61
20.1.2
M
ASTER
U
NIT
W
IRING
The below wiring shows the wiring of the demand signal, temperature sensors, DHW three way valve and
immersion heater.
Drawing Number
Part Description
Q3
DHW Three Way Valve
Q4
DHW Secondary Circulation Pump
Q9
S-ASX Internal Circulating Pump (Pre-fitted & Wired)
K6
DHW Immersion Heater
B4
Thermal Store / Buffer Vessel Flow Temperature Sensor
B41
Thermal Store / Buffer Vessel Return Temperature Sensor
B10
Common Flow Temperature Sensor
B9
Outside Air Temperature Sensor
VK1
On / Off Demand Signal
B3
DHW Tank Temperature Sensor
20.1.3
S
LAVE
U
NIT
W
IRING
Apart from the communication wire between terminals MB & DB as shown within chapter 20.1.1, the only optional
external wiring is for a second operator unit to be installed.
Any operator unit installed within a slave heat pump is for information only. Such as showing current flow
temperatures, return temperatures and any fault codes with this slave heat pump.
Содержание S-ASX 30
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