EDUS041016
Installation Manual
Room Air Conditioners J-Series
35
11
2.
Refri
g
erant pipin
g
CAUTION
• Use the flare n
u
t fixed to the main
u
nit. (To pre
v
ent cracking of the flare n
u
t
b
y aged deterioration.)
• To pre
v
ent gas leakage, apply refrigeration oil only to the inner s
u
rface of the flare. (Use refrigeration oil for R410A.)
• Use tor
qu
e
w
renches
w
hen tightening the flare n
u
ts to pre
v
ent damage to the flare n
u
ts and gas leakage.
Align the centers of
b
oth flares and tighten the flare n
u
ts 3 or 4 t
u
rns
b
y hand. Then tighten them f
u
lly
w
ith the tor
qu
e
w
renches.
2-1. Caution on pipin
g
handlin
g
1) Protect the open end of the pipe against d
u
st and moist
u
re.
2) All pipe
b
ends sho
u
ld
b
e as gentle as possi
b
le. Use a pipe
b
ender
for
b
ending.
2-2. Selection of copper and heat insulation materials
W
hen
u
sing commercial copper pipes and fittings, o
b
ser
v
e the follo
w
ing:
1) Ins
u
lation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052
W
/mK (0.024 to 0.030Bt
u
/fth°F (0.035 to
0.045kcal/mh°C)
2) Be s
u
re to ins
u
late
b
oth the gas and li
qu
id piping and to pro
v
ide ins
u
lation
dimensions as
b
elo
w
.
3) Use separate thermal ins
u
lation pipes for gas and li
qu
id refrigerant pipes.
Gas side
Li
qu
id side
Gas pipe thermal
ins
u
lation
Li
qu
id pipe thermal
ins
u
lation
O.D. 3/
8
inch (9.5mm)
O.D. 1/4 inch (6.4mm)
I.D. 0.427-0.590 inch
(12-15mm)
I.D. 0.315-0.393 inch
(
8
-10mm)
Minim
u
m
b
end radi
u
s
Thickness 0.393 inch (10mm) Min.
1-3/16 inch (30mm) or more
Thickness 0.031 inch (0.
8
mm) (C1220T-O)
Do not apply refrigeration
oil to the o
u
ter s
u
rface.
Flare n
u
t
Apply refrigeration oil to
the inner s
u
rface of the
flare.
Do not apply refrigeration
oil to the flare n
u
t a
v
oid
tightening
w
ith o
v
er tor
qu
e.
[Apply oil]
Tor
qu
e
w
rench
Piping
u
nion
Flare n
u
t
Spanner
[Tighten]
Flare n
u
t tightening tor
qu
e
Gas side
Li
qu
id side
3/
8
inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • l
b
f
(32.7-39.9
N
• m)
10.4-12.7ft • l
b
f
(14.2-17.2
N
• m)
W
all
If no flare cap is
a
v
aila
b
le, co
v
er
the flare mo
u
th
w
ith tape to keep
dirt or
w
ater o
u
t.
Be s
u
re to
place a cap.
Rain
Gas pipe
Li
qu
id pipe
Gas pipe
ins
u
lation
Li
qu
id pipe
ins
u
lation
Finishing tape
Drain hose
Inter-
u
nit
w
iring
Be s
u
re to
u
se ins
u
lation that is designed for
u
se
w
ith H
V
AC Systems.
Summary of Contents for J Series
Page 1: ...EDUS041016 J Series Cooling Only Heat Pump SEER 13 Models ...
Page 53: ...Operation Manual EDUS041016 52 Room Air Conditioners J Series 12 2 Operation Instructions ...
Page 54: ...EDUS041016 Operation Manual Room Air Conditioners J Series 53 ...
Page 55: ...Operation Manual EDUS041016 54 Room Air Conditioners J Series ...
Page 56: ...EDUS041016 Operation Manual Room Air Conditioners J Series 55 ...
Page 57: ...Operation Manual EDUS041016 56 Room Air Conditioners J Series ...
Page 58: ...EDUS041016 Operation Manual Room Air Conditioners J Series 57 ...
Page 59: ...Operation Manual EDUS041016 58 Room Air Conditioners J Series ...
Page 60: ...EDUS041016 Operation Manual Room Air Conditioners J Series 59 ...
Page 61: ...Operation Manual EDUS041016 60 Room Air Conditioners J Series ...
Page 62: ...EDUS041016 Operation Manual Room Air Conditioners J Series 61 ...
Page 63: ...Operation Manual EDUS041016 62 Room Air Conditioners J Series ...
Page 64: ...EDUS041016 Operation Manual Room Air Conditioners J Series 63 ...
Page 65: ...Operation Manual EDUS041016 64 Room Air Conditioners J Series ...
Page 66: ...EDUS041016 Operation Manual Room Air Conditioners J Series 65 ...
Page 67: ...Operation Manual EDUS041016 66 Room Air Conditioners J Series ...
Page 68: ...EDUS041016 Operation Manual Room Air Conditioners J Series 67 ...
Page 69: ...Operation Manual EDUS041016 68 Room Air Conditioners J Series ...
Page 70: ...EDUS041016 Operation Manual Room Air Conditioners J Series 69 ...
Page 71: ...Operation Manual EDUS041016 70 Room Air Conditioners J Series ...
Page 72: ...EDUS041016 Operation Manual Room Air Conditioners J Series 71 ...
Page 73: ...Operation Manual EDUS041016 72 Room Air Conditioners J Series ...
Page 74: ...EDUS041016 Operation Manual Room Air Conditioners J Series 73 ...
Page 75: ...Operation Manual EDUS041016 74 Room Air Conditioners J Series ...
Page 76: ...EDUS041016 Operation Manual Room Air Conditioners J Series 75 ...
Page 77: ...Operation Manual EDUS041016 76 Room Air Conditioners J Series 3P253185 2 ...