thermostat de facon que l appareil fonctionne de facon continue 5 Faire fonctionner le br leur principal pendant 5 min ensuite d terminer si le coupe tirage d borde louverture de d charge Utiliser la Commercial Pool Heating Boiler Page 7 flamme d une chandelle ou la fum e d une cigarette d une cigare ou d une pipe 6 Une fois qu il a t d termin selon la m thode indiqu e ci dessus que chaque appareil raccord au syst me d vacuation est mis l air libre de fa on ad quate Remettre les portes et les fen tres les ventilateurs les registres de chemin es et les appareils au gaz leur position originale 7 Tout mauvais fonctionnement du syst me d vacuation commun devrait tre corrig de fa on que l installation soit conforme au National Fuel Gas Code ANSI Z223 1 et ou aux codes d installation CSA B149 1 Si la grosseur d une section du syst me d vacuation doit tre modifi e le syst me devrait tre modifi pour respecter les valeurs minimales des tableaux pertinents de l appendice G du National Fuel Gas Code ANSI Z2231 1 et ou des codes d installation CSA B149 1 2 3 Installation of Outdoor Boilers 1 Locate the boiler to provid
61. w A Is the heater wired into the filter pump circuit so that the heater cannot fire most likely unless the pump is running Check to see that all valves in system are open to be sure that water can circulate through the heater Check pool filter clean if clogged Examine heater pump for clogged or frozen impeller Check flow switch for proper operation and range setting B Debris from system piping B Remove header covers Examine all tubes and waterways Clean out tubes is blocking tubes Use new gaskets when reassembling C Scale has formed in tubes C Clean tubes with tube cleaning kit Determine hardness Check water flow and from high mineral content clean pool filter 2 Symptom heater will not fire A Heater not getting power A Check to see that power switch is ON Use testing device to trace power to heater power source Check fuse and secondary voltage in heater control B Operating or safety control has B Turn off power Check continuity across terminals of each operating and safety opened circuit to electric gas valve control switch up to the electric gas valve Replace defective control C Pilot flame is out Relight pilot per instruction D Manual reset device has tripped D Reset pilot safety and all manual reset safety switches Follow instructions for start up E No gas pressure to burners E Trace gas line to service shutoff cock If service cock is open trace gas line to meter If no pressu
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