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6 HR Unit
Installation
Installation
n Select installation location of the HR unit suitable for following conditions
• 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 business due to noise.)
• Place where refrigerant piping, drain piping and electrical wiring works are easy.
NOTES
* Be sure to install the inspection door at the electric control side.
** If reducers are used, servicing space must be increased equal to reducer's dimension.
Selection of the best location
Dimensional drawings
Inspection door
(servicing space)
481(18-15/16)
345(13-19/32)
300(11-13/16)
more
300(11-13/16)
more
300(11-13/16)
more
450(17-23/32)
more
(Servicing space) (Servicing space)
(Servicing space)
(Servicing space)
1
2
3
54
6
7
453(17-27/32)
174(6-27/32)
174(6-27/32)
218(8-19/32)
182(7-5/32)
419(16-1/2)
61(2-13/32)
152(5-31/32)
124(4-7/8)
128(5-1/32)
30(1-3/16)
450(17-23/32)
450(17-23/32)
100(3-15/16) more
(Serviceing space)
100(3-15/16) more
(Serviceing space)
60(2-3/8)
[Unit : mm(inch)]
Description
PRHR031A/PRHR041A PRHR021A
1 Low pressure Gas pipe connection port Ø28.58(1-1/8) Brazing connection
Ø22.2(7/8) Brazing connection
2 High pressure Gas pipe connection port Ø22.2(7/8) Brazing connection
Ø19.05(3/4) Brazing connection
3 Liquid pipe connection port
Ø
15.88(5/8) Brazing connection(PRHR041A)
Ø9.52(3/8) Brazing connection
Ø
12.7(1/2) Brazing connection(PRHR031A)
4 Indoor unit Gas pipe connection port
Ø15.88[5/8] – Ø12.7[1/2] Brazing connection
Ø15.88[5/8] – Ø12.7[1/2]
Brazing connection
5 Indoor unit Liquid pipe connection port
Ø9.52(3/8)– Ø6.35(1/4) Brazing connection
Ø9.52(3/8)– Ø6.35(1/4) Brazing connection
6 Control box - -
7 Hanger metal Suspension bolt M10 or M8 Suspension bolt M10 or M8
Part Name
No.
[Unit : mm(inch)]
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