Installation Instructions

2
S AFETY C ONSIDERATIONS
Adhere to the following warnings and cautions when install-
ing, adjusting, altering, servicing, or operating the furnace.
To ensure proper installation and operation, thoroughly read
this manual for specifics pertaining to the installation and
application of this product.
This furnace is manufactured for use with natural gas. It
may be field converted to operate on L.P. gas by using the
appropriate L.P. conversion kit listed in the PROPANE GAS/
HIGH ALTITUDE INSTALLATIONS section of this manual
Install this furnace only in a location and position as speci-
fied in LOCATION REQUIREMENTS & CONSIDERATIONS sec-
tion and INSTALLATION POSITIONS section of this manual.
Provide adequate combustion and ventilation air to the fur-
nace as specified in COMBUSTION & VENTILATION AIR RE-
QUIREMENTS section of this manual.
ELECTRICAL CONNECTIONS ...................................24
W
IRING HARNESS ...............................................24
115 V
OLT LINE CONNECTIONS ..................................24
JUNCTION BOX RELOCATION .....................................24
24 V
OLT THERMOSTAT WIRING ..................................25
S
INGLE-STAGE HEATING THERMOSTAT APPLICATION ................25
F
OSSIL FUEL APPLICATIONS ......................................25
T
WINNING .....................................................26
115 VOLT LINE CONNECTION OF ACCESSORIES
(HUMIDIFIER AND ELECTRONIC AIR CLEANER) ..................26
GAS SUPPLY AND PIPING .......................................26
H
IGH ALTITUDE DERATE .........................................27
P
ROPANE GAS CONVERSION .....................................27
G
AS PIPING CONNECTIONS ......................................27
PROPANE GAS TANKS AND PIPING................................28
CIRCULATING AIR & FILTERS..................................29
D
UCT WORK - AIR FLOW .......................................29
C
HECKING DUCT STATIC .........................................29
B
OTTOM RETURN AIR OPENING [UPFLOW MODELS] ..............31
F
ILTERS - READ THIS SECTION BEFORE INSTALLING
THE RETURN AIR DUCT WORK................................31
U
PRIGHT INSTALLATIONS .........................................31
H
ORIZONTAL INSTALLATIONS ......................................32
STARTUP PROCEDURE & ADJUSTMENT ......................32
D
RAIN TRAP PRIMING ...........................................32
FURNACE OPERATION ...........................................32
GAS SUPPLY PRESSURE MEASUREMENT ...........................32
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT .......33
DIP SWITCH SETTINGS .........................................34
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY)...........46
TEMPERATURE RISE .............................................46
CIRCULATOR BLOWER SPEEDS ...................................46
BLOWER HEAT OFF DELAY TIMINGS .............................47
NORMAL SEQUENCE OF OPERATION .........................47
P
OWER UP ....................................................47
H
EATING MODE ................................................47
COOLING MODE ................................................48
F
AN ONLY MODE ..............................................48
OPERATIONAL CHECKS .........................................48
SAFETY CIRCUIT DESCRIPTION ...............................48
I
NTEGRATED CONTROL MODULE .................................48
P
RIMARY LIMIT .................................................48
A
UXILIARY LIMIT ................................................48
ROLLOUT LIMIT..............................................48
P
RESSURE SWITCHES ............................................48
F
LAME SENSOR ................................................48
T
ROUBLESHOOTING .............................................49
E
LECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ..................49
C
HECKING FLAME SIGNAL .......................................49
LIMIT FAULT CODES ............................................49
D
IAGNOSTIC CHART .............................................50
F
AULT RECALL .................................................50
R
ESETTING FROM LOCKOUT .....................................50
MAINTENANCE ...................................................51
A
NNUAL INSPECTION ............................................51
FILTERS ........................................................51
BURNERS ......................................................52
INDUCED DRAFT AND CIRCULATOR BLOWERS ......................52
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY)52
FLAME SENSOR (QUALIFIED SERVICER ONLY) ....................52
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ....................52
BEFORE LEAVING AN INSTALLATION .........................52
REPAIR AND REPLACEMENT PARTS ...........................52
TROUBLESHOOTING CHART...................................53
WIRING DIAGRAM ...............................................55
SPECIAL INSTRUCTIONS FOR PRODUCTS INSTALLED
IN THE STATE OF MASSACHUSETTS ..................56
O NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL , ADJUST , SERVICE OR
REPAIR ( HEREINAFTER , “ SERVICE ”) THE EQUIPMENT SPECIFIED IN THIS MANUAL
SHOULD SERVICE THE EQUIPMENT . T HE MANUFACTURER WILL NOT BE RESPONSIBLE
FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR
SERVICE PROCEDURES . I F YOU SERVICE THIS UNIT , YOU ASSUME RESPONSIBILITY
FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY RESULT . I N ADDITION , IN
JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT
SPECIFIED IN THIS MANUAL , ONLY LICENSED PERSONNEL SHOULD SERVICE THE
EQUIPMENT . I MPROPER INSTALLATION , ADJUSTMENT , SERVICING OR REPAIR OF
THE EQUIPMENT SPECIFIED IN THIS MANUAL , OR ATTEMPTING TO INSTALL , ADJUST ,
SERVICE OR REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN PRODUCT DAMAGE , PROPERTY DAMAGE , PERSONAL
INJURY OR DEATH .
Combustion products must be discharged to the outdoors.
Connect this furnace to an approved vent system only, as
specified in VENT/FLUE PIPE & COMBUSTION AIR PIPE sec-
tion of this manual.
Never test for gas leaks with an open flame. Use a commer-
cially available soap solution made specifically for the detec-
tion of leaks to check all connections, as specified in GAS
SUPPLY AND PIPING section of this manual.