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Millbrook House, Grange Drive, Hedge End, Southampton, SO30 2DF
0844 879 3587
dimplex.co.uk | gdcgroup.co.uk
53
6.10 Wiring centre electrical congurations - with A Class cylinder
LLLLLLLL
SH Zone 1 - Valve
NTC-Zone4
NTC-Zone3
NTC-Zone2
NTC-Zone1
NTC-DHW
DI 01
DI 03
DI 04
DI 05
DI 02
B'
A'
Common
B
A
0Volt Comm
+12V
+230V Comm
+230V Comm
Relay-8
Relay-7
Relay-6
Relay-5
Relay-4
Relay-3
Relay-2
Relay-1
EARTH
NEUTRAL
LIVE
MAINS
POWER
Modbus
Status
MODBUS
SD
System
Status
Circulating Pump
BELDEN 9842 Modbus In
BLACK
BROWN
NEUTRAL
EARTH
230V Supply
N
P
L
L
ZONE PUMPS, IF REQUIRED, NEED A SUITABLE EXTERNAL
RELAY TO BE INSTALLED TO ENERGISE THE PUMP.
PUMPS CANNOT BE POWERED DIRECTLY FROM PCB RELAYS
(1 - 8 ).
A 16A HI-INRUSH RELAY NEEDS TO BE USED.
BELDEN 9842 Modbus Out
DI 01 & DI 02
NOT IN USE
DHW/SH Valve
WHITE / blue
EARTH SHIELD
WHITE / Orange
BLUE / white
CONNECTIONS ARE LOCATED INSIDE THE UI CASING
(SEE BELOW)
WHITE / orange
ORANGE / white
BLUE / white
WHITE / blue
EARTH SHIELD
GND
+12V
A
B
S
CONNECTIONS ARE LOCATED INSIDE THE ELECTRICAL BOX IN THE HEAT PUMP
N
P
SH Zone 2 - Valve
L
N
P
SH Zone 3 - Valve
L
N
P
S
B
A
0V
230V SUPPLY
L
N
P
L
N
P
PWM Control Cable
(not used)
L
N
P
L
NOTE: DIGITAL INPUTS (DI01 - DI05) ARE
VOLT FREE. IF ANY VOLTAGE (SUCH AS A
SWITCH LIVE 230V) IS CONNECTED,
IRREPARABLE DAMAGE WILL BE CAUSED TO
THE WIRING CENTRE.
NOTE: THE PRIMARY PUMP UMP GEO 25-85 180 HAS AN EXTRA
PWM CABLE. THIS CABLE IS FOR AN EXTRA FUNCTION THAT IS
NOT CURRENTLY AVAILABLE AND SHOULD BE LEFT
ELECTRICALLY SAFE.
DHW/SH Valve
DHW/SH Valve
Circulating Pump
2A Fuse
4A Fuse
4A Fuse
4A Fuse
X1
N Block
(BLUE)
X1
E Block
(GREEN)
WARNING:
SCREENS FROM BOTH COMMUNICATION (MODBUS)
CABLES MUST BE GROUNDED/EARTHED
SH Zone 4 - Valve
L
N
P
OPTIONAL NTC ZONES
SEE CONTROLLER CABLE
CONNECTIONS DIAGRAM FOR
DETAILS
OPTIONAL DIGITAL OUTPUTS
SEE CONTROLLER CABLE
CONNECTIONS DIAGRAM FOR
DETAILS
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