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i200X - i250X Operation Manual.indb
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1. 5 Passthe cable through the grommet located at the bottom of the cabinet 6 Secure the cable using a zip tie 2 Dip Switch 3 Dip Switch 3 ON OFF 7 Replace the front covers Set Up Unit Number 1 Reconnect the power and wait for the home screen to appear 2 Press and release the Mode button until the dC screen appears The designated number for the unit will be displayed The default is OFF 3 Now press the Up Down arrows to select the desired number for the particular water heater Change the selection from OFF to one of the ten possible selections 01 O2 03 though 05 The up down arrows scroll from OFF to 1 through 05 and then to OFF 4 Oncethe desired number is selected press and hold the Enter button for three seconds to save this setting and return to the main display screen 5 Repeat the above steps and set each unit to a different number For example the next unit would be 02 the third unit would be 03 and so on 26 8 1 2 Common Exhaust Mode Changing this setting can only be done when the Flame ON icon is not displayed This m
2. aawaoJssnva IMJ pe p102 Troubleshooting 19 6 3 Operational Diagram No Yes Energize Ignition Module No Error Handler Error Handler 7 Yes row No Rapid Start Module Yes Successful Ignition Yes Yes Rapid Start Timer On Set Modulation No Is Program Yes Time On No Maintain Temperature Module De energize Ignition Module 156 Troubleshooting 20 7 Serviceable Parts 7 1 Electrical Components ITEM NO PART NUMBER DESCRIPTION 1 IGT SPROOO4 DISPLAY 2 IGT SPROOO2 CONTROLLER 3 IGT SPROOO5 IGNITER MODULE 21 Serviceable Parts 7 2 Blower Gas Valve and Exhaust ITEM NO PART NUMBER DESCRIPTION 1 IGT SPROOT17 i200X 1250X FLUE PIPE ASSEMBLY PP 2 IGT SPROO16 i200X i250X GAS INLET ASSEMBLY 3 IGT SPROO08 BLOWER KIT 4 5 0 1 GAS VALVE KIT Serviceable Parts 22 7 3 Water Lines and Fittings ITEM NO PART NUMBER DESCRIPTION 1 GT SPRO036 SMALL TEE 2 GT SPROO18 WATER INLET FITTING 3 4 NPT 3 5 0 024 HEAT EXCHANGER INLET TUBE 4 GT SPROO23 BY PASS TUBE 5 GT SPROOO3 FLOW SENSOR KIT
3. 25 9 27 10 Product Warranty 29 Operation 1 General Information 1 1 Items Shipped With Water Heater The following items are shipped with the water heater upper mounting bracket 1 condensate drain 2 Operation manual 3 and Installation manual 4 Note Items 6 through 9 are spare parts shipped with the unit Two 10A bus fuses 5 electrode seal 6 O rings 015 7 and 30psi relief valve 8 007 250 Condensate drain line 2 is shipped from the factory with a loop held together with plastic ties Do not remove the ties and or straighten the loop This loop forms an air block trap which prevents carbon monoxide from exiting the water heater through the drain line Improper installation of the drain line can result in excessive levels of carbon monoxide which can lead to severe personal injury or death 1 1 1 Optional Items An optional outdoor sensor can be purchased separately connected to this unit part number 5 0074 General Information 1 2 Contact Information Call us first if you have any questions about this product We can help you with questions about installation or operation or if there are damaged or missing parts when you unpack this unit from the shipping box Stamp or write your dealer contact inform
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5. 6 5 0025 HEAT INLET BOTTOM TUBE 7 GT SPROO26 HEAT EXTANGER OUTLET TOP TUBE BUFFER 8 GT SPROO28 TANK TO DRAIN PORT TUBE 9 GT SPROO27 HEAT EXCHANGER OUTLET BOTTOM TUBE 10 GT SPROO29 DRAIN PORT 11 GT SPROO31 TEE BY PASS LINE 2 12 5 0032 PUMP TEE TO WATER OUT TUBE ASSEMBLY 13 GT SPROO33 PLATE HEAT EXCHANGER OUT TUBE 14 GT SPROO34 TEE BY PASS LINE 1 15 GT SPRO037 OUTLET PORT 3 4 NPT 16 GT SPROO39 2 PORT SOLENOID VALVE 17 GT SPROO40 PLATE HEAT EXCHANGER 18 5 0041 ADAPTER 1 2 X 20 FEMALE 19 GT SPROO07 PUMP KIT 20 GT SPROO30 BUFFER TANK OUT TO WATER PUMP IN TUBE 21 GT SPROO62 CLIP ON SENSOR Note 1 Temperature outlet sensor is to be located just above SMC 16 on outlet line 12 above bypass line 2 Recirculation sensor is centrally located on the heat exchanger inlet bottom tube 6 23 Serviceable Parts 7 4 Ignition Components ES 5 lt gt ae ITEM NO PART NUMBER DESCRIPTION 1 5 0006 ELECTRODE KIT 2 IGT SPROO05 IGNITER MODULE Serviceable Parts 24 8 Multiple Units 8 1 Modes of Operation The Modes of Operation screens provide set up screens and additional information on the water heater There are five Mode of Operation screens which are used by the technician during installation or maintenance of the water heater 8 1 1 Daisy Chain Mode 1 Press and release the Mode but
6. paid based on the following Repair or replacement of any parts 75 hour up to maximum of 150 Replacement of entire unit 75 hour up to maximum of 225 i200X i250X amp i201X i251X Warranty 27 Shipping Costs If a replacement part is supplied under the terms of this warranty Intellihot will provide ground service delivery for the part free of charge Any expedited shipping expense will be paid by the customer Definition of Potable Water Potable water is defined as drinkable water supplied from utility or well water in compliance with EPA secondary maximum contaminant levels 40 CFR part 143 3 as shown in the table Intellihot will warrant the heat exchanger coil for hardness up to 15 Grains per gallon 257ppm as Calcium carbonate Copper Corrosivity Fluoride Foaming Agents T Manganese Odor Silver Total dissolved solids TDS Not Covered by this Warranty This warranty does not cover failures or problems due to e Failure to install in accordance applicable building codes ordinances normal plumbing and electrical trade practices e Improper installation improper use improper maintenance improperly made replacements or repairs accidents or abuse Sediment deposits fire flood lightning freezing and acts of God or any causes other than defects in materials and workmanship This warranty will be void and have no effect if The unit is modified or altered in any w
7. potable water Do not use toxic chemicals such as used for boiler treatment in potable water in potable water heating systems Suitable for water potable heating and space heating the water heater MUST NOT be connected to any heating system or components previously used with a non potable water heating appliance If the system requires water for space heating at temperatures higher than required for other uses a mixing valve must be installed to temper the water for those other uses in order to reduce scald and hazard potential Water heaters used for combination water space heating CANNOT be used in space heating applications only Safety Section 3 Operation 3 1 Control Panel 3 2 Display Icons A LCD screen The LCD display screen shows all information about the operating functions of the water heater B Arrow keys Press the UP or DOWN arrows to adjust the value of the selected feature such as time or water temperature C Enter button To return to the Main or Home screen D Power button When the water heater is initially connected to an electrical power supply the unit will automatically turn ON and the display panel should light up To turn the unit OFF press and hold the Power button and the water heater will go through a shutdown process The unit can then be turned ON again once the blower finishes its purge cycle 10 seconds by pressing the Power button E Time button Press this button
8. shown on the display 11 The water control valve is set to ON for temperature priority and OFF for maximum flow Press the Up Down arrows to select either ON or OFF Press and hold the Enter button for three seconds to save the settings and return to the home screen Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen Programming 4 2 2 Performance History The Performance History mode allows the technician to view ignition cycles number of ON times and cumulative water flow The displayed results are for all the water heater modules combined within the unit Press the Mode button multiple times until the PH screen appears The Flow On Hours FH Firing Counts FC and Cumulative Flow CF will now begin to display for 1 5 seconds each The display will continue to cycle for 30 seconds and then return to the home screen Some examples are shown below Diagnostic Code FH Flow on hours shows one hour of flame To obtain the total hours multiply the number by 10 Diagnostic Code FC Firing Count shows a flame count of 40 000 To obt ain the total number multiply the number by 1 000 Diagnostic Code CF Cumulative Flow shows 38 000 gallons of water To obtain the usage in gallons multiply the number by 1 000 Press and hold the Enter button for three seconds to return to the home screen Note If the Enter button is not pre
9. strainer cover plug 15 5 2 Draining the Water Heater Hot water can cause burns to the skin The water temperature is factory set to 120 F 49 C To avoid burns make sure the water heater is OFF and the power supply is disconnected The water heater will remain hot for some time Wait until the unit has completely cooled before draining the water heater or performing any other maintenance 1 Press the Power button to turn OFF the water heater Disconnect the power 2 Close the water supply inlet and outlet valves Turn OFF the gas supply 122 ud 10 046 3 Position a bucket or other container against the drain port 4 Use an Allen wrench and remove drain plug 1 10 111 5 When all the water has drained from the water heater replace the drain plug Maintenance Section 5 3 Filling the Water Heater 1 Open the water outlet supply valve Slowly open the water inlet supply valve Open the hot water faucet that is located farthest away from the water heater Once a steady stream of water flows and all the air is purged from the system close the hot water faucet Connect the unit to the power supply Open a hot water faucet The water heater should operate normally Maintenance Section 16 6 Troubleshooting 6 1 Error Code Chart Blower Sp
10. to 140 F in one degree increments was 4 Ud 3 7 Setting Space Heating Temperature Press and hold the Orange button On the right hand side of the display the current temperature setting of the supply water is shown To change the supply water temperature push the Up Down arrow key while continuing to hold the orange button The setting range for the supply water is from 100 F to 170 F However the minimum space heating set temperature is 20 F below the domestic hot water set temperature 3 8 RealTime Parameter Display Press and release the Orange button The left hand side of the display scrolls through the following parameters in succession After scrolling through the parameters three times the display returns to the main screen Flow Rate The flow rate is indicated with FIO and actual flow rate 3 5 GPM Actual Outside Air Temperature if connected toft and the actual outside air temperature such as 65 F If is shown this parameter is unavailable or sensor is not connected Domestic Outlet Water Temperature tout and the actual domestic hot water DHW outlet temperature such as 120 F Heat Exchanger Temperature tHE and the actual temperature of the heat exchanger such as 120 F Operation Recirculation Temperature trEC and the actual temperature of recirculation such as 110 F Flue Temperature FLUE and the actual temperature of flue such as TIO F 3 9 Error Sc
11. to set the hours and minutes on the clock F Mode button Press this button to access various Modes of Operation G Orange button Used to view real time flow and temperature readings H Displays the current time in AM or PM CODE Display Displays the CODE icon and the most recent digital error code K Error Icon Indicates an error has been detected and a trouble code may be shown next to the CODE icon L Indicates water flow open faucet M Indicates blower is ON N Indicates burner is ON O Gas Consumption Icon Indicates the level of energy usage There are four bar indicators and each represent 25 of gas usage P Indicates outlet water temperature S Freeze Indicator Icon This icon indicates that the unit has detected potential freezing conditions and will operate to keep the internal component water temperature above the freezing limits T Thermostat Icon Indicates the unit has received a signal from the thermostat calling for heat Operation 3 3 Turning Water Heater ON and OFF 1 When plugging in the unit will show the four digit software version To turn the water heater ON press the Power button The screen will show INIT until initialized and the home screen will automatically display when the unit is ready to use 2 To turn the water heater OFF press and hold the Power button for three seconds and the display screen will show OFF 3 4 Resetting Clear Error Codes 1 To r
12. I VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareil Ne touchez aucun interrupteur ne pas vous servir des t l phones se trouvant dans le b timent Appelez imm diatement votre fournisseur de gaz depuis un voisin Suivez les instructions du fournisseur Si vous ne pouvez rejoindre le fournisseur appelez le service 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 S XS S X amp N 53 N To avoid product damage personal injury or even possible death carefully read understand and follow all the instructions in the Installation and Operation manuals before installing this product Improper installation adjustment alteration or maintenance can cause injury loss of life and or property damage This water heater should be installed and serviced by a qualified technician The lack of proper service can result in a dangerous condition This manual contains safety information installation instructions and maintenance procedures It must be left with the homeowner or placed near the water heater in a noncombustible place The customer should retain this manual for future reference Table of Contents 1 General Information 1 1 Items Shipped With Water Heater 4 12 4 13 Serial Number Pl
13. ate Locati0nS 4 2 Safety 2 1 Safety Signal 5 22 Installation 5 5 3 Operation 31 Control Panel 7 3 2 Display Icons 7 3 3 Turning Water Heater ON and OFF 8 3 4 Resetting Clear Error Codes 8 3 5 Setting the Time 8 3 6 Setting the Domestic Water Temperature 8 37 Setting Space Heating Temperature 9 3 8 Real Time Parameter 9 3 9 5 eret obe DORIA 10 4 Programming 41 Modes 11 42 Viewing and Setting Modes of Operation 11 5 Maintenance 5 1 Cleaning the Inlet Water Strainer 15 52 Draining the Water 15 5 3 Filling the Water Heater 16 6 Troubleshooting 6 1 Error Code 17 62 Wiring Diagram 19 63 Operational 20 7 Serviceable Parts 7 1 Electrical Components 21 7 2 Blower Gas Valve and Exhaust 22 73 Water Lines and 23 74 Ignition 24 8 Multiple Units 81 Modes
14. ation here for future reference Due to our policy of continuous product improvement and technology the design and or technical specifications are subject to change without notice Serial Number Date of Installation 1 3 Serial Number Plate Locations Each unit s heat exchanger module has its own ASME certification plate 1 Rating plate 2 contains serial number for the unit Please provide this serial number when calling for service or warranty 2 Safety 2 1 Safety Signal Words Indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word is limited to the most extreme situations Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Indicates that equipment or property damage can result if instructions are not followed SAFETY INSTRUCTIONS Safety instructions or equivalent signs indicate specific safety related instructions or procedures Note Contains additional information important to a procedure 2 2 Installation Warnings DO NOT use this water heater for any purpose other than water heating Read understand and follow the Installation and Operation manuals including all warnings and precautions before o
15. ay Appliance s or equipment attached to the unit that have not been approved by Intellihot Green Technologies If the unit is used exclusively as a booster heater for commercial dishwasher or if the water from a reverse osmosis or deionized process is run directly through the unit The serial number is altered defaced or discarded Warranty Limitations This warranty applies only when the unit is used in the United States or Canada Except for the limited warranties provided above Intellihot Green Technologies disclaims any and all other warranties including but not limited to warranties or merchantability and fitness for a particular purpose provided however that implied warranties or merchantability and fitness for a particular purpose are not disclaimed during the one year period from the effective date Intellihot shall not be liable for indirect special incidental consequential or other similar damages including lost profits arising from or relating to the unit This warranty gives you specific legal rights and you may also have other rights which vary from state to state How to Make a Claim Please call 877 835 1705 Proof of purchase in the form of a dated sales receipt and warranty registration is required in order to obtain warranty service and should be included with your claim The product owner should submit the warranty claim directly to Intellihot at the following address Intellihot Green Te
16. chnologies Inc Attn Warranty Claims 2900 W Main Street Galesburg IL 61401 All parts claimed to be defective may be requested to be returned to Intellihot for examination prior to full claim settlement Please include the following information on your warranty claim Model number and serial number of the unit Date of original purchase Owner s name and address A description of the problem with the part and unit 28 Warranty Make a copy or cut here to remove page 10 Product Warranty Card To activate your warranty please fill out the information in the form below and mail to the following address Warranty Registration Intellihot Green Technologies Inc 2900 W Main Street Galesburg IL 61401 Model Serial Numbers up to 4 Owner Information Name Address City State Postal Code Phone Number Dealer Information Sold By Address City State Postal Code Phone Number 29 Warranty Card c 9 E E o E v c o JU ES sS E Revised 11 2015
17. d only to potable water systems Warranty Period Residential Warranty Heat Exchanger 12 years Other Parts 3 years labor 1 year Commercial Warranty Heat Exchanger 6 years Other Parts 3 year labor 1 year Residential Domestic Hot Water DHW means potable water heating in a single family residence Commercial means all other applications Heat Exchanger Coil The warranty period for a heat exchanger coil failure when installed in a residential DHW application including recirculation is twelve 12 years from the effective start date The warranty period for a heat exchanger coil when installed in a commercial application including recirculation is six 6 years from the effective start date All other Parts and Components The warranty period for any original parts excluding the heat exchanger coil against failure is three 3 years from the effective start date A replacement part will be warranted for the unexpired term of the original warranty Defective parts submitted may not be returned No returns will be accepted without prior authorization from Intellihot Labor The applicable period of this limited labor warranty is one 1 year from the effective start date The payment and amount of any payment are subject to approval at Intellihot s sole discretion Replacement parts must be genuine Intellihot parts and warranty service must be performed by a licensed contractor The Labor allowance will be
18. eed Fault Blocked Flue Fault Ignition Failure Blower noisy impeller jammed Disconnected signal wire Wiring faulty Exhaust blocked bird etc Backed up condensate e Wiring loose switch open e Water over heat switch tripped Faulty DSI faulty igniter wire faulty ignition connection faulty PCB bad igniter Low gas pressure Faulty sensor wiring Faulty sensor HE heat exchanger water outlet temperature sensor FL Flue temperature sensor OA outdoor air temperature sensor Faulty controller e rE Recirculation temperature sensor Ou Domestic Hot water outlet temperature sensor 17 Inspect blower impeller Clean and remove any obstructions Check PWN signal Check for loose wires pins and repair Check PWN signal Check for loose wires pins and repair If the problem persists turn control panel OFF shut gas valve unplug unit and contact an authorized service technician Check exhaust termination Check exhaust connection at water heater Install screens Check slope of drain Check for double loops air locks or debris in loop Check wiring Check pump check cross over solenoid Electrical noise dsi Replace part Adjust gas pressure at regulator check upsize gas line check for gas line blockage If the problem persists turn control panel OFF shut gas valve unplug u
19. eset the water heater and clear all error codes press and release Power button 3 5 Setting the Time 1 Press and release the Time button The minute section of the time display will flash 2 Press the Up Down arrows to set the correct minute 3 Press and release the Time button again The hour section of the time display will flash Operation pa UL 4 Press the Up Down arrows to set the correct hour When setting the hour make sure you have correctly advanced the time to either the AM or PM hour setting 5 Press and release the Time button again The colon between the hours and minutes should now be flashing indicating the time has been properly set 3 6 Setting the Domestic Water Temperature Note The outlet water temperature is factory preset to 120 F DANGER Hot water temperature over 125 F 52 C can cause severe burns instantly or death from scalding Children the disabled and mc the elderly are at the highest risk of being scalded Do not leave children or the infirm unsupervised Check temperature of hot water before taking a shower or bath To control water temperature to a particular faucet temperature limiting valves can be installed by your service professional All water faucets must be closed before changing the temperature setting The unit must not be operating burner icon not on Press the Up Down arrows to set the desired temperature range from 100
20. g will be displayed The default setting for this mode is PVC Press the Up Down arrows to select the desired setting of either PUC or CPUC Note The flue temperature for PVC material must not exceed 149 F The flue temperature for CPVC or Polypropylene material must not exceed 185 F Press the Enter button to save the changes and return to the main screen Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen 4 2 8 Adjusting CO Levels Selection Refer to the Adjusting the CO Level section in this manual 5 Maintenance 5 1 Cleaning the Inlet Water Strainer All the water heaters are equipped with a sediment strainer on the inlet water connection Initially this strainer should be inspected and cleaned every three months to establish a cleaning schedule 1H 162 1 Turn off power and gas 2 Position a container under the strainer on the water inlet piping 3 Close the water inlet and outlet valve arrow and remove the cover plug Allow the water to drain from the pipe Note If a water shut off valve was not installed shut off the main water supply valve at the water heater 4 Remove the strainer screen clean it and reinstall it in the housing 162 5 Replace the
21. intell hot Operation Manual Model i200X i250X For units shipped after July 13 2015 Intellihot Direct Vent Combination Water heater This product complies with ANSI Z21 10 3 2011 CSA 4 3 Gas Water Heater For use as potable water heating and space heating y Listed Intertek Certified to NSF ANSI 372 certified 2012 SCAQMD If the information in these instructions is not followed exactly a fire or explosion could result causing property damage personal injury or death 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 neighbor s 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 the gas supplier Assurez vous de bien suivre les instructions 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 ou ni d autres vapeurs ou liquides inflammables proximit de cet appareil ou de tout autre appareil QUE FAIRE S
22. lease call the factory for service instructions Press and release the Mode button multiple times until the dE screen appears The 01 El screen is the most recent code while the 10 E3 is the last viewable screen Refer the examples below for further clarification Press and hold the Enter button for three seconds to return to the home screen Example of latest diagnostic code Fan Speed Error Code El Example of the last viewable code Blocked Flue Fault Code E3 Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen 13 4 2 5 Blower Ramp Selection When exhaust harmonics are observed i e resonance at low fire adjust the water heater using the blower ramp setting default is rat3 Increase the rate number until the resonance is no longer observed The Blower Ramp Selection has five different settings rat Press and hold the Mode button for five seconds to access the rS screen on the display The current setting will be displayed Press the Up Down arrows to select the Blower Ramp Selection from five different settings ratl rat5 Select a ramp rate at which the harmonics disappears during operation Press and hold the Enter button for three seconds to save the settings and return to the home screen Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen Program
23. ming 4 2 6 Fuel Type Verification The Fuel Type mode screen shows the selected fuel type natural gas factory preset or Propane Operation with natural gas is factory preset Refer to the Propane LPG Conversion section in this manual for additional set up information Press and hold the Mode button for five seconds to access the rS screen on the display Press and release the Mode button until the Ft screen appears on the display The current Fuel Type setting will appear nAt or PrOP to indicate the position of DIP switch 3 on the circuit boards Fuel type cannot be changed from the screen To change fuel type from factory set natural gas to propane follow the Propane Conversion procedure in this manual Press and hold the Enter button for three seconds to return to the home screen Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen Programming 4 2 7 Flue Pipe Selection PVC or CPVC Changing this setting can only be done when the Flame ON icon is not displayed When the unit is set for CPVC or polypropylene pipe flue temperatures can reach 185 F PVC pipe will lose integrity at temperatures above 149 F Make sure FP setting and the type of material being used for the flue are compatible Press and hold the Mode button until the rS screen appears Press the Mode button multiple times until the FP screen appears The current settin
24. nit and contact an authorized service technician Check for nicked or broken sensor wiring or connectors Also check for corroded or wet connectors Measure resistance of sensor at connector 18 Kohm at 50 F 10 Kohm at 77 F 3 Kohm at 140 F Replace controller Troubleshooting Temperature Sensor Open Circuit Flue Temperature Exceeded Set Limit Unplugged connectors Faulty sensor wiring Faulty sensor HE heat exchanger water outlet temperature sensor FL Flue temperature sensor Faulty Controller e rE Recirculation temperature sensor Ou Domestic Hot water outlet temperature sensor Incorrect vent set up High inlet temperature Faulty sensor wiring Faulty sensor Faulty Controller Heat Exchanger Outlet Temperature Exceeded Set Limit Flow rate changes excessive Faulty sensor wiring Faulty sensor Faulty Controller Indicates an error code and unit locked out Flashing Icon Recirculation Icon Flashing Pump inoperable Pump faulty amp excessively hot Faulty Controller Plugged up solenoid valve P models Solenoid valve faulty P models Jammed check valve Init stays on display Faulty time valve wiring Check connectors and ensure they are securely connected Check for nicked or broken sensor wiring or connectors Also check for corroded or wet connectors Measure resi
25. ode is applicable when multiple units are connected together Turning the CE mode ON allows multiple units to be vented into a common vent Refer to the Venting for Commercial Application section for information on common venting guidelines Press and hold the Mode button until the rS screen appears Press and release the Mode button multiple times until the CE screen appears The current setting will be displayed The default setting for this mode in ON Press the Up Down arrows to select either ON or OFF Press the Enter button to save the changes and return to the main display Note If the Enter button is not pressed within 30 seconds of inactivity the display will return to the home screen i200X i250X Multiple Units 9 Warranty General This unit is warranted by Intellihot Green Technologies Inc Intellihot and covers defects in materials and workmanship subject to the applicable time periods and terms below The warranty effective start date begins on the date of installation or on the date of possession in the case of new construction This warranty is extended to the original purchaser and any subsequent owner at the original install location and applies only when properly installed by a licensed contractor and operated in accordance with the instruction manuals This warranty is limited to repairs or replacement of parts at Intellihot s option that are proven to be defective under normal use and connecte
26. ore flammable liquids around the water heater including gasoline oils spray paints etc DO NOT operate this water heater unless it is properly vented to the outside the exhaust vent piping must be connected from the unit directly to the outside Improper venting can cause a build up of carbon monoxide which can result in brain damage or death Exhaust gases must be completely expelled out of the building This water heater is factory preset for NATURAL GAS but may be field converted for use with propane For propane conversion refer to the Propane LPG Conversion section of this manual Connecting the water heater to any other gas supply can result in property damage serious injury or even death This water heater is suitable for use in potable water heating applications The cold and hot water fittings on the top of the water heater MUST NOT be connected to any heating system The water heater temperature is factory set to 120 F 49 C Hot water temperatures above 125 F can cause severe burns instantly or death from scalds If the proposed water heater outlet temperature is to be set above 125 F installation of a thermostatically controlled or temperature limiting mixing valve is recommended for all hot water going to faucets to avoid the risk of scalding Examples include commercial applications where 140 F 60 C is often needed or if the space heating temperature required is higher than the domestic hot wa
27. perating this water heater If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life Follow all local codes and the most recent edition of the National Fuel Gas Code ANSI Z223 1 NFPA 54 in the USA or the Natural Gas and Propane Installation Code in Canada CSA B149 1 This water heater must be installed by a licensed plumber gas fitter and or professional service technician Installation by unqualified person s voids the warranty a A This water heater does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner manually B BEFORE OPERATING smell all around the water heater area for gas Be 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 Do not try to light any appliance Do not touch any electric 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 or police department C Use only your hand to turn the manual gas shut off valve Never use tools If manual gas shut off valve will not turn by hand don t try to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion DO NOT use or st
28. reen If an error occurs the display will indicate an error code EI E7 etc The flashing triangle will also appear in the upper left corner of the display to indicate a potential problem with the Refer to the Troubleshooting section for additional information on the resolution of error codes Operation 10 4 Programming 4 1 Modes of Operation The Modes of Operation screens provide set up screens and additional information on the water heater There are five Mode of Operation screens which are used by the technician during installation or maintenance of the water heater 4 1 1 Standard Modes Press and release the Mode button until the desired screen shows on the display FC Flow Control PH Performance History IH Setting Instant Hot Water Times dE Diagnostic Error 2 Follow the instructions in the specific section to enter the desired settings 4 1 2 Advanced Modes Press and hold the Mode button for five seconds until the rS screen appears Now press and release the Mode button multiple times until the desired screen shows on the display rS Burner Rate Ramp Setting Ft Fuel Type FP Flue Pipe Type CO Adjust CO Level 2 Follow the instructions in the specific section to enter the desired settings 4 2 Viewing and Setting Modes of Operation 4 2 1 Flow Control Selection Press the Mode button multiple times until the FC screen appears on the display The current setting will be
29. ssed within 30 seconds of inactivity the display will return to the home screen Programming 4 2 3 Setting Instant Hot Water Times This mode is used to set the times when the unit will supply instant hot water This mode can only be accessed when Flame icon is NOT showing on the display Push Mode button multiple times until IH appears on the display The current setting will show in the time area of the display as Auto 24 7 Pate Pat3 Patt or nanE The default setting is AUtO and the learned times will be displayed Press the Up Down arrows to toggle between the available six patterns Auto 24 7 Pate Pat3 Pat or none Once the desired pattern is selected press and hold the Enter button for three seconds to save the settings and return to the home screen If the Enter button is not pressed within the 30 second time limit the setting will not be saved 4 2 4 Diagnostic Code and Error Log Selection This screen provides the technician with Diagnostic Codes and Errors recorded as the water heater operates These codes are used in conjunction with the Performance History Codes Temperature Sensor Open Circuit Flue Temperature Exceeded Set Limit Heat Exchanger Outlet Temperature Exceeded Set Limit Flashing Error Code and Unit Locked Out Warning Icon Flashing Recirculation Icon E Temperature Sensor Shorted E3 E7 EC Pump Is Not Operating If Eb is displayed p
30. stance of sensor at connector 18 Kohm at 50 F 10 Kohm at 77 F 3 Kohm at 140 F Replace controller If vent pipe material is CPVC or Polypropylene ensure that CPVC is selected in the FP Flue Pipe mode Ensure inlet temperature is lower than 150 F if vent pipe material is PVC or lower than 190 F if vent pipe material is CPVC or Polypropylene Check for nicked or broken sensor wiring amp connectors Also check for corroded or wet connectors Measure resistance of sensor at connector 18 Kohm at 50 F 10 Kohm at 77 F 3 Kohm at 140 F Replace controller Ensure the water flow rate does not change faster than 2 GPM every 5 seconds Check for nicked or broken sensor wiring or connectors Also check for corroded or wet connectors Measure resistance of sensor at connector 18 Kohm at 50 F 10 Kohm at 77 F 3 Kohm at 140 F Replace controller Refer to the indicated error code E1 E2 etc for resolution Check pump wiring harness for loose connectors Replace pump Replace controller Clean lines and replace solenoid Replace solenoid valve e Remove check valve access and ensure gate is free to move Replace time valve wiring Heat Exchanger never Solenoid valve faulty Check solenoid SMC valve and replace if necessary reaches set temperature Troubleshooting 18 Diagram Chart iring 62 W VO A33 F 100140 1 19I JOSNIS
31. ter Always check the temperature of the hot water before bathing showering washing etc Protect against snow and debris accumulation around the vent terminations Regularly inspect the exhaust vent pipe and the air intake pipe to ensure they remain clear from obstructions at all times Safety Section Make sure you know the location of the gas shut off valve and how to operate it Immediately close the gas shut off valve if the water heater is subjected to fire overheating flood physical damage or any other damaging condition that might affect the operation of the unit Have the water heater checked by a qualified technician before resuming operation If the water quality is known to have high acidity and or high hardness water treatment is recommended Consult the local water authority SAFETY INSTRUCTIONS DO NOT use this appliance if any part has been under water DO NOT reverse the cold water and gas connections as this will damage the gas valve DO NOT overtighten fittings as damage may occur causing internal leakage The appliance should be located in an area where leakage within the unit or at its connections will not result in damage to the surrounding area The manufacturer will not be responsible for any damage resulting from leaking if adeguate drainage is not provided All piping and components connected to the water heater for the space heating application shall be suitable for use with
32. ton until the desired screen shows on the display dC Daisy Chain 2 Follow the instructions in the specific section to enter the desired settings 8 1 2 Common Exhaust Mode 1 Press and hold the Mode button for five seconds until the rS screen appears Now press and release the Mode button multiple times until the desired screen shows on the display CE Common Exhaust 2 Follow the instructions in the specific section to enter the desired settings 8 2 Viewing and Setting Modes of Operation 8 2 1 Daisy Chain Set DIP Switches 1 Disconnect the power from all the units in the system SHOCK HAZARD Before making any adjustments or connections inside the water heater cabinet make sure the power is disconnected Unplug the water and or turn the circuit breaker OFF i200X i250X Multiple Units 25 Remove the front covers and locate the main circuit boards on the first and last units Locate DIP Switch 3 on the first and last units and position the switch in the ON position On all the middle units position the switch in the OFF position IN 61a Using the supplied cables connect one end of a cable into either of two jack receptacles arrows located on the circuit board and the other end to the jack in the next unit
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