Your new RHS 900 station represents the latest in equipment for servicing air
conditioning units (A/C units). The station is designed for refrigerants R12 and
R134a. It can, and must, only be used for one of these refrigerants.
RHS 900 is a test, recovery/recycling-(draining/cleaning), evacuation, oil/refrigerant charging station and is thus able to perform a total process cycle in
servicing A/C units for the automobile industry.
The recycling process is designed to follow SAE-standards J1989 and J2099 on
recycled refrigerant for A/C units.
The six processes - from test to charging - are performed by operating six
different process switches. This reduces the risk of error operation to a minimum.
After each evacuation, RHS 900 automatically performs a vacuum test and
indicates whether or not there is any leakage in the A/C unit. In addition, the
station incorporates an automatic process which ensures that subsequent processes
are performed fully automatically and in the correct sequence: evacuation,
vacuum test and refrigerant charging.
Constant monitoring ensures that the automatic process sequence does occur
correctly. Safety devices are built into the station to stop operation and indicate
faults in processes, e.g. excessively high pressure, overcharging of charging
cylinder.
During the recycling process a small quantity of oil is drained from the A/C unit.
On completion of the recovery process this quantity can be drained into a
measuring beaker. The same quantity of new oil must be filled into the A/C unit.
Refer to the A/C unit instructions and use only the type of oil specified.
The filter drier has a very high capacity (300 kg) and is easy to replace during
servicing.
A system built into the station ensures that non-condensable gases are automatically blown off and that the discharge of refrigerant to the atmosphere is kept to
a minimum.
Before using RHS 900, read these instructions carefully to ensure that the processes are performed correctly.
1. Always wear protective goggles and gloves when working with
refrigerant.
2. Do not allow refrigerant to come into contact with the skin or eyes.
3. Before disconnecting RHS 900 from the A/C unit, make sure that the
process is completed so that refrigerant does not escape to the atmosphere.
4. RHS 900 is for use only in dry indoor surroundings.
5. Disconnect the electrical supply before performing maintenance on RHS
900.
6. To reduce the risk of fire, avoid using an extension cord. If, however, an
extension cord is necessary, it must have a minimum cross-sectional area
of 2.5 mm
7. In the event of fire, remove any external refrigerant cylinders.
8. When oil which accompanies the refrigerant drained from the A/C unit is
tapped from the suction accumulator into the measuring beaker supplied,
ensure that it is handled according to existing national legislation. A
suitable container can be obtained from the refrigerant supplier.
9. Always brake the two front wheels of the station when parking.
23) Automatic process switch/lamp (green): cuts in the automatic
process and lights up when the connection is made.
24) Evacuation switch/lamp (green): cuts in the evacuation process
and lights up when the connection is made. After completed
evacuation, a vacuum test is carried out automatically. The vacuum
lamps light up to indicate “OK” or “Fault”.
25) Evacuation timer: Evacuation time can be set between 0 and 60
minutes.
26) Reset/test switch/lamp (green): cuts in the test process and lights
up when the connection is made.
27) Mains switch/lamp (white): on/off switch for mains supply to
station; lights up when the connection is made.
28) Recovery switch/lamp (green): cuts in the recovery process and