AERCO BMS II BOILER - Manual (Page 14)

INSTALLATION
2-2
198 mm (7.8")
145
mm
(5
.7
")
15 mm
(0.6")
REAR VIEW
Figure 2-1. BMS II Mounting Provisions
2.3 GENERAL WIRING REQUIREMENTS
All wiring connections to the BMS II are made at the terminals located behind the wiring compartment
cover as shown in Figure 2-2. Run all wiring through the knock-outs provided on the bottom surface of
the unit. Shielded, twisted-pair cable should be used for sensor and communication wiring. This wiring
should be 18 to 24 AWG. Examples of suitable sensor and communication wire are: Belden 9841, 8761,
3105A or equivalent. AC power wiring should be 14 to 18 AWG. The BMS II wiring diagram is provided in
Appendix E. Once mounting is complete and the BMS is secured in place, loosen the two captive screws
on the wiring compartment cover using a Phillips screwdriver. Feed all wiring through the knock-outs
provided on the bottom of the panel.
NOTE
Refer to the wiring diagram provided in Appendix E when making all
wiring connections to the BMS II.