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Oilline entry holes arelocated i nthesidepanels. Two holes
areprovided oneach side, s othatatwo-pipe system canbe
used ifdesired.
A 10-micron (orfiner)oilfiltershould beusedwithall oil
burners, installed asclosely a spossible totheburner.
2.4.7
Electrical system
Table 2 : Filter rack flange dimensions
for return air duct
Model
Air Filter Size
Flange Opening
16" x 24"
15" x 23"
CBM SIZE 105
40.64 x 60.96 cm
38.10 X 58.42 cm
20" x 30"
17" x 29"
CBM SIZE 120
45.72 X 76.20 cm
43.18 X 73.66 cm
IThe
unit
cabinet
must
have
an
uninterrupted
or I
I
unbroken
electrical ground to minimize personal
injury I
if an electrical fault should occur. A green ground screw I
is provided in the control box for this connection.
I
The appliance
must be installed
in accordance
with the
current ANSI/NFPA
70 National Electrical Code, CSA C22.1
Canadian Electrical Code Part 1 and/or local codes.
The control system depends on the correct polarity of the
power supply. Connect "HOT" wire (H) and "NEUTRAL" wire
(N) as shown in Figures 12 and 13.
A separate
line voltage supply should be used with fused
disconnect switch or circuit breaker between the main power
panel and the unit.
Use only copper wire for 115V supply service to the unit.
Metallic conduit (where required/used)
may terminate at the
side panel of the unit. It is not necessary
to extend the
conduit inside the unit from the side panel to the control box.
When replacing any original furnace wiring, use only 105°C,
16 AWG copper wire.
Instructions
for wiring the thermostat
are provided with the
thermostat (field supplied). Wire the connections
to the 24-
volt terminal board on the primary relay as shown in Figures
12 and 13.
When
installing
optional
accessories
to this
appliance,
follow the manufacturer's
installation
instructions
included
with the accessory.
Other than wiring for the thermostat,
wire with a minimum of type "T" insulation (17°C rise (63°F))
must be used for accessories.
2.4.8
Air filter
An external filter rack is provided as standard equipment
with this furnace. The filter rack can be installed on the right
or left side panel, or on the bottom
of the furnace
to
accommodate
the return air ductwork. A sufficient clearance
should be provided for air filter access. Please refer to Table
2 for filter rack flange dimensions for return air duct.
_1_
DANGER
2.4.9
Air Conditioner (or Heat Pump)
An air conditioning coil may be installed on the supply air
side ONLY.
POISONOUS
CARBON MONOXIDE GAS HAZARD
Install the evaporator
coil on the supply side
of the
furnace ducting ONLY.
An evaporator
coil installed on the return air side of the
ducting can cause condensation
to form inside the heat
exchanger,
resulting in heat exchanger
failure.
This in
turn can result in death, bodily injury.
No minimum
clearance is required between
the bottom of
the coil drain pan and the top of the heat exchanger.
If a
heat pump is installed, a "dual-energy"
thermostat,
or other
control
is required,
in order to prevent the simultaneous
operation of the furnace and the heat pump. It also prevents
a direct transition from heating by way of the heat pump to
heating with oil. Refer to the thermostat instructions
or those
of another control used for the proper wiring.
If a coil blower
compartment
is used,
install
air tight,
motorized and automatic air dampers. Cold air coming from
the
coil
and
passing
across
the
furnace
can
cause
condensation
and shorten the life of the heat exchanger.
2.4.10
Horizontal or downflow installation
1.
On horizontal
installations,
determine
which "side" will
become the "top", when the unit is laid down. Remove
the flue pipe clearance knockout from the top front of
that side panel. Install the flue elbow so that it exits the
cabinet of the furnace through that opening;
2.
On counterflow
Installations,
the flue pipe must exit the
cabinet through
one of the side panel openings
(as
above),
then
extended
up the side of the furnace.
Ensure that adequate
clearances
to combustibles
are
observed.
It may be necessary
to install a sheet-metal
shield on an adjacent wall to prevent any possibility of a
fire hazard;
3.
Remove the burner.
If it's a Beckett burner models,
loose the mounting nuts and turn the oil burner slightly
counter clockwise to unlock the burner flange. For the
RieIIo
burner
models,
unscrew
the
mounting
nuts.
Avoid putting undue strain on burner wiring. It may be
necessary
to disconnect
the burner wiring
in some
cases;
4.
To reinstall the Beckett burner, insert the burner in the
burner flange bolts and turn the burner clockwise to lock
it; then tighten the nuts.
I IMPORTANT:
The burner must always be installed
in the I
upright position with the ignition control on top.
I
10
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