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Installing The Refrigerant Piping - Mitsubishi Electric CITY MULTI PKFY-P VHM-E Series Installatiehandleiding

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4. Installing the refrigerant piping
B
45±2°
Fig. 4-1
A Flare cutting dimensions
Copper pipe O.D.
Flare dimensions
(mm)
øA dimensions (mm)
ø6.35
8.7 - 9.1
ø9.52
12.8 - 13.2
ø12.7
16.2 - 16.6
ø15.88
19.3 - 19.7
ø19.05
22.9 - 23.3
B Refrigerant pipe sizes & Flare nut tightening torque
C Do not apply refrigerating machine oil to the screw portions.
(This will make the flare nuts more apt to loosen.)
D Be certain to use the flare nuts that are attached to the main unit.
(Use of commercially-available products may result in cracking.)
R407C or R22
Liquid pipe
Tightening
Pipe size O.D.
torque.
(mm)
(N·m)
P32/40
ODø6.35 (1/4")
14 - 18
P50
ODø9.52 (3/8")
14 - 18*
* Connect the joint with the following pipes: Liquid and gas pipes of P50.
E Apply refrigerating machine oil over the entire flare seat surface.
 PKFY-P·VHM-E
6
All manuals and user guides at all-guides.com
4.1. Connecting pipes (Fig. 4-1)
C
• When commercially available copper pipes are used, wrap liquid and gas pipes
• The indoor parts of the drain pipe should be wrapped with polyethylene foam
D
• Apply thin layer of refrigerant oil to pipe and joint seating surface before
• Use two wrenches to tighten piping connections.
• Use refrigerant piping insulation provided to insulate indoor unit connections.
When installing the unit, securely connect the refrigerant pipes before
starting the compressor.
Gas pipe
Tightening
Pipe size O.D.
Pipe size O.D.
torque.
(mm)
(N·m)
ODø12.7 (1/2")
49 - 61
ODø6.35 (1/4")
ODø15.88 (5/8")
49 - 61*
ODø6.35 (1/4")
Fig. 4-
4.. Positioning refrigerant and drain piping (Fig. 4-)
 PKFY-P·VHM-E
with commercially available insulation materials (heat-resistant to 100 °C or
more, thickness of 12 mm or more).
insulation materials (specific gravity of 0.03, thickness of 9 mm or more).
tightening flare nut.
Insulate carefully.
Warning:
R410A
Liquid pipe
Tightening
Pipe size O.D.
torque.
(mm)
(mm)
(N·m)
14 - 18
ODø12.7 (1/2")
14 - 18
ODø12.7 (5/8")
A Gas pipe
* Indicates the condition with accessories mounted.
B Liquid pipe
C Drain hose (Effective length: 400)
D Left-side piping knockout hole
E Right-side piping knockout hole
F Lower piping knockout hole
G Mount board 1
Flare nut O.D.
Gas pipe
Tightening
Liquid
Gas
torque.
pipe
pipe
(N·m)
(mm)
(mm)
49 - 61
17
26
49 - 61
17
26

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Deze handleiding is ook geschikt voor:

City multi pkfy-p32 vhm-eCity multi pkfy-p40 vhm-eCity multi pkfy-p50 vhm-e

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