Rheem 801S Series Installation Instructions Manual
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Rheem 801S Series Installation Instructions Manual

Upflow/horizontal single stage gas furnaces
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INSTALLATION INSTRUCTIONS

FOR UPFLOW/HORIZONTAL SINGLE STAGE
GAS FURNACES
(-)801S UPFLOW/HORIZONTAL SERIES
(-)801P UPFLOW/HORIZONTAL SERIES
(-)(-)80MSS UPFLOW/HORIZONTAL SERIES
(-)(-)80MSP UPFLOW/HORIZONTAL SERIES
ISO 9001:2008
 Factory Use Only
ST-A1220-01-X0
U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec-
ommended in all applications, and their installation should be in accordance with the
manufacturer's recommendations and/or local laws, rules, regulations, or customs.
92-24161-142-04
SUPERSEDES 92-24161-142-03

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  • Page 1: Installation Instructions

    INSTALLATION INSTRUCTIONS FOR UPFLOW/HORIZONTAL SINGLE STAGE GAS FURNACES (-)801S UPFLOW/HORIZONTAL SERIES (-)801P UPFLOW/HORIZONTAL SERIES (-)(-)80MSS UPFLOW/HORIZONTAL SERIES (-)(-)80MSP UPFLOW/HORIZONTAL SERIES ST-A1220-01-X0 U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec- ommended in all applications, and their installation should be in accordance with the manufacturer’s recommendations and/or local laws, rules, regulations, or customs.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1 TABLE OF CONTENTS..... . . 2 11 TWINNING ....... . 32 Furnace Twinning Installations .

  • Page 3: General Information

    GENERAL INFORMATION NOTE: A heat loss calculation should be performed to properly The (-)801S/(-)801P series furnaces are design certified by CSA determine the required furnace BTU size for the structure. Also, for use with natural and propane gases as follows: the duct must be properly designed and installed for proper air- As a Category I furnace, it may be vented vertically with type B- flow.

  • Page 4: Receiving

    GENERAL INFORMATION (cont.) Install this furnace in accordance with the American National Stan- CALIFORNIA RESIDENTS ONLY dard Z223.1 – latest edition entitled “National Fuel Gas Code” IMPORTANT: All manufacturer products meet current Federal (NFPA54) and requirements or codes of the local utilities or other OSHA Guidelines for safety.

  • Page 5: Checklist

    Installation Instructions remain with the furnace as a reference guide to the servicing contractor. We recommend that performance and installation data be recorded for future reference on this sheet to meet service and warranty obligations so that job site information is available when required. Installation Checklist REFER TO INSTALLATION INSTRUCTIONS GAS SUPPLY...

  • Page 6: Safety Information

    SAFETY INFORMATION WARNING WARNING DO NOT INSTALL THIS FURNACE IN A MOBILE HOME!! COMBUSTION AND VENTILATION AIR MUST BE PRO- THIS FURNACE IS NOT APPROVED FOR INSTALLATION VIDED TO THE FURNACE AS REQUIRED BY THE NA- IN A MOBILE HOME. DOING SO COULD CAUSE FIRE, TIONAL FUEL-GAS CODE (U.S.) AND CSA B149.1 PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

  • Page 7: Important Information About Efficiency And Quality

    SAFETY WARNING WARNING BLOWER AND BURNERS MUST NEVER BE OPERATED DUCT LEAKS CAN CREATE AN UNBALANCED SYSTEM WITHOUT THE BLOWER DOOR IN PLACE. THIS IS TO AND DRAW POLLUTANTS SUCH AS DIRT, DUST, FUMES PREVENT DRAWING GAS FUMES (WHICH COULD CON- AND ODORS INTO THE HOME CAUSING PROPERTY TAIN HAZARDOUS CARBON MONOXIDE) INTO THE DAMAGE.

  • Page 8: Location Requirements

    LOCATION REQUIREMENTS GENERAL INFORMATION WARNING WARNING WHEN THIS FURNACE IS INSTALLED IN A RESIDENTIAL THIS FURNACE IS NOT APPROVED OR RECOMMENDED GARAGE, IT MUST BE INSTALLED SO THE BURNERS FOR INSTALLATION ON ITS BACK, WITH ACCESS DOORS AND IGNITION SOURCE ARE LOCATED NO LESS THAN FACING UPWARDS.

  • Page 9: Upflow Dimensions And Clearance Table

    LOCATION REQUIREMENTS GENERAL INFORMATION (cont.) WARNING WARNING UPFLOW AND HORIZONTAL FURNACES ARE DESIGN- COMBUSTIBLE MATERIAL MUST NOT BE PLACED ON CERTIFIED FOR INSTALLATION ON COMBUSTIBLE OR AGAINST THE FURNACE JACKET. THE AREA FLOORS. NOTE, HOWEVER, THAT FURNACES MUST NOT AROUND THE FURNACE MUST BE KEPT CLEAR AND BE INSTALLED DIRECTLY ON CARPETING, TILE OR FREE OF ALL COMBUSTIBLE MATERIALS INCLUDING OTHER COMBUSTIBLE MATERIAL OTHER THAN WOOD...
  • Page 10 FIGURE 4 UPFLOW/HORIZONTAL DIMENSIONS...

  • Page 11: Ducting

    DUCTING Proper air flow is required for the correct operation of this UPFLOW INSTALLATIONS furnace. Restricted air flow can cause erratic operation and 1. Position the unit to minimize long runs of duct or runs can damage the heat exchanger. The duct system must of duct with many turns and elbows.
  • Page 12 DUCTING NOTE: FIGURE 5 SOLID BASE PLATE PROVIDED WITH (-)801P MODELS ONLY. WHEN SOLID BASE PLATE IS USED . TAPE AROUND BOTTOM FLANGES OF CABINET BEFORE THE UNIT IS INSTALLED. SOLID BASE FLANGE FITS UNDER CABINET BOTTOM LIFT UP, PULL OUT 1.

  • Page 13: Horizontal Units

    DUCTING HORIZONTAL UNITS FIGURE 9 HORIZONTAL RETURN AIR DUCT 1. Position the unit to minimize long runs of duct or runs of (LEFT-HAND AIRFLOW POSITION SHOWN) duct with many turns and elbows. 2. Unit can be mounted left or right side airflow configura- tion.

  • Page 14: Combustion And Ventilation Air

    COMBUSTION AND VENTILATION AIR COMBUSTION AIR REQUIREMENTS • Halogen type refrigerants IMPORTANT: This is not a direct vent furnace. Review venting • Cleaning solvents (such as perchloroethylene) instructions before installing. • Printing inks, paint removers, varnishes, etc. • Hydrochloric acid WARNING •...
  • Page 15 COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES FURNACE LOCATED IN A CONFINED SPACE ALL FURNACE INSTALLATIONS MUST COMPLY WITH A confined space is defined as any space for a given furnace input THE NATIONAL FUEL GAS CODE, NFPA 54 AND LOCAL rating which is smaller than that which is specified in Table 1 as CODES TO PROVIDE ADEQUATE COMBUSTION AND minimum for an “unconfined”...
  • Page 16 COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES TABLE 9 : MINIMUM FREE AREA REQUIRED TABLE 3: MINIMUM FREE AREA REQUIRED TABLE 5: MINIMUM FREE AREA REQUIRED TABLE 1 1: MINIMUM FREE AREA REQUIRED FOR EACH OPENING (WHEN TWO OPENINGS FOR EACH OPENING (WHEN TWO OPENINGS FOR EACH OPENING (WHEN TWO OPENINGS FOR AN OPENING (WHEN O N E OPENING IS...
  • Page 17 COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES FIGURE 12 FIGURE 11 VENT PENETRATIONS VENT PENETRATIONS FOR NON DIRECT VENT FURNACES NON-DIRECT VENT FOR NON DIRECT VENT FURNACES NON-DIRECT VENT AIR FROM ATTIC CRAWL SPACE OUTSIDE AIR AIR FROM ATTIC CRAWL SPACE AIR FROM ATTIC...
  • Page 18 COMBUSTION AND VENTILATION AIR (cont.) It is also acceptable to run the condensate drain (or refriger- CAUTION ant) line access over the air intake hole as long as a 1" mini- mum clearance is maintained. COMBUSTION AIR INTAKES CANNOT BE TERMINATED Combustion air openings must not be restricted in any manner.

  • Page 19: Venting

    COMBUSTION AND VENTILATION AIR (cont.) VENTING GENERAL INFORMATION IMPORTANT APPLICATION NOTES When the furnace is used as a replacement, the existing vent The furnace must be vented in accordance with these instructions, system should be inspected to assure that there are no obstruc- National Fuel Gas Code, ANSI Z223.1 and requirements or codes tions, blockage, or any signs of corrosion and is properly sized for of the local utility or other authority having jurisdiction.

  • Page 20: Special Vent Systems (Svs)

    COMBUSTION AND VENTILATION AIR (cont.) VERTICAL VENT SYSTEMS: Single appliance venting of a fan assisted furnace into a tile-lined 1. A gas vent shall terminate above the roof surface with a listed masonry chimney is prohibited. The chimney must be lined with cap or listed roof assembly.
  • Page 21 COMBUSTION AND VENTILATION AIR (cont.) FIGURE 17 1. STANDARD 3” FLUE CONNECTION. 2. 4” ADAPTER - OPTIONAL SEE NATIONAL FUEL GAS CODE FOR SIZING OPTIONS FRESH AIR INLET ST-A1220-09-01 ST-A1220-09 FIGURE 18 DEDICATED VENTING THROUGH CHIMNEY WITH “B-1” VENT...

  • Page 22: Power Vent Systems

    COMBUSTION AND VENTILATION AIR (cont.) POWER VENT SYSTEMS 1. Visually inspect the venting system for proper size and hori- zontal pitch and determine that there is no blockage, restric- When vertical venting is not possible, the only acceptable method tion, leakage, corrosion or other deficiencies which could for horizontal venting is with the use of Tjernlund model GPAK- cause an unsafe condition.

  • Page 23: Gas Supply

    GAS SUPPLY GAS SUPPLY AND PIPING IMPORTANT SAFETY INFORMATION AND WILL RISE, POSSIBLY ACCUMULATING IN HIGHER PORTIONS OF THE STRUCTURE. NATURAL GAS AND PROPANE • IF A GAS LEAK IS PRESENT OR SUSPECTED: (LIQUEFIED PETROLEUM GAS / LPG) - DO NOT ATTEMPT TO FIND THE CAUSE YOUR- SAFETY SELF.

  • Page 24: Gas Piping

    GAS SUPPLY GAS PIPING IMPORTANT: When making gas pipe connections, use a back-up wrench to prevent any twisting of the control assembly and gas valve. Do not overtighten the connection. THIS FURNACE IS EQUIPPED AT THE FACTORY Any strains on the gas valve can change the position of the gas FOR USE ON NATURAL GAS ONLY.

  • Page 25: Gas Pressure

    GAS SUPPLY (cont.) GAS PRESSURE IMPORTANT: ENSURE that the furnace gas valve is not to be subjected to high gas line supply pressures. FIGURE 20 TYPICAL GAS VALVE (HONEYWELL) DISCONNECT the furnace and its individual manual gas stop from the gas supply piping during any pressure testing that ex- ceeds 1/2 PSIG.

  • Page 26: Setting Gas Pressure

    GAS SUPPLY (cont.) SETTING GAS PRESSURE The maximum gas supply pressure to the furnace must not ELEVATIONS ABOVE 2000 FT. REQUIRE THAT THE FUR- exceed 10.5" w.c. natural gas, or 13" w.c. LP gas. The mini- NACE INPUT RATING BE ADJUSTED AND THAT THE SIZE mum supply gas pressure to the gas valve should be 5 w.c.

  • Page 27: Lp Conversion

    LP CONVERSION GAS PRESSURE LP TANKS FROM LOCAL LP SUPPLIER MUST NOT BE USED TO STORE ANYTHING (SUCH AS FERTIL- IZER) EXCEPT LP GAS. THIS INCLUDES ALL DELIV- ERY VESSELS (LP TRUCKS). IF MATERIAL OTHER THAN LP GAS IS USED IN THE SAME VESSELS/TANK AS THE LP GAS, THE LP GAS CAN BECOME CONTAMINATED AND DAMAGE THE FUR- NACE.

  • Page 28: Electrical Wiring

    ELECTRICAL WIRING ELECTRICAL WIRING These may be obtained from: National Fire Protection Association, Inc. Batterymarch Park TURN OFF ELECTRIC POWER AT FUSE BOX OR Quincy, MA 02269 SERVICE PANEL BEFORE MAKING ANY ELECTRI- CAL CONNECTIONS. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PER- FIGURE 22 SONAL INJURY OR DEATH.

  • Page 29: Thermostat

    ELECTRICAL WIRING REVERSING ELECTRICAL CONNECTION & THERMOSTAT 7. Using a flat screwdriver, squeeze the retaining arms on the NOTE: Do not use 24 volt control wiring smaller than No. 18 door switch and gently pry the door switch from it’s opening. AWG.

  • Page 30: Accessories

    ACCESSORIES ELECTRONIC AIR CLEANER FILTERS (See Figure 27) Line voltage power can be supplied from the terminal labeled Keep filters clean at all times. A filter is not provided with the “EAC” and a line voltage neutral terminal on the control board. furnace, but one must be field-supplied and installed.
  • Page 31 FIGURE 27 FILTER LOCATIONS FLANGE WRAPS AROUND BACK AND SCREWS TO THE REAR OF THE FURNCE, AT THE LOCATIONS PROVIDED CUT OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23” X 14” FIELD SUPPLIED FILTER RXGF-CD ACCESSORY FILTER RACK ST-A1220-07-X0 ST-A1220-07-00 SIDE RETURN...

  • Page 32: Twinning

    Twinning operation of two furnaces, installed side-by-side, con- UT ELECTRONIC CONTROLS 1194- nected by a common duct system with main power supplied by 200 CONTROL BOARD the same source, and controlled by a common thermostat can be done with the UT Electronic Controls 1194-200 integrated control (62-104058-02) boards.
  • Page 33 ST-A1194-25 THERMOSTAT 1-STAGE NOTE: A FAULT CODE 20 WILL FLASH TO INDICATE A TWINNING PROBLEM. CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT.
  • Page 34 ST-A1194-25 THERMOSTAT 2-STAGE...

  • Page 35: High Altitude

    HIGH ALTITUDE NATURAL GAS AT HIGH ALTITUDES From Table F.1 of National Fuel Gas Code Handbook, 2002 (3.5 WARNING w.c. column). Orifice required at Sea Level: #40 INSTALLATION OF THIS FURNACE AT ALTITUDES ABOVE 2000 FT (610 m) SHALL BE IN ACCORDANCE WITH From Table F.4 of National Fuel Gas Code Handbook, Orifice re- quired at 5000 ft.
  • Page 36 TABLE 8 SUPPLEMENTAL ORIFICE SIZE CHART NATURAL GAS ORIFICE SELECTION BASED ON HEATING VALUE & ELEVATION* Notes: 1. All (-)80+ units are factory equiped with orifices sized for 1050 sea level heating value gas. 2. Local utilities adjust the sea level heating value of gasses used at higher elevations to compensate for appliance operation at altitude. Installer must be aware of the local heating value (sea level standard) to use the chart below.

  • Page 37: Lp Gas At High Altitudes

    LP GAS (TABLE 9) based on an 11" of water column pressure at the orifice, which dif- fers from products that use 10" of water column at the orifice. This NOTE: Keep any parts removed during LP conversion procedure difference requires a deviation from the NFGC orifice size recom- stored with the product literature for future use.

  • Page 38: Startup Procedures

    START-UP PROCEDURES This furnace is equipped with a direct ignition control. Each time SEQUENCE OF OPERATION the room thermostat calls for heat, the ignitor lights the main UT ELECTRONIC CONTROLS burners directly. See the lighting instructions on the furnace. Integrated Controls with Direct Spark Ignition. TO START THE FURNACE 1.

  • Page 39: Diagnostics And Fault Codes

    DIAGNOSTICS AND FAULT CODES Sequence of display: A. The first two-digit fault will be displayed once as described All furnace controls come standard with a 7-segment diagnostic above. display. During standby mode with no fault codes present, the B. The upper-most horizontal segment of the seven-segment display will read “0”...

  • Page 40: Lockout

    All lockout conditions can be cleared immediately provided that HARD LOCKOUT the original fault causing the lockout is cleared and power to the Three conditions shall cause a hard lockout: unit is cycled off and then back on again or (soft lockout only) if a 1.

  • Page 41: Field Selections & Adjustments

    A dipswitch bank; SW1 is provided for some field adjustments. Heating blower off delay, cooling (and heat-pump) blower off 90 seconds delay, display (7-Segment) orientation and fault clear are the ad- (Factory Setting) justments and functions that can be handled using the dip- 120 seconds switches.

  • Page 42: Fault Clear

    MANUAL FAULT CLEAR; SW4 switch becomes on/off/on/off/on/off or off/on/off/on/off/on within 30 seconds. When this action is detected within 30 sec- Faults will automatically be cleared from the fault buffer after one onds, the fault code memory buffer shall be cleared. Be sure to week.
  • Page 43 TABLE 10 TIMING DIAGRAM CLOSED OPEN OPEN ST-A1194-27-X0 The maximum gas supply pressure to the furnace should be To change orifice spuds, shut off the manual gas valve and re- move the gas manifold. On LP gas furnaces, the LP gas supply 10.5"...

  • Page 44: Adjusting Or Checking Furnace Input . 43 22 Setting Input Rate

    TABLE 11 METER TIME                     "  #         ...

  • Page 45: Airflow

    AIRFLOW The importance of proper air flow over the heat exchanger cannot FIGURE 31 be over emphasized. TEMPERATURE RISE MEASUREMENT CAUTION IT IS IMPORTANT THAT EACH DUCT SYSTEM BE SIZED AND INSTALLED FOR THE SPECIFIC APPLICATION BY PROPERLY APPLYING THE APPROPRIATE INDUSTRY AC- CEPTED STANDARD.

  • Page 46: Blower Speed Selection

    TABLE 12 AIR FLOW PERFORMANCE – (-)801S/(-)801P & (-)(-)80MSS/(-)(-)80MSP SERIES MODELS CFM Air Delivery Motor HP External Static Pressure, ” W.C. Model Blower Size, Speed Tap (-)801SA050314MSA (-)801PA050314MSA Med. Lo 1030 1018 1006 (-)(-)80MSS050A30SA 11 x 6 Med. Hi 1129 1132 1112 1087...

  • Page 47: Safety Features

    SAFETY FEATURES LIMIT CONTROL/HALC PRESSURE SWITCH The high limit cut-off temperature is set at the factory and cannot This furnace is equipped with a normally-open pressure switch be adjusted. The temperature setting prevents the air tempera- that monitors pressure conditions within the furnace vent system ture leaving the furnace from exceeding the maximum outlet air during the heating cycle.

  • Page 48: Maintenance

    MAINTENANCE MAINTENANCE THESE INSTRUCTIONS ARE INTENDED AS AN AID TO FIRE, ELECTRICAL SHOCK, CARBON MONOXIDE POI- QUALIFIED SERVICE PERSONNEL FOR PROPER IN- SONING, EXPLOSION, PROPERTY DAMAGE, PERSONAL STALLATION, ADJUSTMENT AND OPERATION OF THIS INJURY OR DEATH. UNIT. READ THESE INSTRUCTIONS THOROUGHLY BE- DISCONNECT MAIN ELECTRICAL POWER TO THE FORE ATTEMPTING INSTALLATION OR OPERATION.

  • Page 49: System Operation Information

    ADVISE THE CUSTOMER or radios to influence the thermostat operation. 6. Except for the mounting platform, keep all combustible 1. Keep the air filters clean. The heating system will oper- articles 3 feet from the furnace and vent system. ate better, more efficiently and more economically. 7.

  • Page 50: Troubleshooting

    FIGURE 33 DIAGNOSTICS FLOWCHART CODE DESCRIPTION KEY TO ABBREVIATIONS NOTE: Always verify gas valve inlet and outlet gas Standby IBM = Indoor Blower Motor FLAME (AMBER) LED CODES pressure . IDM = Induced Draft Motor Compressor on (cooling or heat pump heat) OFF = No Flame Presen t IFC = Integrated Furnace Control Gas heat on...

  • Page 51: Wiring Diagram

    FIGURE 34 FOR MODELS WITH UT ELECTRONIC CONTROLS 1028-928 INTEGRATED FURNACE CONTROL AND DIRECT SPARK IGNITION...
  • Page 52 CM 1014...

This manual is also suitable for:

801p series80mss series80msp series

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