Operation - Gardner Denver 9VXRD Series Instruction Manual

2.0 OPERATION

2.1 Minimum/Maximum operating conditions
A. Maximum inlet air pressure: refer to dryer serial
number tag
B. Minimum inlet air pressure: 30 psig (2.1 kgf/cm
C. Maximum inlet air temperature: 120°F (49°C)
D. Maximum ambient temperature:
Air-cooled models: 110°F (43°C)
Water-cooled models: 130°F (54°C)
E. Minimum ambient temperature: 45°F (7°C)
2.2 Start-up
A. Energize dryer. Green power on light will illuminate.
IMPORTANT: Energize dryer disconnect switch (provided
by others, sec NEC) 24 hours before refrigeration
compressor is started! Never use the disconnect switch
to shut-down the dryer for a extended period of time
(except for repair). Failure to follow these instructions
may result in a non-warrantable compressor failure.
NOTE: If there is no power to the control board for a
period of two weeks or more, it may return to the
default mode.
B. Program monitor
1. Language selection
a. Push Day of Week and Hour buttons simultaneously
until menu appears
b. Scroll to select language (choice of 5 available:
English, Spanish, French, Italian, and German) using
the Day of Week Button
c. Push Set/Run button to accept
2. Setting Functions (Clock, Schedule, and Service Reminder)
a. Push Set/Run button and hold for 3 seconds to set
clock
b. Set current time using: Day of Week, Hour, and
Minute buttons (24 hour clock)
c. Push Set/Run button to set schedule
d. Select day of week using Day of Week button
e. Select on or off with On/Off button then set time
using Hour and Minute buttons.
Repeat Steps b and c for the remaining days of the
week
Temperature
Indicator
Set/Run
Button
2 )
Operator
Interface
Display
Day of Week
Hour
Button
Button
NOTE: Scheduler will ignore programmed commands for 10
minutes after exiting program mode
f. Push Set/Run button to set service reminder
g. Use Hour and Minute buttons to enter the number
of operating hours (service interval) before service
reminder is initiated. Maximum setting is 4090 hours.
(Only hours that refrigeration compressor is
operating are counted)
NOTE: On dryers with air-cooled condensers, regular
condenser cleaning is recommended. Dirtiness of ambient air
at installation site will determine frequency of service.
Typically once a month is recommended. Dryers contain an
integral 3 micron filter. As the filter element accumulates
solid contaminants, differential pressure increases. Solid
particulate load in the compressed air supply will determine
frequency of service. Typically element changeout is
recommended at least annually.
h. Push Set/Run button to exit program mode
NOTE: If Set Mode is not exited after 30 seconds, Alarm light
will illuminate and TIME OUT will appear on the interface panel.
Dryer will resume previous operating mode.
Compressor-on
Power-on
Light
Light
Minute
On/Off
Button
Button
Alarm/
Service
Light
Reset
Button
Drain
Push-to-Test
Button
5