Daikin RKS50FVM [55/125] Outdoor unit installation 1

Daikin RKS50FVM [55/125] Outdoor unit installation 1
Installation Manual ED04-702
54 Room Air Conditioners F-Series
Service port cap tightening torque
10.8-14.7N • m
(110-150kgf • cm)
Valve cap tightening torque
Gas side Liquid side
1/2 inch 1/4 inch
48.1-59.7N • m
(490-610kgf • cm)
21.6-27.4N • m
(220-280kgf • cm)
Flare nut tightening torque
Gas side Liquid side
1/2 inch 1/4 inch
49.5-60.3N • m
(505-615kgf • cm)
14.2-17.2N • m
(144-175kgf • cm)
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.
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 30mm in 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) Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas.
2) To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces of the flare.
(Use refrigeration oil for R410A.)
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.
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
(Cut exactly at
right angles.) Remove burrs
Set exactly at the position shown below.
A
Flaring
Die
A 0-0.5mm
Clutch-type
Flare tool for R410A
1.0-1.5mm
Clutch-type (Rigid-type)
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
Drain plug
Hose (available commercially,
inner dia. 16mm)
Coat here with refrigeration oil
Torque wrench
Piping union
Flare nut
Spanner

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