SPX Hankinson HHE Series Instruction Manual page 24

7.4 Front Panel Overlay – Level 1 Controller
Left tower pressure
switch LED:
On=switch closed
Off=switch open
Left tower drying LED
Left purge valve LED
On=valve open
Off=valve closed
Left tower regenerating
LED
Filter service /
maintenance LED
Operating mode LEDs
ISO Class 1 – 4
Operating mode
selector switch
Operating mode LED
Manual (test) mode
Communications icon
Power On LED
Power On / Off Switch
-100°F/-73°C
-40°F/-40°C
-4°F/-20°C
+38°F/+3°C
Front Panel Overlay – Level 1 Controller
(NOTE: Figure is representative of Standard Pressure Models 40 through 3000.)
(NOTE: Overlay for Standard Pressure Models 4100 & 5400 depicts a different inlet
valve and outlet/purge circuit. Overlay for High Pressure Models 40 through 450
depicts a different inlet valve circuit.)
Figure 7-1
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Filter service /
maintenance LED
Filter service /
maintenance LED
Right tower pressure
switch LED:
On=switch closed
Off=switch open
Right tower drying LED
Right purge valve LED
On=valve open
Off=valve closed
Right tower
regenerating LED
Energy (purge) savings
LEDs
Energy savings icon
Energy/purge savings
selector switch
Maintenance / service
reminder LED
Alarm LED
Reset switch for alarm
and maintenance
reminder – Advance
switch for manual cycle