Page 10
Operation and Maintenance
ThermoCooler HP
DSTCH.191101.01.EN
Continuous product development may give rise to specification changes without notice.
3
Wiring instructions
3.1 Power supply
The reversible heat pump is powered separately as shown in the diagram below.
For the recommended fuse protection, see "7 Technical data" page 19
.
L1
N
PE
L2
L3
8
2
4
6
7
MS1
1
3
5
POWER SUPPLY
3×400V~50Hz
NB!
A residual current circuit breaker should not be used since the unit has
a built-in frequency inverter.
In the event that the decision is nevertheless made to use a residual current
circuit breaker, we recommend a 300 mA, type B residual current circuit breaker
specially adapted for the frequency converter.
A 300 mA, type B residual current circuit breaker offers fire protection – not
personal protection.
3.2 Communication with Climatix
Communication with the air handling unit’s (Envistar Flex) Climatix control
system takes place via Modbus. The connection between Carel and Climatix is
made using a pre-installed quick connector.
Carel
J6
Modbus
Thermo-
Cooler HP
–
+
0
GND
Climatix
RS485
B-
A+
REF
Envistar Flex
control cabinet
Green
Yellow
Grey
Basic diagram showing communication between Carel and Climatix via Modbus