Installations Instructions

2
TABLE OF CONTENTS
HEATING OPERATION WITH CTK01 THERMOSTAT
(COMMUNICATING) ...................................... 40
HEATING OPERATION WITH CTK02**, CTK03** & CTK04**
THERMOSTAT (MODULATING COMMUNICATING) ................ 40
CONDENSATE DRAIN TRAP PRIMING .......................... 40
FURNACE OPERATION ....................................... 40
GAS SUPPLY PRESSURE MEASUREMENT ........................ 41
GAS MANIFOLD PRESSURE MEASUREMENT ..................... 42
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) ....... 43
TEMPERATURE RISE ......................................... 43
CIRCULATOR BLOWER SPEEDS ................................ 44
BLOWER HEAT OFF DELAY TIMINGS .......................... 45
COMFORTNET™ SYSTEM .................................... 45
OVERVIEW ................................................. 45
AIRFLOW CONSIDERATIONS ................................... 46
FOSSIL FUEL APPLICATIONS .................................. 46
CTK0* WIRING .......................................... 46
COMFORTNET™ SYSTEM ADVANCED FEATURES ................. 47
DIP SWITCHES ............................................. 48
NETWORK TROUBLESHOOTING ................................ 49
SYSTEM TROUBLESHOOTING .................................. 50
FAULT RECALL SEQUENCE ................................... 50
FAULT CLEAR SEQUENCE: ................................... 50
NORMAL SEQUENCE OF OPERATION ........................... 50
POWER UP ................................................ 50
HEATING MODE ............................................ 50
COOLING MODE ............................................ 51
FAN ONLY MODE ........................................... 51
OPERATIONAL CHECKS ...................................... 51
SAFETY CIRCUIT DESCRIPTION ............................... 51
FURNACE CONTROL BOARD .................................. 52
PRIMARY LIMIT ............................................. 52
AUXILIARY LIMIT ........................................... 52
ROLLOUT LIMIT ............................................ 52
FAN ONLY MODE ........................................... 52
OPERATIONAL CHECKS ...................................... 52
SAFETY CIRCUIT DESCRIPTION ............................... 52
FURNACE CONTROL BOARD .................................. 52
PRIMARY LIMIT ............................................. 52
AUXILIARY LIMIT ........................................... 52
ROLLOUT LIMIT ............................................ 53
PRESSURE SWITCHES ........................................ 53
T HE M ANUFACTURER W ILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAM AGE ARISING FROM IM PROPER SERVICE OR SERVICE PROCEDURES . I F
YOU INSTALL OR PERFORM SERVICE ON THIS UNIT , YOU ASSUM E RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAM AGE W HICH M AY RESULT .
M
ANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPM ENT .
WARNING
UPFLOW MODEL INSTALLED VERTICALLY ....................... 24
DRAIN EXITING RIGHT SIDE ................................. 24
DRAIN EXITING LEFT SIDE .................................. 24
UPFLOW MODEL INSTALLED HORIZONTALLY
WITH RIGHT SIDE DOWN ................................. 25
UPFLOW MODEL INSTALLED HORIZONTALLY
WITH LEFT SIDE DOWN .................................. 25
UPFLOW MODEL INSTALLED HORIZONTALLY
WITH LEFT SIDE DOWN - ALTERNATE ..................... 26
COUNTERFLOW MODEL INSTALLED VERTICALLY ................. 26
DRAIN EXITING LEFT SIDE .................................. 26
DRAIN EXITING RIGHT SIDE ................................. 27
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
WITH RIGHT SIDE DOWN ................................ 27
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
WITH LEFT SIDE DOWN .................................. 28
ELECTRICAL CONNECTIONS ................................... 28
WIRING HARNESS .......................................... 28
115 VOLT LINE CONNECTIONS .............................. 28
JUNCTION BOX RELOCATION ................................. 29
24 VOLT THERMOSTAT WIRING ............................. 29
SINGLE-STAGE HEATING THERMOSTAT APPLICATION ............ 30
24 VOLT DEHUMIDISTAT WIRING ............................ 30
FOSSIL FUEL APPLICATIONS .................................. 31
LINE VOLTAGE ACCESSORIES
(ELECTRONIC AIR CLEANER AND HUMIDIFIER).............. 31
24 VOLT HUMIDIFIER ...................................... 31
GAS SUPPLY AND PIPING .................................... 31
HIGH ALTITUDE DERATE ..................................... 32
PROPANE GAS CONVERSION ................................. 32
GAS PIPING CONNECTIONS .................................. 33
PROPANE GAS TANKS AND PIPING............................ 35
CIRCULATING AIR & FILTERS ................................ 36
DUCT WORK - AIR FLOW ................................... 36
CHECKING DUCT STATIC ..................................... 36
BOTTOM RETURN AIR OPENING [UPFLOW MODELS] ........... 36
FILTERS - READ THIS SECTION
BEFORE INSTALLING THE RETURN AIR DUCT WORK .......... 37
UPRIGHT INSTALLATIONS ..................................... 38
HORIZONTAL INSTALLATIONS ................................. 39
STARTUP PROCEDURE & ADJUSTMENT ........................ 39