BOCK 541E Installation Fonctionnement et entretien - Page 5

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CONNECT TO

CHIMNEY

ELECTRIC WIRING

PUTTING HEATER

INTO OPERATION

SET DRAFT AND

ADJUST BURNER

COMBUSTION

(see

burner instructions)

SERVICE:

– 5 –

to each burner as possible to prevent air from being drawn through the return line.

E. Before teeing into an existing oil line, check the vacuum gauge in the 1/4" inlet port or the vent

opening. A single-stage pump should not exceed 12" hg vacuum and a two-stage pump should not

exceed 17" hg vacuum on two-pipe systems.

If the heater performs poorly, recheck the vacuum reading – a high reading will indicate too much

resistance. This could be caused by a clogged filter, a restricted shutoff valve, kinked tubing, an ob-

struction in the oil line, excessive lift or too long a run.

F. If none of the above installations are suitable, Bock recommends an oil booster pump located as

close to the oil supply as possible. Use the existing supply and return lines for the booster pump.

Change the existing unit to a one-pipe system and tee off the one pipe to supply oil to the water

heater.

WARNING: When an appliance using a float valve between the supply tank and the burner is connect-

ed to a supply tank with a capacity over 40 L(9 imperial gallons), a valve operated by a fusible link shall

be installed in the fuel line adjacent to, and upstream from, the float valve.

The water heater shall be connected to a vent system having sufficient draft at all times to ensure safe

and proper operation of the unit. Using "L" or "A" type venting, connect the heater to the chimney. The

size of the connector shall not be smaller than the size of the flue on the water heater. Run a separate

connector from the heater to the chimney where possible. If the heater must be joined to another oil

appliance connector before going into the chimney, enlarge the existing connector to accommodate

the extra volume of gases from the heater. The entrance into the connector should be at a 45

Wiring must be done in accordance with the National Electrical Code and local ordinances. Burners

are supplied with an operating thermostat (Honeywell L4103A or Carlin EZ-Temp 90000B on 72E,

Honeywell L4006A or Carlin EZ-Temp 90000C or Carlin EZ-Temp 90300B on the 361E, and Honeywell

L8100C or Carlin EZ-Temp 90300B on 541E). Models 361E and 541E equipped with Honeywell

controls are also supplied with a separate L40801B high limit (see wiring diagrams). The operating

thermostat should be set at 120

the risk of scalding. Do not set higher than 180

(361E) should be set to 15

F or higher above the operating thermostat setting. The maximum setting is 200

Fill the heater with water, opening a hot water faucet to allow trapped air to escape. Check handholes for

tightness. Check the fuel supply and all fuel lines for tightness. Rotate the blower wheel to loosen the

pump shaft seal. Bleed air from the oil line by opening the bleed valve on the fuel pump. Attach a small

plastic tube to the bleed valve fitting on pump and run to a gallon container. Turn on the electricity and

set the thermostat so the burner motor runs. The heater will not ignite when the bleed valve is open. Bleed

the line until the oil is completely clear (not milky or opaque), transparent and free of air bubbles and froth.

Shut the bleed valve and the burner will ignite. Remove the plastic tube. To keep the burner control from

locking out while bleeding, attach a jumper between the flame detector terminals after starting the burn-

er (remove the jumper when done). Double-check control settings as described previously.

1. Start the burner and verify draft at the breech is between -.02" W.C. and -.05" W.C.

2. Verify that the pump pressure matches the values in the chart.

3. Check the smoke and adjust the air to give #1 smoke.

4. Readjust to give a trace or zero smoke.

5. Check that the CO

level is at 11% or higher. Note: Do not attempt to adjust the burner without

instruments.

6. Open the air adjustment to lower the CO

to the burner manufacturer's recommendations).

The thermostat has been adjusted to 120°F at the factory to reduce the risk of scald injury. Wait until

thermostat has shut off fuel to the main burner; wait 30 seconds following shut off of fuel, then set ther-

mostat to the highest temperature. The main burner should re-light. Set thermostat to the lowest tem-

perature; the main burner should go out. The thermostat should be adjusted in accordance with the

local codes or to the minimum setting that will meet the hot water needs of the consumer. Bock recom-

mends 120°F temperature settings for residential applications for safety as well as energy efficiency.

1. Check the fuel supply, electrical wiring and fuses. Make sure the temperature control is set for heat.

2. If the motor runs but there is no flame, remove the electrode assembly, clean and readjust. Check

the electrode porcelain for cracks and replace if necessary. Check the transformer to see if it is pro-

ducing a strong spark. (Use extreme caution – the transformer has a 10,000 volt output.) Check that

the coupling between the motor and pump shaft is not slipping. Check the set screw on the blower

F for normal domestic hot water use; higher temperatures increase

F. The differential control wheel on the L4006 control

F. The high limit control (L4080B used on 361E and 541E) should be set

by .5% or 1% to allow for draft and fuel variations (refer

angle.