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Service Manual Bock Water heaters - 32E, 33E, 20PP, 32EC, 51PP, 20E, 40E, 50ESC, 50ES, 33PP, 32PPC, 51EC, 40PP, 51E, 32PP

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TO THE CONSUMER:
Read these and all com-

ponent instructions.

Please keep for future

reference. Please re-

member to return the

registration card.
Waranty, registration

card & parts list included.

TO THE INSTALLER:
Please attach these in-

structions next to the

water heater.

BOCK RESIDENTIAL OIL-FIRED

WATER HEATERS

Model numbers: 20e, 20pp, 32E, 32EC, 32PP,

32PPC, 33E, 33PP, 40E, 40PP, 50ES, 50ESC,

51E, 51EC, 51PP, 51PPC, 71E, 120E

WARNING:

Improper installation, adjustment, alteration, service

or maintenance can cause serious injury or prop-

erty damage. Refer to this manual. For assistance

or additional information, consult a qualified installer

or service agency.

WARNING:

If the information in these instructions is not fol-

lowed exactly, fire or explosion may result and can

cause property damage, personal injury or death.

WARNING:

Follow minimum combustible clearance as noted

on water heater label. Do not install on combustible

flooring (see Figure 2, Page 3). Install in accor-

dance with all local codes. In the absence of local

codes, refer to NFPA 31 or ANSI Z21.10.1.

CAUTION:

The recommended temperature for normal residen-

tial use is 120°F. The dial on the aquastat does not

always reflect the outcoming water temperature,

which could occasionally exceed 120°F. The varia-

tion in outcoming temperature could be based on

factors including but not limited to usage patterns

and type of installation. Test your water at the tap

nearest to the water heater. (See page 5 for mea-

suring the outcoming water temperature).

WARNING:

Hotter water increases the risk of scald injury. Be-

fore changing the temperature setting, read the

instruction manual. Temperatures at which injury oc-

curs vary with the individual’s age and length of

exposure.
The slower reaction times of children, elderly and

physically or mentally impaired persons increases

the scalding hazard to them. It is recommended lower

water temperatures be used where these situations

exist.
Households with small children or invalids may re-

quire a temperature setting less than 120°F to prevent

accidental contact with hot water.
To lower water temperature use point-of-use tem-

perature limiting devices.

WARNING:

Flammable vapors may be drawn to this water heat-

er from other areas of the structure by air currents.
Do not store or use any flammable liquids in the

vicinity of this heater.

WARNING:

Water heater blankets may restrict air flow to the

heater and cause fire, asphyxiation, personal injury

or death.

Bock Water Heaters, Inc.

110 South Dickinson Street • P.O. Box 8632 • Madison, WI 53708-8632

Phone: 608/257-2225 • Fax: 608/257-5304 • www.bockwaterheaters.com

INSTALLATION, OPERATION &

MAINTENANCE INSTRUCTIONS

Pages:
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Summary of Contents

  • p. 1/12
    TO THE CONSUMER:Read these and all com- ponent instructions. Please keep for future reference. Please re- member to return the registration card.Waranty, registration card & parts list included. TO THE INSTALLER:Please attach these in- structions next
  • p. 2/12
    – 2 – THIS MANUAL HAS BEEN PREPARED TO ACQUAINT YOU WITH THE INSTAL- LATION, OPERATION, AND MAINTENANCE OF YOUR WATER HEATER AND TO PROVIDE IMPORTANT SAFETY INFORMATION. Read all instructions thoroughly before attempting installation or operation of the
  • p. 3/12
    The drain valve fitting may be used as an alternate cold water inlet on heaters equipped with a dip tube, as shown in Figure 3. By plumbing a “T” into the drain fitting, the cold water inlet can be relocated to this point. The dip tube must be removed and
  • p. 4/12
    – 4 – Inspect the incoming water line for check valves or water pressure reducing valves. Any type of check valve may cause pressure to build up in the heater and cause tank failure. If the heater is installed in a closed system or if backflow pre- venters
  • p. 5/12
    – 5 – PLACE THE WATER SYSTEM IN OPERATION Warning: Handhole cover may loosen during shipping – check for tightness before putting heater in operation. For any horizontal run exceeding the maximum length specified in Figure 4, or any lift of more than 10
  • p. 6/12
    – 6 – 5. While the burner is operating, disconnect one of the yellow cad cell wires. Check to see that the burner control locks out in the time specified on the control. Reattach the wire and reset the control. The burner should restart. Note: You may have
  • p. 7/12
    – 7 – SERVICE 1. Check the fuel supply, electrical wiring and fuses, and make sure temperature control is calling for heat. 2. If the motor runs but there is no flame, remove the electrode assembly, clean, readjust to the burner manufacturer’s specifications,
  • p. 8/12
    L4080B L4006A FIGURE 8 : Honeywell L4006A w/ L8080B For Models: 50, 120E FIGURE 6 : Beckett or Wayne burner w/ Carlin EZ-Temp For Models: 32, 33, 40, 50, 51, 71, 120E FIGURE 7 : Honeywell L4103A-1142 For Models: 32, 33, 40, 51, 71E FIGURE 7 NOTES: Set point
  • p. 9/12
    – 9 – ITEM DESCRIPTION 1. Cold Water Inlet Dip Tube (N/A 33E & 40E) 2. Plastic Cap 3. Magnesium Anode Rod (aluminum avaliable) 4. Name Plate/Rating Label 6. Immersion Well & Aquastat 8. Drain Valve 9. Mounting Bracket Gasket 10. Burner Mounting Bracket
  • p. 10/12
    – 10 – LIMITED WARRANTY This warranty covers “Bock” Water Heater models 20e, 20pp, 32E, 32EC, 32PP, 32PPC, 33E, 33PP, 40E, 40PP, 50ES, 50ESC, 51E, 51EC, 51PP, 51PPC, 71E and 120E. Bock Water Heaters, Inc., a division of Bock Corporation–a Wisconsin corporation–at
  • p. 11/12
    – 11 – BOCK BURNER MODEL/ MAX MODEL MAX MODEL (OIL) MFR. OEM # INPUT OEM # INPUT 32E, 32EC, 33E WAYNE MSR/371-001B 0.75 X 80A 32PP, 32PPC WAYNE HS/371-009HS 0.75 X 80A 40E WAYNE MSR/371-030B 0.90 X 70A 5IE, 51EC WAYNE MSR/371-003B 1.10 X 80A 50ES, 120E WAYNE
  • p. 12/12
    – 12 – Bock Water Heaters, Inc. 110 South Dickinson Street • P.O. Box 8632 • Madison, WI 53708-8632 Phone: 608/257-2225 • Fax: 608/257-5304 • www.bockwaterheaters.com Form 23420 Rev 4 3/2007