Specifications

Page 11
8-Condenser Fans B4 and B5 (all units)
The tables on page 2 in this manual show the specifications of
condenser fans used in GCS24 10 and 12.5 ton units. Con
denser fans in all GCS24 units use single-phase motors. Both
units are equipped with two condenser fans.
D-Blower Compartment/ Power MakeUp
1-Indoor Blower Motor B3 (all units)
GCS24 units use threephase singlespeed blower motors.
CFM adjustments are made by adjusting the motor pulley
(sheave). Motors are equipped with sealed ball bearings. All
motors operate at 1725 RPM and are internally overload pro
tected. The Y and G voltage units use the same motor while
the J voltage unit uses its own motor. Units may be equipped
with motors manufactured by various manufacturers. Electri
cal FLA and LRA specifications vary by manufacturer. See
unit rating plate for information specific to your unit.
2-Low Voltage Terminal Strip TB1
All units are equipped with a low voltage terminal strip TB1 lo
cated in the power entry makeup compartment. See figure 9.
All low voltage (thermostat) electrical connections can be
made to this terminal strip. Knock-outs provided in the base
pan of the unit cabinet allow for passage of wires into conduit
and roof mounting frame. Special instructions are provided
where needed for low voltage connections that cannot be
made to the terminal strip. A detailed drawing of TB1 is also
shown in figure 8.
TB1 uses spring crimp retainers for securing wires. A small
slot screwdriver must be used to depress the spring in order to
insert or remove a wire (see figure 8 ). Strip wire no more than
1/4".
FIGURE 8
LOW VOLTAGE
TERMINAL STRIP
TB1
TO INSERT OR RE
LEASE WIRE, DE
PRESS CENTER WITH
PEN OR SMALL SLOT
SCREWDRIVER .
GCS24 LOW VOLTAGE TERMINAL STRIP
ALL UNITS
TYPICAL BLOWER COMPARTMENT AND POWER ENTRY
(GCS24-1353 SHOWN FOR CLARITY)
BLOWER
BLOWER MOTOR
ADJUSTABLE PULLEY
(CFM ADJUSTMENT)
MOTOR MOUNTING PLATE
BELT TENSION ADJUSTMENT
BLOWER PULLEY
EVAPORATORS
DRIVE BELT
GAS HEAT
SECTION
FIGURE 9
MULLION
BOTTOM POWER
ENTRY BOX -1353
BOTTOM POWER
ENTRY BOX -1603
24V TERMINAL STRIP (TB1)