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We reserve the right to make technical changes.
83052300eUK © ait-deutschland GmbH
2.1
Basic wiring:
1 Connected 1~/N/PE/230 V power supply for wall-
mounted controller and outdoor unit
2 Connected TRL return sensor (on NTC8)
3 Laying cables in the cable ducts
4 Connected BUS communication cable
5 Connected PWM control signal for circulation pump
If necessary, install additional external cables…
Instruction manual for your appliance, “Connection
layout” and “Circuit diagrams” for your appliance
type
NOTICE
The inputs and outputs on the control board are
assigned as shown on the device’s terminal connec-
tion diagram. In addition, the assignment is shown
on the inside of the housing of the wall-mounted
controller.
Place covers on the cable ducts. Swivel folding bracket
of the cable entry back into the initial position and
allow to latch into place below the fastening screw.
Tighten fastening screw…
Put the housing cover back on and tighten the side fas-
tening screws.
ATTENTION
Route all lines that you connect to the heating and
heat pump control outside the heating and heat
pump in a cable duct (necessary for strain relief; to
be realised at the customer).
ATTENTION
The BUS communication cable must be laid at a
spacing > 10 cm from other cables. Therefore, lay
with the appropriate spacing in a separate cable
duct.
1 230 V power supply to the outdoor unit
2 PWM control signal for circulation pump
3 other 230 V outputs (circulation pumps, mixers,
etc.)
4 BUS communication cable to the outdoor unit
5 Sensor cables including the TRL return sensor on
the return to the heat pump
6 other 230 V inputs (electricity outage etc.)
7 1~/N/PE/230V power supply (to the terminal
block); cable cross-section max. 2.5 mm², internal
fuse 6.3 AT
K Cable ducts
Installation instructions for this in the operating in-
structions of your heat pump.
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