W415-3101 / B / 01.09.23
2
IOM
IOM
TABLE OF CONTENTS
1.0 INTRODUCTION 4
2.0 SAFETY SYMBOLS AND WARNINGS 4
2.1 SAFETY RULES 6
2.2 CODES 7
3.0 FURNACE SIZING 9
3.1 MODEL INPUT AND TEMPERATURE RISE 9
4.0 LOCATION OF UNIT 10
4.1 GENERAL GUIDELINES 10
4.2 OTHER CONSIDERATIONS 10
4.3 INSTALLATION IN UPFLOW OR HORIZONTAL POSITIONS 11
4.4 AIR CONDITIONING 12
5.0 COMBUSTIBLE CLEARANCES 12
6.0 DUCTWORK 13
6.1 DUCTWORK STEPS 14
7.0 VENTING AND COMBUSTION PIPING 15
7.1 ACCEPTABLE MATERIALS IN CANADA 15
7.2 ACCEPTABLE MATERIALS IN UNITED STATES 15
7.3 VENT DRAIN OPTION 16
8.0 NON-DIRECT VENT FURNACE INSTALLATIONS USING INDOOR COMBUSTION AIR (ONE PIPE SYSTEM) 17
8.1 DETERMINING COMBUSTION AIR 18
8.1.1 CASE 1: FURNACE LOCATED IN A UNCONFINED SPACE 18
8.1.2 CASE 2: FURNACE LOCATED IN A CONFINED SPACE 18
8.1.3 CASE 3: FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR FROM ATTIC OR CRAWL SPACE 19
8.1.4 CASE 4: FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR DUCTED HORIZONTALLY 19
8.1.5 CONNECTION TO FURNACE NON-DIRECT VENT 20
9.0 VENTING GUIDELINES 21
9.1 VENT TERMINATION 22
9.2 IN CANADA 23
9.3 IN UNITED STATES 23
9.4 FURNACE VENTING INSTALLATIONS 24
9.4.1 NON-DIRECT VENT INSTALLATION USING INDOOR COMBUSTION AIR (ONE PIPE SYSTEM) 24
9.4.2 DIRECT VENT INSTALLATION USING OUTDOOR COMBUSTION AIR (TWO PIPE SYSTEM) 24
9.4.3 COMBUSTION AIR 24
10.0 TERMINATIONS 25
10.1 COMBUSTION AIR 25
10.2 EXHAUST 25
10.3 CONCENTRIC VENTING KIT 25
10.4 CONCENTRIC VENT TERMINATION INSTALLATION INSTRUCTIONS 25
10.5 LOCATION 25
10.6 MULTIPLE VENTING 26
11.0 ROUTING OPTIONS 29
11.1 CONDENSATE DRAINS 29
11.2 PREPARATIONS FOR VENT AND DRAINING OPTION 29
11.3 EXHAUSTER ORIENTATION & PRESSURE SWITCH LOCATION 30
11.4 DRAIN HOSE INSTALLATION 32
11.4.1 DRAIN PIPING 32
11.4.2 PRIMING CONDENSATE TRAP 33
11.5 ALTERNATE CONDENSATE DRAIN PIPING INSTALLATION USING 1/2” PVC OR 3/4” CPVC 34
11.6 CONDENSATE NEUTRALIZERS 34
12.0 GAS SUPPLY AND PIPING 35
12.1 GAS SUPPLY 35
12.2 GAS PIPING 35
12.3 GAS INLET PRESSURE 36
12.4 LEAK TESTING 36
12.5 PURGING GAS LINES 36
13.0 CONVERSIONS 37
13.1 HIGH ALTITUDE CONVERSION 37
13.2 NATURAL TO LP GAS 37
13.3 CONVERSION STEPS 37
13.4 CHECKING THE INLET GAS PRESSURE 38
13.5 SETTING THE MANIFOLD GAS PRESSURE 39
13.6 CHECKING FURNACE INPUT 40
14.0 ELECTRICAL SPECIFICATIONS 41
14.1 ELECTRICAL WIRING AND CONNECTIONS 41
14.2 FURNACE CONNECTION 42
15.0 LOW VOLTAGE WIRING 43
15.1 SINGLE STAGE THERMOSTAT 43
15.2 TWO STAGE THERMOSTAT 44
15.3 THERMOSTAT LOCATION 44
15.4 FURNACE PAIRED WITH HEAT PUMP 44
16.0 OPTIONAL ACCESSORIES (FIELD SUPPLIED/INSTALLED) 45
16.1 ELECTRONIC AIR CLEANER 45
16.2 POWER HUMIDIFIER 45
17.0 INITIAL STARTUP PROCEDURES 46
17.1 TO START THE FURNACE 46
17.2 TO SHUT DOWN THE FURNACE 46
17.3 SEQUENCE OF OPERATION 47
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