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Honeywell CENTRA LINE MERLIN NX Series Installation & Commissioning Instructions page 7

Room controller
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MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
*OPTIONAL FUSE (TO PROTECT CONTROLLER'S INTERNAL
TRANSFORMER, WHICH HAS ONLY A NON-RESETTABLE FUSE).
CLCMTR40x/TR42x
LIGHT
WALL MODULE
I/O
22
°C
20
21
22
23
24
WM1
WM2
24V~
C2+
C2-
1
2
3
4
L
N
24V~
24V0
L
N
230 V
F1*
CLCMTR40x/TR42x
WALL MODULE
22
°C
20
21
22
23
WM1
WM2
24V~
C2+
1
2
3
24V~
L
N
L
N
230 V
Fig. 9. RS4N example wiring (230-V model) (with actuator powered by extra transformer)
PROP.
PROP.
COOL
HEAT
25
26
27
28
29
24V0
AO1
24V~
GND
AO2
AO3
5
6
7
8
9
TN
T~
T01
TN
T02
THERM.
THERM.
N
TIN
COOL
HEAT
Fig. 8. RS4N example wiring (230-V model)
24V~
PROP.
DAMPER
GND
ACTUATOR
LIGHT
I/O
24
25
26
27
28
24V0
24V~
C2-
AO1
GND
4
5
6
7
24V0
T01
TN
T~
THERM.
COOL
F1
24V0
24V~
N
L
LINE VOLTAGE
30
31
32
34
35
24V~
GND
UI1
GND
UI2
10
11
12
RO4
IN4
RN
ELECTR.
RIN
N
REHEATER
L
N
LINE VOLTAGE
CLCM2T WALL MODULE
0...10V
1
2
TEMP
SETP
COM
31
32
33
34
35
36
24V~
GND
AO4
UI1
GND
UI2
8
9
10
11
TN
T02
RO4
IN4
THERM.
ELECTR.
HEAT
REHEATER
7
24 25 26
RS485-1
COACH NX
EAGLEHAWK NX
J1
J8
1
2
OCCUPANCY
CONTACT
BACnet MS/TP
36
38
39
40
41
GND
UI4
C1+
C1-
13
14
15
16
17
18
19
RN
IN1
RO1
IN2
RO2
IN3
RO3
3-SPEED
N
FIN
FAN
N
L
RS485-1
COACH NX
EAGLEHAWK NX
J1
J8
3
1
2
OCCUPANCY
CONTACT
BACnet MS/TP
37
38
39
40
41
UI3
GND
UI4
C1+
C1-
12
13
14
15
16
17
18
19
RN
RN
IN1
RO1
IN2
RO2
IN3
RO3
3-SPEED
FAN
EN1Z-1035GE51 R0420
27 28 29 30 31 32
42
GND
8 7 6 5 4 3 2 1
RJ45 INTERFACE
7 8
4
2,3,
5,6
24 25 26
27 28 29 30 31 32
42
GND
8 7 6 5 4 3 2 1
RJ45 INTERFACE
7 8
4
2,3,
5,6

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