HI-E DRY 195 Kurulum, Çalıştırma ve Servis Talimatları - Sayfa 4
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Sayfayı Yazdır3 Operation
3.1 Humidity Control Adjustment
The dehumidifier will run continuously until the relative
humidity (RH) is reduced to the humidity control dial
setting. Setting the humidity control to lower RH levels
will NOT increase the unit's dehumidification rate, it
will simply run longer to reduce the area's RH to the
setting. The HI-E Dry 95 unit (and refrigerant based
dehumidifiers in general) will reduce a warm space's RH
to a lower level than that of a cool space. It is therefore
pointless to set the humidity control to excessively low
levels in cool rooms. Doing so will result in long periods
of ineffective dehumidifier run time.
A quality humidity meter is recommended to accurately
monitor humidity levels. For a quote on a quality humidity
meter, call the factory.
3.2 Fan Switch
Turning the fan switch ON will cause the unit's
internal blower to run continuously, whether the unit is
dehumidifying or not. This function is desirable if the unit
is used for air circulation or fresh air ventilation.
3.3 Defrost Control Adjustment
When the HI-E Dry 95 is used in a cool area, frost will
form on the cooling coil as it dehumidifies. When enough
frost forms, the defrost thermostat will initiate the
timed defrost cycle. The cycle periodically turns off the
compressor while allowing the blower to run. The air that
the blower draws through the cooling coil melts the frost.
The defrost cycle is automatic and designed for optimum
performance above 50°F. If the unit is used in an area
that is below 50°F for more than 2 hours, adjustment
of the defrost timer is recommended to improve
performance.
To adjust the defrost timer:
. Unplug the unit.
2. Remove the front cover (6 screws).
3. The timer is fastened to the base panel. Every fourth
peg around the dial is pushed out from the dial
center except one section with 5 pegs out in a row.
See figure . Each fourth "out" peg represents 5
minutes of compressor "off" time during every hour
that the unit is in the defrost cycle.
4. To improve performance below 50°F, the compressor
"off" time must be increased to 30 minutes per hour
to allow the frost to completely melt. To do this, push
the pegs out from the dial center so that the pegs
alternate with 2 toward the center, then 2 out from
the center, all the way around the dial except for the
section now with 6 pegs out in a row (see Fig. ).
5. Replace the front cover.
Toll-Free -800-
Figure 2: Defrost Control Timer
Change the timer pegs back to the original pattern for
use above 50°F.
3.4 Low Pressure Control
If the low side refrigerant pressure drops to 5 PSIG, the
low pressure control opens and shuts off the compressor
and blower. It is an automatically reset control that will
close when the pressure rises to 35 PSIG. Its primary
function is to prevent damage to the compressor if a leak
develops in the refrigeration system. It may also open if
the unit is A) used in a cool area (below 50°F) and the
defrost timer is not adjusted (see Sec. 3.3) or B) stored
where it is below 40°F and then started. Under these
conditions, the unit will restart within several minutes.
Until the unit warms up, it may cycle several times.
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