Installation manual

38GL_M…G / 38YY(S)_M…G
R-410A
GB - 10
햲 Three-way valve
햳 Needle valve
햴 Valve cap
햵 Valve needle
햶 Two-way valve
햷 Allen (hex. head) wrench
햸 Gas line (large diameter)
햹 Liquid line (small diameter)
햺 Flare nut
햻 Indoor unit
햽 Outdoor unit
햾 Vacuum pump
Air drain
Repeat the air drain procedure for every indoor unit installed.
Use only a vacuum pump to purge air from the piping.
NEVER use the system compressor as a vacuum pump.
NEVER use the unit refrigerant gas to purge the connecting
pipes.
No additional refrigerant has been provided in the unit for this
purpose.
Remove the caps from the two and three-way valves.
Create a vacuum with a vacuum pump connected to the service
connection of the suction shut-off valve, as shown, keeping the
shut-off valves completely shut until a -100 Pa (-1 bar) vacuum
has been reached.
Now open the two-way valve for 3 sec., then quickly shut it to
check for possible leaks.
After the leak check, fully open the two and three-way valves.
Replace caps and check for leaks.
햿 Pipe
헀 Pipe insulation
헁 Fastening tape
Once all connections have been completed, check for leaks by
using a leak detector specific for HFC refrigerants.
Finally wrap the valves and pipes with anti-condensate insulation
and tighten this with tape, without exerting too much pressure on
the insulation.
Repair and cover any possible cracks in the insulation.
Fix the pipes to the wall with hooks or conduits.
Refrigerant connections
햴
햺
햲
햳
햸
햹
햶
햷
햵
햴
햽
햾
햸
햹
햻햻
햸
햹
햸
햸
햹
햹
햻햻
햿
헀
헁