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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 and it could occasionally exceed
120

°

F. Variation in outcoming temperature

could be based on factors including, but not
limited to, usage patterns and type of
installation. Test water at the tap nearest to 
the water heater and storage tank.

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, or
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.
Households with small children or invalids
may require a temperature setting less than
120

°

F to prevent accidental contact with hot

water. To produce less than 120

°

F, use point-of-

use temperature limiting devices.
If higher water temperature is needed in part
of the water system, automatic temperature
limiting devices must be used on all lines to
water taps.

INSTALLER RESPONSIBILITIES

Please read all instructions before installing or
placing this storage tank into service. This
unit must be installed by licensed or
authorized installers, or technical personnel
that service water heating equipment. The
Storage Tank must be installed in accordance
with all local codes and ordinances.

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.

LOCATION

This storage tank should be located in a
central location to the piping system, as close
as possible to the heat source and in an area
not subject to freezing temperatures. Leave
sufficient space for servicing and maintaining
the tank.

THIS MANUAL HAS BEEN PREPARED TO

 ACQUAINT YOU WITH THE INSTALLATION,

OPERATION, AND MAINTENANCE OF YOUR

WATER HEATER AND TO PROVIDE IMPORTANT

SAFETY INFORMATION.

Read all instructions thoroughly before at-
tempting 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 storage
tank. 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 storage tank. The manufac-
turer will not be liable for damages caused by
failure to comply with the installation and 
operating instructions outlined on the 
following pages.

If you lack the necessary skills required or have
difficulty following the directions, seek help
from a qualified person for that part of the
 installation you do not understand.

FAILURE TO FOLLOW THESE INSTRUCTIONS

OR ALL APPLICABLE BUILDING CODES AND

REGULATIONS VOIDS THE WARRANTY ON

THIS WATER HEATER.

Warranty, Registration Card and Parts List are included.

Owner: Please remember to return the Registration Card!

To the Consumer:

Please read these and all component 
instructions and keep for future reference.

To the Installer:

Please attach these instructions 
next to the water heater.

Rev 5 6/16   

Storage Tanks

Instruction Manual

23950

Summary of Contents for 119ST

Page 1: ... must be installed in accordance with all local codes and ordinances 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 LOCATION This storage tank should be located in a central location to the piping system as close as possible to the heat source and in an area not subject to freezing temperature...

Page 2: ...2 28 54 22 7 385 A C W e i g h t l b s D i m e n s i o n s Figure 2 80ST 119ST B Drain Valve Supply Return Conn Aquastat Conn Supply Return Conn T P Relief Valve Conn C A D E D r a i n V a l v e 30 R e l i e f V a l v e 45 Aquastat 0 ANODE ANODE 45 S u p p l y R e t u r n Hot Outlet Figure 1 30ST 50ST C A Supply Return Conn Drain Valve Supply Return Conn Aquastat Conn D E B T P Relief Valve Conn 3...

Page 3: ...on w External Jacket Storage gal Working Pressure Overall Diameter T P Relief Valve Conn Inlet Return Conn Hot Outlet Conn Aquastat Conn Overall Height Length Shipping Weight lbs 119ST A 150 Standard 119 150 28 1 x 1 NPT 2 2 65 385 200ST A 125 Standard 200 125 34 2 x 1 NPT 2 2 79 872 200ST A 150 Standard 200 150 34 2 x 1 NPT 2 2 79 872 Table 2 ASME ST Dimensions Figure 3 ASME Vertical ...

Page 4: ...side near the top of vertical tanks and on the top surface of horizontal storage tanks Relief valves are rated for maximum system pressure and temperature as well as Btu input of the heating appliance This information is normally supplied on a metal tag attached to the end of the valve For a normal domestic water system maximum system pressure is 150 psi and temperature limit is 210 F The Btu per ...

Page 5: ...heat source to the large fitting nearer the center of the storage tank or the large fitting near the top of the side DRAWING 1 Drawing 1 shows a typical installation for a home or business with high peak loads such as multiple showers in the morning This drawing also shows an optional bypass system N C Valve to allow the storage tank to be isolated from the system Cold water is connected to the in...

Page 6: ...he hot water outlet of the water heater to draw hot water back into the storage tank In times of low hot water use this pump can be turned off by a switch or timer preventing the storage tank from being heated A check valve is also used as in the other systems to prevent cold water from diluting the hot water stream DRAWING 3 Drawing 3 shows a storage tank connected to a boiler This system is esse...

Page 7: ...urned to the second water heater in the series DRAWING 5 Drawing 5 shows a Bock storage tank piped to a water water geothermal heat pump supplying heated water to a radiant floor system drawing courtesy of Enertech Mfg MAINTENANCE All Bock storage tanks are equipped with magnesium anode rods These rods must be checked annually and replaced when they become worn to 3 8 inch diameter or less to ensu...

Page 8: ...ded it will remain warranted under this section as if it were the original tank For example if we send you a replacement tank under this limited warranty two years after the original installation date then the replacement tank will remain warranted for the remaining three years after the original installation date HOW DO YOU GET SERVICE UNDER THE LIMITED WARRANTY In order for the warranty period t...

Page 9: ...w the care and maintenance instructions provided with the storage tank Remove the anode rods Fail to inspect and replace the anode rods you must retain and present your paid receipts as proof of anode rod replacement HOW DOES STATE LAW RELATE TO THIS LIMITED WARRANTY This is a limited warranty WE MAKE NO OTHER EXPRESS WARRANTIES WITH RESPECT TO THIS WATER HEATER We will not assume nor authorize an...

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