Danfoss WC4/B Installation guide

WC4/B Wiring Centre

Wiring Guide

Specification

Terminals:	23 way
Voltage Rating:	230 V 50/60Hz
Current Rating:	10A
Max cable size:	1.5mm2
Max. Ambient Temperature: 55°C
Enclosure Rating:	IP30
Pollution Control Situation: Normal
Dimensions:	170 mm wide
	130 mm high
	39 mm deep

Complies with BS6220

1.Fully Pumped System, 3-Port Mid-Position Valve.

3 2 N

Movable Links

Preformed (2 o )

Straight Solid Core (1 o each) - 1.5mm2 (BS6004),

ends trimmed 7mm.

45mm

70mm

80mm 105mm

The Danfoss Randall 23-way WC4/B Wiring Centre, suited to most popular heating/hot water systems, provides a systemised and tidy approach to wiring, particularly in respect of cable links and terminal numbers. It has some fixed and some movable links and is designed to be wall mounted, with cable entry from either the rear or through knock-outs in the rear. The following wiring connection information covers most popular domestic heating control systems.

																																						A. Permanent Links
																																						B. Links to be made by
1	2	3		4			5	6		7	8	9		10		11		12		13			14	15		16			L		N								installer
																															N 11							8 10 9
L		N								15		14				16

	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	RMT
	1	2	4
				230
	L	3	N	RET
				230
	L*	1	N	RET
				230P*
	COM	CALL	N

ROOM THERMOSTAT

*Link terminals L and Com in the RET230P for correct operation. (See thermostat instructions for further information).

**Refer to Boiler wiring information for boilers with pump overrun.

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<![if ! IE]> <![endif]>¨

L

N

1

2

3

MAINS SUPPLY

COM

CALL

SAT

(Fuse 3A)

ATC CYLINDER

THERMOSTAT

13

N

4

N

7

6

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<![if ! IE]> <![endif]>¨

L

N

Wh/

Blue

Gr.

Or.

Br.

HTG.

N

HW.

Sw.

** PUMP

L

OFF

L

L

N

12 HS3 MID-POS. VALVE

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<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

Perm

N

Sw.

L

L

** BOILER

PROGRAMMER	<![if ! IE]> <![endif]>¨					<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
						N	L	OFF	ON	ON	LINKS
								WATER		HTG
CP715 Si, FP715 Si	-					N	L	1	3	4	-
& TP9000
SET3M, SET 3E	-					N	L	3	1	4	L, 2 & 5
& FP975
SET2E	-					N	L	-	1	4	L-2, 1-5
102, 102E5, 102E7	-					N	L	-	1	2	L-3
4033						7	6	5	4	2	1-6
3060 & 3020P						7	6	-	4	2	-
TIMESWITCH		N.B. WHEN USING UNITS BELOW LINK 11-9 ON
WIRING CENTRE
103, 103E5, 103E7	-					N	L	-	1	-	L-3
TS715 Si	-					N	L	-	4	-	L-1
SET1E & TS975	-					N	L	-	4	-	L-5

2. Fully Pumped System,																																												A. Permanent Links
2 x 2-Port Spring Return
																																												B. Links to be made by
Zone Valves.ller
				1	2	3		4				5	6		7	8	9			10		11		12			13		14	15		16			L		N								installer
				L	N
3	2	N													4			N		6				7													N 11 10								9

	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	RMT
	1	2	4
				230
	L	3	N	RET
				230
	L*	1	N	RET
				230P*
	COM	CALL	N

ROOM THERMOSTAT

*Link terminals L and Com in the RET230P for correct operation. (See thermostat instructions for further information).

**Refer to Boiler wiring information for boilers with pump overrun.

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<![if ! IE]> <![endif]>¨

L

N

Brn.

Blue

Or.

Gr.

MAINS SUPPLY

Motor

N

OUT

IN.

(Fuse 3A)

L

Aux. Sw.

HP22, 2-PORT HTG VALVE

15

14

8

N

6

7

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<![if ! IE]> <![endif]>¨

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<![if ! IE]> <![endif]>¨

1

2

Brn.

Blue

Or.

Gr.

COM

CALL

Motor

N

OUT

IN.

L

Aux. Sw.

ATC CYLINDER

HP22, 2-PORT DHW VALVE

THERMOSTAT

L

N

12

13

N

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<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

Perm

N

Sw.

L

N

L

L

** BOILER

** PUMP

PROGRAMMER	<![if ! IE]> <![endif]>¨						<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
							N	L	ON	ON	LINKS
									WATER	HTG
CP715 Si, FP715 Si	-						N	L	3	4	-
& TP9000
SET3M, SET 3E	-						N	L	1	4	L, 2 & 5
& FP975
SET2E	-						N	L	1	4	L-2, 1-5
102, 102E5, 102E7	-						N	L	1	2	L-3
4033							7	6	4	2	1-6
3060 & 3020P							7	6	4	2	-
TIMESWITCH	N.B. WHEN USING UNITS BELOW LINK 11-9 ON
WIRING CENTRE
103, 103E5, 103E7	-						N	L	1	-	L-3
TS715 Si	-						N	L	4	-	L-1
SET1E & TS975	-						N	L	4	-	L-5

1

3. Fully Pumped System,

3 x 2-Port Spring Return

Zone Valves.

	3	2	N
	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
	1	2	4	RMT
				230
	L	3	N	RET
				230
	L*	1	N	RET
				230P*
	COM	CALL	N

ROOM THERMOSTAT (Zone 1)

	3	1	N
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	1	2	4	RMT
				230
	L	3	N	RET
				230
	L*	1	N	RET
				230P*
	COM	CALL	N

ROOM THERMOSTAT (Zone 2)

*Link terminals L and Com in the RET230P for correct operation. (See thermostat instructions for further information).

4.Gravity DHW and Pumped Heating,

one 2-Port Spring Return Zone Valve in DHW.

	3	2	N
	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
	1	2	4	RMT
				230
	L	3	N	RET
				230
	L*	1	N	RET
				230P*
	COM	CALL	N

ROOM THERMOSTAT (Zone 1)

*Link terminals L and Com in the RET230P for correct operation. (See thermostat instructions for further information).

1	2	3		4				5		6		7	8	9		10		11			12			13		14	15		16		L
L		N											4			N		6						7

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

LN

MAINS SUPPLY (Fuse 3A)

15

14

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

1

2

COM

CALL

ATC CYLINDER

THERMOSTAT

L

N

12

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

Perm

N

Sw.

L

L

**BOILER

**Refer to Boiler wiring information for boilers with pump overrun.

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Brn.	Blue	Or.	Gr.

Motor N OUT IN.

LAux. Sw.

HP22, 2-PORT HTG VALVE (Zone 1)

5	N	6	7
<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
Brn.	Blue	Or.	Gr.

Motor N OUT IN.

LAux. Sw.

HP22, 2-PORT HTG VALVE (Zone 2)

8	N	6	7
<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
Brn.	Blue	Or.	Gr.
Motor	N	OUT	IN.
L		Aux.	Sw.

HP22, 2-PORT DHW VALVE

13	N
<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨

LN

**PUMP

PROGRAMMER

CP715 Si, FP715 Si

&TP9000 SET3M, SET 3E

&FP975

SET2E

102, 102E5, 102E7 4033

3060 & 3020P

TIMESWITCH

WIRING CENTRE

103, 103E5, 103E7

TS715 Si

SET1E & TS975

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

L

N

15

8

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<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

L

N

1

2

PROGRAMMER

MAINS SUPPLY

COM

CALL

CP715 Si, FP715 Si

(Fuse 3A)

ATC CYLINDER

& TP9000

THERMOSTAT

SET3M, SET 3E

& FP975

5

N

7

N

4

14

13

SET2E

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<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

102, 102E5, 102E7

4033

L

N

Brn.

Blue

Wh.

Gr.

Or.

3060 & 3020P

Motor

N

N/C

N/O

COM

PUMP

TIMESWITCH

L

Aux. Sw.

HP28C DHW VALVE

WIRING CENTRE

103, 103E5, 103E7

L

N

12

TS715 Si

SET1E & TS975

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

<![if ! IE]> <![endif]>¨

Perm

N

L

L

BOILER

A.Permanent Links

B.Links to be made by

N			installer
	N	11	10	9
<![if ! IE]> <![endif]>¨ ¨ ¨			<![if ! IE]> <![endif]>¨	<![if ! IE]> <![endif]>¨
	N	L	ON	ON		LINKS
			WATER	HTG
-	N	L	3	4		-
-	N	L	1	4		L, 2 & 5
-	N	L	1	4		L-2, 1-5
-	N	L	1	2		L-3
	7	6	4	2		1-6
	7	6	4	2		-
N.B. WHEN USING UNITS BELOW LINK 11-9 ON
-	N	L		-		L-3
			1
-	N	L	4	-		L-1
-	N	L	4	-		L-5

											A. Permanent Links
	L										B. Links to be made
		N										by installer
	N	11	10								9
<![if ! IE]> <![endif]>¨ ¨ ¨			<![if ! IE]> <![endif]>¨								<![if ! IE]> <![endif]>¨
	N	L			ON						ON		LINKS
				WATER							HTG
-	N	L	3								4		-
-	N	L	1								4		L, 2 & 5
-	N	L	1								4		L-2, 1-5
-	N	L	1								2		L-3
	7	6	4								2		1-6
	7	6	4								2		-
N.B. WHEN USING UNITS BELOW LINK 11-9 ON
-	N	L	1								-		L-3
-	N	L	4								-		L-1
-	N	L	4								-		L-5

2