Installation & Commissioning Manual:
Neos 100S, 20X, 30S, 35X, 40X, 50X
62-11165 Rev D
®
24
Evacuation, Leak Checking, and Refrigerant Charging (Final Step)
Evacuate the unit to 500 microns. Close off the vacuum pump valve and stop the pump. Wait
five minutes to see if the vacuum holds. This checks for residual moisture and/or leaks.
With a vacuum still in the unit, the refrigerant charge may be drawn into the system from a
refrigerant container on weight scales. The correct amount of refrigerant may be added by
monitoring the scales.
Make sure to use the correct
refrigerant for each refrigeration unit.
When the correct charge has been added, close the unit
manifold valves and disconnect the manifold gauges.
MODEL Refrigerant
Type
Refrigerant Charge
Pounds Kilograms
Neos 100S R134a 2.2 lb. 1 kg
20X R404a 3.10 lb. 1.4 kg
30S R134a 4.00 lb. 1.8 kg
35X R404a 3.30 lb. 1.5 kg
40X R404a 6.60 lb. 3.0 kg
50X R404a 7.05 lb. 3.2 kg
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