CAUTION
A positive pressure venting system (Sealed Combustion
System or Direct Vent) MUST NOT use the BVSO. Follow
the instructions supplied with the venting system.
1.9) INSTALLING
ACCESSORIES
WARNING
Electrical shock hazard.
Turn OFF electric power at fuse box or service
panel before making any electrical connections and
ensure a proper ground connection is made before
connecting line voltage.
Failure to do so could result in bodily injury or
death, property damage.
1.9.1) Electronic air cleaner
Wire terminals are provided to direct 115 volts @ 0.5 Amp maximum
to an Electronic Air Cleaner (EAC). Power will be available to the EAC
at all times, so it must incorporate a flow proving switch if it is to be
wired into the furnace control box. Most modern EACs have the
required integral airflow proving switch. Wire the Electronic Air Cleaner
between terminals #5 and #2. Refer to wiring diagram, Figure 6.
1.9.2) Humidifier
The red wire from burner can be used to direct 115 volts @ 1.0 Amp
maximum to the transformer powering the humidifier. The humidifier
will be energized anytime the burner is operating in the “Heating
Mode”. Refer to wiring diagram, Figure 6.
1.9.3) Air
conditioning
An air conditioning coil may be installed on the supply air side only.
Also, notwithstanding the evaporator coil manufacturer’s instructions,
a minimum of 6 inches clearance must be allowed between the bottom
of the coil drain pan and the top of the heat exchanger. Wire the
thermostat and condensing unit contactor as indicated in the wiring
diagram (Figure 6)
.
1.9.4) Ductwork and Filter
Installation
Design and install the air distribution system to comply with Air
Conditioning Contractors of America manuals or other approved
methods that conform to local and/or national codes and good trade
practices.
CAUTION
When ducting supplies air to a space other than where
the furnace is located, the return-air ducts must be
sealed and also be directed to the space other than
where the furnace is located. Incorrect ductwork
termination and sealing will create a hazardous
condition which can lead to bodily harm.
Install air conditioning cooling coil (evaporator) on downstream side
from the supply air plenum of the furnace. If a separate evaporator
and blower unit is used, install appropriate sealing dampers for air flow
control. Cold air from the evaporator coil going through the furnace
could cause condensation and shorten furnace life.
CAUTION
Dampers (purchased locally) MUST be automatic.
WARNING
Poisonous carbon monoxide gas hazard.
Do NOT draw return air from inside a closet or
utility room. Return air duct MUST be sealed to
furnace casing.
Failure to properly seal duct can result in death,
personal injury and/or property damage.
WARNING
Poisonous carbon monoxide gas hazard.
Install evaporator coil on the supply side of the
furnace ducting.
Evaporator coil installed in return side ducting can
cause condensation to form inside heat exchanger
resulting in heat exchanger failure. This could
result in death, personal injury and/or property
damage.
15
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Summary of Contents for OCF105A12C
Page 22: ...DNS 0589 Rev C FIGURE 5 Models ODH53F100LB 3MC OCF105A12C 23 445 01 4024 05...
Page 23: ...24 FIGURE 6 Wiring diagram ODH53F100LB 3MC OCF105A12C 445 01 4024 05...
Page 24: ...COMPONENTS AND REPLACEMENT PARTS 25 445 01 4024 05...
Page 25: ...PARTS LIST Model ODH53F100LB 3MC OCF105A12C B50030A 26 445 01 4024 05...
