Piping Connection For Cooling/Heating Changeover Operation System - Galactic GUC-136Z-H Installation & Maintenance Manual

6.4 Piping Connection
Perform the piping connection work for each outdoor unit.
NOTE:
Ensure that the refrigerant pipe should be connected to the same refrigerant cycle unit.
● Prepare the refrigerant pipe in the field for the piping work.
Refer to Fig. 6.1 for the position of piping connection.
● Piping Direction
Fix the pipes adequately in order to avoid vibration and excessive force to the valve.
(1) The pipes are available to connect in three directions
(front, rear or bottom side) from the bottom base.
For the vibration protection, properly fix the piping
connection and check that no excessive force applied to
the stop valve.
(2) Operation of the stop valve should be performed according to Item 6.4.4.
(3) Connect the pipes according to Table 5.1 and this
"Installation & Maintenance Manual".
(4) Completely seal the penetration part of the bottom
pipe with insulation in order to prevent rain water
entering into the conduit.
Gas Line Refrigerant Piping
Connection
Liquid Line Refrigerant Piping
Connection
145
A Gas Line Refrigerant Piping
Connection
285
B Liquid Line Refrigerant Piping
Connection
Fig. 6.1 Refrigerant Piping Connection
Model ( KBtu/h )
76
96
114
136
154
Front Side
Bottom Side
Bottom Base
Liquid Pipe
Gas Pipe
Pipe Cover
Apply insulation and
check that no clearance exists.
(mm)
A B C D
155 155 185 345
170 175 180 325
Rear Side
23