Munters IceDry 30, Original Instructions Manual

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IceDry 30
5.5 Operating the unit
5.5.1 General
CA CA CAUTION! UTION! UTION!
At initial start-up or when restarting after a service stop, the main power switch must have been on for at least 12
hours before starting. This is necessary to remove any ice build-up inside the unit.
CA CA
CAUTION!
UTION!
UTION!
Before starting the unit, the reactivation air inlet and wet air outlet must be thoroughly checked. Any ice must be
removed. To avoid malfunction, it is important to have clear air passage throughout the ductwork.
When the unit is installed into the freezer and the reactivation circuit is connected, the connections have
to be blocked until the unit can be started. If this is not done there is risk that there will be ice build up in
the reactivation piping.
Before starting the unit, make sure that the reactivation ducting is free of ice.
Power must be connected to the unit as soon as possible to keep the reactivation fan free of ice (heater
inside).
Unless the power is connected immediately upon installation, wait a minimum of 12 hours prior to the start
of the unit.
5.5.2 Start
1. Turn the main power switch to position " 1 " and check that the display is illuminated. The three lamps on
the electrical cabinet should flash twice as a check of lamp function.
2. Turn the mode switch to position " 1 ". Check that:
- The white lamp is on, which indicates that the unit is operating.
- The reactivation air fan and rotor drive motor have started, see section 6.4.3, Window 3, Motor status .
3. Leave the unit operating and check that:
- The temperature of the reactivation heater increases, see 6.4.1, Window 1, Reactivation temperature .
- The process fan starts when the wet air temperature reaches 40 °C.
5.5.3 Restart after power failure
When the power is removed from the unit, or there is a unit stop due to a unit malfunction, the reactivation
flow and heater is also stopped.
CA CA CAUTION! UTION! UTION!
Do not restart the unit without first leaving the reactivation heater on for 12 hours. Serious damage to the unit can
be the result. Without immediate action there is a risk that there will be ice build-up in the reactivation circuit.
To avoid the risk for ice to build up, the in and outlet openings have to be blocked so no moisture can enter
the circuit and condensate and freeze up. With high humidity values outside this will create a problem within
a few hours.
Contact Munters Service to discuss the best solution how to minimise the effects of a power supply failure.
17
Operation
190TEN-1049-H1307