BCS Oil-Fired - Manual (Page 6)

Oil-Fired BCS Page 11
COMPANY’S RESPONSIBILITY
The company’s responsibility is to repair or replace, at our option, with the prevailing compa-
rable Bock model, any part of the equipment, including the tank, sold by the company which
proves to be defective in material or workmanship during the warranty period, when installed
in accordance with applicable codes and ordinances, and operated and maintained in accor-
dance with our instructions, subject to the conditions and exceptions indicated below. Our lia-
bility, in the event of leakage or other malfunction, is strictly limited to repair or replacement
of the defective heater or part, as provided herein. We are not responsible hereunder for inci-
dental property damage or personal injury, consequential costs or damage. Equipment that is
repaired or replaced will carry the unexpired portion of the original equipment warranty.
BURNER AND CONTROLS
Any burner and/or controls used on a Bock water heater other than the ones recommended by
Bock Water Heaters, and listed by Underwriters Laboratories, Inc., will void the water
heater warranty. Bock Water Heaters specifies burners and controls on the basis of safety, re-
liability and performance. Only the following burners and controls have been tested and ap-
proved by Bock Water Heaters and Underwriters Laboratories, Inc., to meet the stringent
standards required by both: 32E-BCS: Carlin 0.75 x 70A; 40E-BCS: Carlin 0.85 x 70A;
51E-BCS and 120E-BCS: Carlin 1.1 x 70A; 190E-BCS: Carlin 1.35 x 70B.
The only controls acceptable for use with these models are as follows:
For normal household applications:
Burner: Carlin EZ1 with 15-minute post-purge and nozzle heater.
Temperature Control (aquastat): 32, 40, 51E-BCS—Carlin EZ-Temp 90000B
120E-BCS—Carlin EZ-Temp 90000C
190E-BCS—Carlin EZ-Temp 90300B
OWNER’S RESPONSIBILITY
At the company’s request, the owner is to return to the factory at Madison, WI, any part, in-
cluding the tank, defective in material or workmanship, and pay all transportation charges for
such return parts and for replacement parts sent from the factory to the owner. The owner will
pay all labor charges for the removal and installation of such parts, including the tank. Any
replacement water heater furnished under this warranty shall remain in warranty only for the
unexpired portion of the original warranty. The owner will have annual inspections of the
anode rods. Bock Water Heaters requires paid receipts to show maintenance of anodes on glass
lined tank claims.
EXCEPTIONS
This warranty will not apply to tanks or parts subject to misuse, abuse, neglect, alteration,
accident, excessive temperature, excessive pressure, lime, silt or sediment accumulation,
corrosive atmosphere, the removal of the magnesium anode rods, noise, odor, rusty water,
the installation of an insulation blanket, installation outside of the United States (excluding
Canada), or on which the serial numbers have been altered. The warranty also does not apply
when the water heater is installed without a new temperature and pressure relief valve and is
not installed in accordance with local codes and ordinances.
Page 6 Oil-Fired BCS
FRESH AIR INTAKE VENT
Proper sealing of the fresh air intake vent material is important, but temperature is not an
issue. Failure to properly seal the inlet venting subjects the burner to possible reverse drafts
after burner shutdown—a hazardous condition with the possibility of creating a fire.
Use only solid or flexible metal duct, rigid plastic, or similar material of 4" diameter. Note: Do
not use flexible plastic dryer vent hose. Avoid tight turns with flexible ducting and limit
length. If using solid ducting, use a maximum of two elbows and 15' horizontal length. One
additional elbow may be used if horizontal distance from the BCS outlet to the heater is re-
duced three feet.
BURNER
The BCS burner is a custom burner equipped with an outside fresh air receiver, nozzle pre-
heater, fuel oil solenoid valve and a custom electronic primary control having a 15-minute
post-purge timer. Do not use burner controls with shorter post-purge times as burner damage
may result.
MOUNT THE OIL BURNER
An aquastat with immersion well is packed with the burner. The thermostat is factory set at
120°F for residential use. The maximum setting for 32, 40, and 51E-BCS models is 160°F; for 120
and 190E-BCS models the maximum setting is 180°F. The adjustable differential on 120E-BCS
models is shipped at 15°. Lower differentials can be used for water temperatures under 160°F.
(See the caution on page 2 regarding temperature variations.) Install the immersion well with
the aquastat and verify that the sensing bulb may be fully inserted into the well. (Refer to
“Controls” section on page 10.)
Remove the cardboard core from the burner opening in the water heater. Mount the burner on
stud bolts, making sure to place the supplied gasket between the burner flange and heater.
Secure the burner to the heater with the
1 ⁄ 4 -20 nuts or 3 ⁄ 8 " ؂ 16 cap screws supplied.
CONNECT THE ELECTRICITY
REFER TO BURNER WIRE DIAGRAM (page 4). All wiring must comply with applicable codes
and ordinances. The primary relay and aquastat are wired to the burner at the factory. Install
the aquastat well in the
3 ⁄
4
" tapping at the front of the heater. Be sure the sensing bulb is all
the way in. Tighten the aquastat retaining screws to secure the control to the well. Connect
the power supply to the aquastat, being sure to run through a fused disconnect switch (to be
attached to heater in the field).