Multi-position (upflow, downflow, horizontal left, horizontal right) without modifications * 0 Modifiable for side-entry return air . Low-flow, high-head pump custom designed to work with Rinnai's tankless water heaters . Integrated control board with learning algorithm . No combustion air infiltration losses when used with a Rinnai tankless water heater . Four selectable heat blower off delay times . Multi-speed motors (ECM) . Strong 20-gauge steel cabinet 0 Galvanized, painted 0 Fully insulate

2 Safety Information .......... 2 Operating Instructions .... 8 Care and Maintenance ... 9 Installation Instructions ... 10 Parts List ........................ 21 Consumer Support ......... 26 French Version ............... 28 INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference. — 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

1of 1 Rinnai America Corporation103 International DrivePeachtree City, GA 302691- 800- 621- 9419 Drawn By JG Tolerance Fraction =±1/ 16" x.x= ± 0.030x.xx= ± 0.015x. xxx= ±0.005 This is not an engineering drawing; it is intended only as a guide and notas a replacement for professional engineering project drawings. Thisdrawing is not intended to describe a complete system. It is up to thecontractor or engineer to determine the necessary components andconfiguration of the particular system to be in

10" / 250mm Installation & Servicing Instructions Rinnai E-Series 13 connection diameters table 2 boiler connections / mounting points figure 2 f w g k r c Connection for combustion air supply and vent system f w g k r c Boiler type E75CN E110CN E75CP E110CP Vent system / Combustion air supply 80/125mm 80/125mm Gas pipe - g 3/4"M-NPT 3/4"M-NPT Supply pipe - f 0.87" x 3/4"M-NPT / 22mm G3/4"x 3/4"M-NPT Return pipe - r 0.87" x 3/4"M-NPT / 22mm G3/4"x 3/4"M-NPT Condensate pipe - c 0.87" / 22mm 0.87"

Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent system, air system, and combustion air quality. Inspect finished vent and air piping thoroughly to ensure all are airtight and comply with the instructions provided and with all requirements of applicable codes. Failure to provide a properly installed vent and air system may cause severe personal injury or death. Use only the material listed in Rinnai's vent documentation for vent pipe, and

WARM AIR OUTLET HUMIDIFIER OPEN THE DOOR AND POUR WATER INTO THE TRAY. FILTER LAMP VENT TERMINAL COMBUSTION/ EXHAUST COMBUSTION AIR INTAKE HOSE EXHAUST PIPE AIR FILTER THERMISTOR GAS CONNECTION 1/2" NPT POWER CORD PLUG 120V AC Rinnai Corporation ES38 Manual Control Panel All buttons beep when operated. Set Temp Room Temp Economy Temp Control Function Lock Filter ON/OFF ON FUNCTION LOCK Lamp is "green" when this feature is on. FILTER LAMP Flashes when filter is dirty. OPERATION LAMP This lamp tur

2 Consumer Safety Information ....... 3 Specifications ................................ 4 Operating Instructions ................... 6 Installation Instructions ............... 15 Adjust Gas Pressure Settings ..... 28 Consumer Support ...................... 44 French Version ............................ 46 WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoli

This is simply expansion noise from the heat exchanger. During Combustion: Clicking noise when the thermostat operates. This is the sound of the solenoid gas valves opening and closing. Unit is not heating room. Is the air filter blocked? Is the set temperature high enough? Is the warm air outlet blocked by anything? Are the doors and windows of the room closed? Was the appliance correctly sized for the space? Air filter is blocked or the louvers are blocked or obstructed. Heater will not re-ign

E Series Boiler ............ DHW Piping Thermostatic Valve ..................... 3 EPA-09-0001 ............ E SeriesBoiler ........... Single Zone ...................................................... 4 QPD-09-0001 ........... Q175C Boiler .............. DHW Recirculation .......................................... 5 QPD-09-0002 ........... Q Series Boiler ........... DHW from Indirect Tank .................................. 6 QPD-09-0003 ........... Q Series Boiler ........... Single Zone Prior

Thisdrawing is not intended to describe a complete system. It is up to thecontractor or engineer to determine the necessary components andconfiguration of the particular system to be installed. The drawing doesnot imply compliance with local building code requirements. It is theresponsibility of the engineer or contractor to ensure that the installation isin accordance with all local building codes. Confer with local buildingofficials before installation. 3 BC 53H 4 N/ O 4 N/ C 6N/ O N N/ C 6 12