Modulating wiring diagram, M4-lhs, M4-lhs installation and operation manual – LAARS M4-LHS - Installation Manual User Manual
Page 54: System pump, Boi le r 3 b oi le r 4
HT# 059295-00
A
M4-LHS installation and Operation Manual
51
Boiler 3
Boiler 4
Boiler 1
Boiler 2
Boiler 3
Boiler 4
Boiler 1
Boiler 2
4 - 20 mA
Modulating
Signal Outputs
Outdoor Sensor
System Sensor
Prove Jumper Do Not remove
Shield
Shield
L
N
System Pump
L
N
4 Modulating
boilers
Activation Signal
SYSTEM
A
B
C
D
1 2
RUN
PROGRAM
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12
13
15
14
17
16
18
20
19
21
24
23
29
25
27
26
28
32
30 31
L N
-
+
+
T
T
O
O
RS-485
mA
GND
VLT
SYS
A
B
C
D
PWR
CUR / VLT
A
-
+
+
mA
GND
VLT
-
+
+
mA
GND
VLT
+
+
mA
22
-
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
PROVE
/DHW
SHUTDOWN
/SETBACK
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 30VA MAX
INPUT RATINGS:
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
/TSTAT
M4-LHS
HYBRID CONTROL
Boiler 1
Boiler 2
Boiler 3
Boiler 4
B
oi
le
r 1
B
oi
le
r 2
Voltage
Modulating
Signal Outputs
Outdoor Sensor
System Sensor
Prove Jumper Do Not remove
Shield
Shield
L
N
System Pump
L
N
4 Modulating
boilers
Activation Signal
B
oi
le
r 3
B
oi
le
r 4
SYSTEM
A
B
C
D
1 2
RUN
PROGRAM
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12
13
15
14
17
16
18
20
19
21
24
23
29
25
27
26
28
32
30 31
L N
-
+
+
T
T
O
O
RS-485
mA
GND
VLT
SYS
A
B
C
D
PWR
CUR / VLT
A
-
+
+
mA
GND
VLT
-
+
+
mA
GND
VLT
+
+
mA
22
-
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
PROVE
/DHW
SHUTDOWN
/SETBACK
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 30VA MAX
INPUT RATINGS:
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
/TSTAT
M4-LHS
HYBRID CONTROL
MODuLaTiNg WiriNg DiagraM
STarTuP SETTiNgS
Boiler Type = Modulation
Output Type = 4-20ma
Boiler Number = 4
STarTuP SETTiNgS
Boiler Type = Modulation
Output Type = Any Voltage
Option
Boiler Number = 4
Four 4-20ma
Modulating Boilers
Four Voltage
Modulating Boilers