16
cycling refrigerated air dryer
R
1
Electrical connection
1. Connection : Use conductors which can carry the maximum current required at the maximum ambient
operating temperature, according the type of installation chosen (see indication on the electrical
diagram). Use only UL marked copper cables in conformity with NEC (National Electrical Code) and CEC
(Canadian Electrical Code).
2. Appropriate protection should be installed to avoid over current and possible electrocution due to short-
circuit before installing the air dryer.
3. Proper grounding should be installed.
4. Permissible operating voltage range: ± 5%
5. Refer to the electrical schematic and direct any questions to
nano-purification solutions
technical
support.
Function test
Start the air dryer after the following checks are made:
Inspection of the components:
1. Is there a problem in the air system and electric circuit?
2. Has the by-pass circuit valve (optional) been closed?
3. Is the purge system valve open?
4. Is the compressed air pressure sufficient?
5. Is there a differential between the permissible rated voltage and the interrupting capacity of the fuses
and the circuit-breaker?
Operating procedure
Press the “ON” power button (press the button of the controller in the front and hold for 5 seconds on CAREL
controllers)
We recommend to start the dryer, prior to opening up the air inlet and outlet valves for five minutes. After
starting the unit and running it for five minutes slowly pressurize the dryer to avoid any possible damage.
The condensate drain should be cycled to ensure functionality and then slowly open the outlet valve to the
system.
(If compressed air enters the dryer quickly, the pressure could damage parts or instruments).
Important
Wait for more than 5 minutes before restarting the dryer.
2.6 operation
Summary of Contents for NXC 0020
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Page 61: ...notes...
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