Robinair AC375C Refrigerant Recovery, Recycle, Recharge Unit - Manual (Page 29)

Recover/Recycle/Recharge Unit
27
Maintenance
The filter-drier inside the unit removes acid, particulates, and moisture from
refrigerant during the recovery function. To provide adequate contaminant
and moisture removal, the filter-drier must be replaced after every 68 kg
(150 lbs.) of refrigerant recovered. The following will appear in the display:
Use the following steps to replace the filter-drier.
NOTE: For maximum unit performance, use only SPX/ROBINAIR filter-driers.
To avoid service delays, keep extra filter-driers on hand. Refer to the Re-
placement Parts section of this manual.
1. Plug the power cord into a correct voltage outlet.
2. Verify the service hoses are NOT connected to a vehicle.
Replacing the Filter-Drier
CHANGE FILTER
Control Panel
3. On the control panel, open both panel valves.
4. Press the Menu key ( ) until RECOVER XX.XX displays on the screen.
5. Press the Start/Stop key ( ).
6. Watch the low-side gauge. When the gauge pressure reaches 34 kPa
(10 in. Hg) vacuum, close both panel valves.
7. Press the Start/Stop key ( ).
8. Remove the power cord from the outlet.
Start/Stop Key
Oil Drain Valve
Display Screen
Menu Key
Up Arrow
Down Arrow
ISV Pressure
Gauge
Low-Side
Gauge
High-Side
Gauge
Low-Side
Panel Valve
High-Side
Panel Valve /
Oil Inject
Power Switch