Gardner Denver RNC Series, Instruction Manual

Page: 7 / 24

7
2.7 Electronic Demand Drain –
I-Controller Level 3
A. An automatic electric demand drain (EDD)
discharges condensate removed by the
separator.
B. All standard I-Controller Level 3 models are
supplied with one EDD. Models with the
additional (optional) cold coalescing filter are supplied
with a second EDD.
C. Models 200-750
For manual draining, convenient dryer depressurization,
and EDD service, a three-way valve assembly has been
installed at the bottom of the moisture separator (and
cold coalescing filter where applicable). Review the
following for proper drain function:
•
Automatic Draining - Valve handle should be
positioned parallel to the valve body (as shown), with
the arrow on the handle pointing toward the EDD.
In this position, condensate will flow from the bowl
to the EDD.
• Drain Isolation (Shutdown) - Valve handle shall be
turned perpendicular to the valve body (rotate 90°).
In this position, condensate flow is shutoff.
• Manual Draining - Drain valve handle shall be rotated
slightly past the drain isolation position to allow
throttling through the valve for manual discharge
and depressurization.
•
NOTE:
The quick disconnect fitting allows removal
of the entire drain assembly.
however, the
unit must be depressurized prior to
disassembly or serious injury may occur.
NOTE:
Discharge is at system pressure. Drain line should be
anchored.
NOTE:
Condensate may contain oil. Comply with applicable
laws concerning proper disposal.
D. Verify that isolation valves are open. If the drain fails to
discharge after the valve is energized, the electronic
control circuit will repeatedly energize the valve in an
attempt to clear the discharge port. If, after 60 seconds,
the drain still fails to discharge, the control circuit then
switches to the alarm mode. In this mode the valve
is de-energized and the red alarm light is activated on
the drain and the dryer controller. The valve is then
automatically energized every 4 minutes for 5 seconds.
Check the drain operation. Push drain (push-to-test)
button on the Energy Management Monitor control
board to energize drain. A flow of condensate and/or air
should be present at the drain outlet. The alarm mode
automatically clears after the drain returns to normal
operation.
Programming Instructions
(CONFIGURATION or UNIT SET UP modes only)
1. Press (Right-Arrow) or (Left-Arrow) to select from the
following Main Menu items: OPERATION, MAINTENANCE,
CONFIGURATION, UNIT SET UP
2. Press the (ENTER) key to access the sub-directory of the
Main Menu item of your choice.
Note: Press (ENTER) repeatedly to sequence through
the sub-directory text displays as listed in Table 3.
3. To reprogram your selection, press and release and/or
hold down the (+) or (-) key until you reach the desired
value
4. Press (ENTER) to accept the new setting.
NOTES:
a) Display will automatically return to normal operating
mode 30 seconds after last key is depressed.
b) Programming automatically reverts back to prior settings
in 30 seconds if (ENTER) is not depressed.
Start-up Instructions - I-Controller Level 3
(Continued from Section 2.2)
1. Energize dryer.
A. Green POWER ON light will illuminate.
B. VFTD will read “GARDNER DENVER IC3 (version)” Text
display automatically sequences at 3 second intervals
in the following order:
a. A MBIENT AIR TEMP (°F or °C)
b. INLET AIR TEMP (°F or °C)
c. TIME/DATE (hours: minutes: seconds/month/
day/year)
d. DRYER OFF or ON (status)
e. DE W POINT TEMP (°F or °C)
C. LEDs – The GREEN Thermometer LEDs on the Process
Diagram will illuminate when the corresponding
temperature point is shown in the VFTD.
2. Depress Green (START) button.
A. The Green “COMPRESSOR ON” panel light
and process diagram LED will illuminate.
NOTE:
If dryer is started while “DRYER OFF” is displayed
within the VFTD, it will change to “DRYER ON” with the next
display rotation.
Table 3
Operation Maintenance Configuration Unit Set Up
(view) (view) (programmable*)
(factory
setting)
(programmable*)
(factory
setting)
Dew Point
Temp (°F/°C)
Hours
to Service
Gardner Denver
IC3 Ver (xxx)
n/a
*Dew Point Set Pt
(50°F-95°F)
50°F/
10°C
Ambient Temp
(°F/°C)
Total
Hours
*Set Language Eng.,
Spanish, French
English
*Ambient Set Pt
( 95°F-122°F)
105°F/
41°C
Inlet Air Temp
(°F/°C)
*Set Date
MO/DA/YR
Current
*Inlet Air Set Pt
(95°F-140°F)
105°F/
41°C
HR:MIN:SEC
MO/DA/YR
*Set Time
HR:MIN:SEC
Eastern
Standard
*Service Interval
(0-4000 Hours)
2000
Hours
Dryer
ON (OFF)
*Set Temp
°F/°C
F