Purmo H&C 24V Guide Utilisateur page 7

6. Wiring Installation2: Reversible Heat pump (with external heat&cool signal)
DIP switch B1 Cooling Output
Configuration
S1
Heating and
Managed by the
cooling output :
UFH digital
programmer in
accordance with the
heat pump signal.
On => only when
cooling demand from
minimum one zone
B2 Heating Output B3 Humidity
Drier
Managed by the Managed by the
UFH digital UFH digital
programmer in programmer and
accordance with the the 10k sensor if
heat pump signal. used
On => only when On => only when
cooling demand from humidity is detected.
minimum one zone
A B 1 HC Sen 2 4
TempCo Touch
Humidity sensor: (10k sensor)
Must be mounted on the incoming
water pipe of the manifold with
precautions.
B1 B2
NC NC
NC NC
24Vac 24Vac
24Vac 24Vac
Heat & Cool Input: (Free contact)
Open => The system will work in heat mode
Closed => The system will work in Cooling mode
UFH digital main
Check the heat pump output before
programmer zone
connection.
7
4 actuators max
DIP switch P1
Configuration S2 Humidity Level
Humidity 5 to 25 °C
sensor :
On : if used Setting level to
Off : if not used stop the cooling
output and start
the humidity drier.
B3
P2 Humidity
Detection Time
5 to 60min
Minimum time for
humidity
temperature
detection
P1
P2
S1
L N
HUMIDITY
DRIER