S&P MD, Инструкция по установке, эксплуатации и обслуживанию, Страница: 11 / 18

To operate in dehumidifying mode the switch on the front panel should be placed in the dehumidify
position, see figure 10. The dehumidifier will now operate until it is either turned off or the humidity in
the space falls below that set on the humidistat. The required level of humidity should be set by
adjusting the humidistat as required. It is recommended that the dehumidifier is not left running on
the minimum setting as this may reduce the humidity to an unacceptable level. A value between 50
and 60% is recommended for optimum comfort conditions and to minimise the potential of
discomfort for excessive moisture removal from building materials.
When the desired level of humidity is reached the compressor will stop. When the humidity rises the
humidistat will sense this and initiate the start sequence for the compressor. This includes a time
delay to prevent hunting of the compressor. Note that if the humidistat setting is reduced to allow the
dehumidifier to operate then the fan will operate immediately, followed by the compressor cutting in
after the delay period.
The speed of the fan can be changed from full to slow using the switch on the front panel, see figure
10.
At slow speed the dehumidification rate is lower than at full speed and the mixing of the air within the
space is reduced. The refrigeration circuit is also more sensitive to variations in changes in air
temperature and relative humidity, which has the result of reducing the operating envelope in which
the dehumidifier will operate.
It is therefore recommended that the dehumidifier be operated at full fan speed at all times. Slow
speed fan operation should only be chosen for short periods when the quieter operation of this mode
is necessary. When the room is then vacated the dehumidifier must be returned to full speed
operation.
Voltage Supply: 230V 4% 50 Hz. Single Phase.
3.4. Fan speed operation
4. INSTALLATION WIRING
±
The MD100 is suitable for running from a 13 Amp supply socket.
Both the MD160 and MD200 should be hard-wired from a 20 Amp supply.
Wiring diagrams for the MD100, MD160 andMD200 are shown in figures 7. to 9.
Page 11
Normal Running Current (A)
Power Consumption (kW)
Supply Current Required (A)
11
2.5
13
13
3.1
20
17
3.9
20
MD100
MD160 MD200
Model
QA/IOM/46 Issue 11 - MD Dehumidifier