5
I. COMPONENT IDENTIFICATION
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 Capacitor
24 Integrated Control Module
(with fuse and diagnostic LED)
25 24-Volt Thermostat Connections
26 Transformer (40 VA)
27 Circulator Blower
28 Auxiliary Limit
29 Junction Box
30 Electrical Connection Inlets
31 Coil Front Cover
Upflow/Horizontal
Counterflow/Horizontal
1
9
7
8
7
4
6
12
13
21
20
19
18
3
24
23
25
5
26
27
10
28
3
15
14
16
18
19
2
11
17
30
29
31
B
L
O
W
ER
C
O
M
P
A
R
TM
EN
T
B
U
R
NE
R C
O
M
P
AR
TM
E
N
T
*
*
*
*
*
*
*
*
*
