BMK 5000-6000 Boiler OPERATION-SERVICE-MAINTENANCE GUIDE
SECTION 4 – MAINTENANCE
OMM-0124_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
59
of
136
GF-208
Ph.: 800-526-0288
05/02/2017
4.14 GAS VALVE ACTUATOR REPLACEMENT
If you need to replace the gas valve actuator, see TID-0092 for Actuator Replacement Kit P/N
27086-TAB. If you are replacing a newer actuator (P/N 124138), the wiring is unchanged.
However, complete the instructions below
only
if you are replacing an older actuator
(P/N
69171, shown in Figure 4-15 below) to change the wiring to accept the new actuator.
CHANGING THE WIRING FROM OLD TO NEW GAS VALVE ACTUATOR
Instructions
1. Remove the new actuator cover, punch out the holes in the plastic to accommodate the
wiring, then insert the wires through wire conduit and wire it as follows:
•
Wire Terminals 4, 5, N, N, L and L identically to the old actuator.
•
Remove & dispose of the two wires attached to Terminals 1 and 2 and wire nut, and the
wire connecting Terminal 3 to the Low Gas Pressure Switch (three dashed lines).
(Current Actuator, P/N 124138, not shown)
Figure 4-15: Wiring Compartment
on
Older Actuator (P/N 69171)
2. Disconnect Wire 153 (dotted line) from Terminal 3 and connect it to the Low Gas Pressure
Switch.
Figure 4-16: Wiring Diagram After Replacing Actuator
LOW GAS
PRESSURE
SWITCH (DUNGS)
Remove and Discard Both
Remove
And Discard
WIRE 153 – TO C-MORE
WIRE 153 – FROM C-MORE
Terminals 1, 2 & 3
appear only on older
actuator P/N 69171
