Newmac BC 160, Инструкция по установке, эксплуатации и обслуживанию

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NEWMAC MFG. INC. COMBINATION OIL, WOOD & COAL BOILER
OPERATING SEQUENCE – (See Diagram 7)
WOOD (COAL)
When starting a wood fire in the Newmac Boiler, turn toggle switch 5 to the OFF or wood only position.
The dual aquastat 2, set at 180ºF, will cause the draft fan to operate. When the boiler water temperature
reaches 180ºF it will shut the draft fan off.
If a zone thermostat calls for heat, the zone valve will open and when it is open the auxiliary contacts will
make energizing relay 7. In the case of only one zone the thermostat will energize relay 7 direct. This
action starts the circulating pump, which circulates water to the house heating rads.
If the boiler
temperature drops below 160ºF, the circulator will stop until the heating media catches up.
After the wood fire has brought the boiler up to temperature or has passed the 170ºF mark, switch 5 may
be placed in the automatic or on position.
Automatic position allows the oil burner to come on if the wood fire, because of not being adequately
charge, permits the water temperature to drop below 170ºF.
While the oil burner is operating, relay
number 6 is energized, interrupting the draft fan maintaining oil burner efficiency.
When the boiler temperature reaches 170ºF the oil burner stops, allowing the draft fan to start again to
stimulate the wood fire.
If oil only is to be used for a period of time toggle switch 4 should be moved to off or oil only position.
If the boiler temperature reaches the temperature setting of aquastat 3, the dump valve(s) (N.O. valves)
open to each zone and the circulator starts, helping to distribute the excess heat throughout the house.
The latter should only happen if someone inadvertently overfires the unit.
OIL
With the boiler water temperature below 170ºF open the line switch, turn toggle switch #4 to “OIL ONLY,”
remove the air bleed plug from the pump (refer to Diagram attached to pump):
A. Open oil supply valve
B. Place a container in position to catch foam
C. Close the line switch and after pure oil is emitted, open the line switch and replace bleed plug
D. Close the line switch and the oil burner should run normally after a few seconds
If the unit fails to start check:
A. Power supply
B. Thermostat and circuit
C. Correct wiring
D. Motor thermal switch
If the unit starts but goes out on safety check:
A. Oil supply
B. Ignition (electrodes and transformer)
C. Cell
If unit goes out on safety, do not push the reset button for at least ten minutes. Do not push the reset
button more than once before correcting the cause.
Adjust oil burner air control so that a #1 or less smoke is arrived at by means of a smoke test. The
damper in the wood firedoor must be closed during this procedure. If a smoke tester is not available,
slowly close the air adjustment until the fire becomes smokey. Slowly open the air adjustment until there
is a small amount of smoke on the flame tips.
By means of the barometric draft regulator – adjust to a -.03 draft at the chimney. This must be done by
means of a draft meter. The maximum draft is not to be more than -.05 as damage can result to the
boiler when used as a gravity unit. The test must be made between the flue collar on the boiler and the