55
Terminals
Function
Explanation
X3.8
X3.9
Frost stat and/or contact
humidistat
or
Jumper
Floating contact required:
■ Closed: Continuous safety chain
■ Open: Safety chain interrupted; heat
pump shut down
■ Breaking capacity 230 V~, 0.15 A
Connect on site:
■ Remove jumper when making this con-
nection
■ Connected in series if both safety com-
ponents are installed
X3.18
Heat pump control unit
power supply:
Phase L1
X1.1 Earth conductor
connection
X2.1 Neutral conductor
connection
Connect to 230 V~ power supply on site.
Controller and sensor PCB
Set the required parameters during com-
missioning; see from page 81.
■
Plugs F11, F17:
Connect
nothing
on site to plugs F11
and F17.
Sensors
Plugs
Sensor
Type
F0
Outside temperature sensor; connect on site
Ni 500
(PTC)
F4
(X5.6/X5.7)
Buffer temperature sensor, top; connect on site
Pt 500
(PTC)
F13
System flow temperature sensor (with sensor well, down-
stream of heating water buffer cylinder); connect on site
Pt 500
(PTC)
F14
Flow temperature sensor, cooling circuit (direct heating
circuit A1 or separate cooling circuit); connect on site
Ni 500
(PTC)
F16
Room temperature sensor for separate cooling circuit
(required) or for direct heating/cooling circuit (recommen-
ded); connect on site
Ni 500
(PTC)
Installation sequence
Electrical connection
(cont.)
5600 950 GB
Installation
