Page 2027 - Workshop Manual - Tunland (2017)

HEATER AND AIR CONDITIONING - REFRIGERANT 61-21

(b) Turn on the high pressure and low pressure
valves of the A/C refrigerate collecting/filling
system.
(c) Select the "Vacuum" operation of the A/C
refrigerate collecting/filling system and set the 61
timer to 15 minutes.
(d) Start the vacuuming process of the A/C
refrigerate collecting/filling system.When the
set timer is reached, the system will stop
working.
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(e) Turn off the high pressure and low pressure
valves at the connectors of the A/C refrigerate
collecting/filling system and record the reading
of the pressure gauge.
(f) Maintain the pressure for 15 minutes. If the
reading remains unchanged, it means there
is no leakage in the A/C pipe. Top up the
refrigerant, lubricant and coolant. If the
reading grows, check for leakage in the A/C
system.
(g) Disconnect the connectors of the A/C
refrigerate collecting/filling system to the high
and low ends of the A/C system respectively.

3 . Fill up the Refrigerant

(a) Connect the connectors of the A/C refrigerate
collecting/filling system to the high and low
ends of the A/C system respectively.
(b) Vacuum the A/C system.
(c) Top up the coolant.
(d) Select the "Refrigerant Filling" option of the
A/C refrigerate collecting/filling system and
set the filling volume.
ftwx611012 A/C refrigerant filling volume: 700±50g

(e) Turn on the low pressure valve at the
connector of the A/C refrigerate
collecting/filling system, start the system and
top up the refrigerant.
(f) Watch the display of the A/C refrigerate
collecting/filling system. When the filling
volume reaches the set value, the display will
inform you that the filling is complete.

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