Cycle Sequence Steps - Gardner Denver DGH Series Instruction Manual

7. Controller – Level 2
Program Step
Left tower status drying
Right tower status regen.
Left tower
closed
pressure switch
Right tower
closed
pressure switch
Left inlet solenoid off
Left purge solenoid off
Right inlet solenoid off
Right purge solenoid off
Left inlet valve open
Left purge valve closed
Right inlet valve open
Right purge valve closed
Temperature display -
none
thermistor location
7.11.1 Test Mode Screen 1 – Step 1
'
TEST MODE STEP 1
OK TO EXIT NOW
•
No temperature display on this screen.
•
Press S to advance to screen 2.
7.11.2 Test Mode Screen 2 – Step 2
TEST MODE STEP 2
XX°C XXX°F
•
The left tower drying light is blinking to indicate the
thermistor location (upper left) that corresponds to the
temperature display.
•
Press S to advance to screen 3.
7.11.3 Test Mode Screen 3 – Step 3
TEST MODE STEP 3
XX°C XXX°F
•
The right tower regenerating light is blinking to indicate the
thermistor location (lower right) that corresponds to the
temperature display.
•
Press S to advance to screen 4.
7.11.4 Test Mode Screen 4 – Step 4
TEST MODE STEP 4
XX°C XXX°F
7. Controller – Level 2
1 2 3
drying drying
regen. regen.
closed closed
closed at start,
closed
open at end
off off
off off
on on
off on
open open
closed closed
closed closed
closed open
upper left lower right

Cycle Sequence Steps

4 5
drying regen.
regen. drying
closed closed
open at start,
closed
closed at end
off off
off off
on off
off off
open open
closed closed
closed open
closed closed
upper left none
Table 7-2
•
The left tower drying light is blinking to indicate the
thermistor location (upper left) that corresponds to the
temperature display.
•
Caution: Do not advance to step 5 until the right tower
has fully pressurized.
•
Press S to advance to screen 5.
7.11.5 Test Mode Screen 5 – Step 5
TEST MODE STEP 5
OK TO EXIT NOW
•
No temperature display on this screen.
•
Press S to advance to screen 6.
7.11.6 Test Mode Screen 6 – Step 6
TEST MODE STEP 6
XX°C XXX°F
•
The right tower drying light is blinking to indicate the
thermistor location (upper right) that corresponds to the
temperature display.
•
Press S to advance to screen 7.
7.11.7 Test Mode Screen 7 – Step 7
TEST MODE STEP 7
XX°C XXX°F
- 36 –
6 7
regen. regen.
drying drying
closed at start,
closed
open at end
closed closed
on on
off on
off off
off off
closed closed
closed open
open open
closed closed
upper right lower left
8
regen.
drying
open at start,
closed at end
closed
on
off
off
off
closed
closed
open
closed
upper right