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Page 15
2008-12-03
3.7.2. MHTC Reflow System Overview
Figure 8. System Overview – MHTC Reflow
Functional description
The water tub is filled up to a preset upper level via the level-controlled supply valve. When
the water level in the tub drops below a certain limit, the level-controlled supply valve opens
until the upper limit is reached again.
The MHTC Reflow model provides multistep control by means of the MHTC Total Control
unit and the step valves (1, 2 or 3 step valves depending on the humidifier capacity). The
MHTC Total Control unit (for wall mounting) processes analog sensor/control signals and
uses them to control the step valves. This allows multistep control (1 to 3 steps depending
on the humidifier capacity) which improves control accuracy compared to the MHB Reflow
model.