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Summary of Contents for Rheem R801 V
- Page 1 INSTALLATION INSTRUCTIONS FOR 80+ COMMUNICATING, UPFLOW/HORIZONTAL, ULTRA LOW NOX GAS FURNACES WITH CONSTANT CFM/PWM BLOWER. ST-A1252-26-00 ACCREDITED 92-24161-184-04...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1 TABLE OF CONTENTS ..... . 2 10 STARTUP PROCEDURES ....33 2 GENERAL INFORMATION. -
Page 3: General Information
GENERAL INFORMATION NOTE: A heat loss calculation should be performed to properly are design certified by CSA for use with natural gas as follows: determine the required furnace BTU size for the structure . Also, As a Category I furnace, it may be vented vertically with type the duct must be properly designed and installed for proper air- B-1 vent pipe and also may be common vented as described flow . -
Page 4: Receiving
GENERAL INFORMATION (cont.) MATERIAL INFORMATION Install this furnace in accordance with the American National Standard Z223 .1 – latest edition entitled “National Fuel Gas Code” All manufacturer products meet current Federal OSHA Guide- (NFPA54) and requirements or codes of the local utilities or other lines for safety . -
Page 5: Checklist
Installation Instructions remain with the furnace as a reference guide to the servicing contractor. We recommend 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 that performance and installation data be recorded for future reference on this sheet to meet service and war- obligations so that job site information is available when required. -
Page 6: Safety Information
SAFETY INFORMATION WARNINGS 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 IN A MOBILE HOME. DOING SO COULD CAUSE FIRE, NATIONAL FUEL-GAS CODE (U.S.) AND CSA B149.1 (CANADA) AND THE COMBUSTION AND VENTILATION PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. -
Page 7: Important Information About Efficiency And Quality
SAFETY INFORMATION 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 AND ODORS INTO THE HOME CAUSING PROPERTY CONTAIN HAZARDOUS CARBON MONOXIDE) INTO 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 AND IGNITION SOURCE ARE LOCATED NO LESS THAN DOORS FACING UPWARDS. - Page 9 LOCATION REQUIREMENTS GENERAL INFORMATION (cont.) WARNING WARNING UPFLOW AND HORIZONTAL FURNACES ARE DE- COMBUSTIBLE MATERIAL MUST NOT BE PLACED SIGN-CERTIFIED FOR INSTALLATION ON COMBUS- ON OR AGAINST THE FURNACE JACKET. THE AREA TIBLE FLOORS. NOTE, HOWEVER, THAT FURNACES AROUND THE FURNACE MUST BE KEPT CLEAR AND MUST NOT BE INSTALLED DIRECTLY ON CARPETING, FREE OF ALL COMBUSTIBLE MATERIALS INCLUDING TILE OR OTHER COMBUSTIBLE MATERIAL OTHER...
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Page 10: Upflow/Horizontal Dimensions And Clearance Table
FIGURE 4 UPFLOW/HORIZONTAL DIMENSIONS... -
Page 11: Ducting
DUCTING UPFLOW INSTALLATIONS Proper air flow is required for the correct operation of this furnace . Restricted air flow can cause erratic operation 1 . Position the unit to minimize long runs of duct or runs and can damage the heat exchanger . The duct system of duct with many turns and elbows . - Page 12 DUCTING FIGURE 5 NOTE: SOLID BASE PLATE PROVIDED WITH (-)801T MODELS ONLY . WHEN SOLID BASE PLATE IS USED, TAPE AROUND BOTTOM FLANGES OF CABINET BEFORE THE UNIT IS INSTALLED . 1 . REMOVE 2 SCREWS, LIFT BASE UP, SLIDE FORWARD TO REMOVE .
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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 vent- • Cleaning solvents (such as perchloroethylene) ing instructions before installing. • Printing inks, paint removers, varnishes, etc. • Hydrochloric acid WARNING • Cements and glues • Antistatic fabric softeners for clothes dryers THIS FURNACE AND ANY OTHER FUEL-BURNING AP- • Masonry curing and acid washing materials PLIANCE MUST BE PROVIDED WITH ENOUGH FRESH WARNING AIR FOR PROPER COMBUSTION AND VENTILATION OF THE FLUE GASES. -
Page 15: Furnace Located In Unconfined Space
COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES FURNACE LOCATED IN A CONFINED WARNING SPACE ALL FURNACE INSTALLATIONS MUST COMPLY WITH A confined space is defined as any space for a given furnace THE NATIONAL FUEL GAS CODE, NFPA 54 AND LOCAL input rating which is smaller than that which is specified in Table CODES TO PROVIDE ADEQUATE COMBUSTION AND 1 as minimum for an “unconfined”... - Page 16 COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES TABLE 5: MINIMUM FREE AREA REQUIRED TABLE 3: MINIMUM FREE AREA REQUIRED FOR EACH OPENING (WHEN TWO OPENINGS FOR EACH OPENING (WHEN TWO OPENINGS ARE USED) WITH A FURNACE: ARE USED) WITH A FURNACE: 1.
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Page 17: Combustion Air From Attic
COMBUSTION AND VENTILATION AIR (cont.) COMBUSTION AIR REQUIREMENTS: CONFINED AND UNCONFINED SPACES FIGURE 8 FIGURE 7 OUTSIDE AIR USING A HORIZONTAL INLET & OUTLET AIR FROM ATTIC/CRAWL SPACE FIGURE 12 FIGURE 11 VENT PENETRATIONS VENT PENETRATIONS NON-DIRECT VENT for non direct vent furnaces NON-DIRECT VENT for non direct vent furnaces OUTSIDE AIR... -
Page 18: 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 instruc- system should be inspected to assure that there are no obstruc- tions, National Fuel Gas Code, ANSI Z223 .1 and requirements tions, blockage, or any signs of corrosion and is properly sized or codes of the local utility or other authority having jurisdiction . -
Page 19: Vertical Vent Systems
COMBUSTION AND VENTILATION AIR (cont.) VERTICAL VENT SYSTEMS: Single appliance venting of a fan assisted furnace into a tile- lined masonry chimney is prohibited . The chimney must be lined 1 . A gas vent shall terminate above the roof surface with a listed with either Type B vent or with a listed, single wall, metal lining cap or listed roof assembly . -
Page 20: Existing Vent Systems
COMBUSTION AND VENTILATION AIR (cont.) FIGURE 15 DEDICATED VENTING THROUGH CHIMNEY WITH “B-1” VENT EXISTING VENT SYSTEMS 2 . Insofar as is practical, close all building doors, windows and all doors between the space where the appliances remaining IMPORTANT RETROFIT connected to the common venting system are located . -
Page 21: Gas Supply
GAS SUPPLY GAS SUPPLY AND PIPING IMPORTANT SAFETY INFORMATION • IF A GAS LEAK IS PRESENT OR SUSPECTED: - DO NOT ATTEMPT TO FIND THE CAUSE YOUR- NATURAL GAS SAFETY SELF. - NEVER USE AN OPEN FLAME TO TEST FOR GAS SUPPLY GAS LEAKS. -
Page 22: Gas Piping
GAS SUPPLY GAS PIPING Install a ground joint union outside the cabinet and within 3 feet to easily remove the control valve assembly. Install a manual shut-off valve in the gas line outside the furnace cas- ing. The valve should be readily accessible to turn the gas supply on or off . -
Page 23: Gas Pressure
GAS SUPPLY (cont.) GAS PRESSURE IMPORTANT: ENSURE that the furnace gas valve is not to be FIGURE 17B subjected to high gas line supply pressures . INLET PRESSURE (“T” FITTING) TAP DISCONNECT the furnace and its individual manual gas stop from the gas supply piping during any pressure testing that exceeds ½... -
Page 24: Setting Gas Pressure
GAS SUPPLY (cont.) SETTING GAS PRESSURE MANIFOLD GAS PRESSURE MEASUREMENT The maximum gas supply pressure to the furnace must not exceed 10.5” w.c. natural gas. The minimum supply gas pres- Natural gas manifold pressure should be 3.5” w.c. Only sure to the gas valve should be 59 w .c . natural gas . A properly small variations in gas pressure should be made by adjusting calibrated manometer is required for accurate gas pressure the pressure regulator . -
Page 25: 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 ELEC- TRICAL CONNECTIONS. FAILURE TO DO SO CAN FIGURE 22 CAUSE ELECTRICAL SHOCK RESULTING IN PER- FIGURE 18... -
Page 26: Thermostat
ELECTRICAL WIRING RELOCATING ELECTRICAL CONNECTION & THERMOSTAT 7 . Using a flat screwdriver, squeeze the retaining arms on the Install the room thermostat in accordance with the instruction door switch and gently pry the door switch from it’s opening . sheet packed in the box with the thermostat . - Page 27 ELECTRICAL WIRING THERMOSTAT WIRING DIAGRAMS-HEAT PUMP FIGURE 21 Wiring diagram for a legacy single-stage thermostat with auto-staging . E . Air handler system with legacy thermostats . E1 . Wiring of a single-stage legacy thermostat with auto-staging selected (See Figure 21) . FIGURE 21 WIRING DIAGRAM FOR A LEGACY SINGLE-STAGE THERMOSTAT WITH AUTOSTAGING.
- Page 28 ELECTRICAL WIRING THERMOSTAT WIRING DIAGRAMS-CONDENSING UNIT (NON-COMMUNICATING) FIGURE 22 Wiring diagram for a legacy single-stage thermostat with auto-staging . E . Air handler system with legacy thermostats . E1 . Wiring of a single-stage legacy thermostat with auto-staging selected (See Figure 22) . FIGURE 22 WIRING DIAGRAM FOR A LEGACY SINGLE-STAGE THERMOSTAT WITH AUTOSTAGING.
- Page 29 ELECTRICAL WIRING THERMOSTAT WIRING DIAGRAMS-CONDENSING UNIT (NON-COMMUNICATING) FIGURE 23 Wiring diagram for a legacy single-stage thermostat with auto-staging . E . Air handler system with legacy thermostats . E1 . Wiring of a single-stage legacy thermostat with auto-staging selected (See Figure 23) . FIGURE 23 WIRING DIAGRAM FOR A LEGACY SINGLE-STAGE THERMOSTAT WITH AUTOSTAGING.
- Page 30 ELECTRICAL WIRING THERMOSTAT WIRING DIAGRAMS-CONDENSING UNIT (NON-COMMUNICATING) FIGURE 24 Wiring diagram for a fully communicating system . FIGURE 24 WIRING DIAGRAM FOR A FULLY COMMUNICATING SYSTEM. ST-A1325-10...
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Page 31: Accessories
ACCESSORIES FIELD INSTALLED OPTIONAL ACCESSORIES ELECTRONIC AIR CLEANER NOTE: Maximum current – 1 .0 amps for each option (humidifier or electronic air cleaner) . Line voltage power can be supplied from the terminal labeled FILTERS “EAC” and a line voltage neutral terminal on the control board . (See Figures 25 and 26) This will power the electronic air cleaner whenever the circulat- Keep filters clean at all times . - Page 32 ACCESSORIES FIELD INSTALLED OPTION ACCESSORIES (cont.) FIGURE 26 HORIZONTAL HORIZONTAL FILTER KITS FILTER KITS 17 .5” CABINET: RXGF-F17 RXGF-CB 21 .0” CABINET: RXGF-F21 ACCESSORT FILTER RACK RXGF-CC ACCESSORT FILTER RACK FIELD SUPPLIED FILTER ST-A1252-22-00 ST-A1252-22-00...
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Page 33: Startup Procedures
START-UP PROCEDURES SEQUENCE OF OPERATIONS Learning/Calibration Cycle Configuration: This furnace is equipped with an intermittent pilot control . Each time the room thermostat calls for heat, the ignitor lights the pilot A call for heat closes R and W on the control . The IFC (Internal which lights the burner directly . -
Page 34: Integrated Furnace Control
INTEGRATED FURNACE CONTROL HUMIDIFICATION/DEHUMIDIFICATION B.DEHUMIDIFICATION CONTROL WITH NO An optional 24VAC humidistat can be installed as shown in Figures 30 thru 33 . With the optional humidistat, two HUMIDIFICATION separate conditions must be met before B1. WITH COMMUNICATING THERMOSTAT humidification can begin 1) . There must be a call for heat and the blower must be engaged and 2 .) The For communicating thermostats listed with this furnace, humidistat must determine that there is a need for... - Page 35 INTEGRATED FURNACE CONTROL HUMIDIFICATION/DEHUMIDIFICATION C2. WITH NON-COMMUNICATING THERMOSTAT as shown in Figures 24 . These figures show installation (REQUIRES OPTIONAL HUMIDISTAT) of a humidifier with external and internal power supplies respectively . For non-communicating thermostats, an optionalhumidi- stat must be installed . Controlled humidification and dehumidification can be accomplished using a humidistat FIGURE 27 110V or 24V...
- Page 36 INTEGRATED FURNACE CONTROL FIGURE 29 WIRING FOR OPTIONAL DE-HUMIDIFICATION AND HUMIDIFICATION WITH OPTIONAL HUMIDIFIER (HUMIDIFIER WITH INTERNAL POWER SUPPLY). NOTE: FOR USE WITH NON-COMMUNICATING SYSTEMS . NEUTRAL OR COMMON HUMIDIFIER WITH EXTERNAL 110V OR +110V OR 24VAC 24V POWER SUPPLY HUMIDISTAT (24V) G B Y EAC EAC HUM HUM...
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Page 37: Supply & Outdoor Air Temperature Sensors
INTEGRATED FURNACE CONTROL SUPPLY & OUTDOOR AIR TEMPERATURE SENSORS 1. P1 (4-Pin), P2 (7-Pin) and P5 (5-Pin) - Low-Voltage 10. FUSE Internal Wiring A fuse is provided to protect low-voltage (24VAC) circuits Connections – Connect main twistlock wire harness to these from shorts between 24VAC and Ground or Common . - Page 38 INTEGRATED FURNACE CONTROL SUPPLY & OUTDOOR AIR TEMPERATURE SENSORS 13. SUPPLY AND OUTDOOR AIR TEMPERATURE displayed on the seven segment displays . If the resistance between the outdoor air terminals (OAT) is determined to be SENSOR INPUTS (T4) out of range to a high resistance, it shall be interpreted as an Optional field installed supply air SA1, SA2 outdoor air sen- uninstalled supplied outdoor air sensor and shall not cause an sors (10K NTC thermistor) shall be read from the T4 screw...
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Page 39: Auxiliary Inputs
INTEGRATED FURNACE CONTROL AUXILIARY INPUTS 14. AUXILIARY INPUTS (COMMUNICATING SYSTEMS normally closed contacts . System operation when the con- tacts either open or close can be configured at the communi- ONLY) (T4) (SEE FIGURE 32) cating thermostat . Terminal T4 is provided for field installation of up to two aux- A resistance of greater than 1k ohms to common shall be iliary switches . -
Page 40: Timing Diagram
TIMING DIAGRAM On this page are timing diagrams for heat sequences . These diagrams assume no faults are present during the heat call . TABLE 7 80+ ULN CALIBRATION CYCLE ST-A1252-17-00 ST-A1252-17-00 80+ ULN CALIBRATION CYCLE TABLE 8 80+ ULN NORMAL HEAT CYCLE ST-A1252-18-00 ST-A1252-18-00... -
Page 41: Field Selections & Adjustments
FIELD SELECTIONS & ADJUSTMENTS FIELD ADJUSTMENTS NOTE: For systems that are NOT fully communicating, EXV Superheat Setpoint .(This only shows up if the control board shows the EXV input is enabled): Bluetooth connection and the contractor app will be re- quired for proper airflow selections . -
Page 42: Fault Codes
FAULT CODES Note: For detailed Fault Code and trouble-shooting information download contractor app and scan QR code on furnace . FAULT CODES DIAGNOSTICS AND FAULT CODES The higher priority fault code will be displayed until the condition is corrected then the lower priority fault code will display (pro- All furnace controls come standard with a 7-segment diagnostic vided the fault condition is still present) . -
Page 43: 15 1-Stage Lockout
1-STAGE LOCKOUT LOCKOUT All lockout conditions can be cleared immediately provided that 1. The control senses an unspecified internal fault. Fault code “93” is set and displayed . This lockout condition cannot be the original fault causing the lockout is cleared and power to the unit is cycled off and then back on again or (soft lockout only) if reset by cycling the heat call . - Page 44 TABLE 9 FAULT CODES FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS DUAL FAULTS DISPLAYED The method for displaying a two-digit fault is to display the first digit (most significant) digit for one second immediately followed by the second digit - which is also displayed for a duration of one second. A 1/2 second pause is then displayed. Cycle repeats until the fault is cleared.
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Page 45: Failed Ignition
TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS FAILED IGNITION STATUS: Up to three failed ignitions will not constitute a critical condition. Critical condition (with no heating operation) is only noted when the furnace has failed to ignite four or more times consecutively. After four failed ignition attempts, the IFC enters one-hour lockout and the dual faults "11 "... - Page 46 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS FLAME LOST AFTER ESTABLISHED STATUS: Flame loss is not a critical fault. Subsequent ignition attempts will follow and normal operation should resume. However, a lost flame can often be followed by failed ignition attempts then a one-hour lockout. Once the status has reached one-hour lockout, the fault condition is critical (although attempts at ignition will be made again after the 1 hour lockout).
- Page 47 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS MAIN LIMIT OPEN/AUXILIARY LIMIT OPEN STATUS: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function. DESCRIPTION: The main limit auxiliary limit has opened or is sensed to be opened. This normally means that the temperature inside the heat exchanger area or blower area has gone above a certain predetermined critical value and heating operation is not permitted until the limit cools to within normal parameters.
- Page 48 MANUAL RESET OVER-TEMPERATURE SWITCH OPEN STATUS: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function. DESCRIPTION: The Manually Reset Limit Control (M.R.L.C.) is also known by the name over temperature switch. There can be several on any given furnace.
- Page 49 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS COMBUSTION PRESSURE SWITCH CLOSED WHEN SHOULD BE OPEN STATUS: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function if present simultaneously with a heating call (e.g. defrost call in dual-fuel mode). DESCRIPTION: The combustion pressure switch should not be closed when the inducer is not running.
- Page 50 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS COMBUSTION PRESSURE SWITCH OPEN WHEN SHOULD BE CLOSED STATUS: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function if present simultaneously with a heating call (e.g. defrost call in dual-fuel mode). DESCRIPTION: This fault indicates that the pressure switch is open when the inducer is energized.
- Page 51 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS BLOWER FAULT - DEAD BLOWER STATUS: This is a critical fault. The furnace will not operate in any mode. DESCRIPTION: The blower has failed critically or there is a critical motor fault - such as thermal limit trip that prevents the blower motor from running.
- Page 52 TABLE 9 FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS VENTURI AIR INLET PRESSURE SWITCH OPEN STATUS: This is a critical fault. The furnace will not operate in gas heat modes but all other modes (e.g. cooling) should function if present simultaneously with a heating call (e.g. defrost call in dual-fuel mode). DESCRIPTION: There is an obstruction at or near the inlet of the fuel and air mixing venturi.
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Page 53: Field Selections & Adjustments
FIELD SELECTIONS & ADJUSTMENTS FIELD SELECTIONS –– DIPSWITCHES A dipswitch bank; SW1 is provided for some field adjustments . Heat Blower-Off Delay; SW2 & SW3 A means of controlling the HEAT speed blower “off” delay time Heating blower off delay, cooling (and heat-pump) blower off is provided . -
Page 54: Manual Fault Clear; Sw4
FIELD SELECTIONS & ADJUSTMENTS FAULT CLEAR MANUAL FAULT CLEAR; SW4 within 30 seconds . When this action is detected within 30 sec- onds, the fault code memory buffer shall be cleared . Be sure Faults will automatically be cleared from the fault buffer after to return the dipswitch to the original state (on or off) or is in the one week . -
Page 55: Setting Input Rate
FIELD SELECTIONS & ADJUSTMENTS TABLE 10 METER TIME METER TIME IN MINUTES AND SECONDS FOR NORMAL INPUT RATINGS OF FURNACES EQUIPPED FOR NATURAL GAS HEATING VALUE OF GAS (BTU/FT INPUT METER SIZE 1030 1070 (BTU/HR) /REV) 50,000 70,000 98,000 Formula: Input BTU/HR = Heating Value of Gas (BTU/ft ) ×... -
Page 56: High Altitude
HIGH ALTITUDE INSTALLATION This Ultra Low NOx furnace maintains efficiency by operating Adjust the input rate by adjusting manifold pressure to match the under a specific air fuel mixture . Maintaining the proper fuel rate and elevation in the chart below . To calculate rate see the mixture is essential to proper operation of the furnace . -
Page 57: Airflow
AIRFLOW The importance of proper air flow over the heat exchanger cannot FIGURE 28 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 ACCEPTED STANDARD. -
Page 58: Safety Features
SAFETY FEATURES LIMIT CONTROL PRESSURE SWITCHES The high limit cut-off temperature is set at the factory and This furnace is equipped with (2) normally-open pressure cannot be adjusted . The temperature setting prevents the air switches that monitor pressure conditions within the furnace temperature leaving the furnace from exceeding the maximum vent system during the heating cycle . -
Page 59: Maintenance
MAINTENANCE MAINTENANCE THESE INSTRUCTIONS ARE INTENDED AS AN AID BLY RESULTING IN FIRE, ELECTRICAL SHOCK, CAR- TO QUALIFIED SERVICE PERSONNEL FOR PROPER BON MONOXIDE POISONING, EXPLOSION, PROPERTY INSTALLATION, ADJUSTMENT AND OPERATION DAMAGE, PERSONAL INJURY OR DEATH. OF THIS UNIT. READ THESE INSTRUCTIONS THOR- DISCONNECT MAIN ELECTRICAL POWER TO THE OUGHLY BEFORE ATTEMPTING INSTALLATION OR UNIT BEFORE ATTEMPTING ANY MAINTENANCE. -
Page 60: System Operation Information
RESULTING IN CARBON MONOXIDE POISON- ING OR DEATH. THE VENT PIPE OR HEAT EX- CHANGER MUST BE REPLACED IF THEY LEAK. REPLACEMENT PARTS Homeowners please visit www .rheem .com for product Replacement parts division visit information . http://www .rheemparts .com/Catalog/... - Page 61 FIGURE 35 FOR MODELS WITH UT ELECTRONIC CONTROLS 1194-200 INTEGRATED FURNACE CONTROL AND DIRECT SPARK IGNITION 115 VAC 24 VAC 3 AMP FUSE NEUTRALS LINE DISC...
- Page 64 CM 0223...
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