Daikin FBQ20EAVAK Installation Manual page 13

01_EN_3PN06583-10W.fm Page 11
Heat insulation procedure for liquid piping
Insulation material for piping
(on unit side)
Attached to the surface.
Clamp (8) (accessory)
Insulation material for piping (field supply)
Heat insulation procedure for gas piping
Insulation material for piping
(on unit side)
Attached to the surface.
Clamp (8) (accessory)
Insulation material for piping (field supply)
• When brazing the refrigerant piping, only begin brazing after having carried out nitrogen
substitution or while inserting nitrogen into the refrigerant piping.
Once this is done, connect the indoor unit with a flared or a flanged connection.
English
Thursday, March 24, 2011 9:03 AM
Insulation for fitting (4) (accessory)
Flare nut joint
Make sure that the seam faces upward.
Main unit
Gas pipe
Insulation for fitting (5) (accessory)
Flare nut joint
Make sure that the seam faces upward.
Refrigerant piping
Part to be
brazed
Nitrogen
Fig. 9
Middle sealing pad (7) (accessory)
Wrap the insulation material around the
portion from the surface of the main unit
to the upper part of the flare nut joint.
Liquid pipe
Fig. 8
Middle sealing pad (7) (accessory)
Wrap the insulation material around the
portion from the surface of the main unit
to the upper part of the flare nut joint.
Pressure-reducing valve
Taping
Hands valve
Nitrogen
12