21
FUEL TANKS
Local codes and regulations must be followed regarding tank and burner installation. Check existing tanks for water and
sludge accumulation; clean if necessary. Also clean or replace existing piping.
ELECTRICAL WIRING OF BURNER
The oil burner is shipped completely wired. It is only necessary to supply the line voltage circuit, thermostat and limit
circuit. All wiring must comply with the National Electric Code or the code legally authorized in the locality where the
installation is being made. The burner, when installed must be electrically grounded in accordance with local codes or, in
absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA No. 70. Refer to wiring
diagrams
Figure 3
,
Figure 4
and
Figure 5
on pages 16 & 17 for reference on wiring, and thermostat connection. If an
external electrical source is utilized, the oil burner, when installed, must be electrically grounded in accordance with local
codes or, in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA No. 70.
For line voltage wiring to the burner use solid copper conductor wire not lighter than #14 AWG.
If a fused disconnect is
used, it should be fused for a minimum of 20 amps.
If the oil burner comes equipped with an oil primary control, the burner will be shipped with a jumper wire on the
thermostat (T-T) terminals. The jumper needs to be removed for remote thermostat control and the thermostat needs to
be connected per wiring diagrams. A T-T terminal is an open/close switch for the oil primary control and no voltage should
be connected to it. For boilers it may be necessary to leave the T-T terminal jumped as the aquastat may be providing the
voltage to the burner and controlling when voltage is sent to the burner. The burner is controlled by the appliance. Once
wiring is complete between burner and appliance, verify that
the appliance is controlling the burner’s on/off operation.
When connecting the burner to the line voltage electrical supply, utilize the knockout provided on the burner’s junction
box.
CHIMNEY INSTALLATION
Follow the recommendations of the appliance manufacturer. A chimney shall be capable of producing a draft as
recommended by the appliance manufacturer. It must be properly designed, of adequate size, be above the surrounding
objects, tile-lined, with no obstructions, and be in a good state of repair. The smoke pipe should sit flush with the inside of
the tile and be cemented in place. All cleanout doors should be sealed. A draft inducer may be used to overcome
inadequate draft conditions. If a draft inducer is used, provisions must be made to ensure the burner does not operate if
the draft inducer fails.
DRAFT REGULATORS
A draft regulator shall be provided unless otherwise specified by the appliance manufacturer. The draft regulator shall be
installed in accordance with local codes and regulations or in the absence of local codes, with ANSI NFPA31. Refer to
appliance manufacturer’s instructions for recommended over fire and stack draft.
Label all wires prior to disconnection when servicing burners. Wiring errors can cause
improper and dangerous operation. Verify proper operation after servicing
If any of the original burner wiring must be replaced, it must be replaced with
#18 AWG 105
°
C wire or equivalent
