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We reserve the right to modify technical specifications without prior notice.
83054200fUK
© ait-deutschland GmbH
HEAT PUMP SIDE CONNECTION OF THE CONTROL AND
SENSOR WIRES
The heat pump is connected to the heating and heat
pump regulator by means of the control and sensor
wires. They are connected at the electric switch cabi-
net on the switch cabinet side (= operator side) of the
heat pump.
LW 71… / LW 81…:
Loosen mounting screws of the electric switch
cabinet inside the unit…
Suspend electric switch cabinet outside in the pro-
vided recesses of the frame…
ATTENTION
Do not tip electric switch cabinet.
LW 140… THROUGH LW 310…
AND LW 320H…:
1 Connection box for electric
heating element
2 Connection box for compressor
Connect power cable to the connection box
(Electric heating element with the LW 310A on-
site)…
Close connection box…
Install power cable in a conduit as far as where it
enters the building and from there on to the fuse
box…
Connect power cable to power supply.
ATTENTION
Ensure clockwise rotary field of the load power
supply (compressor).
–
An incorrect rotary field of the com-
pressor during operation can cause
serious, irreparable damage to the
compressor.
ATTENTION
The power supply for the heat pump must be
equipped with an all-pole miniature circuit-
breaker with at least 3 mm contact spacing to
IEC 60947-2.
Note the level of the release current.
Overview “Technical data/scope of delivery”,
“Electric” section.
ATTENTION
If using the unit in 3~230V systems, please note
that the residual-current circuit breaker (RCCB)
used must be AC-DC sensitive.
Summary of Contents for LW A Series
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