Daikin RKS50FVM [62/125] Outdoor unit installation 1
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Daikin RKS50FVM [62/125] Outdoor unit installation 1

Daikin RKS50FVM [62/125] Outdoor unit installation 1
ED04-702 Installation Manual
Room Air Conditioners F-Series 61
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.
• Use drain plug for drainage.
• If the drain port is covered by a mounting base or floor surface, place additional foot bases of at least
100mm in height under the outdoor unit’s feet.
•
In cold areas, do not use a drain hose with the outdoor unit. (Otherwise, drain water may freeze, impairing heating performance.)
1) Insert drain receiver (C) onto drain socket (A) and drain cap (B) beyond
4 projections around drain socket and drain cap.
2) Insert drain socket and drain caps into their matching drain hole ; Drain
socket (A) into drain hole I and drain caps (B) into drain hole II and III .
After insertion, turn them about 40° clockwise.
3) Connect vinyl hose on the market (internal diameter of 25mm) to drain socket (A).
(If the hose is too long and hangs down, fix it carefully to prevent the kinks.)
NOTE
If the drain holes of the outdoor unit are covered with the mounting bracket or the floor, raise the unit to
provide the space of more than 100mm under the leg of the outdoor unit.
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.
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
Flare nut tightening torque
Gas side Liquid side
5/8 inch 1/4 inch
61.8-75.4N • m 14.2-17.2N • m
(630-770kgf • cm) (144-175kgf • cm)
Valve cap tightening torque
Gas side Liquid side
5/8 inch 1/4 inch
48.1-59.7N • m 21.6-27.4N • m
(490-610kgf • cm) (220-280kgf • cm)
Service port cap 10.8-14.7N • m
tightening torque (110-150kgf • cm)
Coat here with refrigeration oil
Torque wrench
Piping union
Flare nut
Spanner
(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.
(C) Drain receiver
(A) Drain socket (B) Drain cap
(Be sure not to insert them into wrong drain
holes, or there causes water leakage.)
(View from bottom)
I
II
III

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