
18
5.5. Terminal block wiring connections
KEY:
PI
Central heating system pump
PR Recirculating
pump
(anti-condensation)
PB
DHW storage cylinder or buffer tank/combi
buffer tank pump
PPS
Solar panel pump
TA Room
thermostat
MP Door
micro
switch
VD Selector
valve
NOTE:
Contacts 16 and 17 (TA) are jumpered to allow
continuous operation of the system pump if the room
thermostat is not connected.
WARNING:
If a room thermostat is connected, remove the jumper
and make sure the two connectors are attached to the
device. Failure of the system pump to operate may be
due to incorrect wiring to the device or the device itself
being faulty. Make sure that the room thermostat
connection has a voltage-free contact.
The door micro switch is already fitted on the support;
simply connect the two wires to terminals 18 and 19.
Содержание GRA115RO
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