5
COMPONENT IDENTIFICATION
Upflow/Horizontal
1
Gas Valve
2
Gas Line Entrance (Alternate)
3
Pressure Switch
4
Gas Manifold
5
Combustion Air Intake Connection / “Coupling”
6
Hot Surface Igniter
7
Rollout Limit
8
Burners
9
Flame Sensor
10
Flue Pipe Connection / “Coupling”
11
Flue Pipe (Internal)
12
Primary Limit
13
Gas Line Entrance
14
Flue Pipe Connection (Alternate)
15
Rubber Elbow
16
Induced Draft Blower
17
Electrical Connection Inlets (Alternate)
18
Coil Front Cover Pressure Tap
19
Coil Front Cover Drain Port
20
Drain Line Penetrations
21
Drain Trap
22
Blower Door Interlock Switch
23
Integrated Control Module
(with fuse and diagnostic LED)
24
24-Volt Thermostat Connections
25
Transformer (40 VA)
26
Circulator Blower
27
Auxiliary Limit
28
Junction Box
29
Electrical Connection Inlets
30
Coil Front Cover
