3 Piping work and refrigerant charge
Piping connection for outdoor unit
SMGB0136 rev.0 - 07/2021
51
3
Do not apply two spanners at
this position. If applied,
leakage will occur.
Stop valve
(Spindle type)
Flare nut
Use two spanners
here for pipe
connection
Do not work with
two spanners
here.
Refrigerant
leakage shall
occur
! CAUTION
• At the test run, fully open the spindle and ball stop valve.
• If not fully opened, the devices will be damaged.
• Do not attempt to turn service valve rod beyond its stop.
• Do not loosen the stop ring. If the stop ring is loosened, it is dangerous since the spindle will hop out.
• An excess or a shortage of refrigerant is the main cause of trouble to the units. Charge the correct refrigerant quantity according to the
description of label at the inside of service cover.
• Check for refrigerant leakage in detail. If a large refrigerant leakage occurs, it will cause difculty with breathing or
harmful gases would occur if a re was being used in the room.
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