52
AHU Kit – Installation Instructions –
11/2021
Installation
When installing the expansion valve, the following limitations and restrictions need to be observed:
●
Wires must not be installed externally. Cable protection such as conduit is required.
●
Do not detach connector.
●
The distance from AHU heat exchanger must not exceed 6 m.
● Pipe reducers must be installed in the field where applicable.
For example, for 10HP ECOi systems, piping size to outdoor unit is Ø 9.52 mm
(instead of Ø 15.88 mm*).
AHU heat exchanger
Expansion valve (accessory)
Pipe to the outdoor unit
Pipe to the outdoor unit
Max. length: 6 m
Flare connection:
Ø 15.88 mm
Pipe to the AHU heat exchanger
●
Vertical inclination of expansion valve must be less than
±
15°.
Pipe to the outdoor unit
Expansion valve (MOV)
Pipe to the AHU heat exchanger
●
The coil wire must be inserted drooped in the AHU body with the drooping wire being
close to the AHU Kit.
Inside of AHU
AHU Kit
Drooping wire
Clamp
Important
If there are multiple heat exchangers in one
ECOi system
, an individual expansion valve must be
installed for each heat exchanger.
01.09.2021, cH
New drawings (x3) inserted as per ii_AHUkit21_EN_
v3_2021.08.11pa.pdf
i
Содержание PAW-280PAH3M-1
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