Refrigerant Pipe Connection - Goodman MSC 15 SEER Manuel D'installation Et D'utilisation

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.
Point down
Copper tube
4. Flare Connections: Firmly hold the copper pipe in a die
with the dimensions as in the following tables.
15 SEER & 19 SEER
Pipe size
Model
Gas
1/2"
MSC12*
(Ф12.7)
3/8''
MSH12*
(Ф9.52)
3/8''
(Ф9.52)
MSC18*
MSH18*
1/2"
(Ф12.7)
Pipe
Reamer
Figure 17
Flare nut
Figure 18
ft. B A
Liquid
(m) ft. (m) ft. (m)
1/4''
16.5 26.25 66
(5) (8) (20)
(Ф6.35)
1/4''
16.5 26.25 66
(5) (8) (20)
(Ф6.35)
1/4''
16.5 33 82
(5) (10) (25)
(Ф6.35)
1/4''
16.5 33 82
(5) (10) (25)
(Ф6.35)
Outdoor Diameter
(Inches & mm)
1/4" (6.35)
3/8" ( 9.52)
1/2" (12.7)
5/8" (16.0)
Bar
Copper pipe
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.
Outdoor
Diameter (mm)
1/4" (Φ 6.35)
3/8" (Φ 9.52)
1/2" (Φ12.7)
5/8" (Φ16.0)
oz./ft.
(g/m)
0.3
(20)
0.3
(20)
0.3
(20)
0.3
(20)
7
A (inches & mm)
Max
3/64" (1.3) 1/32" (0.7)
1/16" (1.6) 3/64"( 1.0)
1/16" (1.8) 3/64" (1.0)
3/32" (2.2) 3/32" (2.0)
Handle
Bar
Clamp handle
Red arrow mark
Figure 19
Additional
Tightening
Tightening
Torque
Torque
11 lb.-ft. 11.8 lb.-ft.
1500 (N-cm) 1600 (N-cm)
18.5 lb.-ft. 19.2 lb.-ft.
2500 (N-cm) 2600 (N-cm)
26 lb.-ft. 26.5 lb.-ft.
3500 (N-cm) 3600 (N-cm)
33 lb.-ft. 34.5 lb.-ft.
4500 (N-cm) 4700 (N-cm)
Figure 20
Min
Yoke
Cone