Care And Maintenance; Extended Shutdown; Freezing Protection; Iii. Oil Burner - Slant/Fin INTREPID TRDV-30-0.85 Installation And Operation Instructions Manual

12

CARE AND MAINTENANCE

CAUTION: DO NOT ATTEMPT TO START THE BURNER
WHEN EXCESS OIL HAS ACCUMULATED, WHEN THE UNIT
IS FULL OF VAPOUR, OR WHEN THE COMBUSTION
CHAMBER IS VERY HOT.
CAUTION: DO NOT TAMPER WITH THE UNIT OR CONTROLS
– CALL YOUR SERVICE PERSONNEL.
I. EXTENDED SHUTDOWN, CLEANING OR REMOVAL OF
BOILER FROM SERVICE.
DANGER: Use CAUTION when handling chemicals and draining
hot water from a boiler. Scalding water and/or chemicals can
cause permanent injury to the skin, eyes and respiratory system.
A. Shut down burner by disconnecting all electrical power to the
burner by turning OFF the BURNER EMERGENCY SWITCH
of this boiler. After shutting down burner, while the boiler is
still hot 82.2 to 93.3°C (180 to 200°F), drain water from the
bottom of the boiler until it runs clear.
B. Provide corrosion protection conditioning to the boiler water
in the heating system. There are a number of commercial
heating system preparations available from your distributor.
Follow the preparation manufacturer's instructions.
1. For water boilers, maintain a sodium chromate solution
strength of 177mL/189L (6 oz. per 50 gallons) of water,
and refill to normal fill-pressure with system vented.
2. Raise water temperature to at least 82.2° (180°F). for one
hour to release dissolved gases.
3. Shut down burner by disconnecting the main switch.
C. To clean the fireside boiler surfaces, first shut down burner by
dis-connecting all electrical power to the burner by turning
OFF the OIL BURNER EMERGENCY SWITCH of this boiler in
order to perform the following work in (1) through (10) below.
1. Remove the flue pipe from the boiler flue collar and clean
thoroughly. Use hand protection if the flue pipe is still hot.
2. Inspect the entire vent connector back to the chimney and
clean if necessary.
3. Inspect the chimney for soot, debris and other unsafe
conditions of the chimney and take the necessary action.
4. Remove the flue collector by first removing the top jacket
panel. The flue collector is held in place by 15 3/8 nuts.
Carefully remove the flue collector DO NOT disturb the
high temperature silicone seal under the flue collector.
5. When necessary to clean the combustion chamber you
must first CLOSE the suction valve (and return valve if two
pipe). Then disconnect the oil lines from the burner. The
flexible electric conduit connected from the junction box
on the boiler to the burner via a plastic connector must be
disconnected from the burner by grasping the plastic half
of the connector closest to the flexible conduit and gently
pulling it in the direction of the conduit until it is
disconnected. Remove the single 3/8-16 hex head screw
on the LEFT side of the swinging door. You will need a
9/16" drive socket. Open the door to completely expose
the combustion chamber for thorough cleaning and for
inspection of target wall, blanket (provided in certain
models; see rating plate), main cast iron burner door
insulation and burner door fiberglass sealing rope. If
combustion chamber parts above are badly deteriorated
then replace with original factory parts available at your
distributor.
6. Use the flue brush to clean the pinned flueways between
the sections.† A wire brush may be used to remove any
carbon accumulation that may have developed in the
combustion chamber. Vacuum the loose soot and debris
from the boiler.
7. Inspect the burner combustion head. Clean if necessary
and make sure all the adjustments are correct. (See
burner data pages for the burner installed.) Replace oil
nozzle with new one and readjust electrodes. To insure
proper burner operation ONLY THE NOZZLES SPECIFIED
IN THIS MANUAL OR ON THE BURNER LABEL SHOULD
BE USED FOR REPLACEMENT.
8. Protect all of the fireside surfaces by swabbing with
neutral mineral oil.
9. Close main cast iron burner door (door on which burner is
mounted). Make sure that the entire seal (fiberglass rope)
is making good contact with the boiler casting when
replacing 3/8-16 x 1" long hex head bolt and tightening.
10.Check and wipe the flue collector seal. This is the high
temperature silicone seal on top of the heat exchanger.
The seal must be in place adjacent to the long bosses on
front and rear section adjacent to the short bosses on the
intermediate section. The seal should be directly under
the flue collector flanges when the flue collector is
replaced. Use the 15 3/8" nuts to fasten the flue collector.
In order to assure a proper seal be sure that the flue
collector is compressing the high temperature silicone
and not hanging up on the section bosses. Tighten the 15
3/8" nuts alternating from corner to corner to ensure even
pressure.
C. If boiler room is damp, provide ventilation.
CAUTION: ALWAYS KEEP THE OIL SUPPLY VALVE SHUT
OFF IF THE BURNER IS SHUT DOWN FOR AN EXTENDED
PERIOD OF TIME.
II. Water Treatment
Treatment for boiler feed water should be considered in
areas of known problems, such as where a high mineral
content and hardness exist. Antifreeze may be added to the
system water to protect the system. Please adhere to the
specifications given by the antifreeze manufacturer. Do not
use automotive, ethylene glycol, undiluted or petroleum-
based antifreeze. Personal injury, death or property damage
can result. Inhibited propylene glycol, especially made for
hydronic systems, is recommended. An antifreeze/water
mixture may require a backflow preventer within the
automatic water feed piping. Check that components such
as diaphragm expansion tanks, radiation, pumps etc. are
suitable for and sized for use with glycol A 40% antifreeze
content normally will provide freeze-up protection to -10°F / -
23°C. A 50% solution will normally provide freeze-up
protection to about -30°F / -34°C.
Note;
• Do not use antifreeze other than specifically made for hot
water heating systems.
• System may contain components which might be
negatively affected by antifreeze.
• Check total system frequently when filled with antifreeze.
• Advise system operator and/or owner that system is filled
with a glycol mix.
• Follow antifreeze manufacturer's instructions.

III. OIL BURNER

CAUTION: ALL SERVICE TO THE OIL BURNER, OIL FILTER,
OIL STRAINER, ETC., SHOULD BE PERFORMED BY A
PROFESSIONALLY TRAINED SERVICE PERSON.
Inspect and clean annually and following any period of improper
operation. Recheck and adjust settings as specified for burner
model and nozzle size. Set burner air and draft regulator, using
test instruments to obtain recommended CO2 and draft without
smoke. Refer to page 5.
INTREPID TRDV