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2.2.5
Electrical
The appliance must be installed in accordance with current
ANSI/NFPA 70 National Electrical Code / CSA C22.1
Canadian Electrical Code Part 1 and/or local codes.
Check your furnace's power and nominal amperage in order
to select the correct breaker.
240/120-VAC, 60-Hz power supply connected with a
three-wire cable plus ground to the terminal block provided
in the upper left-hand corner of the electrical panel. The
block is designed for wires ranging in size from #6 to #3/0;
the ground wire must be connected to the appropriate screw
on the block. Use only copper wire listed for temperatures
not less than 90° C (194° F). To determine the size o f wire,
consult Code C22.1. Table 1 provides electrical information
for your furnace.
Table 1 : Electrical characteristics
Model
Electrical
power
(kW)
AME-15-79
15
AME-20-90
20
AME-25-100
25
A separate line voltage supply should be used with fused
disconnect switch or circuit breaker between the main power
panel and the unit.
WARNING
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal injury
if an electrical fault should occur.
screw is provided in the control box for this connection.
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 enclosed in the
thermostat box (field supplied).
connections as shown in Figure 6.
When installing optional accessories on 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 (35° C, 63° F r ise) must
be used for accessories.
2.2.6
Air filter
WARNING
Do not use this furnace as a construction heater. Use of
this furnace as a construction heater exposes it to
abnormal conditions, contaminated combustion air and
the lack of air filters. Failure to follow this warning can
lead to premature furnace failure and/or vent failure
which could result in a fire hazard and/or bodily harm.
The appliance requires a
Number of
Amperage
elements
(A)
3
70.5
4
91.3
5
113.2
A green ground
Make the thermostat
An internal filter rack, located in the blower compartment, is
provided as standard equipment with this furnace. A
sufficient clearance should be provided for air filter access.
Refer to Table 2 for filter rack flange dimensions for the
return air duct.
2.2.7
Blocked vent shut-off (BVSO) for chimney
venting
It is imperative that this device be installed by a
qualified agency.
This device is designed to detect the insufficient evacuation
of combustion gases in the event of a vent blockage. In such
a case the thermal switch will shut down the oil burner. The
device will then need to be re-armed MANUALLY.
Refer to the wiring diagrams and the detailed instructions
supplied with the BVSO for the installation and wiring
procedures. The length of wires supplied with the unit is
such that the safety device must be installed between the
flue outlet of the appliance and the draft regulator, as
indicated in the instructions.
It is further imperative that the BVSO be maintained
annually. For more details refer to the instructions supplied
with the device itself, as well as Section 4 of this Manual.
A positive pressure venting system (Sealed Combustion
System or Direct Vent) MUST NOT use the BVSO. Follow
the instructions supplied with the venting system.
3.0
OPERATION
3.1
GENERAL
Important notice concerning the initial start-up
On the initial start-up of the unit, or after a power failure, the
first heating cycle is always in the oil mode, even if the 3
position selector or the Hydro signal indicates otherwise. If
there is a call for heat on power up, the heating mode will
always use oil for the first heating cycle. Once the thermostat
is satisfied and the first heating cycle is completed, the
furnace micro processor will evaluate the heating factors
(position of the selector and Hydro signal) and will decide
which heating mode should be operational. If the thermostat
is not calling for heat on power up, this first cycle particularity
will be inoperative and the furnace will function normally later
during the first heating cycle.
3.1.1
Operation in the OIL mode
When the three-position selector is on the OIL setting, the
furnace operates like a conventional oil-fired appliance.
When the thermostat is set high enough, the burner comes
on, followed by the fan once the proper temperature is
reached. Once the set room temperature is reached, the
burner shuts down; the fan continues to work until residual
heat is evacuated from the system. The furnace features a
6
WARNING
CAUTION
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