Honeywell CENTRA LINE MERLIN NX Series Installation and operation manual

MERLIN NX Room Controller
Installation &
Commissioning
Instructions
® U.S. Registered Trademark
Copyright © 2020 Honeywell Inc. • All Rights Reserved EN1Z-1035GE51 R0420
GENERAL INFORMATION
Fig. 1. CLMERxxN (without optional covers)
BEFORE INSTALLATION
IMPORTANT
It is recommended that the unit be kept at room
temperature for at least 24 hours before applying
power; this is to allow the evaporation of any
condensation resulting from low shipping / storage
temperatures.
US requirement, only: This device must be installed in
a UL-listed enclosure offering adequate space to
maintain the segregation of line voltage field wiring
and Class 2 field wiring.
CAUTION
To avoid electrical shock or equipment damage, you
must switch OFF the power supply before attaching /
removing connections to/from any terminals.
Table 1. Overview of models
OS no.:
CLMER…
power
supply AOs UIs BIs relays(A triacs(B total no. of I/Os remarks
large housing
(198 x 110 x 57.5
mm)
RL4N 230 VAC 6 10 0 4 4 24 24-hr data retention
RL6N 24 VAC 6 10 0 4 4 24 24-hr data retention
RL8N 230 VAC 6 6(C 4
(D 4 4 24
24-hr data retention; supports switch
inputs with 24 V pull-up for connection of
standard light switches; preferred model
for light and blinds control
small housing
(162 x 110 x 57.5
mm)
RS4N 230 VAC 4 4 0 4 2 14 24-hr data retention
RS5N 24 VAC 4 4 0 4 2 14 24-hr data retention
(A See also section "Relay Outputs" on pg. 22.
(B See also section "Triac Current Limitations" on pg. 22.
(C Of this model's six UIs, only two UIs support NTC; this model is thus not suitable for the hardwiring of wall modules requiring
three UIs supporting NTC.
(D This model's four binary-only inputs are labelled as UI1-UI4.
CPU: 32-bit MK24FN Freescale Kinetis Cortex M4

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-1035GE51 R0420 2
DIMENSIONS AND MOUNTING
Housings
The controller is available in two housing sizes, both
conforming to IP20:
▪ RLxN (large housing):
W x L x H = 110 x 198 x 59 mm and
▪ RSxN (small housing):
W x L x H = 110 x 162 x 59 mm
See also Fig. 2 and Fig. 3.
57
3.5
59
45
10
10
110
53.5
59
52
REMOVABLE
TERMINALS
24-V
MODELS
198
230-V
MODELS
2
N
3
24V~
7
TN
8
T~
9
T01
10
TN
11
T02
12
T03
13
TN
14
T04
15
RC4
16
RO4
17
IN4
18
RN
19
RN
20
IN1
21
RO1
22
IN2
23
RO2
24
IN3
25
RO3
4
24V0
5
24V~
6
24V0
1
L
26
C2+ GND
28
24V~
2927
C2- WM1
30
WM2
31
3832
A
O1
34
A
O2
36
A
O3
A
O4
40
A
O5
42
A
O6
33
GND
35
24V~
37
GND
39
24V~
41
GND
43
24V~
44
24V~
46
GND
48
UI2
50
UI3
52
GND
54
UI6
56
UI7
58
GND
60
UI10
45
LED
47
UI1
49
GND
51
UI4
53
UI5
55
GND
57
UI8
59
UI9
61
GND
62
C1+
63
C1- GND
64
BACnet MS/TP
SERVICE
Fig. 2. RLxN dimensions (in mm)
NOTE: In the case of the RL5N, all of the terminal blocks
are removable.
57 59
3.5
45
110
10
10
REMOVABLE
TERMINALS
162
7
T01
8
TN
9
T02
1
L
2
N
3
24V~
4
24V0
5
TN
6
T~
10
RO4
11
IN4
12
RN
13
RN
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
WM1
20
C2+
23
C2-
24
WM2
21
34
UI1
36
UI2
37
UI3
39
UI4
35
GND
38
GND
26
A
O1
27
24V~
28
GND
29
A
O2
30
A
O3
31
24V~
32
GND
33
A
O4
41
C1-
40
C1+ GND
42
BACnet MS/TP
SERVICE
22
24V~
25
GND
53.5
59
52
24-V
MODELS
230-V
MODELS
Fig. 3. RSxN dimensions (in mm)
The unit is suitable for mounting on a standard rail, on walls,
as well as in wiring cabinets or fuse boxes.
Terminal Protection Covers for IP30
In the case of controllers mounted outside of a cabinet,
before applying power to the device, Terminal Protection
Covers (10-pc. bulk packs, order no.: IRM-RLC for large
housings and IRM-RSC for small housings) must be mounted
so as to provide IP30.
161.65
198
54
58.32558.325
54
59
IRM-RLC
(BULK PACK, 10 pcs.)
RLxNRLxN
Fig. 4. Large housing, with terminal protection covers,
dimensions (in mm)
161.65
54
58.32558.325
54
59
IRM-RSC
(BULK PACK, 10 pcs.)
RSxNRSxN
162
Fig. 5. Small housing, with terminal protection covers,
dimensions (in mm)
DIN Rail Mounting/Dismounting
MOUNTING DISMOUNTING
1. 1. 2. 2.
DIN EN 50022-35 x 7,5 RLxN: 2X
RSxN: 1X
Fig. 6. Mounting and dismounting
The unit can be mounted onto the DIN rail simply by snapping
it into place. It is dismounted by gently pulling the stirrup(s)
located at the base of the housing (see Fig. 6). When
mounted vertically on a DIN rail, the unit must be secured in
place with a stopper to prevent sliding.

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
3 EN1Z-1035GE51 R0420
Wall Mounting/Dismounting
The unit can be mounted on floors, walls, and ceilings in any
desired orientation. (See also section "Ambient
Environmental Limits" on pg. 27 for temperature range
restrictions with floor/ceiling mounting.)
The unit is mounted by inserting optional screws
(recommended: DIN EN ISO 7049 – ST4,2x22 – C – H)
through the corresponding screwing noses.
99.5
RLxN: 187.5
RSxN: 151.5
DIN EN ISO 7049 – ST4,2x22 – C – H
7
T01
8
TN
9
T02
1
L
2
N
3
24V~
4
24V0
5
TN
6
T~
10
RO4
11
IN4
12
RN
13
RN
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
WM1
20
C2+
23
C2-
24
WM2
21
34
UI1
36
UI2
37
UI3
39
UI4
35
GND
38
GND
26
AO1
27
24V~
28
GND
29
AO2
30
AO3
31
24V~
32
GND
33
AO4
41
C1-
40
C1+ GND
42
BACnet MS/T P
SERVICE
22
24V~
25
GND
Fig. 7. Drilling template (view from above)
After mounting the unit onto the wall, snap the appropriate
terminal protection covers (see Fig. 4 and Fig. 5 on pg. 2) into
place onto the housing by hand.
NOTE: In the case of wall-mounting, optional terminal pro-
tection covers (in the case of the RLxN [large
housings]: IRM-RLC; in the case of the RSxN [small
housings]: IRM-RSC) must be installed in order to
comply with IP30.
The covers can be fixed into place using optional screws
(recommended: DIN EN ISO 7049 – ST2,9x9,5 – C (F) – H).
To remove a cover, place a screwdriver in the two leverage
slots (marked with arrows) and pry it loose.
TERMINAL ASSIGNMENT
General
For a complete list of all terminals and a description of their
functions, see Table 2 and Table 6.
NOTE: All terminal blocks capable of carrying either low
voltage or line voltage are orange-colored.
The delivery includes a plastic bag containing additional,
removable terminal blocks for BACnet MS/TP and Sylk
interfaces.
The controller is powered by 230 VAC, and is equipped with
differing numbers of triac outputs, relay outputs, etc. capable
of being configured in a variety of ways. See Table 1 on page
1.
Every controller features a terminal assignment label on the
top of the housing.
Power Supply Terminals
▪ Power is supplied via an orange-colored fixed screw-type
terminal block (terminals 1+2).
See also section "Power Supply" on pg. 11.
Input / Output Terminals
The controller features rows of terminal blocks on the top and
bottom.
▪ In the case of the RLxN (large housing), the controller has
double rows of analog outputs (AOs) and universal inputs
(UIs) at the top and a single row of binary outputs (BOs) –
triacs (TRs) and relay outputs (ROs) – at the bottom.
▪ In the case of the RSxN (small housing), the controller
has a single row of analog outputs (AOs) and universal
inputs (UIs) at the top and a single row of binary outputs
(BOs) – triacs (TRs) and relay outputs (ROs) – at the
bottom.
NOTE: According to VDE guidelines, it is not allowed to mix
low-voltage and high-voltage signals on the relays
and triacs.
See also section "I/O Terminals" on pg. 22.
Communication Interfaces
All models of the controller feature the following communi-
cation interfaces:
▪ A Sylk Bus interface (RSxN: terminals 20 and 21; RLxN:
terminals 30 and 31), for connection to TR40x/42x Wall
Modules;
▪ An isolated RS485 interface (RS485-1) for use with
BACnet MS/TP (RSxN: terminals 40, 41, and 42; RLxN:
terminals 62, 63, and 64);
▪ An RJ45 connector for connection of the BACnet WiFi
Adapter;
▪ A non-isolated RS485 interface (RS485-2), for use with
Modbus (RSxN: terminals 23, 24, and 25; RLxN: terminals
26, 27, and 28).

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-1035GE51 R0420 4
Table 2. RSxN Room Controller: Overview of terminals and functions
term. printing function RS4N RS5N
1, 2 "L", "N" 230-V power supply X --
3, 4 "24V~", "24V0" Removable 24-V power supply input and aux. output voltage (24 VAC)
for all triacs X --
3, 4 "24V~", "24V0" Aux. output voltage (24 VAC) for all triacs -- X
5 "TN" Aux. term. for triac neutral wiring (internally connected with terminal 8) X X
6 "T~" Triac input voltage (24 VAC / 230 VAC) for all triacs; triac-switched X X
7 "T01" Triac-switched output X X
8 "TN" Aux. term. for triac neutral wiring (internally connected with terminal 5) X X
9 "T02" Triac-switched output X X
10, 11 "RO4", "IN4" Output of Relay 4, Input for Relay 4 type 2 type 2
12, 13 "RN", "RN" Aux. terminals for relay neutral wiring X X
14, 15 "IN1", "RO1" Input for Relay 1, Output of Relay 1 type 1 type 1
16, 17 "IN2", "RO2" Input for Relay 2, Output of Relay 2 type 1 type 1
18, 19 "IN3", "RO3" Input for Relay 3, Output of Relay 3 type 1 type 1
20, 21 "WM1", "WM2" Removable interface for Sylk Bus X X
22, 25 "24V~", "24V0" Removable aux. power (24 VAC 20%, 50/60 Hz) X X
23, 24, 25 "C2+", "C2-", "24V0" Removable RS485 Modbus interface + corresponding GND X X
26 "AO1" Analog Output 1 type 2 type 2
27 "24V~" 24 VAC power for field devices X X
28 "GND" Ground for AOs X X
29 "AO2" Analog Output 2 type 1 type 1
30 "AO3" Analog Output 3 type 1 type 1
31 "24V~" 24 VAC power for field devices X X
32 "GND" Ground for AOs X X
33 "AO4" Analog Output 4 type 1 type 1
34 "UI1" Universal Input 1 type 1 type 1
35 "GND" Ground for UIs X X
36 "UI2" Universal Input 2 type 1 type 1
37 "UI3" Universal Input 3 type 1 type 1
38 "GND" Ground for UIs X X
39 "UI4" Universal Input 4 type 1 type 1
40, 41, 42 "C1+", "C1-", "GND" Removable BACnet MS/TP interface and corresponding GND X X
Relay output types: See Table 3. Universal input types: See Table 4. Analog output types: See Table 5.
Table 3. Relay output types and characteristics
type 1 (standard) type 2 (high in-rush current)
corresponding ROs of RSxN RO1, RO2, RO3 RO4
corresponding ROs of RLxN RO2, RO3 RO1, RO4
contact N.-O. N.-O.
min. load 5 VAC, 100 mA 24 VAC, 40 mA
switching voltage range 15 … 253 VAC 15 … 253 VAC
max. continuous load at 250 VAC (cos φ = 1) 4 A 10 A
max. continuous load at 250 VAC (cos φ = 0.6) 4 A 10 A
in-rush current (20 ms) -- 80 A
usage fan motor light switching and fan motor
NOTE: The max. sum load of all relay currents at the same time is 14 A.

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
5 EN1Z-1035GE51 R0420
Table 4. Universal input types and characteristics
type 1 type 2 type 3
UI1, UI2, UI3,
UI4, UI5, UI6
UI7, UI8, UI9,
UI10
UI1, UI2, UI3,
UI4 (RL8N,
only)
dry contact (closed: res. <10 kΩ; open: res. > 20 kΩ; max. 0.2 Hz;
pull-up voltage: 10 V) X X --
dry contact (closed: res. <10 kΩ; open: res. > 20 kΩ; max. 0.2 Hz;
pull-up voltage: 24 V) -- -- X
fast binary (=counter) input (max. 30 Hz; pulse ON = min. 16 ms; pulse
OFF = min. 16 ms; closed: voltage < 1 V; open: voltage > 5 V; pull-up
voltage: 10 V)
X X --
fast binary (=counter) input (max. 30 Hz; pulse ON = min. 16 ms; pulse
OFF = min. 16 ms; closed: voltage < 1 V; open: voltage > 5 V; pull-up
voltage: 24 V)
-- -- X
0(2) … 10 V X X --
NTC20kΩ X -- --
SetPoint and FanSpdSW (from CLCM1T,2T,4T,5T,6T111) X -- --
NTC10kΩ X -- --
PT1000 + Ni1000TK5000 -- X --
Table 5. Analog output types and characteristics
type 1 type 2 type 3 type 4 type 5
output voltage 0…11 V
output current 0…1 mA 0…5 mA 0…10 mA 0…20 mA -1…+1 mA
min. accuracy ±150 mV
max. ripple ±100 mV
accuracy at zero point 0…200 mV ±150 mV

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-1035GE51 R0420 6
Table 6. RLxN Room Controllers: Overview of terminals and functions (by model)
term. printing function RL4N RL6N RL8N
1, 2 "L", "N" 230-V power supply X -- X
3, 4 "24V~", "24V0" Removable 24-V power supply input -- X --
5, 6 "24V~", "24V0" Aux. output voltage (24 VAC) for all triacs X X X
7 "TN" Aux. terminal for triac neutral wiring (internally connected with terminals 10
+ 13) X X X
8 "T~" Triac input voltage (24 VAC / 230 VAC) for all triacs; triac-switched X X X
9 "T01" Triac-switched output X X X
10 "TN" Aux. terminal for triac neutral wiring (internally connected with terminals 7 +
13) X X X
11 "T02" Triac-switched output X X X
12 "T03" Triac-switched output X X X
13 "TN" Aux. terminal for triac neutral wiring (internally connected with terminals 7 +
10) X X X
14 "T04" Triac-switched output X X X
15 "RC4" Not used. -- -- --
16, 17 "RO4", "IN4" Output of Relay 4, Input for Relay 4 type 2 type 2 type 2
18 "RN" Aux. terminal for relay neutral wiring X X X
19 "RN" Aux. terminal for relay neutral wiring X X X
20, 21 "IN1", "RO1" Input for Relay 1, Output of Relay 1 type 2 type 2 type 2
22, 23 "IN2", "RO2" Input for Relay 2, Output of Relay 2 type 1 type 1 type 1
24, 25 "IN3", "RO3" Input for Relay 3, Output of Relay 3 type 1 type 1 type 1
26, 27, 28 "C2+", "C2-", "24V0" Removable RS485 Modbus interface and corresponding GND X X X
28, 29 "24V0", "24V~" Removable aux. power (24 VAC ±20%, 50/60 Hz) X X X
30, 31 "WM1", "WM2" Removable interface for Sylk Bus X X X
32 "AO1" Analog Output 1 type 3 type 3 type 4
33 "GND" Ground for AOs X X X
34 "AO2" Analog Output 2 type 3 type 3 type 3
35 "24V~" 24 VAC power for field devices X X X
36 "AO3" Analog Output 3 type 1 type 1 type 5
37 "GND" Ground for AOs X X X
38 "AO4" Analog Output 4 type 1 type 1 type 5
39 "24V~" 24 VAC power for field devices X X X
40 "AO5" Analog Output 5 type 1 type 1 type 1
41 "GND" Ground for AOs X X X
42 "AO6" Analog Output 6 type 1 type 1 type 1
43 "24V~" 24 VAC power for field devices X X X
44 "24V~" 24 VAC power for field devices X -- X
45 "LED" Output to LED of CLCM4T,5T,6T111 -- -- X
46 "GND" Ground for UIs X X X
47 "UI1" Universal Input 1 type 1 type 1 type 3 (BI)
48 "UI2" Universal Input 2 type 1 type 1 type 3 (BI)
49 "GND" Ground for UIs X X X
50 "UI3" Universal Input 3 type 1 type 1 type 3 (BI)
51 "UI4" Universal Input 4 type 1 type 1 type 3 (BI)
52 "GND" Ground for UIs X X X
53 "UI5" Universal Input 5 type 1 type 1 type 1
54 "UI6" Universal Input 6 type 1 type 1 type 1
55 "GND" Ground for UIs X X X
56 "UI7" Universal Input 7 type 2 type 2 type 2
57 "UI8" Universal Input 8 type 2 type 2 type 2
58 "GND" Ground for UIs X X X
59 "UI9" Universal Input 9 type 2 type 2 type 2
60 "UI10" Universal Input 10 type 2 type 2 type 2
61 "GND" Ground for UIs X X X
62, 63, 64 "C1+", "C1-", "GND" Removable BACnet MS/TP interface and corresponding GND X X X
Relay output types: See Table 3. Universal input types: See Table 4. Analog output types: See Table 5.

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
7 EN1Z-1035GE51 R0420
26
AO1
32
GND
34
UI1
36
UI2
29
AO2
30
AO3
PROP.
COOL
THERM.
COOL
THERM.
HEAT
ELECTR.
REHEATER
3-SPEED
FAN
PROP.
HEAT
1
L
2
N
5
TN
6
T~
7
T01
8
TN
9
T02
NL NTIN RIN NN FIN
10
RO4
11
IN4
12
RN
13
RN
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
OCCUPANCY
CONTACT
28
GND
27
24V~
31
24V~
39
UI4
38
GND
40
C1+
23
C2+
41
C1-
24
C2-
42
GND
3
24V~
4
24V0
230 V
F1* LINE VOLTAGE
N N
L L
*OPTIONAL FUSE (TO PROTECT CONTROLLER‘S INTERNAL
TRANSFORMER, WHICH HAS ONLY A NON-RESETTABLE FUSE).
20
WM1
21
WM2
22
°C
8 7 6 5 4 3 2 1
RJ45 INTERFACE
7 8
2,3,
5,6
4
BACnet MS/TP
22
24V~
25
24V0
35
GND
LIGHT
I/O
COACH NX
24 25 26 27 28 29 30 31 32
24V-0
24V~
1
GND1
485-1+
485-1-
n.a. n.a.
GND2
485-2+
485-2-
n.a.
2
J1 J8
RS232 RS485-1
END BIAS MID
EAGLEHAWK NX
CLCMTR40x/TR42x
WALL MODULE
Fig. 8. RS4N example wiring (230-V model)
32
GND
34
UI1
36
UI2
37
UI3
1
TEMP
2
SETP
33
A
O4
THERM.
COOL
THERM.
HEAT
5
TN
31
24V~
39
UI4
35
GND
38
GND
40
C1+
41
C1-
42
GND
24V~
GND
0...10V
24V~
24V0
N L
ELECTR.
REHEATER
3-SPEED
FAN
10
RO4
11
IN4
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
3
24V~
4
24V0
1
L
2
N
NL
6
T~
7
T01
8
TN
9
T02
12
RN
13
RN
3
COM
22
°C
230 V
LINE VOLTAGE
F1
20
WM1
21
WM2
26
AO1
28
GND
27
24V~
PROP.
DAMPER
ACTUATOR
BACnet MS/TP
8 7 6 5 4 3 2 1
RJ45 INTERFACE
7 8
2,3,
5,6
4
OCCUPANCY
CONTACT
22
24V~
23
C2+
24
C2-
LIGHT
I/O
25
24V0
COACH NX
24 25 26 27 28 29 30 3 1 32
24V-0
24V~
1
GND1 485-1+
485-1-
n.a. n.a.
GND2
485-2+
485-2-
n.a.
2
J1 J8
RS232 RS485-1
END BIAS MID
EAGLEHAWK NX
CLCM2T WALL MODULE
CLCMTR40x/TR42x
WALL MODULE
Fig. 9. RS4N example wiring (230-V model) (with actuator powered by extra transformer)

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-1035GE51 R0420 8
8 7 6 5 4 3 2 1
RJ45 INTERFACE
26
AO1
32
GND
34
UI1
36
UI2
1
TEMP
2
SETP
29
AO2
30
AO3
PROP.
COOL
THERM.
COOL
THERM.
HEAT
ELECTR.
REHEATER
3-SPEED
FAN
PROP.
HEAT
5
TN
N
NTIN
L
RIN NN FIN
10
RO4
11
IN4
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
28
GND
31
24V~
39
UI4
35
GND
38
GND
40
C1+
41
C1-
42
GND
7 8
2,3,
5,6
4
4
24V0
6
T~
7
T01
8
TN
9
T02
12
RN
13
RN
3
COM
LINE VOLTAGE F1 LINE VOLTAGE
N NL L
BACnet MS/TP
OCCUPANCY
CONTACT
22
24V~
27
24V~
3
24V~
25
24V0
23
C2+
24
C2-
LIGHT
I/O
20
WM1
21
WM2
22
°C
CLCM2T WALL MODULE
24 25 26 27 28 29 30 31 32
24V-0
24V~
1
GND1
485-1+
485-1-
n.a. n.a.
GND2
485-2+
485-2-
n.a.
2
J1 J8
RS232 RS485-1
END BIAS MID
EAGLEHAWK NX
COACH NX
CLCMTR40x/TR42x
WALL MODULE
Fig. 10. RS5N example wiring (24-V model)
8 7 6 5 4 3 2 1
RJ45 INTERFACE
20
WM1
21
WM2
26
AO1
32
GND
34
UI1
36
UI2
37
UI3
1
TEMP
2
SETP
33
A
O4
THERM.
COOL
THERM.
HEAT
5
TN
28
GND
27
24V~
31
24V~
39
UI4
35
GND
38
GND
40
C1+
41
C1-
42
GND
7 8
2,3,
5,6
4
24V~
0...10V
ELECTR.
REHEATER
3-SPEED
FAN
10
RO4
11
IN4
14
IN1
15
RO1
16
IN2
17
RO2
18
IN3
19
RO3
4
24V0
NL
24V~
24V0
N L
6
T~
7
T01
8
TN
9
T02
12
RN
13
RN
3
COM
22
°C
LINE VOLTAGE
LINE VOLTAGE
F1
PROPORT.
DAMPER
ACTUATOR
GND
BACnet MS/TP
OCCUPANCY
CONTACT
22
24V~
23
C2+
24
C2-
LIGHT
I/O
25
24V0
3
24V~
CLCMTR40x/TR42x
WALL MODULE
24 25 26 27 28 29 30 31 32
24V-0
24V~
1
GND1 485-1+
485-1-
n.a. n.a.
GND2
485-2+
485-2-
n.a.
2
J1 J8
RS232 RS485-1
END BIAS MID
EAGLEHAWK NX
COACH NX
CLCM2T WALL MODULE
Fig. 11. RS5N example wiring (24-V model) (with actuator powered by extra transformer)

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
9 EN1Z-1035GE51 R0420
8 7 6 5 4 3 2 1
RJ45 INTERFACE
30
WM1
31
WM2
32
AO1
43
24V~
44
24V~
41
GND
46
GND
48
UI2
50
UI3
52
GND
54
UI6
56
UI7
58
GND
60
UI10
1
COM
2
TEMP
3
SETP
4
BYP
6
NC
7
NC
47
UI1
49
GND
51
UI4
53
UI5
55
GND
57
UI8
59
UI9
61
GND
34
AO2
40
AO5
42
AO6
PROP.
COOL
THERM.
HEAT
FLOATING
COOL
ELECTR.
REHEATER
3-SPEED
FAN
24VAC
OUTPUT
PROP.
HEAT
Pt1000
1
L
2
N
5
24V~
6
24V0
7
TN
NL NTIN RIN NN FIN
16
RO4
17
IN4
8
T~
9
T01
10
TN
11
T02
12
T03
13
TN
14
T04
18
RN
19
RN
20
IN1
21
RO1
22
IN2
23
RO2
24
IN3
25
RO3
OCC. CONTACT
7 8
2,3,
5,6
5
LED
62
C1+
63
C1-
64
GND
BACnet MS/TP
4
22
°C
230 V F1*
*OPTIONAL FUSE (TO PROTECT CONTROLLER‘S INTERNAL
TRANSFORMER, WHICH HAS ONLY A NON-RESETTABLE FUSE).
LINE VOLTAGE
N NL L
29
24V~
39
24V~
35
24V~
37
GND
33
GND
26
C2+
27
C2-
LIGHT
I/O
28
24V0
BACnet WiFi
ADAPTER
RJ45
PLUG
COACH NX
CLCMTR40x/TR42x
WALL MODULE
CLCM4T,5T,6T111 WALL MODULE
Fig. 12. RL4N (230-V model) example wiring
2
TEMP
3
SETP
4
BYP
6
NC
7
NC
5
LED
8 7 6 5 4 3 2 1
RJ45 INTERFACE
30
WM1
31
WM2
32
AO1
33
GND
35
24V~
39
24V~
43
24V~
44
24V~
37
GND
41
GND
46
GND
48
UI2
50
UI3
52
GND
54
UI6
56
UI7
58
GND
60
UI10
47
UI1
49
GND
51
UI4
53
UI5
55
GND
57
UI8
59
UI9
61
GND
34
AO2
40
AO5
42
AO6
THERM.
HEAT
FLOATING
COOL
ELECTR.
REHEATER
3-SPEED
FAN
Pt1000
24V~
24V0
5
24V~
6
24V0
7
TN
N L
16
RO4
20
IN1
21
RO1
22
IN2
23
RO2
24
IN3
25
RO3
OCC. CONTACT
7 8
2,3,
5,6
62
C1+
63
C1-
64
GND
BACnet MS/TP
4
17
IN4
1
L
2
N
NL
8
T~
9
T01
10
TN
11
T02
12
T03
13
TN
14
T04
18
RN
19
RN
1
COM
22
°C
24V~
GND
0...10V
LINE VOLTAGE
230 V
F1
PROPORT.
DAMPER
ACTUATOR
29
24V~
26
C2+
27
C2-
LIGHT
I/O
28
24V0
BACnet WiFi
ADAPTER
RJ45
PLUG
COACH NX
CLCM4T,5T,6T111 WALL MODULE
CLCMTR40x/TR42x
WALL MODULE
Fig. 13. RL4N (230-V model) example wiring (with actuator powered by extra transformer)

MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-1035GE51 R0420 10
2
TEMP
3
SETP
4
BYP
6
NC
7
NC
5
LED
8 7 6 5 4 3 2 1
RJ45 INTERFACE
30
WM1
31
WM2
32
AO1
33
GND
35
24V~
43
24V~
41
GND
46
GND
48
UI2
50
UI3
52
GND
54
UI6
56
UI7
58
GND
60
UI10
47
UI1
49
GND
51
UI4
53
UI5
55
GND
57
UI8
59
UI9
61
GND
34
AO2
40
AO5
42
AO6
THERM.
HEAT
FLOATING
COOL
ELECTR.
REHEATER
3-SPEED
FAN
Pt1000
1
L
2
N
5
24V~
6
24V0
7
TN
NL
NTIN RIN NN FIN
16
RO4
17
IN4
20
IN1
21
RO1
22
IN2
23
RO2
24
IN3
25
RO3
7 8
2,3,
5,6
62
C1+
63
C1-
64
GND
BACnet MS/TP
4
BACnet WiFi
ADAPTER
8
T~
9
T01
10
TN
11
T02
12
T03
13
TN
14
T04
18
RN
19
RN
1
COM
22
°C
F1
230 V LINE VOLTAGE
N NL L
OCC. CONTACT
44
24V~
PROP.
COOL
PROP.
HEAT
37
GND
39
24V~
29
24V~
26
C2+
27
C2-
LIGHT
I/O
28
24V0
RJ45
PLUG
COACH NX
CLCM4T,5T,6T111 WALL MODULE
CLCMTR40x/TR42x
WALL MODULE
Fig. 14. RL4N (230-V model) example wiring
2
TEMP
3
SETP
4
BYP
6
NC
7
NC
5
LED
8 7 6 5 432 1
RJ45 INTERFACE
43
24V~
41
GND
46
GND
48
UI2
50
UI3
52
GND
54
UI6
56
UI7
58
GND
60
UI10
47
UI1
49
GND
51
UI4
53
UI5
55
GND
57
UI8
59
UI9
61
GND
40
AO5
42
AO6
THERM.
HEAT
FLOATING
COOL
ELECTR.
REHEATER
3-SPEED
FAN
Pt1000
5
24V~
4
24V0
6
24V0
7
TN
NTIN RIN NN FIN
16
RO4
17
IN4
20
IN1
21
RO1
22
IN2
23
RO2
24
IN3
25
RO3
OCC. CONTACT
7 8
2,3,
5,6
62
C1+
63
C1-
64
GND
BACnet MS/TP
4
8
T~
9
T01
10
TN
11
T02
12
T03
13
TN
14
T04
18
RN
19
RN
NL
1
COM
F1
LINE VOLTAGE LINE VOLTAGE
N NL L
44
24V~
BACnet WiFi
ADAPTER
RJ45
PLUG
30
WM1
31
WM2
32
AO1
34
AO2
22
°C
PROP.
COOL
PROP.
HEAT
29
24V~
26
C2+
27
C2-
LIGHT
I/O
37
GND
39
24V~
33
GND
35
24V~
28
24V0
3
24V~
COACH NX
CLCM4T,5T,6T111 WALL MODULE
CLCMTR40x/TR42x
WALL MODULE
Fig. 15. RL6N (24-V model) example wiring