7
ENGLISH
Select installation location of the HR unit suitable for following condi-
tions
- Avoid a place where rain may enter since the HR unit is for indoor.
- Sufficient service space must be obtained.
- Refrigerant pipe must not exceed limited length.
- Avoid a place subject to a strong radiation heat from other heat
source.
- Avoid a place where oil spattering, vapor spray or high frequency
electric noise is expected.
- Install the unit at a place in which it is not affected by operation noise.
(Installation within cell such as meeting room etc. may disturb busi-
ness due to noise.)
- Place where refrigerant piping, drain piping and electrical wiring
works are easy.
(Unit: mm)
No. Part Name
Description
PRHR041/031 PRHR021
1
Low pressure Gas
pipe connection port
Ø28.58 Brazing con-
nection
Ø22.2 Brazing con-
nection
2
High pressure Gas
pipe connection port
Ø22.2 Brazing con-
nection
Ø19.05 Brazing con-
nection
3
Liquid pipe connec-
tion port
Ø15.88 Brazing con-
nection(PRHR041)
Ø9.52 Brazing con-
nection
Ø12.7 Brazing con-
nection(PRHR031)
4
Indoor unit Gas pipe
connection port
Ø15.88 Brazing con-
nection
Ø15.88 Brazing con-
nection
5
Indoor unit Liquid
pipe connection port
Ø9.52 Brazing con-
nection
Ø9.52 Brazing con-
nection
6 Control box - -
7 Hanger metal M10 or M8 M10 or M8
NOTE
!
• Be sure to install the inspection door at the control box side.
• If reducers are used, servicing space must be increased equal to
reducer's dimension.
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