Bosch Tronic 3000T ES 2.5 User manual

Tronic 3000T
ES 2.5/4/8...
6 720 801 072 (2018/04) US
Use this manual for installations in the United States of America:
Utilice este manual para las instalaciones en los Estados Unidos de América:
[2] Installation Manual and Operating Instructions
[19] Instrucciones de Instalación y Funcionamiento
NSF/ANSI 61

2
Table of Contents
Tronic 3000T – 6 720 801 072 (2018/04)
Table of Contents
1 Explanation of symbols and safety information . . . 3
1.1 Key to symbols . . . . . . . . . .. . . . . . . . . . . . . 3
1.2 Safety information . . . . . . . . . . .. . . . . . . . . . 3
2 Information about the product . . . . . . . . . .. . . . . . . 5
2.1 Models overview . . . . . .. . . . . . . . . . . .. . . . 5
2.2 Dimensions . . . . . . . . . . . . . . . . . . . . . .. . . . 6
2.3 Technical data . . . . . . . . . . . . . . . . . . . .. . . . 7
3 Installation instructions . . . . . . . . . .. . . . . . . . . . . . . 8
3.1 Mountingthe heater . . . . . . . . . . . . . . .. . . . 8
3.1.1 Wall mounting . . . . . . . . . . .. . . . . . . . . . . . . 8
3.1.2 Floor mounting . . . . . . .. . . . . . . . . . . .. . . . 8
3.2 Pipe connections . . . . . . . . . . . .. . . . . . . . . . 8
3.3 Closed system thermal expansion . . . . . . . . 9
3.4 Electrical connections . . . . . . . . . . . . . .. . . 10
4 Use . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . 10
4.1 Starting and testing . . . . . . . . . . . . .. . . . . . 10
4.2 Temperature setting . . . . . . . . . . . . . . . . . . 11
5 Maintenance . . . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . 11
5.1 Removing the cover . . . . . . . . . . . . .. . . . . . 11
5.2 Draining the heater . . . . . . . . . . . . . . . . . . . 11
5.3 Inspecting the anode rod . . . . . . . . . . . . . . 11
5.4 Removing the heating element . . . . . . . . . . 12
5.5 Descaling the heating element . . . . . . . . . . 12
6 Replacement of parts . . . . . . . . . . . . . . . . . .. . . . . . 13
6.1 Changing the anode rod . . . . . . . . . . . . . . . 13
6.2 Changing the heating element . . . . . . . . . . 13
6.3 Changing the thermostat . . . . .. . . . . . . . . 13
7 Troubleshooting . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 14
7.1 Resetting High Limit Switch . . .. . . . . . . . . 14
8 Bosch interior component diagram . . . . . . . . . . . . 16
9 Bosch Tronic 3000T
LIMITED WARRANTY . . . . . . . . . . . .. . . . . . . . . . . . 17

3
Explanation of symbols and safety information
Tronic 3000T – 6 720 801 072 (2018/04)
1 Explanation of symbols and safety
information
1.1 Key to symbols
Warnings
The following keywords are defined and can be used in this
document:
•NOTICE indicates that damage to property may occur.
•CAUTION indicates that personal injury may occur.
•WARNINGindicatesthatseverepersonalinjurymayoccur.
•DANGER indicates that severe personal injury or death
may occur.
Important information
Additional symbols
1.2 Safety information
▶ READ ALL INSTRUCTIONS BEFORE USING THIS WATER
HEATER.
▶ This water heater must be grounded.
Connect only to properly grounded outlet. See
"GROUNDING INSTRUCTIONS" found on "INSTALLATION
INSTRUCTIONS" .
▶ Install or locate this water heater only provided installation
instructions.
▶ Usethiswaterheater only for its intendeduseasdescribed
in this manual.
▶ The models ES2.5 and ES4 come equipped with a power
cord. Do not use an extension cord. If no outlet is available
adjacenttothe waterheater, contacta qualifiedelectrician
to have one properly installed near the heater. The model
ES8 must be hard-wired. See installation instructions.
▶ Aswithanyappliance, close supervisionis necessary when
used by children.
▶ Do not operate this water heater if it is has a damaged cord
or plug, if it is not working properly, or if it has been
damaged or dropped.
▶ This water heater should be serviced only by qualified
service personnel. Contact a service person for
examination, repair or adjustment.
▶ Failure to inspect the anode rod at least once a year could
causethe tank to fail andleak. Thiscondition isnotcovered
under the manufacturer's warranty.
▶ Any water heater should be installed in such a manner that
if it should leak, the resulting flow of water will not cause
damage to the area in which it is installed. National
Plumbing codes require a drain pan for any water heater
installation. Failure to install one is the sole responsibility
of owner and/or installer. Reference UPC 2006 (Uniform
PlumbingCode)Section508.1,orIPC2006(International
Plumbing Code) Section 504.7.
Warnings in this document are identified by
a warning triangle printed against a grey
background.
Keywords at the start of a warning indicate
the type and seriousness of the ensuing risk
ifmeasuresto preventtheriskare nottaken.
Thissymbolindicatesimportantinformation
where there is no risk to people or property.
Symbol Explanation
▶ Step in an action sequence
Cross-reference to another part of this document
•Listentry
–List/list entry (second level)
Table 1
CAUTION:
When using electrical appliances, safety
precautions to reduce the risk of fire,
electric shock or injury to persons should be
followed, including:
NOTICE:
▶ The installer should review the contents
of this manual with the owner upon
completion of installation, and the
manual should be left withtheownerand
placed in a location close to the
installation.

4
Explanation of symbols and safety information
Tronic 3000T – 6 720 801 072 (2018/04)
Fig. 1
NOTICE:
▶ The manufacturer cannot be
responsible for the damages caused by
improper installation or by failure to
follow instructions in this manual.
Complywiththeinstallationinstructions
before completing electric connection.
NOTICE:
▶ The thermostat has been pre-set at the
factory at a temperature equal or below
51.7 °C (125 °F).
DANGER:
▶ Hydrogen gas can be produced in a hot
water system served by this heater that
has not been used for a long period of
time (generally 2 weeks or more).
Hydrogen gas is extremely flammable.
To reduce the risk of injury under these
conditions, it is recommended that the
hot water faucet be opened for several
minutes at the kitchen sink before using
any electrical appliance connected to
the hot water system. If hydrogen gas is
present, there will probably be an
unusual sound such as air escaping
through the pipe as the water begins to
flow. There should be no smoking or
open flame near the faucet at the time it
is open.
MAX
MIN
OFF
IDEAL
6720801072-07.1V
CAUTION:
▶ Any water heater should be installed in
such a manner that if it should leak, the
resulting flow of water will not cause
damage to the area in which it is
installed. National Plumbing codes
require a drain pan for any water heater
installation. Failure to install one is the
sole responsibility of owner and/or
installer.ReferenceUPC2006(Uniform
Plumbing Code) Section 508.1, or IPC
2006 (International Plumbing Code)
Section 504.7.
CAUTION:
▶ Prior to connecting the power supply,
ensure tank is full of water and system is
purged of air.
NOTICE:
Tank failure due to neglecting to maintain
the anode rod is not covered under
warranty (see Section 5 Maintenance).

5
Information about the product
Tronic 3000T – 6 720 801 072 (2018/04)
2 Information about the product
2.1 Models overview
Models ES2.5 and ES4
Fig. 2
[1] Temperature & pressure relief valve, ¾ NPT male
[2] Cold water inlet ½ NPT male
[3] Thermostat
[4] Temperature & pressure relief valve discharge line to
drain
[5] ¾ NPT female tapping for relief valve
[6] Hot water outlet ½ NPT male
Models ES8 (Horizontal installation)
Fig. 3
[1] Temperature & pressure relief valve, ¾ NPT male
[2] Cold water inlet ¾ NPT male
[3] Thermostat
[4] Temperature & pressure relief valve discharge line to
drain
[5] ¾ NPT female tapping for relief valve
[6] Hot water outlet ¾ NPT male
[7] ¾ NPT male plug
[8] ¾ NPT female tapping for tap
Models ES8 (Vertical installation)
Fig. 4
[1] Temperature & pressure relief valve, ¾ NPT male
[2] Cold water inlet ½ NPT male
[3] Thermostat
[4] Temperature & pressure relief valve discharge line to
drain
[5] ¾ NPT female tapping for relief valve
[6] Hot water outlet ½ NPT male
[7] Hot water outlet ½ NPT male
[8] Hot water outlet ½ NPT male
1
MAX
MIN
OFF
IDEAL
2
4
5
6
3
6720801072-01.1V
1
MAX
MIN
OFF
IDEAL
2
4
53
6720801072-02.1V
6
7
8
1
2
4
53
6720801072-03.1V
6
7
8
MIN
OFF
MAX
IDEAL