Sea Breeze SMZC9H4ZIGX User Manual page 17

Cut exactly
at right Remove
burrs
angles
Identify Line Sets
Mark the line sets as necessary to prevent crossed connections. Crossed line sets will prevent
proper operation.
Identify Interconnect cables
Connect interconnect cable and identify cable at both ends. Cable routed to terminal from rear of
indoor unit.
Connecting Line Set
1. Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and
gas leaks.
2. Align the centres of both flares and tighten the flares and the nuts 3 or 4 turns by hand. Then
tighten them with a spanner and torque wrench. See Figure 12 below.
3. To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces in the flares.
(Use refrigeration oil for R410A). See Figure 12 below.
Coat here with refrigeration oil
Tightening Torque Table:
11 – 22
1/4" 3/8"
lbs ft.
NOTE:
Protect the open end of the pipe against dust and moisture.
1.
All pipe bends should be as gentle as possible. Use a pipe
2.
bender for bending. (Bending radius should be no less than
1/8").
950-0205revC
Flar ing
Set exactly at the position show n below
Flare tool for R410A
A
Clutch-type
Die
A
0-0.002"
Figure 12
23 – 29
1/2"
lbs ft.
- 17 -
Flare s inner
surface must
be scratch free
Conventional flare tool
Wing-nut type
Clutch-type
(Rigid-type) (lmperial-type)
0.003-0.005" 0.005-0.007"
Figure 11
.
Torque wrench
.
Joint
Note: Exceeding the tightening
33 – 37
torque will damage the flare surface.
lbs ft.
The pipe end must
'
be evenly flared in
a perfect circle
-
Make sure that the
flare nut is fitted
Spanner
Flare nut
Connection pipe
Indoor unit tubing
Be sure to
place a cap.
Figure 13
.
July 22, 2015