Sea Breeze SMZC9H4ZIGX User Manual page 18

Selection of copper and heat insulation materials
1. Insulation material: Polyethylene foam.
Heat transfer rate: 0.041 to 0.052 W / mK (0.035 to
kcal / mh°C).
Refrigerant gas pipe's temperature reaches 230 °F max.
Choose heat insulation materials that will withstand this
temperature.
2. Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below:
Gas side
9K / 12K 18K
O.D.- 3/8" O.D.-1/2"
Thickness: 0.026".
3. Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
Connecting Line Set
1. Check for leakage of gas after air purging
2. See the sections on air purges and gas leak
in the installation manual which placed with
the outdoor unit.
Attaching the connection pipe
● Attach the pipe after checking for gas leakage. See Figure 16 below.
1. Cut the insulated portion of the on-site piping, matching it up with the connection portion.
2. Secure the slit on the refrigerant piping side with the butt joint on the auxiliary piping using the
tape, making sure there are no gaps.
3. Wrap the slit and butt joint with the included insulation sheet, making sure there are no gaps.
NOTE:
1. Insulate the joint of the pipes securely. Incomplete insulation may lead to water leakage.
2. Push the pipe inside so it does not place undue force on the front grill.
950-0205revC
Liquid side Gas pipe thermal insulation
9K / 12K
O.D.-1/4"
I.D.- 0.04" to 0.05"
Thickness: 0.033" min.
Re fr i g e r a n t
p i p e
S l i t
S l i t
Figure 16.
- 18 -
Inter-unit wiring
Gas pip
Insulation
Figure 14.
18K
I.D.- 0.05"
Re fr i g e r a n t
Re fr i g e r a n t
p i p e
p i p e
In su l a ti o n sh e e t
Ta p e
A u xi l i a r y p i p e
0.045
Liquid pipe
Insulation
Finishing tape
Liquid pip
thermal
insulation
I.D.
I.D. - 0.03"
Check for leakage here
Apply soapy water and
check carefully for leaking
Wipe soapy water off after
the check is complete.
Figure 15.
July 22, 2015