AERCO Modulex E8 Controller (and BCM) For Modulex EXT Boilers - Manual (Page 78)

E8 Controller and BCM for Modulex EXT
Installation, Operation & Maintenance Manual
CHAPTER 8: BOILER COMMUNICATION MODULE (BCM)
Page 78 of 108 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0093_0A
PRI: 06/24/2013 Phone: 800-526-0288 GF-136-C
Figure 8-2: BCM Features and Controls
Item Feature Function
A
Change-Over
Series/Parallel,
3-Position Switch
Three-position rocker switch for setting internal/external boiler
control.
B
Enable/Disable (I/0),
2-Position Switch
Two-position rocker switch enables the BCM to act as a Back-
Up Controller when placed in the ON (I) position. See Table 8-1
for description of settings related to Item B switch.
C Reset Switch
Momentary two-position rocker switch resets (clears) fault relay
and LED when activated.
D
SW1,
10-Position Rotary Switch
Rotary switch labeled 0 – 9. Sets the corresponding address of
Boiler on the input Modbus or EBUS Network.
E DL1 LED: (YELLOW)
Communication Status Indicator functions as follows:
Status Description
OFF
No devices detected by either
communication interface.
BLINKING
Only one communication device detected
at one communication interface (input or
output).
ON
Both communication interfaces
(input & output) are active.
F DL2 LED: (RED)
Alarm Status LED lights when a fault is detected by the BCM.
Activating the Reset Switch will clear the faults.
G DL3 LED: (GREEN) Pump Status Indicator lights when Pump is running.
Input
Communications
Connector
(Modbus/Ebus)
Output
Communications
Connector (Ebus)
DL1 DL2 (RED) DL3 (GREEN)
Enable/Disable
2-Pos. Switch
SW1
Change-Over
3-Pos. Switch
Reset Switch
B
C
A
D
E F G