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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.
Inspection door(NOTICE 1)
(servicing space)
481(18-10/11)
345(13-1/2)
300mm(11-7/8 inch) more
(Servicing space)
300mm(11-7/8 inch) more
(Servicing space)
300mm(11-7/8 inch)more
(Servicing space)
450mm(17-3/4 inch) more
(Servicing space)
1
2
3
54
6
7
453(17-7/8)
174(6-7/8)
174(6-7/8)
182(7-1/8)
218(8-1/2)
419(16-1/2)
61(2-7/16)
137(5-3/8)
124(4-7/8)
128(5)
30(1-1/6)
60(2-3/8)
(NOTICE 2)
(NOTICE 2)
450(17-3/4)
450(17-3/4)
100mm(3-15/16 inch) more100mm(3-15/16 inch) more
(Serviceing space)(Serviceing space)
100mm(3-15/16 inch) more
(Serviceing space)
100 more
100 more
(Serviceing space)(Serviceing space)
100mm(3-15/16 inch) more100mm(3-15/16 inch) more
(Serviceing space)(Serviceing space)
100mm(3-15/16 inch) more
(Serviceing space)
:
1. Be sure to install the inspection door at the control box side.
2. If reducers are used, servicing space must be increased equal to reducer's dimension.
(Unit: mm(inch))
Description
PRHR030A/040A PRHR020A
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 Ø12.7(1/2) Brazing connection Ø9.52(3/8) Brazing connection
4 Indoor unit Gas pipe connection port Ø15.88(5/8) Brazing connection Ø15.88(5/8) Brazing connection
5 Indoor unit Liquid pipe connection port Ø9.52(3/8) Brazing connection Ø9.52(3/8) Brazing connection
6 Control box - -
7 Hanger metal M10 or M8 M10 or M8
Part NameNo.
Environment-friendly Alternative Refrigerant R410A
ENGLISH
Installation Manual 11
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