Value VRR24L User manual

VRR24L
E-mail:[e-mail] http//:www.worldvalue.cn

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the
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When using an extension cord , it should be a minimum 2.0mm AWG and no longer
than 7.5 meters, or it may cause the voltage drop and damage the compressor.
377.1
580

1. Do not mix different refrigerants together in one tank,or they could not
be separated or used.
2. Before recovering the refrigerant, the tank should achieve the vacuum
level: -0.1 MPa, which is for purging non-condensable gases. Each tank
was full of nitrogen when it was manufactured in the factory, thus the
nitrogen should be evacuated before the first use.
3. The switch should be at "Position 4" before operation. All the valves must
be closed, the input and output fittings should be covered withprotective
caps when the unit is not in operation .The air moisture is harmful to the
recovery result and will shorten the life span of the unit.
4. A filter drier should always be used and should be replacedfrequently.
And each type of refrigerant must have its own filter. For the sake of
ensuring the normal operation of the unit, please use the filter specified
by our company. High quality filter drier will bring high quality services.
5. Special-caution is needed when recovering from burnt system, and two
dry filter is needed.
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6.
The unit has an Internal High Pressure Shut-Off Switch. If the pressure
inside the system is above 38.5bar, compressor will automatically shut
off and the power will be off. To restart the compressor, please lower the
internal pressure and hit the Reset button, then turn on the power to
restart the compressor.
When High Pressure Protection is initiated, please please find out the
cause and deal with it before restarting the unit.
Cause of High Pressure Protection and Trouble Shooting:
① The input valve of the refrigerant tank is closed——open the valve will
help solve the problem.
② The connecting hose between the recovery unit and refrigerant tank is
stuck——close all the valves and replace the connecting hose.
③ The temperature of the refrigerant tank is too high, pressure is too
high——give it some time to cool down and the pressure will come back
to normal.
7. The unit has an Internal Low Pressure Shut-Off Switch and Bypas switch.
When the Bypass switch is on automatic, if the pressure inside the system is
below -14±2 inHg( ), the unit will automatically shut off
and the Green Alarm Light turns on.If it needs restart the compressor,
pleaseincrease the input pressure above 0.8Kgf/cm or turn the Bypass
switch on manual and then press the start button.
8. This unit can be used together with a float level sensor. Please connect
the recovery unit and the tank with the 80% O.F.P. Cable(Item 3 in the
PARTS DIAGRAM). If the liquid refrigerant reaches 80% capacity of
the tank, the recovery unit will automatically shut off and the Red Alarm
Light turns on (80% O.F.P.ALARM ：item 3 on the PARTS DIAGRAM).Before
restart please change a new tank.
9. If the refrigerant tank has no float level sensor, please take the 80%O.F.P
Cable off. Otherwise the recovery unit can not started. In this case, an
electric scale is required to monitor the recovered refrigerant amount.
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according to model
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10. In order to gain maximum recover speed, a hose with inner diameterbigger
than 4mm is recommended and the hose should better be shorterthan1.5m.
11. While recovering large amounts of liquid, use the Push/Pull Mode.
(See Push/Pull Mode operation on Page12)
12. After recovering, make sure there is no refrigerant left in the unit. Read
the Purge Operation carefully. Liquid refrigerant remained in the unit
may be expanded and destroy the components.
13. If the unit is to be stored or not used for any length of time, we recommend
that it be completely evacuated of any residual refrigerant and purged
with dry nitrogen.
14. Connection hose with check valve is recommended, it can prevent
refrigerant lose.
15. The intake port is equipped with filter screen, please wash it frequently
to keep it clean.
16. The One Key Operation switch is not allowed between the positions
(“1” ,“2” ,“3”, 4 ) , it must point directly to the numbers.
17. If it is difficult to start the unit, please turn the Switch two rounds to
balance the internal pressure and make it easier to start the unit.
18. The Low Pressure Gauge shows the pressure of the intake port of the
compressor and the High Pressure Gauge shows the pressure of the outlet
port of the recovery unit.
“ ”
1 HP
14.8 Kg
7.47Kg/min 8.37Kg/min
3.12Kg/min2.73Kg/min
0.46Kg/min 0.50Kg/min 0.52Kg/min
3.38Kg/min
9.59Kg/min
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※：Optional according to model
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NO.
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NO.
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16FAN
FAN COVER
POWER SUPPLY CORD
BASE
AIR-COOL CONDENSER
O.F.P. CABLE（※）
FRONT PANEL
PLASTIC COVER
COMPONENT
CONTROL VALVE
COPPER PIPES
COMPRESSOR
RUNNING CAPACITOR
JUNCTION BOX COVER
JUNCTION BOX
STARTING CAPACITOR
COMPONENT
※：Optional according to model
O U T P U T
I N P U T
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HP
ITEM
GRAPHICS
CODE
※：Optional according to
DESCRIPTON
REMARKS
ITEM
GRAPHICS
CODE
DESCRIPTON
REMARKS
1. Turn the Switch to position "1".
2. Correctly and firmly connect the pipes.(See Connection Drawing)
3. Connect the unit to the right power supply(as shown on the Name Plate), turn the
power on(I), and the BYPASS switch to MANUAL.
4. Hit the START button to start the unit.
5. Open the valve of the refrigerant tank.
6. Open the liquid valve of the manifold gauge.
7. Slowly turn the Switch to position "2" for faster recovery.
8. Turn the BYPASS switch to "AUTO" so that the unit will automatically stop
when finished.
Purge operation now.
9. When liquid recovery is finished, turn the Switch to position "2" for faster recovery.
10. The unit will automatically stop when recovery is finished, please do the
HVAC Syetem
Liquid
Vapor
Manifold
gauge set
Input
Filter
Scale
Tank
Liquid valve
Vapor valve
Output
O.F.P. cable
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ST
① If compressor impact occurs, turn the Switch to position "1" till the impact stops.
② If the power goes off when the unit is working, and the unit cannot restart, you can
turn the Switch 2 rounds and stop at position "1", turn the power on and hit the Start
button to start the unit.

1. Turn the Switch to position "1".
2. Correctly and firmly connect the hoses.(See Connection Drawing).
3. Turn the power on, turn the BYPASS switch to MANUAL and hit the start button.
4. Open the gas valve and liquid valve of the refrigerant tank.
5. Turn the Switch to position "2" to start fast liquid recovery.
HVAC Syetem
O.F.P. cable
Scale
Tank
Vapor
Liquid
Input Output
Filter
Liquid valve
Vapor valve
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After each use the unit must be purged, make sure there is no refrigerant left in the
unit. Liquid refrigerant remained may expand and damage the components.

7. Close the gas valve of the refrigerant tank and then turn the power off.
6. When the showing of electric scale is not changing or changing very slowly,
means that the liquid recovery is finished, and it's time for gas recovery.it
(The hoses need to be re-connected and please follow the Purge Operation to
the gas refrigerant.)purge
8. Close all the valves and disconnect all the external hoses. Connect the hoses
to the Recovery Operation to do the gas refrigerant recovery.according
9. Purge.
1. Shut off by High Pressure
Protection,red light ON
2. Low Pressure Protection,greed
light ON(recovery not finished)
3. 80%O.F.P cable bot well
connected
1. Lower the pressure of the unit
2. Check if the hoses are well
connected
3. Check the connection
4. Turn the switch two rounds and
stop at position "1"
1. External pressure is too high
2. Motor failure or other
component damage
1. Turn the Switch 2 rounds and
point to position "1" , and then
restart
2. Factory service is needed
1. High Pressure Protection caused
by mis-operation shuts the unit off
like：
Outlet valve closed,refrigerant
tank valve closed
2. Motor Overload Protection shut
the motor off
3. 80% Over Filling Protection,
red light ON
4. Recovery finished,green light ON
5. Overload during liquid recovery
process,light flashes and off
1. Read carefully the Operation
Manual and follow the instructions
while operating
2. Give the motor some time to restart
3. Follow the Purge Operation to do
the Purging
4. Turn the Switch 2 rounds and point
to position"1",restart the unit
5. Turn the Switch 2 rounds and stop
position"1"while recovering liquid
refrigerant
1. The pressure of the refrigerant
tank is too high
2. Piston ring of the compressor is
damaged
1. Cool the tank down can help
bringing down the pressure
2. Factory service is needed
1. Hose connection loosened
2. Leakage of the unit
1. Tighten the connecting hoses
2. Factory service is needed
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