Installation Manual
EDUS04-904
36
Room Air Conditioners H-Series
Refri
g
erant Pipin
g
Work
1.
Flarin
g
the pipe end.
1) C
u
t the pipe end
w
ith a pipe c
u
tter.
2) Remo
v
e
bu
rrs
w
ith the c
u
t s
u
rface facing
do
w
n
w
ard so that the chips do not enter the pipe.
3) P
u
t the flare n
u
t on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
1) Do not
u
se mineral oil on flared part.
2) Pre
v
ent mineral oil from getting into the system as this
w
o
u
ld red
u
ce the
u
nit life.
3)
N
e
v
er
u
se piping
w
hich has
b
een
u
sed for pre
v
io
u
s installations. Only
u
se parts
w
hich are pro
v
ided
w
ith the
u
nit.
4)
N
e
v
er install a refrigerant drier to this
u
nit.
5) The drying material may dissol
v
e and damage the system.
6) Incomplete or improper flaring may ca
u
se refrigerant gas leakage.
WARNING
2.
Refri
g
erant pipin
g
.
1) 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.)
2) To pre
v
ent gas leakage, apply refrigeration oil only to the inner s
u
rface of the flare. (Use refrigeration oil for R410A.)
3) 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.
CAUTION
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.
Flare n
u
t tightening tor
qu
e
Gas side
Li
qu
id side
3/
8
inch
1/4 inch
24.1 - 29.4ft • I
b
f
(32.7 - 39.9
N
• m)
10.4 - 12.7ft • I
b
f
(14.2 - 17.2
N
• m)
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 0.030 Bt
u
/fth°F (0.035 to 0.045 kcal/mh°C))
Choose heat ins
u
lation materials that are designed for H
V
AC
u
se.
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)
Thickness 0.393 inch (
8
mm) Min.
Thickness 0.031 inch (0.
8
mm) (C1220T-O)
1-3/16 inch (30mm) or more
Minim
u
m
b
end radi
u
s
(C
u
t exactly at
right angles.)
Remo
v
e
bu
rrs
Check
Flare’s inner
s
u
rface m
u
st
b
e fla
w
-free.
The pipe end m
u
st
b
e e
v
enly flared in
a perfect circle.
Make s
u
re that the
flare n
u
t is fitted.
Set exactly at the position sho
w
n
b
elo
w
.
A
Flaring
Die
A
0 - 0.020 inch (0 - 0.5mm)
Cl
u
tch-type
Flare tool for R410A
0.039 - 0.059 inch (1.0 - 1.5mm)
Cl
u
tch-type (Rigid-type)
0.059 - 0.079 inch (1.5 - 2.0mm)
W
ing-n
u
t type (Imperial-type)
Con
v
entional flare tool
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]
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
Summary of Contents for H-Series
Page 1: ...EDUS 04 904 H Series Heat Pump SEER 13 Models ...
Page 63: ...Operation Manual EDUS04 904 62 Room Air Conditioners H Series 12 2 09 12 Class ...
Page 64: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 63 Ground terminal ...
Page 65: ...Operation Manual EDUS04 904 64 Room Air Conditioners H Series ...
Page 66: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 65 ...
Page 67: ...Operation Manual EDUS04 904 66 Room Air Conditioners H Series ...
Page 68: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 67 ...
Page 69: ...Operation Manual EDUS04 904 68 Room Air Conditioners H Series ...
Page 70: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 69 ...
Page 72: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 71 ...
Page 73: ...Operation Manual EDUS04 904 72 Room Air Conditioners H Series operation center ...
Page 74: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 73 ...
Page 75: ...Operation Manual EDUS04 904 74 Room Air Conditioners H Series ...
Page 76: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 75 ...
Page 77: ...Operation Manual EDUS04 904 76 Room Air Conditioners H Series ...
Page 78: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 77 ...
Page 79: ...Operation Manual EDUS04 904 78 Room Air Conditioners H Series ...
Page 81: ...Operation Manual EDUS04 904 80 Room Air Conditioners H Series ...
Page 82: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 81 ...
Page 84: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 83 ...
Page 85: ...Operation Manual EDUS04 904 84 Room Air Conditioners H Series fin fin fin ...
Page 87: ...Operation Manual EDUS04 904 86 Room Air Conditioners H Series 3P232717 1 ...
Page 88: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 87 12 3 15 18 24 Class Fins For ...
Page 89: ...Operation Manual EDUS04 904 88 Room Air Conditioners H Series Ground terminal ...
Page 90: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 89 ...
Page 91: ...Operation Manual EDUS04 904 90 Room Air Conditioners H Series INTELLIGENT EYE operation ...
Page 92: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 91 ...
Page 93: ...Operation Manual EDUS04 904 92 Room Air Conditioners H Series ...
Page 94: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 93 ...
Page 95: ...Operation Manual EDUS04 904 94 Room Air Conditioners H Series ...
Page 96: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 95 fins fins fins fins ...
Page 97: ...Operation Manual EDUS04 904 96 Room Air Conditioners H Series fins fins fins fins ...
Page 98: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 97 ...
Page 99: ...Operation Manual EDUS04 904 98 Room Air Conditioners H Series operation COMFORT AIRFLOW ...
Page 100: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 99 ...
Page 101: ...Operation Manual EDUS04 904 100 Room Air Conditioners H Series ...
Page 102: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 101 ...
Page 103: ...Operation Manual EDUS04 904 102 Room Air Conditioners H Series ...
Page 104: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 103 ...
Page 105: ...Operation Manual EDUS04 904 104 Room Air Conditioners H Series ...
Page 106: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 105 ...
Page 107: ...Operation Manual EDUS04 904 106 Room Air Conditioners H Series ...
Page 108: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 107 ...
Page 109: ...Operation Manual EDUS04 904 108 Room Air Conditioners H Series odor ...
Page 111: ...Operation Manual EDUS04 904 110 Room Air Conditioners H Series fin fin fin ...
Page 112: ...EDUS04 904 Operation Manual Room Air Conditioners H Series 111 ground neighboring ...
Page 113: ...Operation Manual EDUS04 904 112 Room Air Conditioners H Series cancels C 3P232717 2 ...
Page 123: ...Optional Accessories EDUS04 904 122 Room Air Conditioners H Series ...
