Manual 2100-631
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3 of 53
CONTENTS
FIGURES
F
igure 1
Unit Dimensions .................................. 9
Figure 2
Mounting Instructions – W24G-36G ..... 12
Figure 2A Mounting Instructions – W42G-60G ..... 13
Figure 3
Combustible Clearance – W24G-36G ... 14
Figure 3A Combustible Clearance – W42G-60G.... 14
Figure 4
Wall Mounting Instructions .................. 15
Figure 5
Wall Mounting Instructions .................. 15
Figure 6
Common Wall Mounting Installations .... 16
Figure 7
Location of Vent Terminal in Shipping .. 17
Figure 8
Vent Terminal & Combustion
Air Intake .......................................... 18
Figure 9
Fresh Air Damper ............................... 19
Figure 10 Installation of Flexible Conduit ............ 21
Figure 11A T-Stat Connection using Comb. ............ 23
Figure 11B T-Stat using Temp. & Humidity Ctrl. ..... 24
Figure 11C MFAD, Classroom Vent. Spring & Power ...
& ERV Low Voltage Connections ........... 25
Figure 11D Economizer Low Volt. Connections ....... 25
Figure 12 Gas Pipe Connection ........................... 26
Figure 13 Proper Piping Practice ........................ 27
Figure 14 Access Internal Filter through
Upper Service Door ............................. 34
Figure 15 Lighting & Shutdown Label ................. 36
Figure 16 Top View of Gas Control ...................... 37
Figure 17 Sequence of Operation – Electronic
Blower Control ................................... 40
Figure 18 Furnace Control Board &
Blower Control ................................... 41
Figure 19 Circuit Diagrams ................................ 50
Figure 20 Fan Blade .......................................... 52
Figure 21 Low NOx Insert .................................. 52
TABLES
Table 1
Specifications – W24G-36G Models .........7
Table 1A Specifications – W42G-60G Models .........8
Table 2
Minimum Installation Clearances ...........17
Table 3
Thermostat Wire Size ............................22
Table 4A Wall Thermostat ...................................22
Table 4B Humidistat ..........................................22
Table 5
Length of Standard Pipe Threads ...........27
Table 6
Gas Pipe Sizes – Natural Gas ................27
Table 7
Natural Gas Derate Capacities
For All Models .....................................30
Table 8
Natural Gas Orifice Tables – W24G-36G ...31
Table 8A Natural Gas Orifice Tables – W42G-60G .32
Table 9
Motor Speed Taps ................................41
Table 10 W24G Indoor Blower Performance .........42
Table 11 W30G Indoor Blower Performance .........43
Table 12 W36G Indoor Blower Performance .........44
Table 13 W42G Indoor Blower Performance ........45
Table 14 W48G Indoor Blower Performance .........46
Table 15 W60G Indoor Blower Performance .........47
Table 16 Integrated Furnace & Blower
Control Operation .................................48
Table
Dehum. Relay Logic Board Table ...........49
Table 17 Refrigerant Charge – Pressure Table .......51
Table 18 Fan Blade Dimension ...........................52
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