User`s manual

ML180-MLT350 Dehumidifiers
190TGB-1034-A 3 Operation 19
5. Operate the run/stop switch to the position and check that
the unit stops and that the unit running indicator goes out.
For details on the Control panel, see figure 3-1, Control Panel.
3.5.2 Automatic Mode - Humidistat
For the unit to operate in the AUTOmatic mode a one-step humidistat
must be installed and correctly connected to the unit. For details see
section 2.12, External Humidistat.
1. Set the mode switch to the AUTO position.
2. Adjust the humidistat set point for the minimum relative humidity
(RH) value. Operate the run/stop switch to the position.
Ensure that the unit running indicator is lit and the unit is
operating.
3. Slowly increase the humidistat set-point and check that the unit
switches off when the set-point matches the RH in the room where
the humidistat is installed. Check that the unit running indicator
remains on.
4. Slowly decrease the humidistat set-point and check that the unit
switches on when the set-point falls below the RH in the room where
the humidistat is installed.
5. Operate the run/stop switch to the position and check that the
unit stops and that the unit running indicator goes out.
6. Reset the humidistat to the desired set-point.
For details on the Control panel, see figure 3-1, Control Panel.
3.5.3 Automatic Mode - RH98
If the unit has been supplied with a factory fitted RH98 control system
(option) the external transmitter must be installed and correctly
connected to the unit. The same location requirements are valid for
the humidistat and the RH98, see section 2.12, External Humidistat. For
details on operation see section 7.4, RH98.
1. Set the mode switch to the AUTO position.
2. Adjust the RH98 set point for the minimum relative humidity (RH)
value. Operate the run/stop switch to the position. Ensure
that the unit running indicator is lit and the unit is operating.
3. Slowly increase the RH98 set-point and check that the unit switches
off when the set-point matches the RH in the room where the
humidity transmitter is installed. Check that the unit running
indicator remains on.
4. Slowly decrease the RH98 set-point and check that the unit switches
on when the set-point falls below the RH in the room where the
humidity transmitter is installed.