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440 04 6601 03

Specifications are subject to change without notice.

2

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,

maintenance, or use can cause explosion, fire, electrical shock,

or other conditions which may cause death, personal injury, or

property damage. Consult a qualified installer, service agency,

or your distributor or branch for information or assistance. The

qualified installer or agency must use factory

authorized kits or

accessories when modifying this product. Refer to the individual

instructions packaged with the kits or accessories when

installing.
Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Use quenching cloth for brazing operations.

Have fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions included in

literature and  attached to the unit. Consult local building codes,

the current editions of the National Fuel Gas Code (NFCG)

NFPA 54/ANSI Z223.1, and the National Electrical Code (NEC)

NFPA 70.
In Canada refer to the current editions of the National standards

of Canada CAN/CSA

B149.1 and .2 Natural Gas and Propane

Installation Codes, and Canadian Electrical Code CSA C22.1.
Recognize safety information. This is the safety

alert symbol

. When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury.

Understand these signal words; DANGER, WARNING, and

CAUTION. These words are used with the safety

alert symbol.

DANGER identifies the most serious hazards which 

will 

result in

severe personal injury or death. WARNING signifies hazards

which 

could 

result in personal injury or death. CAUTION is used

to identify unsafe practices which 

may 

result in minor personal

injury or product and property damage. NOTE is used to

highlight suggestions which 

will

 result in enhanced installation,

reliability, or operation.

!

WARNING

PERSONAL INJURY, AND/OR PROPERTY DAMAGE

HAZARD

Failure to carefully read and follow this warning could

result in equipment malfunction, property damage,

personal injury and/or death.

Installation or repairs made by unqualified persons could

result in equipment malfunction, property damage,

personal injury and/or death.

The information contained in this manual is intended for

use by a qualified service technician familiar with safety

procedures and equipped with proper tools and test

instruments.

Installation must conform with local building codes and

with the Natural Fuel Gas Code (NFCG) NFPA 54/ANSI

Z223.1, and National standards of Canada

CAN/CSA

B149.1 and .2 Natural Gas and Propane

Installation Codes.

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal

injury or death.
Before performing service or maintenance operations

on unit, always turn off main power switch to unit and

install lockout tag. Unit may have more than one power

switch.

!

WARNING

CARBON MONOXIDE POISONING AND FIRE

HAZARD

Failure to follow safety warnings could result in personal

injury, death, and/or property damage.
This furnace is not designed for use in mobile homes,

trailers or recreational vehicles.

!

CAUTION

CUT HAZARD

Failure to follow this caution may result in damage

personal injury.
Sheet metal parts may have sharp edges or burrs. Use

care and wear appropriate protective clothing, safety

glasses and gloves when handling parts and servicing

furnaces.

Summary of Contents for R9MSB

Page 1: ...n the following manner CAUTION Signal Words on Product Labeling Signal words are used in combination with colors and or pictures or product labels The signal word WARNING is used throughout this manua...

Page 2: ...eath WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE...

Page 3: ...115vac terminal is energized whenever blower operates HUM 24vac terminal is only energized when the low pressure switch LPS is closed on a call for heat Prime Condensate Trap with Water CARBON MONOXID...

Page 4: ...ired orifice to the manifold pressure to the heat content and specific gravity of the gas To do this 1 Obtain average yearly gas heat value at installed altitude from local gas supplier 2 Obtain avera...

Page 5: ...put is obtained replace cap that conceals gas valve regulator adjustment screws Main burner flame should be clear blue almost transparent See Figure 12 i Remove jumper R to W 2 Verify natural gas inpu...

Page 6: ...exchangers or condensing flue gases in heat exchanger areas not designed for condensate S Shortened furnace life S Component damage Temperature rise must be within limits specified on furnace rating p...

Page 7: ...nals when furnace is in low heat and after blower starts 4 Set heat anticipator on thermostat per thermostat instructions and install on sub base or wall 5 Install blower access door Electronic thermo...

Page 8: ...LE STAGE A11153 Gas Valve without Tower Pressure Ports ON OFF SWITCH 1 8 NPT INLET PRESSURE TAP REGULATOR SEAL CAP REGULATOR ADJ UNDER CAP 1 2 NPT OUTLET MANIFOLD PRESSURE TAP SET SCREW 3 32 HEX HEAD...

Page 9: ...290 22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 9...

Page 10: ...10 440 04 6601 03 Specifications subject to change without notice 338309 201 Rev E A11602 Figure 5 Service Label Information...

Page 11: ...2 42 3 3 42 3 4 915 825 43 3 6 43 3 7 43 3 8 42 3 2 850 44 3 8 43 3 5 43 3 6 43 3 7 875 44 3 6 44 3 7 43 3 4 43 3 5 4000 900 44 3 4 44 3 5 44 3 7 44 3 8 1219 925 44 3 2 44 3 4 44 3 5 44 3 6 950 44 3...

Page 12: ...0 885 Red 3 2 5 394 1030 1025 1030 1010 985 940 905 855 805 735 0801716 SIDE BOTTOM Black 4 0 408 1800 1770 1735 1685 1630 1570 1495 1415 1330 1230 Yellow 3 5 386 1445 1430 1410 1385 1350 1305 1255 11...

Page 13: ...re switch is 0 68 in W C The minimum break point of the switch is 0 63 in W C The maximum break point of the switch is 0 73 in W C The maximum make point of the switch is 0 83 in W C ELECTRICAL SHOCK...

Page 14: ...T CONDENSING UNIT TWO WIRE FURNACE C O N T R O L R G COM W C R G Y GND GND FIELD 24 V WIRING FIELD 115 208 230 460 V WIRING FACTORY 24 V WIRING FACTORY 115 V WIRING 208 230 OR 460 V THREE PHASE 208 23...

Page 15: ...est furnace with room thermostat to be sure that it operates properly with the room thermostat Check all modes including Heat Cool and Fan 8 Check operation of accessories per manufacturer s instructi...

Page 16: ...binet 7 Replace filter cabinet door 8 Turn on electrical supply to furnace Blower Motor and Wheel Maintenance To ensure long life economy and high efficiency clean accumulated dirt and grease from blo...

Page 17: ...aning Burners and Flame Sensor The following items must be performed by a qualified service technician If the burners develop an accumulation of light dirt or dust they may be cleaned by using the fol...

Page 18: ...burner assembly without striking the igniter on surrounding parts c Inspect igniter for signs of damage or failure d If replacement is required remove the screw that secures the igniter on igniter bra...

Page 19: ...xchangers The following items must be performed by a qualified service technician Primary Heat Exchangers If the heat exchangers get an accumulation of light dirt or dust on the inside they may be cle...

Page 20: ...ed Follow these procedures to winterize your furnace UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the furnace and other property damage Do not use ethylene glyco...

Page 21: ...ner Manifold A11461 Figure 12 Burner Flame SET SCREW MOTOR WHEEL HUB MOTOR SHAFT FLAT SCREW MOTOR ARM GROMMET SCREW LOCATION BLO HSG ASSY BRACKET BRACKET ENGAGEMENT SEE DETAIL A CAPACITOR OR POWER CHO...

Page 22: ...22 440 04 6601 03 Specifications subject to change without notice FLAME SENSOR BELOW BURNER FLAME ROLLOUT SWITCH BRACKET IGNITER IGNITER BURNER SUPT ASSY BURNER ASSY A11403 Figure 14 Burner Assembly...

Page 23: ...y If the burner flame is proven the blower motor is energized on HEAT speed 25 sec after the gas valve GV is energized Simultaneously the electronic air cleaner terminal EAC 1 is energized and remains...

Page 24: ...flash the status code of the previous fault or status code 11 1 short and 1 long flash if there was no previous fault After the control repeats the code 4 times the control will go through a brief com...

Page 25: ...control will repeat the ignition sequence 3 more times before lockout 14 occurs If flame signal is lost during the blower on delay period blower will come on for the selected blower off delay Check t...

Page 26: ...26 440 04 6601 03 Specifications subject to change without notice 339236 2 Rev A Figure 16 Wiring Diagram...

Page 27: ...r motor capacitor when used Inducer motor module when used Pressure switch es FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in danger...

Page 28: ...URE 060 60 000 BTU hr 080 80 000 BTU hr 100 100 000 BTU hr 120 120 000 BTU hr INPUT HEAT 14 14 3 16 17 17 1 2 21 21 24 24 1 2 CABINET WIDTH 16 1600 CFM max 20 2000 CFM max 22 2200 CFM max COOLING AIRF...

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