Aerco AM Series User Manual

AM Series Boiler Heat Exchanger Maintenance & Replacement
Technical Instruction Document
Disconnecting Cables and Wiring Connections - Continued
3. Unplug the two blower power harnesses from the blower.
4. Perform the following to remove the igniter assembly from the heat exchanger:
a) Detach igniter cables from the two igniter terminals.
b) Detach the igniter power harness from the connector on the igniter.
c) Detach the igniter ground wire lug from the screw on the burner flange.
d) Remove the two igniter mounting screws.
e) Remove the igniter assembly from the heat exchanger.
5. Disconnect the two harness connectors from the high limit thermostat.
6. Disconnect the harness from the pressure sensor (Module 1 only).
7. Disconnect the wires from the flow meter.
8. Disconnect the motorized valve power harness (see Figure 2-10).
9. Disconnect the cable from the flue gas flow sensor (red).
10. Disconnect the cable from the flue gas high limit sensor (blue).
11. Disconnect cable from the flame detector terminal on left side of blower flange.
Figure 2-9: Cable Harness Disassembly
1
7
6
b
e
c
3
d
5
a
9
10
11
BURNER
FLANGE
BLOWER
Page 10 of 36 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 TID-0137_0A
02/02/2015 Ph.: 800-526-0288

Aerco AM Series Specifications

General

Brand	Aerco
Model	AM Series
Category	Boiler
Language	English