Bosch Tronic 3000T Safety guide

Use this manual for installations in the United States of America:
Utilice este manual para las instalaciones en los Estados Unidos de América:
[3] Installation Manual and Operating Instructions
[14] Instrucciones de Instalación y Funcionamiento
Tronic 3000T
ES 2.5/4/8...
6 720 801 072 (2013/05) US

2| Table of contents
Tronic 3000T6 720 801 072 (2013/05)
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 . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Models overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Mounting the heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Pipe connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Closed system thermal expansion . . . . . . . . . . . . . . . . . . 7
3.4 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Starting and testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Temperature setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Removing the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Draining the heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Inspecting the anode rod . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.4 Removing the heating element . . . . . . . . . . . . . . . . . . . . . 9
5.5 Descaling the heating element . . . . . . . . . . . . . . . . . . . 10
6 Replacement of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1 Changing the anode rod . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2 Changing the heating element . . . . . . . . . . . . . . . . . . . 10
6.3 Changing the thermostat . . . . . . . . . . . . . . . . . . . . . . . 10
7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.1 Resetting High Limit Switch . . . . . . . . . . . . . . . . . . . . . 11
8 Bosch interior components diagram . . . . . . . . . . . . . . . . . . . 12
9 Bosch Tronic 3000T
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Explanation of symbols and safety information | 3
6 720 801 072 (2013/05)Tronic 3000T
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.
•WARNING indicates that severe personal injury may occur.
•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 in accordance with the
provided installation instructions.
▶ Use this water heater only for its intended use as described 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 adjacent to the
water heater, contact a qualified electrician to have one properly
installed near the heater. The model ES8 must be hard-wired. See
installation instructions.
▶ As with any appliance, close supervision is 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 cause the
tank to fail and leak. This condition is not covered under the
manufacturer's warranty.
▶ Any water heater should be installed in such a manner that ifit 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 Plumbing Code) Section 508.1, or IPC 2006(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 if measures to prevent
the risk are not taken.
This symbol indicates important information where
there is no risk to people or property.
Symbol Explanation
▶ Step in an action sequence
Cross-reference to another part of the document
• List entry
– 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 with the owner and placed in a
location close to the installation.
NOTICE:
The manufacturer cannot be responsible for the
damages caused by improper installation or by failure to
follow instructions in this manual. Comply with the
installation instructions 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) (
Fig. 1).

4| Information about the product
Tronic 3000T6 720 801 072 (2013/05)
Fig. 1
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
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 willprobablybe anunusual soundsuch as
air escaping through the pipe as the water begins to
flow. There shouldbe no smokingor open flamenear the
faucet at the time it is open.
CAUTION:
Any water heater should be installed in such a manner
that if it should leak, the resulting flow of water will not
causedamageto thearea inwhichit isinstalled.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 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).
MAX
MIN
OFF
IDEAL
6720801072-07.1V
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

Information about the product | 5
6 720 801 072 (2013/05)Tronic 3000T
Models ES8 (Vertical installation)
Fig. 4
[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
2.2 Dimensions
Models ES2.5 and ES4 (Vertical installation only)
Fig. 5
1
2
4
53
6720801072-03.1V
6
7
8
MIN
OFF
MAX
IDEAL
10 ¾”
6¼”
3½”
13 ½”
9”
3½”
2½”2 ½”
3¾”
13 ¾”
½ NPT male
13 ¾”
5”
38
1”
6720801072-04.1V
ES2.5 ES4