Users Guide

16
Internal Components
Figure 4: Figure 4: Internal Components
Item
Part #
Description
1
28191
Heat Exchanger Body
2
38030
Vent Outlet Adapter
3
38031
Combustion Air Inlet Adapter
4
61022
Supply & Return NTC Sensor (NTC1, NTC2)
5
61023
Flue NTC Sensor (NTC5)
6
60013
LWCO Pressure Device
7
22123
Condensate Drain Assembly
8
22124
Boiler Piping - Return Assembly
9
22125
Boiler Piping - Supply Assembly
10
67003
Pressure Gauge and Fitting
Internal Components
GF-125U