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24-V THERMOSTAT
TERMINALS
3-AMP FUSE
LED OPERATION
& DIAGNOSTIC LIGHT
BLOWER SPEED
SELECTION
TERMINALS
115-VAC (L2)
NEUTRAL
CONNECTIONS
For Non-Direct Vent (1-Pipe) system, combustion-air must
terminate outside of furnace casing with 1 elbow. Orient elbow so
that its opening faces down for upflow or downflow applications.
Orient elbow so that its opening faces sideways (left or right) for
horizontal left or horizontal right applications (See Fig. 37.)
Maintain a 3-in minimum clearance between the opening of the
combustion-air inlet pipe and any object.
CAUTION
!
UNIT CORROSION HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Combustion air must not be taken from inside structure
because inside air is frequently contaminated by halogens,
which include fluorides, chlorides, bromides, and iodides.
These elements are found in aerosols, detergents, bleaches,
cleaning solvents, salts, air fresheners, adhesives, paint, and
other household products. Locate combustion-air inlet as far as
possible
from
swimming
pump house.
NOTE: All pipe joints must be cemented, with the exception of
combustion- -air pipe to inlet housing connection, as it may be
necessary to remove pipe for servicing.
BLOWER OFF-DELAY
BLOWER OFF-DELAY
TEST / TWIN
HUH
SEC-2
SEC-1
COM
24VAC
COM
HEAT
COOL
FAN
SPARE 2 SPARE 1
EAC-2
115-VAC (LI)
NUETRAL
CONNECTIONS
Fig. 36 - - Furnace Control
pool
and
swimming
pool
EAC-1
L1
BL-1
PR-1
PL2
EAC-1 TERMINAL
(115-VAC 1.0 AMP. MAX0
PL1-HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTION
Assembly of Combustion Air Pipe (Non-Direct Vent/1-Pipe
System ONLY)
1. Permanently
install
(factory-supplied in loose parts bag) in combustion-air
elbow using RTV or by cementing, as shown in Fig. 38.
For proper combustion disk usage, please refer to Table
11.
2. Determine the length of straight portion of combustion-air
inlet pipe from Fig. 38.
3. Cut field-supplied 2-in. (51 mm) diameter PVC pipe to
length as determined per Fig. 38.
4. Permanently attach elbow/perforated disk assembly to
straight portion of pipe using RTV or by cementing as
shown in Fig. 38.
Assembly of Combustion Air Pipe (Direct Vent-2-Pipe
System ONLY)
1. Using Table 11, individually determine the diameter of the
combustion- -air and vent pipe allowed. If different sizes,
pick the larger of the two diameters and use this diameter
for both combustion- -air and vent pipes.
2. When installing vent systems of short pipe length, use the
smallest allowable pipe diameter. use of pipe size greater
than required may result in incomplete combustion, flame
disturbance, and flame sense lockout.
- - 33 - -
TWINNING AND/OR
COMPONENT TEST
TERMINAL
HUMIDIFIER TERMINAL
(24-VAC 0.5 AMP. MAX)
TRANSFORMER
24-VAC CONNECTIONS
PL1-LOW VOLTAGE
DRAIN HARNESS
CONNECTOR
perforated
disk
A08345
assembly
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