Rinnai RHFE-431FA User Manual

Owner’s Operation and Installation Manual

RHFE-431FAⅢ

ENERGYSAVER

GAS DIRECT VENT WALL FURNACE

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

This appliance may be installed in an aftermarket, permanently located, manufactured home (USA) or mobile home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless a certified kit is used.

─ 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.

WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

HOME OWNER / INSTALLER

FOR YOUR SAFETY

THIS MANUAL MUST BE READ IN ITS

ENTIRETY BEFORE OPERATING HEATER

WARNING

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE, REFER TO THE OWNER'S INFORMATION MANUAL PROVIDED WITH THIS APPLIANCE. INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

ENERGYSAVER RHFE-431FA

Operation Manual

Table of Contents

Page

FEATURES OF THE RHFE-431FA UNITS ........................................................1

SAFETY DEVICES ................................................................................................1

IMPORTANT POINTS / USAGE AND INSTALLATION MUSTS ............................3

DIMENSIONS ........................................................................................................5

SPECIFICATIONS .................................................................................................6

SAFETY POINTS ..................................................................................................8

GETTING TO KNOW YOUR NEW RHFE-431FA

..............................................10

CONTROL PANEL .................................................................................................11

CUT-AWAY DIAGRAM ...........................................................................................12

NOTICE BEFORE INSTALLATION .......................................................................13

INSTALLATION INSTRUCTIONS ..........................................................................14

GAS CONNECTION ..............................................................................................15

VENT LOCATION ..................................................................................................16

FITTING TOP SPACER + WALL CLIP ..................................................................16

VENT TERMINATION CLEARANCES ..................................................................17

LOCATION / CLEARANCES .................................................................................18

SLEEVE AND MANIFOLD INSTALLATION ...........................................................20

FITTING UNIT .......................................................................................................22

OPERATING INSTRUCTION LABEL ....................................................................24

ADDITIONAL CUSTOMER OPERATING INFORMATION ....................................25

TESTING ...............................................................................................................32

CHECK ..................................................................................................................32

PRE-SERVICE CHECK .........................................................................................33

TROUBLE SHOOTING ..........................................................................................34

MAINTENANCE / SERVICE ..................................................................................35

CONSUMER SUPPORT ........................................................................................37

SCHEMATIC DIAGRAM ........................................................................................39

PARTS LIST ...........................................................................................................44

RHFE-431FA

FLOW DIAGRAM .........................................................................50

EXTENDED FLUE PIPE KIT .................................................................................51

TECHNICAL DATA ................................................................................................56

FEATURES OF THE RHFE-431FA UNITS

SAFETY DEVICES

– 1 –

◆ Clean Heating Forced Flue Type

◆ Easy Operation One-Touch Ignition

◆ Sensible Temperature Control Feature

◆ Comfortable Room Temperature Control and Display

◆ Warm Air Outlet at Floor Level (Keeps Your Feet Warm)

◆ Child Safety Lock

◆ Room Temperature Setting Memory

◆ Dirty Air Filter Indicator Lamp

◆ Energy-Saving Economy Setting

◆ Humidifier Tray

◆ Air Flow Directional Louvers

◆ Direct Vent Easily Installed

◆ Proportional Heating Variable Capacity

◆ Hush! Quiet Operation

◆ Modern Design Minimizes Floor Space Requirements

◆ Failure Message Display

Spark Safety Device: Automatically shuts unit down when there is an abnormal spark at time

of ignition. Display lamps “LOW”, “60”, and “64” will activate if this happens.

Flame Failure Device: Activated when burner flame fails, indicator lamp “ON” flashes. If

burner fails to ignite, indicator lamp “60” flashes. This prevents raw gas from being released.

Overheat Switch: This device automatically cuts the gas off if the heater exceeds a

predetermined temperature. This is normally caused by an obstruction in front of the louvers, or a blocked fan filter. Indicator lamp “68” “ON” and the “FILTER” indicator lamp flash when overheat switch is activated.

Two Fusible Links: Backs up the overheat switch. If the fusible link cuts the unit off, a

service call by an authorized person is required to replace the link. Indicator lamps “68” , “FILTER” and “ON” will flash.

– 2 –

Overcurrent Prevention Device: This is a 3 amp. glass fuse found on P.C. board. Design to

shut unit down in case of overcurrent. If fuse blows all indicator lamps will be “OFF”.

Power Outage Safety Device: This safety device cuts off gas passage and stops

operation.

Local and state codes must be adhered to prior to installation.

Rinnai is continually updating and improving products therefore specifications are subject to change without prior notice.

Thank you for purchasing Rinnai gas forced flue heater.

Before using this product, please read this manual carefully to insure proper use of the product.

Please read the attached warranty thoroughly and keep it in a safe place.

GENERAL INFORMATION

THIS SERIES HEATER IS DESIGN CERTIFIED BY CSA INTERNATIONAL AS A DIRECT VENT WALL FURNACE AND MUST BE INSTALLED ACCORDING TO THESE INSTRUCTIONS. ALTERATION OF THE ORIGINAL DESIGN INSTALLED OTHER THAN AS SHOWN IN THESE INSTRUCTIONS OR USED WITH A TYPE OF GAS NOT SHOWN ON THE RATING PLATE, IS THE RESPONSIBILITY OF THE PERSON AND COMPANY MARKING THE CHANGE.

※See conversion for setting gas pressures.

*There are two 1/8" NPT test points for measuring differential pressure, one is located on the modulating

gas valve, the other is located on the burner manifold. The minimum inlet gas supply pressure is for the purposes of input adjustment.

Minimum supply gas pressure

Maximum supply gas pressure

Manifold test pressure

3.5" (89mmH2O)

10.5" (267mmH2O)

Factory set

LPG

8" (203mmH2O)

13.0" (330mmH2O)

Factory set

IMPORTANT POINTS / USAGE AND INSTALLATION MUSTS

– 3 –

Unpack heater and check for damage. (DO NOT INSTALL DAMAGED HEATER.) If heater is damaged, contact your supplier for advise. Before installing a heater, check the label for the correct gas type (see label on heater). Refer to local gas authority for confirmation of gas type if you are in doubt.

Included in Carton:

Customers Operating Information

IMPORTANT Before using this product, please read this manual carefully to insure proper use of product.

1. The installation must conform with local codes or, in absence of local codes, the National Fuel Gas Code, ANSI Z223.1 or the Canadian Installation Code, CAN/CGA-B149.

2. For information on gas type, see data plate on the appliance.

3. This heater must not be installed where curtains or other combustible materials could come into contact with it. In some cases curtains may need restraining.

4. This appliance is not designed to be built in.

5. If you move, check the gas type in the area where you are moving to. The local gas authority will be able to advise on local regulations.

6. This heater discharges a large volume of warm air at low level to provide even heat distribution. If the air in the room contains cooking vapor or cigarette smoke, and the heater is used on a carpet, the surface of the carpet may become discolored. In addition, some nylon carpets contain dyes which may be affected by the warm air flow. Some soft vinyl surfaces are also subject to distortion, or discoloration by warm air. To prevent discoloration of carpets, etc., a mat should be placed under the appliance, extending about 30" (750mm) in front of it.

Diagram shows minimum clearances from combustible materials.

7. Read these rules and the instructions carefully. Check all local codes. Failure to follow these could cause a malfunction of the heater resulting in death, serious bodily injury and/or property damage.

8. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless a certified kit is used. If a conversion of the unit is needed, conversions must be performed at Rinnai America or anthorized agent at owner's expense.

9. WARNING: Any change to this heater or its controls can be dangerous.

10.If a gas leak is suspected, turn heater off, turn gas supply valve off at appliance connector valve. Open windows to ventilate area immediately and contact your dealer or gas company.

11 .DO NOT PLACE CLOTHING OR FLAMMABLE MATERIALS, GASOLINE AND OTHER

FLAMMABLE VAPORS AND LIQUIDS, ON OR NEAR THE HEATER.

10"

40"

– 4 –

12. YOUNG CHILDREN SHOULD BE CAREFULLY SUPERVISED WHEN THEY ARE IN THE SAME ROOM WITH THE HEATER.

13. LPG containers must not be installed indoors.

14. Do not use this room heater if any part has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

15. Adequate clearances for accessibility for purposes of servicing and proper operation should be provided.

16. Adequate clearances around air openings should be provided.

17. Do not install in areas where curtains, drapes, clothing, or other moving flammables are within 12 inches of this unit.

18. Periodic examination of the venting system is required.

19. The flow of combustion and ventilation air should not be obstructed.

20. A manufactured home (USA only) or mobile home OEM installation must conform with the Manufactured Home Construction and Safety Standard, Title 24CFR, Part 3280, or, when such a standard is not applicable, the Standard for Manufactured Home Installations, ANSI Z225.1 or Standard for Gas Equipped Recreational Vehicles and Mobile Housing, CSA Z240.4.

21. "This appliance must be installed in accordance with the current standard CSA Z240.4 GAS EQUIPPED RECREATIONAL VEHICLES AND MOBILE HOUSING. Cet appareil doit ette installe conformement aux, exigences de la norme Z240.4 en vigeuer de l’ACNOR, Installations de gaz dans les constructions mobiles et vehicules recreatifs."

22. If a blockage occurs at vent terminal due to snow, leaves or other type of obstruction the unit will stop working. The unit will not function until blockage has been removed then if unit fails to operate, contact a qualified service agency.

23. For a manufactured home (USA only) or mobile home OEM or residential or light commercial installation,this unit has been designed and certified to be converted from natural gas to propane or vice-versa. When provisions are being made to convert this unit, a certified conversion kit must be used. You must also readjust manifold gas pressure to specifications indicated in the conversion manual. If in doubt, contact Rinnai America for assistance.

DIMENSIONS

– 5 –



21 13/16" (554mm)

19 15/16" (506mm)

8 7/16"(214mm)

Power supply cable

29 1/2" (750mm)

8 9/16"

(217mm)

9 5/8"

(245mm)

Exhaust at rear of unit

3 7/16" (88mm)

11 " (280mm)

R8.0"

(R206mm)

R11"

(R279mm)

(25mm)

18"

Gas Inlet

3 3/8" (85mm)

6 1/2" (165mm)



SPECIFICATIONS

– 6 –

MODEL

RHFE-431FA -P

PROPANE

BTU/h MIN. CLEARANCES

INPUT

OUTPUT

SIDE

TOP

LO:110.5

HI:141.3

LO:110.5

HI:141.3

FRONT

(50mm)

10"

(250mm)

40"

(1m)

40"

(1m)

FAN CFM

OUTPUT

10"

(250mm)

(50mm)

Low

8,200

Low

6,640

High

13,530

Low

6,640

High

13,530

High

16,700

Low

8,200

High

16,700

SPECIFICATIONS

Type of Appliance Fan forced flued gas furnace

Model RHFE-431FA ENERGYSAVER

Width (750mm) 29 1/2"

Dimensions Depth (250mm with back spacer)9 13/16" (with back spacer)

Height (554mm) 21 13/16"

Weight Approx. 51 lbs.

Connections

Electrical AC 120V 60Hz 40 watts Gas 1/2" female NPT

Combustion System Stainless steel bunsen burner

Ignition System Continuous spark

Operation Finger touch control buttons (non-lock)

Temperature Control

Electronic thermostat HI-LOW/OFF Up/down switch

Temperature Range

Modulates Continuous

LOW 55°F 60°F 80°F HI High Combustion

Warm Air Outlet Bottom front louver

Indicators/Lamps Burner ON, child lock, filter, economy, temperature display (8)

Operating Buttons On, Up/down, child-lock, economy

Economy Mode Energy saving feature

Humidifier Tray Capacity 3 pints (1300cc)

RHFE-431FA -N

NATURAL

– 7 –

Safety Devices

Noise Level Range

HI LOW 38 32dB(A)

TYPE

SPECIFICATIONS FOR VENT SIZES

S Thin Walls Mobile Home

Wood Walls

Wood/Brick

Brick/Block

Special

" 4 1/2"

(75 115)mm

4 1/2" 9 1/2"

(115 240 )mm

9 1/2" 15 3/4"

(240 400 )mm

15 3/4" 23 5/8"

(400 600 )mm

23 5/8" 31 1/2"

(600 800 )mm

(80mm) 3 1/8

(4m, 2 bends) 13ft., 2 bends

Combustion Method

Air Supply Exhaust

Radiation Method

Forced combustion

Closed Type

Forced convection

Wall Penetration

Hole

Max. Extended

AIR SUPPLY/ EXHAUST PIPE

Flame failure – Flame rod Over heat – Bi-metal switch, thermal fuse, thermistor Power failure – PCB Power surge – 3 Amp. fuse Fan delay – Micro computer timer Pre-purge – Combustion fan, pre-purge timer, spark sensor Room over heat – Automatic cut off at 104°F after 10 minutes

** BTU - Efficiency increase with vent size. Clearances from combustibles see pages 3 and 19. ** Thermal efficiency rating determined under continuous operating conditions, and was determined

independently of any installed system.

SAFETY POINTS

– 8 –

Do not restrict the warm air discharge by placing articles in front of the heater.

This appliance must not be used for any purpose other than heating.

Do not install the heater in an unusually dusty area.

Do not allow anyone to sit on or lean against the appliance.

Do not spray aerosols while the heater is operating. Most aerosols contain butane gas, and can be a fire hazard if used near this heater when it is in use.

Do not allow curtains or other flammable or combustible materials to come into contact with the heater.

Combustible materials must not be placed where the heater could ignite them.

– 9 –

SAFETY POINTS

Keep flammable materials, trees, shrubs, etc., away from the flue terminal.

Do not allow anyone to poke articles through the louvers.

Young children should be supervised at all times. Hand or body contact with the louvers should be avoided.

Do not allow young children or an infant to sleep directly in front of the heater.

Filter should be cleaned at regular intervals. See page 30.

Do not place articles containing liquids on top of the heater. Liquids spilled on the controls may cause extensive damage.

Clean with vacuum cleaner, weekly.

LPGAS

GAS

Gasoline

VENT TERMINAL COMBUSTION/ EXHAUST

GETTING TO KNOW YOUR NEW RHFE-431FA

– 10 –

WARM AIR OUTLET

HUMIDIFIER REMOVE BOTTOM COVER AND PULL OUT TO REFILL

BOTTOM COVER HOLD BOTH SIDES AND PULL TOWARD YOU

THERMISTOR

GAS CONNECTIONS 1/2" NPT

POWER CORD

PLUG 120V AC

COMBUSTION AIR INTAKE HOSE

EXHAUST PIPE

AIR FILTER

DISPLAY TEMPERATURE SETTING CONTROLS

ON/OFF SWITCH TURNS MAIN POWER ON/OFF

RATING PLATE MODEL NUMBER, SERIAL NUMBER, GAS TYPE, ETC.

TERMINAL BLOCK FOR COMBUSTION FAN

CONTROL PANEL

– 11 –

CHILD SAFETY LOCK Lamp is "green" when this feature is on.

TEMPERATURE DISPLAY Set temperature lamp stays on. Current room temperature flashes.

FILTER LAMP Flashes when filter is dirty.

OPERATION LAMP This lamp turns "green" when power is on. Lamp will change to "red" when burner is on.

TEMPERATURE BUTTONS

adjust temp. to

lower setting.

adjust temp. to

a higher setting.

ENERGY SAVING BUTTON Lamp is

green when this feature is activated.

ON/OFF BUTTON Easy operation One touch ignition

ALL BUTTONS BEEP WHEN OPERATED.

Child Lock

LO 60

68 72 76 80 HI

Temperature

Control

Economy

Filter

ON/OFF

– 12 –

CUT-AWAY DIAGRAM

– 13 –

NOTICE BEFORE INSTALLATION

The heater must be installed by a qualified service person according to this installation instruction.

Check your local building codes for the proper method of installation. In the case of absence of local codes, this heater should be installed in accordance with the National Fuel Gas Code ANSI Z223 1.

Check local codes or, in the absence of local codes, the current CAN/CGA B149 INSTALLATION CODE.

DUE TO HIGH TEMPERATURES, THE APPLIANCE SHOULD BE LOCATED OUT OF TRAFFIC AND AWAY FROM FURNITURE AND DRAPERIES. CHILDREN AND ADULTS SHOULD BE ALERTED TO THE HAZARDS OF HIGH SURFACE TEMPERATURES AND SHOULD STAY AWAY TO AVOID BURNS OR CLOTHING IGNITION.

“WARNING” Do not operate appliance with the panel(s) removed, cracked or broken. Replacement of the panel(s) should be done by a licensed or qualified service person.

INSTALLATION AND REPAIR SHOULD BE DONE BY A QUALIFIED SERVICE PERSON. THE APPLIANCE SHOULD BE INSPECTED BEFORE USE AND AT LEAST ANNUALLY BY A QUALIFIED SERVICE PERSON. MORE FREQUENT CLEANING MAY BE REQUIRED DUE TO EXCESSIVE LINT FROM CARPETING, BEDDING MATERIAL, ETC. IT IS IMPERATIVE THAT CONTROL COMPARTMENTS, BURNERS AND CIRCULATING AIR PASSAGEWAYS OF THE UNIT BE KEPT CLEAN.

The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 or Canadian Electrical Code, CSA C22.1, if an external electrical source is utilized.

WARNING: THIS APPLIANCE IS EQUIPPED WITH A THREE PRONG (GROUNDING) PLUG FOR YOUR PROTECTION AGAINST SHOCK HAZARD AND SHOULD BE PLUGGED DIRECTLY INTO A PROPERLY GROUNDED THREE PRONG RECEPTACLE. Do not cut or remove the grounding prong from the plug.

This gas appliance must not be connected to a chimney flue serving a separate solid-fuel burning appliance. When the appliance is installed directly on carpeting, tile or other combustible material other than wood flooring, the appliance shall be installed on a metal or wood panel extending the full width and depth of the appliance.

Rinnai recommends a dedicated electrical circuit.

Appliance input ratings are based on sea level operation and need not be changed for operation up to 2,000 feet elevation. For operation at elevations above 2,000 feet, manufactured to specified deration conditions for Canada and the United States.

– 14 –

INSTALLATION INSTRUCTIONS

Flue Manifold 1

Back Spacer Set

Flue Locking Clamp

Flue Lock Stopper

Insulation Clip

Hose Clip

Plastic tie for air inlet

(M4

20) For Flue Lock Stopper

For Flue Manifold

Wall Bracket Screws

(M4)

(M4.8 32)

Wood Screws

Air Filter

(M4)

For Back Spacer Set

For Air Intake Clip

(M4)

Customers operating

information and

Installation Instructions

Spare rubber seal

(‘A’ Flue units only)

(For weatherboard installations)

Check to ensure gas supply matches that of the appliance. Refer to local gas authority for confirmation of gas type if in doubt. Refer to data plate located inside of the front panel. Check for damage, if the unit is damaged contact your supplier or Rinnai. Do not install a damaged unit before checking with your supplier. Refer to an approved pipe sizing chart if in doubt about size of gas line.

Wall Bracket Spacer Bracket11

– 15 –

GAS CONNECTION

1. The gas supply line shall be gas tight, sized and so installed as to provide a supply of gas sufficient to meet the maximum demand of the heater without loss of pressure.

2. A shut off valve (and appliance connector valve) should be installed in the upstream of the gas line to permit servicing.

3. Flexible pipe and any appliance connector valve used for gas piping shall be types approved by nationally recognized agencies.

4. Any compound used on the threaded joint of the gas piping shall be a type which resists the action of liquefied petroleum gas.

5. Supplied gas pressure must be within the limits shown in the specifications.

6. After completion of gas pipe connections, all joints including the heater must be checked for gas tightness by means of leak detector solution, soap and water, or an equivalent nonflammable solution, as applicable.

CAUTION: Since some leak test solutions, including soap and water, may cause corrosion or stress cracking, the piping shall be rinsed with water after testing, unless it has been determined that the leak test solution is noncorrosive.

7. The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 P.S.I (3.5kPa).

The appliance must be isolated from the gas supply piping system by closing its individual manual shut off valve during any pressure testing of the gas supply system at test pressures equal to or less than 1/2 psig.

8. Two 1/8" test plugs are provided for testing of manifold differential pressure. See schematic for location. At time of installation installer must supply a 1/8" N.P.T. plugged tapping, accessible for test manometer connection, immediately up stream of the gas supply connection to the appliance.

– 16 –

VENT LOCATION FITTING TOP SPACER + WALL CLIP

FLUE MANIFOLD POSITION

Center of hole for flue manifold can be drilled anywhere within the shaded area. (To avoid studs, etc.)

FOR WEATHERBOARD WALLS DRILL THROUGH CENTER OF WEATHER BOARD FROM OUTSIDE, THEN DRILL FROM INSIDE THROUGH PLASTERBOARD.

Before drilling the flue hole, check for water and gas pipes as well as electric cables. Use a 3 1/8" (80mm) drill for hole through wall.

WALL MOUNTING BRACKETS

Place top back spacer in position. Mark the position of the top edge of the top space on the wall. Move the heater away from the wall. Mark center lines 1 1/8

" (30mm) down from the top edge mark, and 1 9/16" (40mm) in front the left and right hand sides of the top spacer. Attach wall brackets at the marked position.

Tighten all screws.

Replace top spacer, clipping the spacer into the wall brackets at the same time as attaching it to the heater. Secure top spacer with the screws provided. THE HEATER IS NOW SECURED TO THE WALL.

Replace fan filter.

SECURE HEATER TO WALL

Flue Hole

3 1/8"

(80mm)

8 7/16"

(214mm)

R11"

(R279mm)

R8.0"

(R206mm)

8 9/16"

(217mm)

11"

(280mm)

Cavity Opening

Spacer bracket

Top spacer

Wall bracket

Spacer bracket

Spacer

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