Refco 12900 Anleitung

Charging Station 12900 with charging scale and
interchangeable refrigerant scales
1. Preparing the charging station
Filling of oil into the pump:
Open oil plug on top the vacuum pump and fill oil up to half level of the sight
glass.
Drainage of vacuum pump oil:
Open drain plug at the back of the pump and drain the used oil.
Please note, the oil must be changed after running time of 20 hours (see
instructions vacuum pump)
Adjusting of gauges:
Prior to the use of the station all gauges must be adjusted to zero with the
adjusting screws.
Clip the requested scale on the gauges.
2. Evacuation of a refrigeration system
Connect blue charging hose on low side port of the manifold
•
Connect the other end of the charging hose on the low pressure side of the
•
cooling system
Connect red charging hose on the high side port of the manifold
•
Connect the other end of the charging hose of the high pressure side of the
•
cooling system
Connect the hose from the vacuum pump to the vacuum port of the manifold
•
(yellow valve)
Switch on vacuum pump
•
Open blue, yellow and red valve
•
When pressure indication in vacuum gauge is below 0, open black valve
•
underneath the vacuum gauge
Evacuate for approximately 20 minutes until the reading in the vacuum gauge
•
remains stable between 0 and 500 mbar, the evacuation is then terminated.
The normal evacuation time is at least 20 minutes.
Close all valves and switch of the vacuum pump
•
3. Filling a system
Put refrigerant can or tank on the charging scale and connect it with a
•
charging hose on the port for refrigerant of the manifold (black valve)
Open valve on can or tank and black valve
•
Switch on charging scale and adjust to zero
•
Connect blue hose with low pressure side to the refrigeration system (for
•
filling on low side)
Open blue and black valve
•
The refrigerant is now flowing into the refrigeration system
•
Check the filling quantity on scale
•
When filling quantity has been reached, close all valves
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REFCO Manufacturing Ltd.
Industriestrasse 11
CH – 6285 Hitzkirch
Telefon +41 41 919 72 82
Telefax +41 41 919 72 83
info@refco.ch www.refco.ch
HVAC/R
Service Products