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Adjustments between “Air Heat Priority” and “Water Heat Priority” can be made
through the unit display. Refer to the Controls User Manual for adjustment
instructions.
5.4.5 Partial Pool or Spa Water Heating
If the dehumidifier has been equipped with Partial Pool or Spa Water Heating, a
portion of the heating energy will be routed to the water when there is a call for water
heating and dehumidification or cooling of the space. If the unit is in cooling mode the
air which is discharged from the dehumidifier is drier and about 10°F cooler than when
it entered. If the unit is in dehumidification mode, the air which is discharged from the
dehumidifier is drier and about the same temperature as when it entered.
5.4.6 Operation of Water Condensers and Optional Pump Starts
The LC and LV units have options for water condensers that heat pool water or reject
energy to a water loop. The command for pool water heating is described in the
sections above. A water cooled condenser can also be installed that takes the place
of a remote condenser as described in the above sequence. The temperature of the
water is not monitored by the controller when the unit is configured with a water cooled
condenser intended for use on a water loop.
Units containing either pool water heating option or water cooled condenser option can
be configured to create a dry contact closure when water should be flowing through
the condenser. If the controller has been configured this way, the contact to the
remote pump will close. After flow is established as sensed by the water flow switch,
the unit will then shift to the appropriate condenser. Should flow not be established,
the unit will shift to the next available condenser having priority. If no other
condensers are available the compressor will not energize (or de-energize if
previously operating) until flow is established or requirements change.
Refer to the Controls User Manual and electrical schematic for instructions on
programming pump start command(s) if required.
5.4.7 Blower Operation
Units have been factory wired for continuous blower operation. This helps prevent
air stagnation and stratification. Continuous blower operation is also required on units
with the duct-mounted sensor option. If the blower shuts off, the sensors cannot read
the actual room temperature and humidity. Refer to the system wiring diagram and
the controller documentation for the possible blower operation options.
5.4.8 Air Heat (Optional)
LC Only
– If so equipped, a standard dehumidifier can activate an internal auxiliary air
heater when the room temperature drops below the set point. The supply air blower
of the dehumidifier must run whenever there is a demand for air heating. You must
verify this when installing an auxiliary heater.
Desert Aire - LC/LV Manual
Summary of Contents for ExpertAire LC Series
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