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Rheem 199,000 Btu/hr User Manual Download Page 31

1-23

INSTALLATION

TANKLESS WATER HEATER 199

Tankless

Water Heater

4

Non-ferrous pump (sized for combined head loss of water heater and air 

handler)

Check valve (may be built into pump)

Potable water expansion tank

Mixing valve

Figure 24: DHW and Air Handler Piping

NOTE

Connection to space-heating 

circuit through potable water 

system as shown may be 

prohibited by local code.

1

2

3

4

Summary of Contents for 199,000 Btu/hr

Page 1: ...her 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...

Page 2: ...art P 837 1 x Condensate trap assembly 1 x Installation Operating Instructions 1 x Controller manual 1 x Propane Conversion Kit Part P 802 WARNING If the information in this manual is not followed exa...

Page 3: ...et 3 4 Male NPT Pressure Vessel water content USG Liters 0 19 0 72 Ambient Temperature Low F C 32 0 Ambient Temperature High F C 122 50 Max relative humidity non condensing 90 Min water Temperature Do...

Page 4: ...The unit shall have a pressure relief valve installed within 6 152mm of the DHW HOT outlet connection Refer to the unit s User Manual before operating the relief valve The unit requires a pressure rel...

Page 5: ...21 1 6 WATER AND SPACE HEATING APPLICATION 1 22 1 7 DOMESTIC HOT WATER SYSTEM 1 24 1 7 1 Domestic Hot Water System 1 25 1 7 2 Domestic Hot Water Piping 1 26 1 7 3 Tankless Domestic Hot Water with a S...

Page 6: ...structions 4 4 4 1 15 Cleaning the Condensate Trap 4 4 4 1 16 Reset the Maintenance Counter 4 6 5 0 TROUBLESHOOTING 5 1 5 1 PRELIMINARY CHECKS 5 1 5 2 ELECTRONIC COMPONENTS 5 2 5 2 1 Temperature Senso...

Page 7: ...s by following all requirements of the jurisdiction having authority and this installation manual Place the exhaust outlet so it reaches 12 minimum above the down turned intake to avoid flue gas conta...

Page 8: ...INSTALLATION AND OPERATION INSTRUCTIONS 8 TANKLESS WATER HEATER 199 This page is intentionally left blank...

Page 9: ...rt page 3 The units are approved as Category IV vented appliances using Direct Vent sealed combustion Figures 1a and 1b show outer case dimensions and piping Use this diagram to find a suitable locati...

Page 10: ...b Dimensions Connections for Tankless Water Heater Tankless Water Heater DESCRIPTION TANKLESS WATER HEATER TANKLESS WATER HEATER A Exhaust Outlet 2 Schedule 40 PVC B Combustion Air inlet 2 Schedule 40...

Page 11: ...itable drain pan with adequate drain must be installed under the unit Water heater fastening Approximate weight for the empty water heater is 68 lbs 31 kg For support fasteners use at least two of the...

Page 12: ...e 2 Wall mounting of unit 1 3 1 Mobile Home Installations TheTankless Water Heater is approved for installation in a manufactured home mobile home Units installed in a mobile or manufactured home must...

Page 13: ...and slide it downwards until it is correctly connected to the lower fascia panel Hand tighten screws under the unit using a 5 mm allen key do not over tighten CAUTION The front panel has a rubber sea...

Page 14: ...here is a discrepancy between the installation instructions below and the code requirements you must apply the more stringent of the two requirements Provisions for combustion and ventilation air in a...

Page 15: ...his subdivision cannot be met at the time of completion of installation the owner shall have a period of thirty 30 days to comply with the above requirements provided however that during said thirty 3...

Page 16: ...ROVIDED When the manufacturer of product approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases but identifies special venting systems the fo...

Page 17: ...t 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 After it has been determined that each appliance remaining con...

Page 18: ...the venting manufacturer to transition from the 2 vent connection to the venting system Centrotherm InnoFlue polypropylene venting requires adapter part number ISAAL0202 Wet the vent connection gaske...

Page 19: ...urrs debris which could clog the fan burner and heat exchanger General Venting Piping Requirements If the vent length requires increasing the vent pipe size to 3 the transition from the 2 vent connect...

Page 20: ...e as follows The exhaust pipe can terminate in an open vertical orientation without concern about rain infiltration rain will drain away through the condensate trap The intake air pipe is not typicall...

Page 21: ...pipes must be 36 or more apart Use the same 12 minimum vertical separation for 2 pipe option DO NOT exhaust vent into a common venting system DIRECT VENT CONCENTRIC ROOF TOP TERMINATION Roof Top Conc...

Page 22: ...maintain at least the minimum separation of exhaust vent termination from unit s intake air as illustrated in figures 9 10 and 13 and 15 Failure to do so can result in a dangerous situation where exh...

Page 23: ...nt unit see B in Figure 15 DIRECT VENT SIDE WALL TERMINATION KITS The sidewall Termination kits approved for use with the tankless water heater are subject to restrictions NOTE Some jurisdictions may...

Page 24: ...pproved vent termination manufacturer Approved Concentric Sidewall Termination kits are 3 PVC UL 1738 Ipex 397006 3 PVC ULC S636 Ipex 196006 3 CPVC ULC S636 Ipex 197009 2 Centrotherm Innoflue PPs ICWT...

Page 25: ...ondensate or vapor can cause a nuisance or hazard M Clearance under veranda porch deck or balcony 12 in 30 cm Clearance to adjacent wall 6 ft 1 83 m 6 ft 1 83 m 1 In accordance with the current CSA B1...

Page 26: ...STION AIR FROM OUTDOORS ALTERNATIVE COMBUSTION AIR CONNECTION DIRECT VENT INSTALLATION CHECK AIR INTAKE OUTSIDE TO MAKE SURE IT IS CLEAR OF OBSTRUCTIONS FLUE GAS EXHAUST TO OUTDOORS COMBUSTION AIR FRO...

Page 27: ...Use the same diameter as vent piping Insert combustion air piping directly into the 2 female plastic fitting on the top of the unit and run it horizontally or vertically to the outdoors We recommend...

Page 28: ...condition a pH neutralization tank 1 5 1 Condensate Trap The condensate trap must be installed on the bottom of the condensate trap at the base of the unit 1 5 2 Installing the Condensate Trap 1 Fill...

Page 29: ...trap drainage DANGER The water in the condensate neutralizer can cause severe burns to the skin Use extreme caution when servicing the condensate neutralizer Wear protective gloves and eyewear CAUTION...

Page 30: ...ng heating unit or components of a heating system that have previously been used with a nondrinking water system Toxic chemicals such as those used for boiler treatment may be present and will contami...

Page 31: ...d for combined head loss of water heater and air handler Check valve may be built into pump Potable water expansion tank Mixing valve Figure 24 DHW and Air Handler Piping NOTE Connection to space heat...

Page 32: ...l Gas Code ANSI Z223 1 NFPA 54 or the Natural Gas and Propane Installation Code CAN CSA B149 1 as applicable Failure to correctly install and operate this appliance can result in severe personal injur...

Page 33: ...the water heater you must consider water quality Water conditions outside of the levels specified below may damage the water heater DESCRIPTION MAX MIN Water Pressure 150 psi 40 psi Programmable wate...

Page 34: ...piping must be installed with isolation valves and flushing taps installed on both the cold and hot domestic connections Thermal expansion of the water in the domestic hot water DHW system can occur w...

Page 35: ...rage Tank The Tankless Water Heater Tankless Water Heater has the ability to connect a domestic hot water storage tank to the unit to provide larger volumes of domestic hot water during peak demands T...

Page 36: ...INSTRUCTIONS 1 28 TANKLESS WATER HEATER 199 Controller Manual for required parameter changes See the Tankless Water Heater Figure 27 Typical DHW Recirculation piping concept drawing This drawing is on...

Page 37: ...gas supply during any pressure testing greater than psi 3 5 kPa The gas valve is provided with pressure taps to measure gas pressure upstream supply pressure and downstream manifold pressure of the g...

Page 38: ...0 latest edition or The Canadian Electrical Code C22 1 Part 1 The unit when installed must be electrically bonded to ground in accordance with the requirements of the authority having jurisdiction or...

Page 39: ...hould a problem occur The unit s controller also provides frost protection When the unit s heat exchanger temperature becomes too low the burner switches on to keep the heat exchanger warm Ensure that...

Page 40: ...cator F Wrench Service Reset G Return Arrow Enter Save H Numerical Display Service Display Table 7 Controller Indicators and Touch Pad 2 3 INSTALLER INTERFACE 2 3 1 Turning Appliance ON OFF To turn on...

Page 41: ...ch the Faucet button 3 To change the DHW target temperature touch the Plus or Minus buttons 4 To save the changes touch the Return button To exit without saving the changes touch the area above the do...

Page 42: ...HW temperature ECO Comfort Mode ECO This mode operates like the Comfort Mode but has the added advantage of learning when the domestic hot water is used During the low use periods the heat exchanger i...

Page 43: ...r trial for ignition 4 Once the burner is lit and flame has been proven the unit operates as it is programmed Display for domestic hot water 5 If the unit exceeds its target temperature and there is s...

Page 44: ...conds to enter the information menu See table 9 for a list of codes and corresponding description 4 To scroll through the list of codes use the Minus or Plus button 5 To exit the information menu and...

Page 45: ...G TANKLESS WATER HEATER 199 See below for a description of the codes Table 9 Information Menu Note that display parameters may differ depending on the configuration Where there is no DHW sensor the di...

Page 46: ...eds typical residential usage When above average usage occurs within a two year period a notification code will be displayed To reset the maintenance counter and clear a maintenance notification code...

Page 47: ...HEATER 199 The code numbers are displayed in the left numerical display 4 Change C000 to C090 by touching the button 5 Touch wrench to enter the maintenance menu The current maintenance counter value...

Page 48: ...0 n120 Maintenance recommended 100 n121 Maintenance required limited DHW output 120 n122 Maintenance required no DHW output The notification code will be displayed for 30 seconds and the wrench will f...

Page 49: ...3 1 STARTUP AND COMMISSIONING TANKLESS WATER HEATER 199 3 0 STARTUP COMMISSIONING 3 1 LIGHTING SHUTTING DOWN THE UNIT LP t t ing...

Page 50: ...h Fire combustion is set by the orifice installed and is not field adjustable A low calorific value natural gas orifice See Table 10 is available for locations where the natural gas calorific value fa...

Page 51: ...orifice and venturi are installed High Fire CO2 is set by the orifice installed and is not field adjustable For areas of lower calorific value natural gas install the alternative orifice listed in Tab...

Page 52: ...ust be shut down until the cause of excessive CO readings is corrected The following procedure must be carried out by a qualified technician 1 Ensure that the gas supply is turned off at the manual ga...

Page 53: ...lug the electrical connector at the gas valve and fan 5 Loosen the lower gas valve connection nut NOTE There is an O ring in the lower gas connection Cover the gas piping connections to prevent debris...

Page 54: ...upper gas valve connection is tight Re connect the gas valve electrical connection 4 Re connect the electrical connection to the fan 5 Inspect the condensate trap for debris Remove and clean if neces...

Page 55: ...manual Blow clear using compressed air Evaluate the magnitude of cleaning required and establish a reasonable burner inspection schedule Some installations may call for annual service others showing...

Page 56: ...If the lever does not activate or there is no evidence of discharge discontinue use of equipment immediately and contact a licensed contractor or qualified service personnel If the relief valve does...

Page 57: ...5 Clean the water filter under running water Use a soft brush if necessary 6 Reinstall the water filter in the unit s cold water inlet 7 Open the DHW hot and cold isolation valves 8 Reconnect the powe...

Page 58: ...gas valve outlet and the connection between the fan and the burner housing 8 Install the cover to the unit 9 Return the unit to normal operation 4 1 15 Cleaning the Condensate Trap 1 Turn off the powe...

Page 59: ...Attach the condensate trap base to the bottom by pushing it high enough so that the securing clips click over the lip 8 2 60 mm CLICK 13 Make sure the condensate trap cup is filled with water 7 before...

Page 60: ...maintenance procedures in Section 4 0 Maintenance of this manual Failure to perform maintenance can result in a hazardous condition 4 1 16 Reset the Maintenance Counter The maintenance counter should...

Page 61: ...e correct temperature 5 4 3 Burner ignites loudly 5 4 4 Burner resonates Below each section is a list of symptoms diagnoses and solutions Some diagrams see Section 6 0 are included for use with troubl...

Page 62: ...side of Heat Exchanger S3 NTC 12K Domestic Hot Water DHW Supply Pipe S4 NTC 12K Domestic Cold Water DCW Supply Pipe S5 NTC 12K Flue Gas Temperature Top of rear Flue passage PTC1 PTC2 PTC Cabinet Tempe...

Page 63: ...ater flow through the domestic hot water circuit in the water heater The flow sensor consists of two parts the mechanical turbine in the cold water inlet and the external inductive sensor surface moun...

Page 64: ...s 4 Place a bucket under the drain and drain the DHW water from the unit 5 Disconnect and remove the bypass tube 6 Remove the retaining clip under the unit at the DHW filter 7 Disconnect the bypass va...

Page 65: ...he unit has been converted to propane if operating on propane Verify combustion readings at low and high fire are within specifications Clean fire side of heat exchanger Clean heat exchanger central h...

Page 66: ...trol module internal fault Remove all field wiring from unit then reset fault Check field wiring for voltage backfeed if F009 fault does not return Replace control module if F009 fault code returns F0...

Page 67: ...control module harness connector Green Purple 30 to 40 Green Blue 30 to 40 Green Yellow 30 to 40 Green Orange 30 to 40 Red Black 5 5 to 6 5 M Red Brown 17 to 21 M If any resistance value is outside o...

Page 68: ...temperature sensors at control module harness connector repair wire harness if short circuit is found F042 Cascade DHW not available Resolve any other lockouts in the cascade system Verify Leader casc...

Page 69: ...menu of both Leader and Follower n041 Cascade system sensor open Verify system sensor field wiring is terminated at the choosen input X13 3 4 or X13 4 5 Check resistance of system temperature sensor r...

Page 70: ...er Clean heat exchanger central heating and DHW coils n245 Flue gas back flow fan on low speed Verify vent and combustion air piping and terminations are installed according to this manual Verify oper...

Page 71: ...OLUTION Inlet pressure is too high Yes No The gas pressure regulator may be defective In that case contact the energy company Ignition distance is incorrect Yes No Replace the ignitor including the ig...

Page 72: ...INSTALLATION AND OPERATION INSTRUCTIONS 5 12 TANKLESS WATER HEATER 199 This page is intentionally left blank...

Page 73: ...081304 Replacement kit Condensate Trap Tankless Water Heater 199 P 081334 Replacement kit Controller Box White P 081384 Replacement kit Burner 160 199 P 081444 Replacement kit Flow Sensor Clip only P...

Page 74: ...INSTALLATION AND OPERATION INSTRUCTIONS 6 2 TANKLESS WATER HEATER 199 7 0 WIRING DIAGRAMS Diagram 6 2 1 Schematic wiring diagram...

Page 75: ...X15 24V X14 PC 1 2 1 2 3 4 5 X13 24V N A X9 24V X11 24V N A X10 24V N A X8 120V X5 120V Ignition unit Burner controller 1 2 3 4 5 6 Earth connections heat exchanger Power cord Eart connections burner...

Page 76: ...and completed Section 1 of Installation and Operating Instructions Check out procedures have been followed and completed Section 3 of Installation and Operating Instructions Leak testing completed ga...

Page 77: ...6 5 DIAGRAMS TANKLESS WATER HEATER 199 SERVICE RECORD DATE LICENSED CONTRACTOR DESCRIPTION OF WORK DONE...

Page 78: ...INSTALLATION AND OPERATION INSTRUCTIONS 6 6 TANKLESS WATER HEATER 199 NOTES...

Page 79: ...6 7 DIAGRAMS TANKLESS WATER HEATER 199 This page is intentionally left blank...

Page 80: ...es Co Montgomery AL 833 212 9276 IBC Technologies Inc 8015 North Fraser Way Burnaby BC Canada V5J 5M8 844 HEAT IBC 844 432 8422 IBC Technologies USA Inc 121 Walter A Gaines Way Lawnside NJ 08045 856 8...

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