Table of Contents
Outdoor Unit Installation
1.
Installing the outdoor unit
1) When installing the outdoor unit, refer to "Precautions for Selecting a Location" on page 3 and the "Outdoor Unit
Installation Diagram" on page 4.
2) If drain work is necessary, follow the procedures below.
2.
Drain work
CAUTION
In cold areas, do not use a drain socket, drain caps (1,2)
and a drain hose with the outdoor unit. (Drain water may
freeze, impairing heating performance.)
• 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) in height under the outdoor unit's feet.
1) Attach
C
drain cap (1) and
2) Attach
B
drain socket.
• When attaching
frame, make sure to connect the drain hose to the
drain socket first.
3.
Refrigerant piping
CAUTION
• Use the flare nut fixed to the main unit. (This is to prevent the flare nut from cracking as a result of deterioration over time.)
• To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)
• Use a torque wrench 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 a spanner and a
torque wrench.
Do not apply refrigeration
oil to the outer surface.
Flare nut
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
Flare nut tightening torque
φ1/4 inch (6.4mm)
φ3/8 inch (9.5mm)
φ1/2 inch (12.7mm)
φ5/8 inch (15.9mm)
Width across flats
Valve cap tightening torque
Service port cap tightening torque
■
English
D
drain cap (2).
B
drain socket to the bottom
Apply oil
10-1/2 – 12-3/4ft • lbf (14.2-17.2N • m)
24-1/8 – 29-1/2ft • Ibf (32.7-39.9N • m)
36-1/2 – 44-1/2ft • lbf (49.5-60.3N • m)
45-5/8 – 55-5/8ft • lbf (61.8-75.4N • m)
11/16 inch (17mm)
10-1/2 – 12-5/8ft • lbf
12-5/8 – 15-3/8ft • lbf
(14.2-17.2N • m)
8 – 10-7/8ft • lbf
(10.8-14.7N • m)
D
B
Bottom frame
Drain cap
Pinch the bottom
frame in.
Apply refrigeration
oil only to the inner
surface of the flare.
Spanner
Piping union
3/4 inch (19mm)
7/8 inch (22mm)
16 – 20-1/4ft • lbf
(17.1-20.9N • m)
(21.6-27.4N • m)
Drain cap (1)
C
Drain cap (2)
Drain
Drain cap (2)
D
socket
Air outlet side
Bottom frame
Drain socket
B
Hose (available commercially,
inner dia. 5/8 " (16mm))
Tighten
Torque wrench
Flare nut
1-1/16 inch (27mm)
35-3/8 – 44-1/8ft • lbf
(48-59.8N • m)
8
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