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BMC and BMC-6X Installation and Operation Manual
WIRING TO MODULATING MOTORS
The BMC can modulate any combination of the following motors. The Output Type must be selected properly
before connecting any output wires to avoid damage components. See Output Type on page 11.
WIRING THE 4-20MA MODULATING MOTORS (A TERMINALS 13, 14), (B TERMINALS 16, 17),...
•
The BMC can operate up to four 4-20 mA modulating motors.
•
The BMC-6X can operate up to six 4-20 mA modulating motors.
•
The BMC and the BMC-6X sources 24VDC excitation voltage for the 4-20mA signal.
•
Wire the (-) from the modulating motor to the boiler terminal on the BMC marked (GND). That is for boiler A,
the modulating (-) terminal will be 13.
•
Wire the (+) from the modulating motor to the boiler terminal on the BMC marked (mA). That is for boiler A,
the modulating (-) terminal will be 14.
WIRING THE VOLTAGE MODULATING MOTORS (A TERMINALS 13, 15), (B TERMINALS 16, 18),...
•
The BMC can operate up to four 0-5V, 0-10V, 1-5V, or 2-10V modulating motors.
•
The BMC-6X can operate up to six 0-5V, 0-10V, 1-5V, or 2-10V modulating motors.
•
Wire the (GND) from the modulating motor to the boiler terminal on the BMC marked (GND). That is for
boiler D, the modulating (GND) terminal will be 22.
•
Wire the (V+) from the modulating motor to the boiler terminal on the BMC marked (VLT+). That is for
boiler D, the modulating (V+) terminal will be 23.
CONNECTING TO THE BMC-6X PANELS
•
The BMC is equipped with a 6-pin phone socket (RS485) to connect to extension panels. The BMC-6X is equipped with two
6-pin phone sockets to connect to BMC and an additional BMC-6X.
•
Configure the Output Types (see page 11) after connecting the Extension panels to be able to configure their outputs.
•
Only 6-wire phone cable must be used for proper operation.
•
Connection cable is provided as part of the BMC-6X package.
•
Phone cables must be of a 6-wire with 6-pin terminals. Phone cables can extend up to 100'.
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
C
US
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
CAUTION
: RISK OF ELECTRIC SHOCK
LISTED
More than one disconnect switch may be required
99RA
to de-energize the equipment before servicing.
Connecting BMC to
Two Extension Panels
using RS485
BMC
BMC
Full Modulation Sequencing Control
SYSTEM
A
B
---
---
C
D
DO NOT APPLY ANY VOLTAGE
PROGRAM
RUN
TO INPUT TERMINALS
BMC-6X A
BMC-6X
Full Modulation Sequencing Extension
E
K
F
L
C
US
G
M
H
N
ENCLOSED
ENERGY
MANAGEMENT
I
O
J
P
EQUIPMENT
LISTED
99RA
Comm
Power
Ext A
Ext B
E
K
F
L
PWR
E
K
F
L
G
M
H
N
I
O
J
P
CUR / VLT
CUR / VLT
CUR / VLT
L N
GND
mA
VLT
GND
mA
VLT
GND
GND
GND
1 2
3 4
5 6
7 8
9 10
11 12
11 12
13
14
15
16
17
18
19
19
16
BMC-6X B
BMC-6X
Full Modulation Sequencing Extension
K
E
F
L
C
US
G
M
H
N
ENCLOSED
ENERGY
MANAGEMENT
I
O
J
P
EQUIPMENT
LISTED
99RA
Comm
Power
Ext A
Ext B
E
K
F
L
PWR
E
K
F
L
G
M
H
N
I
O
J
P
CUR / VLT
CUR / VLT
CUR / VLT
L N
GND
mA
VLT
GND
GND
mA
VLT
GND
GND
1 2
3 4
5 6
7 8
9 10
11 12
11 12
13
14
15
16
16
17
18
19
19
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
More than one disconnect switch may be required
to de-energize the equipment before servicing.
G
M
H
N
I
O
J
P
EXTENSION
MODULE
CUR / VLT
CUR / VLT
CUR / VLT
mA
VLT
GND
GND
mA
VLT
GND
mA
VLT
GND
mA
VLT
GND
RS-485
20
21
22
23
24
25
26
27
16
29
30
22
28
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
More than one disconnect switch may be required
to de-energize the equipment before servicing.
G
M
H
N
I
O
J
P
EXTENSION
MODULE
CUR / VLT
CUR / VLT
CUR / VLT
mA
VLT
GND
GND
mA
VLT
GND
mA
VLT
GND
GND
mA
VLT
RS-485
20
21
22
22
23
24
25
26
27
28
16
29
30
11
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