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Chapter 2. – Product Specifications
2-2. Dimensions & Connections
5.8" [148mm]
A
C
D
9.0" [228mm]
Description
A
Exhaust
B
Air Intake
C
Hot Water
D
Condensate
E
Recirculation Return Connection
F
Cold Water Connection
G
Gas
H
Cold Water Filter
I
Recirculation Return FIlter
11.5" [292mm]
4.6" [117mm]
B
H
I
F
G
E
2.4" [62mm]
3.3" [84mm]
6.4" [163mm]
Size
3"
3"
3/4"
1/2"
3/4"
3/4"
3/4"
-
-
1
2
3
4
5
6
7
8
9
10
27
11
12
28
NO
Name of Component
1
Exhaust
2
Igniter
3
Ignition Plug
4
Burner High Limit Switch
5
Primary Heat Exchanger
6
Secondary Heat Exchanger
7
On-Demand Terminal Block
8
Control Panel
9
Water Mixing Valve
10
Recirculation Pump
11
Hot Water Connection
12
Condensate Trap
13
Recirculation Return Connection with Filter
14
Circuit Board
15
Cold Water Connection with Filter
16
Gas Connection
17
Water Control Valve
18
Main Flow Sensor
19
Air Pressure Switch
20
Main Power Switch
21
Flame Sensor
22
Gas Valve
23
AGM (Air Gas Mixer)
24
Fan Motor
25
Internal Air Intake Filter
26
Air Intake
27
Water Leak Detector
28
Recirculation Flow Sensor
Dimensions & Connections
26
25
24
23
22
21
20
19
17
18
14
16
13
15
7
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