Cleaning The Tank - Thermolec ACU-STEAM User And Maintenance Manual

8.

Cleaning the tank

As with any device evaporating water, some minerals normally dissolved in the water may create deposits
inside of the unit. Even though the unit is draining and cleaning itself during normal operation , it will require a
bit of maintenance from time to time.
WARNING :
 The water tank and its contents can become extremely hot. Please be careful when you handle it.
 The tank may have water inside.
8.1 Since the tank is drained when the demand of the humidistat has been satisfi ed, there should be
approximately one inch of water if the unit is not operating. But if the humidistat is calling for steam and the
water is boiling, turn down the humidistat. The humidifi er will stop and drain. Please note that when using an
ACU-STEAM electronic humidistat, if the relative humidity is extremely low the humidifi er may still run with the
knob at the minimum setting because of a range limiter inside the cover. If this occurs you will need to remove
the humidistat cover by pulling it off and turn the knob completely counter-clockwise. The humidifi er should
now stop and drain. Wait until the unit has cooled before proceeding with the following steps.
8.2 Before doing anything, TURN THE MAIN POWER OFF.
8.3 Remove the cover by turning the two 1/4 turn screws to the left.
8.4 Unplug the white quick connect wire connected on the water pan at the bottom of the unit. This wire is
connected to the overfl ow sensor. Please see Fig. 8a.
White Wire
2. Pull
1. Lift
Overflow Pan
Fig. 8a
Main drain Tube
Overflow Sensor
Overflow
Drain Tube
Rigid Drain Pipe
Page 8