Duct System
Air can be delivered over a distance to individual rooms or areas by
means of a duct system. The duct system, which is tailored to fit the
building, should be designed, fabricated and installed by a competent
HVAC sheet metal contractor, preferably while building is under
construction.
INSTALLATION
CAUTION:
Disconnect all electrical power to the cooler
before attempting to install, open, or service your cooler.
More than one disconnect may be required to de-energize
the equipment for servicing. If the cooler is
thermostatically controlled, the thermostat must not be
used as the power supply disconnect, as it may reset and
start the unit unexpectedly.
Even while routinely inspecting or servicing the inside, the cooler can
be accidentally started. Keep all personnel away from the cooler and
electrical supply when you are working on it. Before servicing or
cleaning unit, switch power off at the service disconnects and lock the
disconnecting means to prevent power from being switched on
accidentally. When the service disconnects cannot be locked,
securely fasten a prominent warning device, such as a tag, to the
service disconnect or panel. Do not turn power to unit on until
installation or service work is complete.
Electrical Installation
CAUTION:
All electrical installations must comply with local
and national building & safety codes; all work must be performed
by qualified personnel only.
Locate the junction box installed in the cabinet. Note
That there are two receptacles; one for the pump and
one for the motor. The power supply for the cooler
must be connected to these receptacles to provide
power to the pump and motor. Wire the pump and motor receptacles
per the wiring diagram as shown. Make sure that both the pump and
blower motor are matched to the power supply voltage. DO NOT MIX
VOLTAGES, for example; a 120 Volt pump and a 240 Volt motor.
NOTE: Improper voltage connections will void all warranties.
Electrical Ground
For maximum safety, make sure cooler cabinet, blower motor and
pump are properly grounded to a suitable ground connection as
required by all local and national codes.
WIRING DIAGRAM
This wire is not used. Isolate bare wire with a wire nut or double it over
A
and securely cover the bare wire with electrical tape.
The red wire is not used on single speed motors. Isolate bare
B
wire with a wire nut or double it over and securely cover the bare
wire with electrical tape.
Motor Installation
Mount blower motor to the motor cradle using the motor straps as
shown. Position motor so that the vent holes in the motor case are
pointing downward and the motor nameplate label is upwards. Insert
motor cord plug into the receptacle in the junction box.
Install belt over motor and blower pulleys. Align belt vertically by
loosening the set screw holding the motor pulley to the shaft and
moving the pulley in or out on the shaft until aligned. Tighten set
screw.
Adjust Motor Pulley
When the cooler is connected to extended ductwork, the cooler
capacity and motor amperage may decrease due to the increased
duct resistance. The adjustable motor pulley is to be used ONLY to
return the cooler motor to it's maximum allowable amperage and
should not be readjusted except for this purpose.
CAUTION:
Do not exceed the maximum motor
amperage (FLA) stamped on the motor specification plate
or motor can be overloaded, damaging motor.
Check amperage with all doors, windows and exhaust
vents open and/or all relief systems operating.
Improper pulley adjustment will overload and severely
damage motor windings (this damage will NOT be covered
under warranty). Only qualified persons with proper
electrical equipment and knowledge should adjust
variable pitch motor pulleys.
CAUTION:
Never operate unit with access panels
removed. This will result in an overloaded condition and
may damage the blower motor.
NOTE:
For 230 Volt installations, it will be necessary to replace the
115 Volt pump receptacle with a 230 Volt pump receptacle
obtained from your dealer. Please see the Replacement Parts
List for the correct part number.
Trophy Ducted Evaporative Cooler Use and Care Manual 3