Table of Contents
SiEN34-705
2. Removing Pinch Piping
Caution:
After removing the gas, remove the pinch piping.
Any gas remaining inside may blow off the pinch piping when you dissolve the brazing, causing
damage.
3. Connecting refrigerant piping to outdoor units
Installation Manual
! When connecting refrigerant piping to an outdoor unit, remove the pinch piping. (Refer to
figure 13)
! Pinch piping should be removed using the procedure in the figure 13.
Shutoff valve (liquid side · gas side)
Procedure 1:
Confirm the shutoff valve is closed.
Pinch piping
Gas side shutoff valve
Gas side accessory pipe (1)
Gas side shutoff valve
Gas side accessory pipe (2)
Gas side piping (field supply)
figure 13
If connected to the front
Remove the shutoff valve cover to connect.
Liquid side shutoff valve
When connected at lateral side (bottom)
Remove the knock hole on the bottom frame and
route the piping under the bottom frame.
Liquid side shutoff valve
Refrigerant charge port
Brazing
Liquid side accessory pipe (2)
Brazing
Knockout hole
Punch the knock hole.
figure 14
Heat Pump 60Hz (RXYQ5~54P)
Service port
Procedure 2:
Connect a charge hose to the service port of
the liquid side and gas side shutoff valves and
remove the gas from the pinch piping.
Procedure 3:
After removing the gas from the pinch piping,
dissolve the brazing using a burner and
remove the pinch piping.
Refrigerant charge port
Brazing
Liquid side accessory pipe (1)
Liquid side piping (field supply)
275
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