31 english, Operating guidelines, Using the control panel – Robinair 17801B Recovery, Recycling, Recharging Unit User Manual
Page 33
Model 17800B/17801B Recovery/Recycling/Recharging Unit
31
ENGLISH
USING THE CONTROL PANEL
MAIN POWER Switch — Supplies electrical power to the control panel.
Digital Display — Shows the time programmed for vacuum, and the weight of
refrigerant programmed for recharging. Detailed instructions for programming the
digital display follow this section.
Air Purge Indicator — Shows when non-condensables need to be purged from
the tank.
LIQUID/VAPOR Indicator — Shows if liquid or vapor refrigerant is being re-
covered.
System Oil Indicator — Shows when the system oil separator is full and an oil
drain needs to be performed.
Low-side Manifold Gauge — Connects to an A/C-R system and shows the
system’s low-side pressure.
High-side Manifold Gauge — Connects to an A/C-R system and shows the
system’s high-side pressure.
High-side Valve — Controls the high-side flow from the A/C-R system through
the unit.
Low-side Valve — Controls the low-side flow from the A/C-R system through
the unit.
Air Purge Valve — Controls the release of non-condensables from the tank.
Operating Guidelines
Diagram of Control Panel
Low-side Gauge
High-side Gauge
High-side Valve
Liquid/Vapor Indicator
Display
Main Power Switch
Air Purge Valve
Keypad
Low-side Valve
Tank Pressure Gauge
INST0919
Unit Circuit Breaker
(17800B only)
System Oil
Indicator
Oil-less
Compressor
Protector
Tank Temperature Gauge