PMP-098
Oil Furnaces
–
Furnace Manual
11/13
5
Figure 5: Thermostat wiring, heating and air
conditioning with 4-speed motor
Figure 6: Thermostat wiring heating and air conditioning
with ECM variable speed motor
Figure 7: Thermostat wiring, heating and air cond. heat
pump with ECM v. speed motor
Note: On units with 2 stage cooling or heat pump, terminal Y1
must be used. When Y1 on the electronic control
receives a 24 VAC signal, the air flow is reduced by
20%. Do not use terminal Y1 with a single stage cooling
or heat pump.
1.5.
INSTALLATION OF THE BURNER
Refer to the burner manufacturer’s instructions. Also, the burner
must be installed always in the same way independently of the
furnace orientation.
1. Position the mounting gasket between the mounting flange and
the burner mounting plate. Align the holes in the burner
mounting plate with the studs on the mounting flange and bolt
securely in place.
2.
Remove the burner drawer assembly or the air tube assembly;
3.
Install the nozzle, refer to Burner data Table 11;
4.
Check the electrode settings;
5.
Make the electrical connections;
6.
Complete oil line connections.
1.5.1.
Nozzles
The burner comes equipped with an appropriate nozzle. However, if
another size or a replacement nozzle is required, use the
manufacturer’s recommended spray angle and type as shown in
Table 11 and pump pressure as specified.
Always select nozzle sizes by working back from the desired flow
rate at operating pressure and not the nozzle marking.
1.5.2.
Air and Turbulator Settings
Before starting the burner for the first time, adjust the air and
turbulator settings to those listed in this manual, Table 11. Once the
burner becomes operational, final adjustments will be required.
Refer to section 2 of this manual
.
1.5.3.
Post purge delay adjustment
The post purge delay on the oil-fired burners is factory set to zero
second. This delay is applicable for all installations with chimney
venting. For heating units installed with side wall venting and a
burner equipped with this feature, the post purge delay must be set
to 15 seconds (For configuration use the Beckett Contractor’s Tool
"52082U"). No delay is required for Riello burners. Refer to the
burner control instruction manual and markings for proper
adjustment of the post purge delay.
1.6.
VENTING
Poisonous carbon monoxide gas, fire and
explosion hazard.
Read and follow all instructions in this section.
Failure to properly vent this furnace can result in
death, bodily injury and/or property damage.
To ensure the safe and proper functioning of an
oil furnace, it must always be connected to a flue
with sufficient draft or to an approved side-wall
venting system. In addition, it is strongly
recommended to perform a complete inspection
of all the existing venting systems.
Poisonous carbon monoxide gas hazard.
Never install a hand operated damper in the vent
pipe. However, any Underwriters Laboratories
listed, electrically operated automatic type vent
damper may be installed if desired. Be sure to
follow the instructions provided with vent
damper. Also, read and follow all instructions in
this section of the manual.
Failure to properly vent this furnace or other
appliances can result in death, bodily injury
and/or property damage.
