Test And Operation - Toyotomi CTN-228W User Manual

• Slant the drain hose slightly downwards.The drain hose can't be curved,
raised and fl uctuant, etc.

Test and operation

Use vacuum pump
1. Remove the valve caps on the
liquid valve and gas valve and
the nut of refrigerant charging
vent.
2. Connect the charging hose of
piezometer to the refrigerant
charging vent of gas valve and
then connect the other charging
hose to the vacuum pump.
3. Open the piezometer completely
and operate
to check if the pressure of
piezometer remains in -0.1MPa.
4. Close the vacuum pump and maintain this status for 1-2min to check if the
pressure of piezometer remains in -0.1MPa. If the pressure decreases,
there may be leakage.
5. Remove the piezometer, open the valve core of liquid valve and gas valve
completely with inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
7. Reinstall the handle.
The drain hose can't be fl uctuant
The drain
hose
can't be
fl uctuant
refrigerant charging
nut of refrigerant
for 10-15min
50
The water
outlet
can't be
fl uctuant
liquid valve
gas valve
vent
charging vent
piezometer
Lo Hi
valve cap
vacuum
pump
inner hexagon
spanner
close
open
GB