Bock Water heaters 30SK Instruction Manual
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Bock Water heaters 30SK Instruction Manual

Indirect water heater
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Table of Contents

To the Installer:
Please attach these instructions
next to the water heater.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause serious
injury or property damage. Refer to this
manual. For assistance or additional
information, consult a qualified installer or
service agency.
CAUTION
The recommended temperature for normal
residential use is 120°F. The dial on the
aquastat does not always reflect the out-
coming water temperature, which could
occasionally exceed 120°F. The variation in out-
coming 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.
WARNING
Hotter water increases the risk of scald injury.
Before adjusting the water temperature setting,
read this instruction manual. Temperatures at
which injury occurs vary with the person's age
and the length of exposure.
The slower reaction time of children, elderly,
and physically or mentally challenged persons
increases the scalding hazard to them. It is
recommended that lower water temperatures
be used where these exposure hazards exist.
Such households may require a temperature
setting less than 120°F to prevent accidental
contact with hot water.
To lower water temperature use point-of-use
temperature limiting devices.
WARNING
Water heater blankets are not recommended
and will void the warranty.
THIS MANUAL HAS BEEN PREPARED
TO ACQUAINT YOU WITH THE INSTALLATION,
OPERATION, AND MAINTENANCE OF
YOUR WATER HEATER AND TO PROVIDE
IMPORTANT SAFETY INFORMATION.
23955
To the Consumer:
Indirect Water Heater
Warranty, Registration Card and Parts List are included.
Homeowner: Please remember to return the Registration Card!
Please read these and all component
instructions and keep for future reference.

Instruction Manual

INSTALLER RESPONSIBILITIES
Please read all instructions thoroughly before
installing or placing the heater into service.
This unit must be installed by licensed or
authorized installers, or technical personnel
that service water heating equipment. The
heater must be installed in accordance with all
local codes and ordinances.
These instructions are a guide for the correct
installation of the water heater. The
manufacturer will not be liable for damages
caused by failure to comply with the installation
and operating instructions outlined on the
following pages.
CAUTION
The recommended water temperature setting for
normal residential use is 120°F/49°C.
HANDLING
Before uncrating, check for shipping damage.
Report any damage to your carrier. Note damage
on bill of lading or delivery receipt and file a
claim.
FAILURE TO FOLLOW THESE INSTRUCTIONS
OR ALL APPLICABLE BUILDING CODES AND
REGULATIONS VOIDS THE WARRANTY
ON THIS WATER HEATER.
Read all instructions thoroughly before
attempting installation or operation of your
water heater. Keep these instructions for future
reference.
Local plumbing and electrical codes must be
followed in the installation of this water
heater. In the absence of a local code use the
UNIFORM PLUMBING CODE and the NFPA
Code. Local codes may supersede instructions
in this installation manual.
These instructions are a guide for the correct
installation of the water heater. The
manufacturer will not be liable for damages
caused by failure to comply with the
installation and operating instructions
outlined on the following pages.
Rev 8 6/16

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  • Page 1: Instruction Manual

    To the Installer: To the Consumer: Please attach these instructions Please read these and all component next to the water heater. instructions and keep for future reference. Indirect Water Heater Instruction Manual Warranty, Registration Card and Parts List are included. Homeowner: Please remember to return the Registration Card! INSTALLER RESPONSIBILITIES Please read all instructions thoroughly before...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Section I: Specifications ..........3 Section II: General Information .

  • Page 4: Section I: Specifications

    Return, 1" To Boiler Return, 1"NPT Drain Valve Cold Inlet, 1 1/2" NPT Figure 1: 30SK, 40SK, 50SK Figure 2: 80SK, 119SK Table 1: Dimensions D i m e n s i o n s Model 30SK ⁄ ⁄ ⁄...
  • Page 5 SECTION I: SPECIFICATIONS (cont.) Table 2: Capacity & Performance P e r f o r m a n c e C a p a c i t i e s Model 30SK 59,000 40SK 105,000 50SK 105,000 80SK 120,000 119SK...

  • Page 6: Section Ii: General Information

    SECTION II: GENERAL INFORMATION LOCATION The indirect water heater should be located in a central location to the piping system, as close as practical to the boiler and in an area not subject to freezing temperatures. Leave sufficient space for servicing and maintaining the heater. Note: Long heating supply runs can lengthen recovery times.
  • Page 7 SECTION II: GENERAL INFORMATION (cont.) ANODE RODS The anode rod is used as a sacrificial element within the volume of the storage tank. The purpose of the magnesium anode rod is to protect the inside of the tank against corrosion. Anode rods should be inspected twice in the first year and at least yearly once a time interval for inspection has been developed.

  • Page 8: Section Iii: Pre-Installation

    SECTION III: PRE-INSTALLATION BOILER AND CIRCULATOR SIZING The ratings published in this manual for your Bock indirect water heater can be obtained through proper selection of boiler output and circulator capacity. As noted, the ratings in Table 2 are based on a 77°F rise with 58°F potable water inlet temperature at a circulator pump flow rate of 14 GPM.
  • Page 9 SECTION III: PRE-INSTALLATION (cont.) UP 15-42F/FR Closed Systems, 60 Hz Figure 4: GRUNDFOS UP 15-42F performance curve UP 26-64F Closed Systems, 60 Hz Figure 5: GRUNDFOS UP 26-64F performance curve Note: Zone valves on the heat source supply to the indirect heater are not recommended and will drastically reduce performance.

  • Page 10: Section Iv: Installation

    All piping to the inlet (cold) and outlet (hot) domestic water connections should be new copper with a minimum size of 1/2” ID for models 30SK, 40SK, and 50SK. Use 3/4” ID minimum for models 80SK and 119SK.
  • Page 11 SECTION IV: INSTALLATION (cont.) See Figure 8 for piping your Bock indirect water heater to a low-mass boiler (diagram recommended by boiler manufacturer). HEATING ZONE FROM HEATING ZONE CHECK VALVES ZONE CIRCULATORS ISOLATION VALVES ISOLATION VALVES LESS THAN (4) SEPARATOR PIPE DIAMETERS AIR VENT ADDITIONAL...

  • Page 12: Electrical Connections

    SECTION IV: INSTALLATION (cont.) ELECTRICAL CONNECTIONS Figures 9 and 10 are general wiring diagrams. For a maintaining temperature boiler, Figure 9 should closely match your system. For cold start boilers your wiring may resemble Figure 10, but will vary depending on the boiler type and controls or relays used.

  • Page 13: Section V: Maintenance

    SECTION V: MAINTENANCE WATER PIPING On an annual basis, all piping should be checked for leakage at joints, shut-off valves, and unions. T&P RELIEF VALVE On an annual basis, the temperature and pressure relief valve should be checked for proper operation.

  • Page 14: Section Vi: Troubleshooting

    SECTION VI: TROUBLESHOOTING PROBLEM CAUSE SOLUTION No hot water at faucet Boiler does not Refer to boiler installation operate instructions Check main service switch Check fused disconnect Circulator does not Check power supply operate Replace as necessary Check aquastat setting Improper aquastat Turn tank aquastat to safe setting...

  • Page 15: Section Vii: Parts List

    Nipple 3/4 x 3", Hot Out or T&P 80SK, 119SK 15335 Nipple, 1 1/2" 80SK, 119SK 17560 Cap, Magnesium Anode Rod 30SK, 40SK, 50SK, (3) 80SK, (3) 119SK 17535 Leak Detector Fitting 30SK, 40SK 17540 Leak Detector Fitting 50SK, 80SK, 119SK 21780 T&P Relief Valve 3/4"...

  • Page 16: Section Viii: Warranty

    SECTION VIII: WARRANTY LIMITED WARRANTY FOR INDIRECT WATER HEATER Bock Water Heaters, Inc. 110 S. Dickinson Street Madison, WI 53703 Phone: 608-257-2225 WHAT DOES THIS LIMITED WARRANTY COVER? This limited warranty applies only to the original consumer purchaser General Defects and Malfunctions: This warranty covers defections and malfunctions in your new water heater for a period of one year from the original installation date.
  • Page 17 Monday through Friday between the hours of 8 o’clock a.m. to 5 o’clock p.m. Central Time at the following number: 1-608-257-2225. You can also write us at the following address: Bock Water Heaters, Inc. Warranty Support Group 110 S. Dickinson Street Madison, WI 53703 We will respond not later than ten days after we have received your request for service.
  • Page 18 INDIRECT, AND WHETHER ARISING IN CONTACT OR TORT. Some states do not allow the exclusion of incidental or consequential damages, so the above exclusion may not apply to you. Bock Water Heaters, Inc. • 110 South Dickinson Street • Madison, WI 53703 Telephone 608 -257-2225 • Fax 608 -257-5304 www.bockwaterheaters.com...

This manual is also suitable for:

50sk40sk80sk119sk

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