21
C
OUNTERFLOW
M
ODEL
I
NSTALLED
H
ORIZONTALLY
WITH
L
EFT
S
IDE
D
OWN
Minimum 5 3/8" clearance is required for the drain trap be-
neath the furnace.
Hose #4
Hose #5 x2
Hose #4
Figure 27
1. Remove hose clamps and hoses from trap.
2. Remove trap.
3. Remove plugs from left side of cabinet and install in
blower deck.
4. (Draining the Collector Box) Locate hose #4 and place
the radius end on the collector box drain port, secure
with a silver clamp.
5. Locate hose #2, insert from outside the cabinet in the
drain hole closest to the front of the cabinet, insert a
coupling and secure with a red clamp.
6. Mate coupling to hose #4 and secure with a red clamp.
7. (Draining the Vent Elbow) Remove plug from vent – drain
elbow side port.
8. Locate hose #4 and place radius end on the side port of
vent – drain elbow and secure with a red clamp.
9.
Install cap on vent drain elbow barb fitting and secure
with red clamp.
10. Insert PVC pipe into hose #4 and secure with a red
clamp.
11. Locate hose #5, insert it from outside the cabinet in
the drain hole farthest from the front of the cabinet.
12. Insert 100º elbow in hose #5 and secure with a red
clamp.
13. Locate another hose #5 cut a 5.25" straight section
and discard the radius end.
14. Connect the 5.25’ straight section to the 100º elbow
and the PVC pipe and secure with red clamps.
15. Mate trap inlets and hoses and secure with silver
clamps, drain trap outlet must point to the original
bottom of the furnace.
16. Secure trap to furnace using two screws removed in
step 2.
17. Refer to Field Supplied Drain section for instructions on
field supplied / installed drain on outlet of furnace trap.
E
LECTRICAL
C
ONNECTIONS
HIGH VOLTAGE !
T
O
AVOID
THE
RISK
OF
ELECTRICAL
SHOCK
,
WIRING
TO
THE
UNIT
MUST
BE
POLARIZED
AND
GROUNDED
.
WARNING
HIGH VOLTAGE !
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
SERVICING
OR
CHANGING
ANY
ELECTRICAL
WIRING
.
WARNING
L
ABEL
ALL
WIRES
PRIOR
TO
DISCONNECTION
WHEN
SERVICING
CONTROLS
. W
IRING
ERRORS
CAN
CAUSE
IMPROPER
AND
DANGEROUS
OPERATION
. V
ERIFY
PROPER
OPERATION
AFTER
SERVICING
.
CAUTION
W
IRING
H
ARNESS
The wiring harness is an integral part of this furnace. Wires
are color coded for identification purposes. Refer to the wiring
diagram for wire routings. If any of the original wire as sup-
plied 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 a copper conductor.
115 V
OLT
L
INE
C
ONNECTIONS
Before proceeding with electrical connections, ensure that the
supply voltage, frequency, and phase correspond to that speci-
fied on the unit rating plate. Power supply to the furnace must
be NEC 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 Na-
tional Electric Code, ANSI NFPA 70 and/or The Canadian Electric
Code CSA C22.1.
Use a separate fused branch electrical circuit containing prop-
erly 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.
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit’s blower door. For direct vent ap-
plications, the cabinet opening to the junction box must be
sealed air tight using either an UL approved bushing such as
Heyco Liquid Tight or by applying non-reactive UL approved
sealant to bushing.
Line polarity must be observed when making field connections.
Line voltage connections can be made through either the right
or left side panel. The furnace is shipped configured for a right
