Confer with local buildingofficials before installation. 3 BC 120VLow voltage Q Series boilers2 boilers with DHW indirect tank123456910111213141516171819202122262DonotapplypowertN1/ tN2Com10KUnOSwComOutBoilDHW10A10AStageStage112210A10APowerNLP1BoilDHWPmp/ VlvBoilerDemandDemComDHWDemSetpDem87Boiler 2 Boiler 1 120VInput HeatingCirculator DHWCirculator DHWSensorOutdoorSensorOutdoorSensor120VInput SupplySensorOutdoorSensorNLHeat Demand FromThermostat/ zone control NL Note: See 2 boiler with DHW indi

Onthedisplayofthe RS100 a low water pressure can be indicated. For further informationseetherelevant user manual. The installation will function optimally with a water pressure of between 22 and 25 PSI. If the water pressure drops below 14.5 PSI, the display will show FILL. During this message the boiler will remain functioning at a reduced level. After replenishing the system (see following chapter) just above 22 PSI the message FILL will disappear and the boiler will function normally again. W

Use only potable water for filling. Additives only after clearance by Rinnai. Contact your installer in case of doubt. Description of the boiler Description of the boiler RS100 The Rinnai Q boiler is a room sealed, condensing and modulating central heating boiler. The Q175C has an integrated domestic hot water feature. The boiler is provided with a integrated control system. Because an outdoor sensor is connected to the boiler, the boiler works weather dependantly. This means that the boiler con

9. Turn on all electric power to the appliance. 10.If the appliance will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier. TO TURN OFF GAS TO APPLIANCE 1. Turn off all electric power to the appliance if service is to be performed. 2. Set the thermostat or other operating control to the lowest setting. 3. Close main gas shut off valve. Operating 8U.34.01.00 / 05.09 Operating instructions Rinnai Q-Series ! ! DANGER WARNING i NOTIC

Q Series Boiler ............. DHW from Indirect Tank ...................................6 QPD-09-0003 Rev B ........... Q Series Boiler ............. Single Zone Priority DHW.................................7 QPD-09-0004 Rev B ........... Q Series Boiler.............. 4 Zone Valve with DHW ...................................8 QPA-09-0001 Rev C ........... Q Series Boiler.............. 3 On-Off High Temperature Zones...................9 QPA-09-0002 Rev B............ Q Series Boiler..............

Confer with local buildingofficials before installation. 3 BC 53H 4 N/ O 4 N/ C 6N/ O N N/ C 6 120 VACINPUT TT COM WR 24VAC 53H 4 N/ O 4 N/ C 6N/ O N N/ C 6 120 VACINPUT TT COM WR 24VAC T stat 120V DHWPump ZonePump DHWPumpRelay HeatingPumpRelay* * May substitute for multizone relay 120VLow voltage Q boilerSingle Zone Circuit with Priority DHWNote: See pipingdiagram Single ZonePriority DHW AquastatForDHW 21 22 23 24 26 2725 B 1 2 3 4 6 75 8 9 10 12 1311 N L LN N L N CH DHW L 14 15 16 17 19 2018 N

Q175C Boiler ............... DHW Recirculation ...........................................5 QPD-09-0002 Rev B ........... Q Series Boiler ............. DHW from Indirect Tank ...................................6 QPD-09-0003 Rev B ........... Q Series Boiler ............. Single Zone Priority DHW.................................7 QPD-09-0004 Rev B ........... Q Series Boiler.............. 4 Zone Valve with DHW ...................................8 QPA-09-0001 Rev C ........... Q Series Boiler.....

Refer to this manual. For assistance or additional information consult a qualified installer or the gas supplier. CAUTION! The user manual is part of the documentation that is delivered to the installation's operator. Go through the information in this manual with the owner/operator and make sure that he or she is familair with all necessary operating instructions. NOTICE! Installation and service must be performed by a qualified installer, service technician or the gas supplier. In the Commonwe

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do NOT try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance 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 electrical switch. - Do NOT use any phone in your building. - Immediately call your gas su

Q175C Boiler ............... DHW Recirculation ...........................................5 QPD-09-0002 Rev B ........... Q Series Boiler ............. DHW from Indirect Tank ...................................6 QPD-09-0003 Rev B ........... Q Series Boiler ............. Single Zone Priority DHW.................................7 QPD-09-0004 Rev B ........... Q Series Boiler.............. 4 Zone Valve with DHW ...................................8 QPA-09-0001 Rev C ........... Q Series Boiler.....