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Owner's Operation and Installation Manual for the
ES38 (RHFE-1004RFA)
Gas Direct Vent Wall Furnace
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 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.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Register your product at www.rinnairegistration.com
or call 1-866-RINNAI1 (746-6241)
Energysaver
Table of Contents ........... 2
Safety Information .......... 3
Fault Codes .................... 12
Installation Instructions ... 14
Parts List ........................ 31
Consumer Support ......... 42

Summary of Contents

  • Page 1

    Owner’s Operation and Installation Manual for the ES38 (RHFE-1004RFA) Energysaver Gas Direct Vent Wall Furnace 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.

  • Page 2: Table Of Contents

    Connecting the Appliance ... 26 Operating Instructions ... 27 Cut-Away Diagram ... 28 Wiring Diagram ... 29 Ladder Diagram ... 30 Parts List ... 31-41 Consumer Support Warranty Information ... 42 Limited Warranty ... 42, 43 Rinnai Corporation ES38 Manual...

  • Page 3: Safety Definitions, Safety Behaviors And Practices

    • Do not unplug the appliance while it is operating or while the fans are on. • Do not use bare hands to touch the front louvers due to high temperatures which may cause burns. Rinnai Corporation ES38 Manual...

  • Page 4: Safety Features, Appliance Specifications

    Electrical Connection Noise Level AFUE Rating Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prior notice. The efficiency rating of this appliance is a product thermal efficiency rating determined under continuous operating conditions and was determined independently of any installed system.

  • Page 5: Appliance Specifications, Flue Manifolds

    A Vent Kit FOT-151 B Vent Kit FOT-152 C Vent Kit FOT-153 D Vent Kit FOT-154 Rinnai Corporation ES38 Manual Propane Gas 11.0 in (280 mm) W.C. 13.0 in (330 mm) W.C. Low 10,500 High 36,500 Low 8,400 High 29,200...

  • Page 6: Getting To Know Your New Heating Appliance

    OPEN THE DOOR AND POUR WATER INTO THE TRAY. GAS CONNECTION 1/2" NPT THERMISTOR POWER CORD PLUG 120V AC Operating Instructions Rinnai Corporation ES38 Manual CONTROL PANEL OPERATION/TEMPE RATURE CONTROL DISPLAY FILTER LAMP OPERATION LAMP RATING PLATE MODEL NUMBER, SERIAL NUMBER, GAS TYPE, ETC.

  • Page 7: Control Panel

    Function Lock FUNCTION LOCK Lamp is "green" when this feature is on. FILTER LAMP Flashes when filter is dirty. Rinnai Corporation ES38 Manual ON/OFF BUTTON Easy operation One touch ignition ON/OFF TEMPERATURE BUTTONS " " adjust temp. to lower setting.

  • Page 8: Operating The Heater

    4° F. The intent of this mode is to save energy. When the heater is running at the LO setting, the Economy Mode does not function. Rinnai Corporation ES38 Manual Temp Control Function Lock Economy...

  • Page 9

    Do not bend repeatedly (no more than 5 times) or else the louver will break. The horizontal louver (which determines the vertical air flow direction) is fixed and cannot be adjusted. Access Door Pull Rinnai Corporation ES38 Manual Filter louvers while warm air is flowing.

  • Page 10: Care And Maintenance

    Maintenance All maintenance and service are to be performed by a qualified service technician, preferably one who has attended Rinnai service training classes on the Direct Vent products. The appliance should be inspected annually by a qualified service technician. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc.

  • Page 11: Before Making A Service Call

    High efficiency appliances tend to discharge water vapor on cold days. This is normal. Check whether filters are blocked. Dirty filters will cause the heater to overheat. Switch OFF, then ON again when power is restored to re-set controls. Rinnai Corporation ES38 Manual...

  • Page 12: Fault Codes

    You may be able to clear the fault code by turning the heater off and then on again. If the fault code remains or returns on the next operation, contact Rinnai or your nearest service agent and arrange for a service call.

  • Page 13: Restart Function, Troubleshooting, Rinnai Corporation Es38 Manual

    Flue manifold not connected Louver obstructed Air filter blocked Gas Escape Function Lock Set Gas turned off at meter, tank, or valve. Rinnai Corporation ES38 Manual Remedy Plug In Push On/Off button to attempt restart after power is restored. Purge air (Installer)

  • Page 14: General Instructions

    • This appliance must not be connected to a chimney flue serving a separate solid-fuel burning appliance. • Rinnai suggests that a dedicated electrical circuit with a 120VAC, 60 hz, 10 amp power source be used.

  • Page 15: Gas Connection, Clearances To Combustibles

    Also refer to the Safety Behaviors and Practices section. The clearance to combustibles from the top is zero. Rinnai recommends 10” (250 mm) clearance on both sides for servicing. • After completion of gas pipe connections all joints...

  • Page 16: Flue Terminal Clearances

    Flue Terminal Clearances 24” (600mm) Rinnai Corporation ES38 Manual...

  • Page 17

    Flue Terminal Clearances Rinnai Corporation ES38 Manual...

  • Page 18: Dimensions

    Dimensions inches (mm) 36 5/8" (930) 28 7/16" (723) 13 3/4" (R350) 10 7/8" (R277) 6 5/16"(160) 14 1/16" (357.5) 11 13/16" (300) Cavity Opening Rinnai Corporation ES38 Manual 12 7/16" (316) 7 7/8" (200) 4 9/16" (116) 13" (330)

  • Page 19: Installation Parts

    Plastic tie for air inlet (M4) (M5) (M4× 20) (M4) (M4.8× 32) Wood Screws Rinnai Corporation ES38 Manual Spare rubber seal...1 (‘A’ Flue units only) (For weatherboard installations) For Back Spacer Set For Wall Brackets For Flue Lock Stopper For Flue Manifold Wall Bracket Screws Owner’s Manual...

  • Page 20: Drilling Flue Hole, Attach Wall Brackets, Attach Back Spacers

    Attach Wall Brackets Attach the wall brackets as shown. A template is provided. Attach Back Spacers Attach side back spacers to both sides of the appliance with 2 screws each. Flue Hole Wall bracket Flexible Plactic Hose (C) Rinnai Corporation ES38 Manual...

  • Page 21: Flue Manifold Installation

    • This appliance can only be used with one of the five types of Rinnai flue kits. The flue kits and their dimensions are listed on the previous page. • Refer to the Flue Terminal Clearances section.

  • Page 22

    Attach the inside connection with 3 screws. The inner connection can still be turned to install the screws. 3 screws Terminal seal Locking tie Locking ties Rinnai Corporation ES38 Manual Terminal Sleeve...

  • Page 23: Extension Kit Installation

    Vent extensions installed in unconditioned air space must be insulated with high temperature insulation and must be accessible. Vent extensions must not be concealed per NFPA 54 and must be accessible allowing inspection and repair. Decorative covers are available from Rinnai. Examples CORRECT INCORRECT •...

  • Page 24

    The hose can be cut to the required length. Deburr all rough edges. Do not cut the hose attached to the appliance. Support the air intake hose with pipe clamps. Hose joint Rinnai Corporation ES38 Manual Exhaust pipe Air intake hose Pipe stopper B Female end...

  • Page 25

    Pipe Clamp Wall Fixture Screw A Screw B O Ring Extension Kits and Parts PIPE STOPPER A PIPE STOPPER B FOT-102 FOT-103 FOT-114 2 sets 3 sets Rinnai Corporation ES38 Manual PIPE CLAMP SCREW A WALL-FIXTURE SCREW B FOT-115 4 sets...

  • Page 26: Connecting The Appliance

    Pipe stopper S Flue Adapter Flue Manifold Flue Manifold Sliding Tube Screw PIPE STOPPER S PIPE STOPPER A PIPE STOPPER E Up to /"(10mm) Rinnai Corporation ES38 Manual Plastic tie Inlet elbow Inlet hose SCREW Adjustable Leg...

  • Page 27: Operating Instructions

    Do not turn the appliance off by unplugging it from the wall. Keep burner and control compartment clean. See installation and operating instructions. Rinnai Corporation ES38 Manual ns exactly, a fire or explosion position. power to the...

  • Page 28: Cut-away Diagram

    Cut-Away Diagram Rinnai Corporation ES38 Manual...

  • Page 29: Wiring Diagram

    Wiring Diagram Rinnai Corporation ES38 Manual...

  • Page 30: Ladder Diagram

    Ladder Diagram Rinnai Corporation ES38 Manual...

  • Page 31: Parts List

    Parts List For replacement parts call Rinnai at 1-800-621-9419. Rinnai Corporation ES38 Manual...

  • Page 32

    Parts List Rinnai Corporation ES38 Manual...

  • Page 33

    Parts List Rinnai Corporation ES38 Manual...

  • Page 34

    Parts List 140 139 Rinnai Corporation ES38 Manual...

  • Page 35

    Parts List Rinnai Corporation ES38 Manual...

  • Page 36

    Parts List Rinnai Corporation ES38 Manual...

  • Page 37

    Parts List Rinnai Corporation ES38 Manual...

  • Page 38

    LOW BURNER ASS’Y C RHF250-075 DAMPER PANEL 1001F-049 BURNER BRACKET PACKING 1004F-2022 BURNER BRACKET LEFT ASS’Y 1004F-2020 BURNER BRACKET RIGHT ASS’Y 1001F-104-2 FLAME ROD RHF250-038 ELECTRODE CLIP 1001F-216 ELECTRODE 1001F-168 ELECTRODE BRACKET PART NAME 1004RFA 1004RFA-W Rinnai Corporation ES38 Manual REMARKS...

  • Page 39

    FLUE ASS’Y RHF1000-132 AIR INTAKE ELBOW RHF1000-130-d AIR INTAKE FLEXIBLE HOSE 1004F-2032-1 AIR INLET A 1004F-2033 AIR INLET PACKING 1004F-2052-1 SENSING TUBE A 1004F-2052-2 SENSING TUBE B 1001F-158-2 AIR INTAKE DUCT B PART NAME Rinnai Corporation ES38 Manual REMARKS 1004RFA 1004RFA-W...

  • Page 40

    POWER SUPPLY CABLE ASS’Y 1004F-2054 MOTOR LEAD ASS’Y B 1004F-2053 SENSOR LEAD ASS’Y 1004F-2059 FR LEAD ASS’Y 1001F-1667-3 HIGH TENSION CORD ASS’Y 1004F-2057 THERMISTOR LEAD ASS’Y 1004F-2058 SV.IG LEAD ASS’Y 1004F-2061 TF LEAD ASS’Y PART NAME 1004RFA 1004RFA-W Rinnai Corporation ES38 Manual REMARKS...

  • Page 41

    SCREW ZAA0506SZ SCREW ZAA0420SZ SCREW ZEDB0408SZ SCREW ZHAA0408SZ SCREW ZHAD0510SC SCREW ZDAA0410SZ SCREW ZIAD0408SZ SCREW ZRAB04SZ ZSCA04SZ WASHER CP-30408 SCREW ZAA0306SZ SCREW CP-30486-2 SCREW ZSCA04SC WASHER ZRAA04SC ZAA0440UK SCREW ZIAD0410SC SCREW PART NAME Rinnai Corporation ES38 Manual REMARKS 1004RFA 1004RFA-W...

  • Page 42: Warranty Information, Limited Warranty

    What will Rinnai do? Rinnai will repair or replace the covered product or any part or component that is defective in materials or workmanship as set forth. Rinnai will pay reasonable labor charges associated with the repair or replacement of any such part or component. All repair parts must be genuine Rinnai parts.

  • Page 43: Limited Warranty

    Rinnai shall not be liable for indirect, incidental, special, consequential or other similar damages that may arise, including lost profits, damage to person or property, loss of use, inconvenience, or liability arising from improper installation, service or use.

  • Page 44

    • Up to 83% AFUE Energy Efficiency • Zero-Clearance Installation • Available in Four Options of Fronts • Remotes and Fan Included • Gas Conversion Kit Available Hydronic Air Handler Designed for Use with Rinnai Systems • Domestic Hot Water Priority • Optional Programmable Thermostat •...

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