7
2 - TECHNICAL PARAMETER
3 - OPERATING ISTRUCTION
Item No.
Gauge
Diameter
Gauge
Class
Pressure
Scale
Manifold
fittings
Hose
For
model
R32 - R410
68 mm
1,6
-30-500psi
1/4”
Red and blu: 5/16”,
2x120 cm Yellow: 1/4”,
1x120 cm
4.1 PRESSURE TESTING
4.1.1 Connect blue hose to the low side of system, connect red hose to the high side of
system.
4.1.2 Connect blue hose to the low side of system, connect red hose to the high side of
system.
4.1.3 Running the system, read the testing pressure indicated on manifold gauges.
4.1.4 After testing, turn off the system. Then disconnect the hoses from the system and open
all valves, make sure do not vent refrigerant into the atmosphere.
4.1.5 In arder to prevent venting the refrigerant ìnto the atmosphere please use a recovery/
recycling machine to evacuate any refrigerant remaining in the hose or manifold gauges.
4.2 EVACUATION OF A SYSTEM
4.2.1 Connect blue hose to the low side of system, connect red hose to the high side of
system and connect yellow hose to vacuum pump.
4.2.2 Open both valves.
4.2.3 Turn on the vacuum pump.
4.2.4 Check pressure on low pressure gauge far 3 to 5 minutes, if vacuum reached closed
both vales then turn of the vacuum pump.
4.2.5 Observe the pressure on the low pressure gauge if the pointer is stick to “- 1” far 3 to 5
minutes, the evacuation of a system is succeed. lf not, repeat the steps from 4.2.2 to 4.2.4.
4.3 FILLING OF A SYSTEM AFTER EVACUATION
4.3.1 Keep all valves closed. Disconnect the yellow hose from the vacuum pump and connect
this hose to a refrigerant container.
4.3.2 Open valve on refrigerant container.
4.3.3 Open high/low pressure valves. The system is now being filled with refrigerant. If the
flow of the refrigerant is too slow or insufficient the compressor of the unit can be turned on
(suit for r134a refrigerant) to speed up the process.
4.3.4 If the correct filling quantity has been reached close all valves.
4.3.5 After testing, turn off the system. Then disconnect the hoses from the system and open
all valves and then make sure do not vent refrigerant into the atmosphere.
4.3.6 In order to prevent venting the refrigerant into the atmosphere please use a recovery
/recycing machine to evacuate any refrigerant remaining in the hoses or manifold gauges.
4.3.7 Manifold gauges are high precision measuring instruments. After use, store the manifold
gauges always in the carrying case.
Accessories for
Air Conditioning
Ventilation
Solutions
Air Curtains and
Accessories
Accessories
For Heating
Instruments &
Tools
Multi - Zone
Air Control System
