EDUS04-906_b
Installation Manual
Room Air Conditioners H-Series
35
3.
Flaring the pipe end.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Valve cap tightening torque
Gas side
Liquid side
1/4 inch (6.4mm)
3/8 inch (9.5mm)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Flare nut tightening torque
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
Outdoor Unit Installation (1)
1.
Installing outdoor unit.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
2.
Drain work (heat pump-models).
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
4.
Refrigerant piping.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
WARNING
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
CAUTION
(Cut exactly at
right angles.)
Remove burrs
Set exactly at the position shown below.
A
Flaring
Die
A
0-0.020 inch (0-0.5mm)
Clutch-type
Flare tool for R410A
0.039-0.059 inch (1.0-1.5mm)
Clutch-type (Rigid-type)
0.059-0.079 inch (1.5-2.0mm)
Wing-nut type (Imperial-type)
Conventional flare tool
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
Drain-water hole
Bottom frame
Hose (available commercially,
inner dia. 5/8 inch (16mm))
(B) Drain plug
Torque wrench
Piping union
Flare nut
Do not apply refrigeration
oil to the outer surface.
Flare nut
Apply refrigeration oil to the
inner surface of the flare.
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Spanner
[Apply oil]
[Tighten]
Summary of Contents for Quaternity H-Series
Page 1: ...EDUS04 906_b H Series Heat Pump...
Page 45: ...Operation Manual EDUS04 906_b 44 Room Air Conditioners H Series Ground terminal...
Page 46: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 45 DRY button...
Page 47: ...Operation Manual EDUS04 906_b 46 Room Air Conditioners H Series...
Page 48: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 47...
Page 49: ...Operation Manual EDUS04 906_b 48 Room Air Conditioners H Series...
Page 51: ...Operation Manual EDUS04 906_b 50 Room Air Conditioners H Series...
Page 52: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 51...
Page 53: ...Operation Manual EDUS04 906_b 52 Room Air Conditioners H Series...
Page 56: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 55...
Page 57: ...Operation Manual EDUS04 906_b 56 Room Air Conditioners H Series 1 8 F 1 C 3 6 F 2 C...
Page 58: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 57...
Page 59: ...Operation Manual EDUS04 906_b 58 Room Air Conditioners H Series COOLING or DRY COOLING mode or...
Page 60: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 59...
Page 61: ...Operation Manual EDUS04 906_b 60 Room Air Conditioners H Series...
Page 62: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 61...
Page 63: ...Operation Manual EDUS04 906_b 62 Room Air Conditioners H Series...
Page 64: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 63...
Page 65: ...Operation Manual EDUS04 906_b 64 Room Air Conditioners H Series...
Page 66: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 65...
Page 67: ...Operation Manual EDUS04 906_b 66 Room Air Conditioners H Series...
Page 68: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 67...
Page 69: ...Operation Manual EDUS04 906_b 68 Room Air Conditioners H Series...
Page 70: ...EDUS04 906_b Operation Manual Room Air Conditioners H Series 69...
Page 71: ...Operation Manual EDUS04 906_b 70 Room Air Conditioners H Series 3P226009 1...