Cag purification LTE3 HGV, Installation, Operation, Maintenance And Parts Manual

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GB
5.11 DMC6 AIR DRYER CONTROLLER
4 5 2 3 1 6
ON
°C
- +
COM B D N L
Probe-Sonde
A B C D E F
DIPS
Trimmer
Régulateur
The DMC6 Air Dryer Controller controls condensing temperature and
drain valve. The activation of the condenser fan is driven by means of
a probe located at the end of the condenser, while a cyclic electronic
timer drives the condensate drain solenoid valve at regular intervals.
The DMC6 Air Dryer Controller is adjusted during the final test of the
dryer. In case of particular requirements concerning the operation
management, the user can change the setting of the programmed
parameters.
The parameters which can be set up are the following :
SET-POINT SET-UP
Set-Point is the activation temperature of the condenser fan.
Set-Point is factory standard setted at 84.2 to 86 °F (29 to 30 °C), with a fix hysteresis -
∆ t - equal to 3.6 °F
(2 ºK). In this way, the fan is activated when the temperature rises over 84.2 to 86 °F (29 to 30 °C) and
deactivated when the temperature falls below 80.6 to 82.4 °F (27 to 28 °C).
To adjust the Set-Point follow next steps:
•
Put your thermometer probe in contact with the condenser outlet pipe close to the DMC6 probe.
• Switch ON the dryer and wait few minutes.
•
Using a small screw driver rotate the set-point adjusting trimmer so the fan starts at a temperature
between 84.2 and 86 °F (from 29 to 30 °C). By rotating the trimmer clockwise, the set-point will increase
up to a top value of approx. 95°F (35°C); by rotating the trimmer counter clockwise, the set-point will
decrease down to a minimum value of approx 77°F (25°C).
NOTE : Any non authorised intervention will void the warranty.
DRAINING TIME SET-UP
It is possible to adjust two times:
•
T
ON
- activation time of the condensate drain solenoid valve.
•
T
OFF
- pause time between two consecutive activation of the condensate drain solenoid valve.
To modify these two times, simply move the 6 micro-switches (DIPS) following the schedule below:
T
OFF
- pause time T
ON
- activation time
DIPS D+E+F D+E D+F E+F F E D C B A
Time [sec] 210 180 150 90 30 60 120 1 2 4
DIPS A, B & C adjust activation time (T
ON
).
DIPS D, E & F adjust pause time (T
OFF
); pause time can be cumulated (i.e. DIPS E+F, D+F, D+E and D+E+F).
Standard setting : DIP B and E set to ON equal to T
ON
= 2 sec and T
OFF
= 60 sec. Drain solenoid valve will
be activated 2 seconds every 60 seconds.