Cod. 710.0138.72.00 Rev.10
– 02.2022
© Copyright 2022 Gardner Denver - All rights reserved
7
– 11
3.1.4 REMOTE SIGNALING ALARM
The dryer control board is equipped with a dry contact for a remote alarm signal. This is normally open
contact: when an alarm is detected, this contact is closed.
Proceed as follows to activate a remote alarm output:
1. The User must review the diagram below.
2. Disconnect the dryer from electrical power supply, remove cover and left side panel.
3. Connect the alarm circuit to the terminal blocks (See PIC.2).
4.
Replace cover, left side panel and reconnect power.
Alarm Output relays electric features:
Max. 250VAC / 3A
– AC 15 (Amp. Inductive)
PIC.2
The activation of the above function is at the User’s discretion. The User will purchase all necessary installation material.
Any operation which needs access to the dryer must be carried out by qualified personnel.
3.2 BEFORE START UP
Before starting the machine, make sure that all operating parameters correspond to the nominal data.
The dryer is supplied already tested and preset for normal
operation, and it doesn’t require any calibration. Nevertheless,
it’s necessary to check the operating performances during the first working hours.
3.3 START UP
The operations specified below must be performed after the first start up and at each start up after a prolonged inactive
period of time due to maintenance operations, or any other reason.
1. Make sure that all instructions contained in chapters INSTALLATION SITE and INSTALLATION have been
observed.
2. Ensure dryer by-pass is open and air inlet/outlet valves closed. (if existing).
3. Activate power supply and press the ON/OFF switch on the control panel for at least 1 second.
(note there is a 2 minute delay before the dryer will start after the dryer is turned on).
Only on GDD130-160F
- Turn main power switch on position 1.
- Wait for 8 hours before starting the dryer
(the warranty is not valid if this procedure is not respected).
IF THE UNIT FAILS TO START MAKE SURE THAT PHASES ARE CONNECTED CORRECTLY.
4. Wait 5 to 10 minutes until machine has achieved its standard operating parameters.
5. Slowly open the air outlet valve and successively open the air inlet valve.
6. If existent, close the air by-pass valve.
7. Check if the condensate drain is working properly.
8. Check if all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power supply, use ON/OFF switch to stop the dryer. Otherwise wait 10
minutes before switching the dryer on again, in order to allow freon pressure to rebalance.
