44
Installation
When installing the expansion valve, the following limitations and restrictions need to be
observed:
● Wires must not be put out of equipments.
● Wires must not be cut and connector of wires must not be detached.
●
The distance from AHU heat exchanger must not exceed 6 m.
● Pipe reducers must be installed in the fi eld 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
Important
If there are multiple heat exchangers in one
ECOi system
, an individual expansion valve must
be installed for each heat exchanger.
i
Содержание PAW-160MAH2
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