TABLEOF CONTENTS
Page Number
INTRODUCTION ..........................................................................................................................4
FURNACE DESIGN ...................................................................................................................... '
Heat exchanger ................................................................................................................ .
lnshot burner assembly .....................................................................................................6
Induced draft blower motor (IDM)......................................................................................6
Ignition systems .................................................................................................................
?
Limit switches ....................................................................................................................7
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Over temperature switches ...............................................................................................7
Remote flame sensor ........................................................................................................7
Cabinet ..............................................................................................................................7
Blowers .............................................................................................................................. ?
Transformer .................................................................................................................. .....
8
Pressure switch .................................................................................................................8
Gas valve ...........................................................................................................................8
UNIT MODEL NUMBER EXPLANATION .................................................................................... 9
UNIT SERIAL NUMBER EXPLANATION ...................................................................................10
EQUIPMENT APPLICATION .....................................................................................................11
Unit specifications ............................................................................................................11
ACCESSORIES ANO OPTIONAL EQUIPMENT .......................................................................22
LP conversion kits ...........................................................................................................22
Combustible floor base ....................................................................................................22
Return air cabinets ..........................................................................................................22
Metal base plate ..............................................................................................................23
Plenum adapters and coil plenums .................................................................................23
Fossil fuel kits ..................................................................................................................23
External filter frames ........................................................................................................23
Twinning kits ....................................................................................................................23
Sidewall Vent Kits ............................................................................................................23
INSTALLATION REQUIREMENTS ............................................................................................24
SAFETY RULES ANO HELPFUL INFORMATION .....................................................................24
LOCATION .................................................................................................................................25
CLEARANCE ACCESSIBILITY ..................................................................................................25
COMBUSTION AND VENTILATION AIR ...................................................................................30
Furnace located in unconfined space using indoor air ....................................................31
Furnace located in a confined space ...............................................................................31
Using indoor air for combustion .......................................................................................31
Using outdoor air for combustion ....................................................................................3
VENTING GENERAL INFORMATION .......................................................................................33
Induced draft blower ........................................................................................................33
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Furnace category information ..........................................................................................33
Retrofit venting instructions .............................................................................................33
Vent pipe material.. .......................................................................................................... 33
Vertical venting with B-vent .............................................................................................34
Vertical vent systems .......................................................................................................35
SPECIAL VENT SYSTEM (S.V.S.) ............................................................................................35
POWER VENT SYSTEMS .........................................................................................................36
GAS SUPPLY
ANDPIPING .......................................................................................................37
ELECTRICAL WIRING
...............................................................................................................39
Electrical connections ......................................................................................................39
Thermostat ......................................................................................................................39
Heat anticipator settings ..................................................................................................39
ISOLATION RELAY ......................................._............................................................................ .40
RETURN AIR DUCTING AND SUPPLY ....................................................................................40
Upflow units .................................................................................................................... .41
START-UP PROCEOURE ..........................................................................................................41
Standing pilot models ......................................................................................................
41
Electronic ignition models ............................................................................................... .42
FURNACE
TWINNING .............................................................................................................. .43
Honeywell instructions .................................................................................................... .43
UTEC instructions ............................................................................................................
44
FOSSIL FUEL KITS (RXPF-E01) ...............................................................................................48
Location and wiring ......................................................................................................... .48
Thermostat operation ......................................................................................................48
FOSSIL FUEL KITS (RXPF-F01) .............................................................................................. .49
Location and wiring ......................................................................................................... .49
Theromstat operations ................................................................................................... .49
FOSSIL FUEL KITS (RXPF-F02) ...............................................................................................50
Location and wiring ..........................................................................................................50
Thermostat operations ....................................................................................................50
ACCESSORY BLOWER TIME DELAY RXMD-CO2 ..................................................................50
MAINTENANCE .......................................................................................................................... 5.
Filters...............................................................................................................................51
Optional external filter racks ............................................................................................53
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Lubrication .......................................................................................................................54
Burner and heating components .....................................................................................54
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