46
11.4.3 Vacuumizing and leakage detection
1.Take off the nut cover on the stop valve of outdoor unit.
2.Align the center of piping and tighten the conical nut with 3 or 4 turns
by hand.
3.Tighten the conical nut by spanner.
4.Take off the one-way nut cover on the liquid valve and gas valve.
5.Screw out the core of liquid valve by inner hex angle spanner.
6.Open the core of the one-way valve on the gas valve by screwdriver.
There will be gas being discharged.
7.Discharge for a while and when refrigerant gas appears, close the
one-way valve and screw up the valve cover.
8. Open the core of liquid valve and gas valve completely
9.After tightening the cover, check if there is leakage in all connecting
points by soup water or detector.
10.If possible, use vacuum pump to discharge the air in the unit through
the one-way valve.
Thin pipe Thick pipe
Vacuum pump
11.4.4 Drainage of condensed water for outdoor unit
When heating, condensed water and defrosted water produced by outdoor unit
can be drained to a proper place through drainage hose.
Installing method:
Clasp and install the outdoor drainage connector into the
φ
25 hole on the base
plate. Then connect the drainage pipe to the drainage fitting. Condensed water
and defrosted water can be led to proper location for drainage.
(Fig.11-10)
Liquid pipe
Gas pipe
Screwdriver
One-way valve
Gas valve
Liquid valve
Inner hex angle spanner
(Fig.11-8)
Vacuum pump
Valve bonnet
(Fig.11-9)
Chassis of
outdoor unit
Outdoor drainage
connector
Summary of Contents for KFR-32GW/NJ1F
Page 2: ...1 1 Summary and features Models Remark...
Page 3: ...3 2 Specifications and technical parameters...
Page 4: ...4...
Page 7: ...7 4 2 Outline and installation dimension of outdoor unit Unit mm Above 60cm Bolt Nut Spanner...
Page 33: ...33 9 Explosive view and parts and components list 9 Explosive view of indoor unit...
Page 35: ...35 The above date is subject to change without further notice...
Page 36: ...36 9 3 Explosive view of outdoor unit...
Page 38: ...38 The above data is subject to change without further notice Built in Built in...