OPERATING INSTRUCTIONS
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10001000
PSI
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53000-70
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NITROGEN PRESSURE REGULATOR LEAK TESTING KIT
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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NITROGEN PRESSURE REGULATOR LEAK TESTING KIT
• Pressure regulation of Nitrogen (N2)
• Pressure testing refrigeration systems
• Leak-down testing of refrigeration systems
• Purging of refrigeration systems
• Only for use on nitrogen pressure cylinders
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250
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1500
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1000
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2
4000
50
500
300
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PSI
0
Bar
53000-300
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700
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800
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900
60
10001000
PSI
Bar
70
53000-70
English
3
12
70
60
60
50
60
40
40
40
30
20
Silicone
Anti-Flutter
20
0
20
-20
0
-20
10
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14
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1000
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4000
50
500
300
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PSI
0
Bar
53000-300
53001
CGA580 (US)
1
80
90
80
100
80
110
95
100
a
ºF
4
D
R12
3
120
R
1
R
A
ºF
T
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350
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psi
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5
3
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8
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10
700
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50
100
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800
00
0
900
60
10001000
PSI
Bar
70
53000-70
250
200
300
140
160
160
150
120
140
180
100
120
100
100
180
80
80
Silicone
60
Anti-Flutter
200
60
40
ºF
40
50
R12
20
195
ºF
a
4
3
1
R
450
0
psi
8
5
5
500
0
0
15
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1500
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100
C
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M
O
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1000
O
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4000
50
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500
0
300
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10001000
PSI
PSI
0
Bar
70
Bar
53000-70
53000-300
53002
DIN477#6 &
DIN477#10
(includes adapter
to convert
DIN477#6 to
DIN477#10
(France/Germany)
350
400
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1500
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1000
M
4000
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500
300
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PSI
0
Bar
53000-300
53003
BS3 (England)
4
5
7
25
27
28
30
32
20
400
35
R404A
300
500
R407C
15
R507
R134a
R22
40
200
6
R410A
600
10
5
42
100
45
700
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53000-42
psi
50
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800
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900
60
10001000
PSI
Bar
70
53000-70
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E
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300
900
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60
10001000
PSI
PSI
0
Bar
70
Bar
53000-70
53000-300
53004
AS2473.2
(Australia)
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PSI
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53000-300
5-UNI11144
(Italy)
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70
53000-70
No. Description
1. Cylinder Connection
2. High Side Gauge of Nitrogen Regulator (input)
3. Low Side Gauge of Nitrogen Regulator (output)
4. Output Control Valve
5. Charging Hose Connection on Regulator
6. Pressure Regulator T Handle
7. Leak Testing Gauge Assembly
8. Connection to Refrigeration System
9. Leak Testing Ball Valve Lever
10. Charging Hose Connection on Leak Testing Assembly
11. Charging Hose
12. Charging and Testing Manifold (not included in kit)
13. Low Side Valve on Manifold
14. Low Side Hose (blue)
15. Charging Hose (yellow)
TECHNICAL DATA:
Connection:
• Model # 53001: CGA580 (US)
• Model # 53002: DIN477#6 & DIN477#10 (includes adapter to convert
DIN477#6 to DIN477#10 (France/Germany)
• Model # 53003: BS3 (England)
• Model # 53004: AS2473.2 (Australia)
Pressure Regulator:
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• 100 - 4500 PSI (7 - 300 Bar) High side
• 30 – 1000 PSI (2 – 70 Bar) Adjustment range
• Integrated Shutoff Valve
Safety Relief Valve: 725 PSI (50 Bar)
Gauge Diameter: 2 5/8 (68 mm) Not including guard
WARNINGS
• Only use with nitrogen gas (N2).
• The regulator is not to be used with liquid nitrogen.
• Do not modify the regulator. Doing so could result in personal injury.
• Do not over-pressurize the regulator. This could cause leakage, part damage or
personal injury due to bursting of pressure-containing parts.
• Keep the regulator clean and free of oil.
• Do not use a damaged regulator. Except for replacing the gauges, do not
attempt to repair the regulator.
• Failure to follow instructions can result in personal injury and/or damage to the
equipment.
• Do not install this regulator where service conditions can exceed the
specifications of any applicable local, state, or federal codes and regulations.
• Wear safety glasses and gloves.
REGULATOR CONNECTION AND USE
Note: The nitrogen regulator can be used with a charging hose and leak testing gauge
assembly or a charging and testing manifold.
• Make sure the cylinder connection (1) is clean and free from damage.
• Turn the T handle (6) all of the way out (counter clockwise, looking from the bottom).
• Open the output control valve (4) to release any pressure, and then close it.
• Install the nylon gasket or O-ring, if the connection requires one.
• Install the regulator onto the cylinder. Do not over tighten the nut on gasketed
connections.
• Connect the yellow charging hose (11) from the regulator to the leak testing gauge
assembly, making sure the ball valve connection (9) is closed.
(If using a manifold, connect the yellow charging hose (15) of the manifold to
the regulator.)
• Connect the other end of the leak testing gauge assembly (8) to the system.
(If using a manifold, connect the low side hose (14) from the manifold to the system.)
• Slowly open the cylinder valve. The high side gauge (2) should read the
cylinder pressure.
• Adjust the regulator pressure by turning the T handle (6) clockwise until the required
pressure (based on the system’s refrigerant) is shown on the low side (output) (3)
pressure gauge.
NOTE: This is a non-reliving regulator. To adjust the output pressure lower, some nitrogen
will have to be released from the output (e.g. with no hoses connected, turn the T handle
counter-clockwise, then open the output control valve and close it. The output gauge
should read a lower pressure.)
• If using the leak testing gauge assembly, turn the red needle to the required
refrigerant pressure.
Testing Range of Systems
R134a 260 - 320 psi 18 - 22 bar
R404A 405 - 465 psi 28 - 32 bar
R404C 405 - 465 psi 28 - 32 bar
R507 405 - 465 psi 28 - 32 bar
R22 405 - 465 psi 28 - 32 bar
R410A 550 - 610 psi 38 - 42 bar
• Open the output control valve (4) and open the ball valve (9) on the leak testing
gauge assembly for the nitrogen to flow into the system.
(If using a manifold, open the output control valve (4) and the low side valve
(13) on the manifold.)
• Make sure the required pressure is available on both gauges. (You may need to
turn the T handle (6) on the regulator to adjust to the required pressure.)
• Once the pressure is equalized (make sure the black needle is aligned with the red
marker on the leak testing gauge assembly) close the ball valve connection (9).
(If using a manifold, close the low side valve (13) on the manifold making note
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of the pressure when the valve is closed.)
• Close the output control valve (4) on the regulator
• Disassemble the yelllow charging hose (11) from the regulator and leave the
system for a period of time (time is based on the size of the system.)
• After some time, look at the gauge, if there is a leak in the system the pressure
will have dropped from the original settting.
REGULATOR REMOVAL
• Turn the cylinder valve off.
• Relieve the pressure on the regulator by opening the output control valve (4).
Both gauges should read zero.
• Slowly loosen the cylinder connection. There may still be some pressure
between the regulator and cylinder.
• Completely remove the regulator.
• Clean and store the regulator in its box to prevent damage.
WARNING: This product contains one or more chemicals known to the State of California to cause
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cancer, birth defects or other reproductive harm.
Test Equipment Depot - 800.517.8431
99 Washington Street, Melrose, MA 02176
TestEquipmentDepot.com
24
53010-INST-INTL
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