Topaz TZ-12B, Owner'S Manual

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Portable Air Conditioners
3
INSPECTION
1. Inspect unit on delivery.
2. Compare unit received with description of product
ordered.
3. Report any damage to the delivery carrier.
4. Request a written inspection report from the Claims
Inspector to substantiate claim.
5. File claims with the delivery carrier.
GENERAL DESCRIPTION
Topaz Portable Air Conditioners are designed to spot
cool industrial, commercial, institutional and construction
sites. Six models provide from 17,300 to 75,900 BTU/hr.
of cooling and from 1740 to 7000 watts of electric heat.
Options include discharge nozzles to direct conditioned
air precisely where needed, and flexible duct to transfer
condenser hot air either outside or to an adjacent area.
Topaz Portable Air Conditioners are completely self-con-
tained and housed within an insulated cabinet. The units’
exterior is constructed of galvanized steel and protected
with a tough powder-coated, polyester finish. All models
are equipped with standard heavy-duty casters for porta-
bility.
STANDARD FEATURES
Serviceability
Normal maintenance for the Topaz Portable Air Condi-
tioners requires a minimum amount of effort. The two air
filters that cover the coils can easily be inspected and re-
placed by removing the grilles holding them. The TZ-18B
through the TZ-36B have an internal condensate tank
that must be emptied when full. The tank is in a rollout
drawer mounted on ball bearing drawer slides. The large
TZ-60B units have an integral condensate pump, with a
condensate tube that must be run to a drain or container.
All of the other components, which are normally
accessed for troubleshooting or replacement, can be
accessed by removing the side panels or top cover. The
electrical control panels can readily be accessed from the
exterior of the unit through access doors. On the TZ-
18B through TZ-36B the high head pressure reset switch
can be accessed by opening the condensate tank drawer
and pressing the button located on the back wall of the
enclosure. On the TZ-60B units the reset button is located
in the cord pocket enclosure, which is accessible from
outside the unit.
High-Pressure Safety Switch
All models feature a manual reset, high-pressure switch.
If the refrigeration circuit exceeds the controls pressure
setting, power to the compressor and other critical com-
ponents is cutoff to prevent damage to the unit.
Note: Determine the reason for the the trip and correct
the problem before resetting the switch (See the
troubleshooting section for suggestions. Wait four
minutes before attempting to reset.)
Digital Temperature Control System
The digital temperature control system allows the user
to select Cooling or Fan Only operating modes. It also
allows the unit to be started or stopped after a predeter-
mined period. The control also has internal functions
that prevent the cooling coil from freezing, prevent the
compressor from cycling excessively and provide a
heating element cool down function when in the heating
mode.
See the section covering the operation of the unit for
additional information on the Digital Temperature Control.
Filters
All units are equipped with removable, disposable,
pleated media filters. Located behind the return air and
condenser intake air grilles, they can be removed for
inspection or replacement by removing the grille.
Condensate Tank
The TZ-18B through TZ-36B are furnished with a five
gallon, polyethylene condensate tank located in the
drawer on the lower front of the unit. The tank collects
the moisture that condenses on the cooling coil when the
unit is in operation. When full, a magnetic float in the
tank closes a magnetic proximity switch located above
the tank inside the unit, turning the unit off and causing
“tF” to be displayed on the front panel of the unit. The
condensate tank must be emptied and reinstalled to allow
further operation.
Note: The unit will not operate unless the tank is
drained periodically. Optional condensate pumps
are available that allow continuous operation,
but require a tube to be run from the pump to a
suitable drain.