Goodman MSC 15 Series, Руководство по установке и эксплуатации

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7
Refrigerant Pipe Connection
NOTE:
The main cause of refrigerant leaks is due to defective
flare connections.
Make flare connections using the following procedure:
1. Remove the flare nuts attached to the indoor and out-
door units. Before flaring, slide them over the tubing. It
is not possible to put them on after flaring tubes.
2. Insert tube in flare tool to measurement “A” in chart.
Flare tubing as shown in Figure 19. Make sure flare is
free of burrs and completely formed to make a leak proof
joint.
NOTE:
In order to avoid dropping burrs into the tubing,
angle the end of the copper tube/pipe in a downward
direction as you remove the burrs.
Pipe
Reamer
Point down
Figure 17
Flare nut
Copper tube
Figure 18
4. Flare Connections: Firmly hold the copper pipe in a die
with the dimensions as in the following tables.
15 SEER & 19 SEER
Stan
d
a
rd
Le
n
g
th
M
ax.
El
evati
o
n
M
ax.
Le
n
g
th
Ad
di
ti
o
n
a
l
R
e
fr
ig
er
an
t
Gas Liquid
ft.
(m)
B
ft. (m)
A
ft. (m)
oz./ft.
(g/m)
1/2" 1/4’’
( Ф 12.7) ( Ф 6.35)
3/8’’ 1/4’’
( Ф 9.52) ( Ф 6.35)
3/8’’ 1/4’’
( Ф 9.52) ( Ф 6.35)
1/2" 1/4’’
( Ф 12.7) ( Ф 6.35)
26.25
(8)
0.3
(20)
26.25
(8)
66
(20)
0.3
(20)
66
(20)
MSH12*
16.5
(5)
Model
Pipe size
MSC12*
16.5
(5)
0.3
(20)
MSC18*
MSH18*
16.5
(5)
33
(10)
82
(25)
16.5
(5)
0.3
(20)
33
(10)
82
(25)
Outdoor Diameter
(Inches & mm) Max Min
1/4" (6.35) 3/64" (1.3) 1/32" (0.7)
3/8" ( 9.52) 1/16" (1.6) 3/64"( 1.0)
1/2" (12.7) 1/16" (1.8) 3/64" (1.0)
5/8" (16.0) 3/32" (2.2) 3/32" (2.0)
A (inches & mm)
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A
"
Figure 19
5. Tightening the connection:
• Align the center of the pipes and finger-tighten the flare
nut. Using a spanner and torque wrench (Figures 20 &
21) continue tightening the flare nut until the nut is firmly
on the pipe.
1/4" ( Φ 6.35)
11 lb.-ft.
1500 (N-cm)
11.8 lb.-ft.
1600 (N-cm)
3/8" ( Φ 9.52)
18.5 lb.-ft.
2500 (N-cm)
19.2 lb.-ft.
2600 (N-cm)
1/2" ( Φ 12.7)
26 lb.-ft.
3500 (N-cm)
26.5 lb.-ft.
3600 (N-cm)
5/8" ( Φ 16.0)
33 lb.-ft.
4500 (N-cm)
34.5 lb.-ft.
4700 (N-cm)
Outdoor
Diameter (mm)
Tightening
Torque
Additional
Tightening
Torque
Figure 20