Table of Contents
Advertisement
• -010 model is factory-wired for single-branch supply
circuit only.
• -012 models are factory-wired for single-branch supply
circuit (single-circuit kit factory installed). Dual-branch
circuit can be used by removing factory-installed single-
circuit kit (see Figure 17).
• -015, -017, -020 and -023 models are factory-wired for
dual-branch supply circuit. Single-branch circuit can be
used by installing optional single-circuit kit.
Connecting Supply Service Wires
Power entrance for all models may be through the right
side or through the bottom of the unit.
1. Remove right-hand control panel (when viewing in
downfl ow position).
2. Locate power supply knockouts in side of unit and in
bottom of unit. Remove appropriate plug(s) or knockout
opening applicable to selected wire size(s).
WARNING:
To avoid personal injury or property damage,
make certain that the motor leads cannot
come into contact with non-insulated metal
components of the unit.
3. Install listed cable connector(s) in opening(s). If metal-
sheathed conduit is used for incoming power line(s),
provide an approved metal clamp on conduit and
secure it in entrance knockout.
4. Insert supply service wire(s) through cable connector(s)
and connect wires to circuit breakers (Figures 17 &
18). NOTE: To install single-circuit kit, perform step
5. If single-circuit kit installation is not needed, go to
step 6.
Circuit Breaker
Bracket
Circuit Breaker
Wire Assemblies
(Factory Installed)
Figure 17. Optional Single Circuit Adaptor Kit
Circuit Breaker
Bracket
Circuit Breaker
Wire Assemblies
(Factory Installed)
Figure 18. Installation of Supply Service Wires
14
5. To install optional single-circuit kit:
6. Connect service ground wire(s) to grounding lug(s)
Grounding
To minimize personal injury, the furnace cabinet
must have an uninterrupted or unbroken
electrical ground. The controls used in this
furnace require an earth ground to operate
properly. Acceptable methods include electrical
wire or conduit approved for ground service.
Do not use gas piping as an electrical ground!
Thermostat / Low Voltage Connections
• The furnace is designed to be controlled by a 24 VAC
• The thermostat should be mounted about 5 feet above the
Selecting Blower Speed
Optional
Single Circuit
The E3EB model is equipped with a 4-speed PSC motor
Adaptor Kit
which can be upgraded to a multi-speed high effi ciency
X-13 motor using kit 904619. It is equipped with a multi-
speed blower, blower relay, and cabinet insulation kit for
air conditioner hookup. See Table 6 (page 19) for cooling
and heat pump availability with factory installed blower.
Supply Service Wire
Connection With Single
Circuit Adaptor Kit
If a relay box is installed, blower speeds for
heating and cooling are set inside the relay box.
The blower speed inside the furnace control
box must be set to low or medium-low. Never
change to a heating speed lower than that shown
in Table 3 (page 15). See instructions supplied
with relay box.
Supply Service Wire
See Table 3 for the lowest speed approved for the heating
Connection Without Single
Circuit Adaptor Kit
output of the unit. Since the blower leads connect to the
control box, blower speed selection is through use of the
a. Loosen lugs at supply side of circuit breakers.
b. Remove cover from single-circuit kit (if supplied).
c. Insert metal buss bars of kit into lugs of circuit
breaker.
d. Tighten lugs securely (45 in.-lbs. recommended).
provided. One ground is required for each supply
circuit used. See Fgiure 20 (page 17).
WARNING:
thermostat. The thermostat's wiring must comply with
the current provisions of the NEC (ANSI/NFPA 70) and
with applicable local codes having jurisdiction.
fl oor on an inside wall. DO NOT install the thermostat on
an outside wall or any other location where its operation
may be adversely affected by radiant heat from fi replaces,
sunlight, or lighting fi xtures, and convective heat from
warm air registers or electrical appliances. Refer to the
thermostat manufacturer's instruction sheet for detailed
mounting information.
IMPORTANT:
Hide quick links:
Advertisement
Table of Contents
