Wiring, Wiring the power, Wiring the sensors – LAARS M4-Ext - Installation Manual User Manual
Page 11: Wiring the shutdown, tstat, or setback, Warning, Mini-mod-cnc, Installation manual 11, Laars modulating controls m4 & m4-ext, Terminals 31, 32), A b c d
Installation Manual
11
WiRiNg
• All wiring must enter the enclosure through the bottom knockouts.
• Class 1 voltage wiring must utilize a different knockout and conduit from any Class 2 voltage wiring.
WiRiNg THE POWER
(TERMinALS 1, 2)
• Bring the 120VAC 60Hz power wires through the bottom left knockout of the enclosure.
• Connect the hot line to terminal marked L.
• Connect the neutral line to the terminal marked N.
• Laars recommends installing a surge suppressor on the power source to the M4-CNC.
WARNiNg
Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage wiring.
Laars recommends installing a surge suppressor on the power source to the M4-CNC.
SYSTEM
A
B
C
D
Condensing / Non-Condensing Control
1 2
RUN
PROGRAM
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 12VA MAX
INPUT RATINGS:
USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12
13
15
14
17
16
18
22
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
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
PROVE
/DHW
SHUTDOWN
/TSTAT
/SETBACK
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
OD=
25
o
F
SYS=
145
o
F
<>
Connect the shield at the control terminal end and cut the shield wire at the sensor end.
header. The sensor must be inserted in a 3/8 ID well (CA002500 or equivalent).
(Belden #8760 or equivalent (#18/2)).
• Connect the sensor shield to the circled terminal 28 with one of the sensor wires.
Condensing / Non-Condensing Control
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
Condensing / Non-Condensing Control
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
• For an outdoor sensor use the outdoor sensor provided (CA006500).
• Connect the shield to the circled terminal 26 with one of the sensor wires.
WiRiNg THE SHUTdOWN, TSTAT, OR SETBACk
"Shutdown/Tstat/Setback Mode" on page 19. This will provide the user with an adjustable Day/Night Schedule. See
"Day/Night Schedules" on page 28.
• The Shutdown feature can be used whenever it is desirable to turn off the M4-CNC stage outputs from a remote
location or another controller (i.e. EMS input).
• The Tstat option, when selected from the Shutdown/Tstat/Setback startup menu, offer the capability of controlling
the operation of the M4-CNC based on a thermostat input. This will provide the user with an adjustable Day/Night
Schedule.
• The thermostat will send the M4-CNC a call for heat by shorting terminals 31 and 32.
SYSTEM
A
B
C
D
Condensing / Non-Condensing Control
1 2
RUN
PROGRAM
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 12VA MAX
INPUT RATINGS:
USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12
13
15
14
17
16
18
22
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
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
PROVE
/DHW
SHUTDOWN
/TSTAT
/SETBACK
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
OD=
25
o
F
SYS=
145
o
F
<>