Instruction manual

23
4. Cut “X” inches from the long end of Hose B and
discard. Refer to table below for appropriate length to
cut.
24 1/2
090__50
115
__
50
11 1/4 inches
"X" Length to Cut From
Long End of Hose B
19 1/8 inches
20 1/2
070__40
090__40
14 3/4 inches
Cabinet Width
(inches)
Model
GUCA & GCCA
(kBTU Tons)
16 1/2
045__30
070__30
5. Secure short end of Hose B to induced draft blower
drain port using a green hose clamp. Route hose to
front left (down) side panel grommet holes.
6. For units with a 16 1/2” cabinet width, cut 5 1/2 inches
straight length from the long end of one Tube 2.
For units with a 20 1/2” and 24 1/2” cabinet width,
cut 5 1/2 inches straight length from the long end of
each Tube 2.
7. Units with a 16 1/2” cabinet width.
Insert approximately one inch of cut Tube 2 through
left side panel grommet hole and secure to Hose A with
a hose clamp. Insert uncut Tube 2 through remaining
grommet hole and secure to Hose B with a green hose
clamp. NOTE: Tube must reach bottom of trap.
Units with a 20 1/2” and 24 1/2” cabinet width.
Insert approximately one inch of each Tube 2 through
left side panel grommet hole. Secure tubes to Hose A
and Hose B with a green hose clamps. NOTE: Tube
must reach bottom of trap.
NOTE: Ensure hoses and tubes maintain a downward
slope for proper drainage and that they are not kinked or
binding.
For details concerning mounting of the drain trap, refer to
Section X, Condensate Drain Lines and Drain Trap -
Upright Drain Trap Mounting.
Horizontal Drain Trap Mounting (Left or Right Side
Panel)
1. Position the drain trap against side panel with drain
tubes inserted into trap. Note that the trap may be
orientated with the outlet facing either the furnace’s
top cover or base pan.
2. Secure drain trap to side panel at the dimples or
crosshairs located on either side of the grommet drain
holes.
3. Confirm that tubes reach bottom of drain trap and that
all hoses maintain a downward slope and are not
kinked or binding.
4. Attach PVC drain line to drain trap outlet with either a
90° elbow or coupling.
XI. Electrical Connections
WARNING
To avoid the risk of electrical shock, wiring
to the unit must be properly polarized and
grounded.
WARNING
To avoid electrical shock, injury or death,
disconnect electrical power before
servicing or changing any electrical wiring.
CAUTION
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
WIRING HARNESS
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be
required. Wires are color and number coded for identifica-
tion purposes. Refer to the wiring diagram for wire routings.
If any of the original wire as supplied with the furnace must
be replaced, it must be replaced with wiring material
having a temperature rating of at least 105° C. Any
replacement wiring must be copper conductor.
115 VOLT LINE CONNECTIONS
Before proceeding with electrical connections, ensure that
the supply voltage, frequency, and phase correspond to
that specified on the unit rating plate. Power supply to the
furnace must be N.E.C. Class 1, and must comply with all
applicable codes. The furnace must be electrically grounded
in accordance with local codes or, in their absence, with the
latest edition of The National Electric Code, ANSI NFPA 70
and/or The Canadian Electric Code CSA C22.1.
Use a separate fused branch electrical circuit containing
properly sized wire, and fuse or circuit breaker. The fuse
or circuit breaker must be sized in accordance with the
maximum overcurrent protection specified on the unit
rating plate. An electrical disconnect must be provided at
the furnace location.
NOTE: Line polarity must be observed when making field
connections.