Thermo King V-200 10, User Manual

Page: 99 / 112

TK 56430-18-IP-EN
99
• The regulator should have two gauges; one for tank pressure and one for line pressure. The equipment allows leak
testing, purging, or dehydration to be done safely.
Procedures
Use dry nitrogen (N) for dehydration, pressure testing, purging, and soldering. Always use the proper equipment and
procedures.
1. Attach a gauge manifold set to the system.
2. Close both hand valves on the gauge manifold.
3. Connect the center hose from the gauge manifold to pressure regulator outlet on the nitrogen supply bottle. Adjust
the pressure regulator to the correct pressure for the required procedure. Refer to ( Table 10, p. 99 ).
4. Purge the system from the high side to the low side.
Table 10. Testing Pressures
Procedure Maximum Pressure
Bar
psig kPa
Leak Testing Low Side 10.3 – 12 150 - 175 034 - 1206
Leak Testing High Side 10.3 – 17.2 150 - 250 034 - 1724
Purging Dehydration
0.7 – 1.4 10 - 20 69 - 138
Soldering 0.3 – 1.4 5 34
Typical Pressurized Gas Bottle with Pressure
Regulator and Gauges
1. Pressure Regulator Outlet (Pressure Test Line to
System)
2. Safety Valve
3. Pressure Regulator
4. Line Pressure
5. Tank Pressure
6. Tank
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