Buderus Logalux LT135/2, Logalux LT300/2, Logalux LT160/2, Logalux LT200/2 Installation And Maintenance Manual
6302 4827 – 05/2003 US For Installers
Read these Instructions Carefully for Assembly and Maintenance
Installation and Maintenance
Manual
Indirect-fired Water Heaters
Logalux LT135/2 – 300/2
Foreword
2
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Manual Logalux LT135/2 – 300/2 • Issue 05/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Technical Changes!
Buderus Hydronic Systems, Inc. reserves the right to
make changes due to continued technological and
engineering improvements.
Updating Technical Information
Please contact us if you have suggestions for improving
this manual or when you have noticed incorrect
information.
To these instructions
This Installation and Maintenance manual contains
important information regarding proper installation,
operation and maintenance of the indirect fired domestic
hot water tank series LT135/2 - 300/2 (DHW storage
tank).
The installation and maintenance instructions are
directed at a licensed installing contractor with
knowledge of accepted industry practices for the
installation and maintenance of the equipment and
various applications of the equipment involved.
Please inform the owner regarding proper use of the
equipment and point out the safety components and
features of the equipment.
Please hand over after finalizing the installation
these technical documents to the end user.
Table of Contents
3
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Manual Logalux LT135/2 – 300/2 • Issue 05/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 Standards and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 Tools, Materials and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Application Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Guideline of Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.3 Observe the following Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.4 Waste Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4 Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4.1 Dimensions and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4.2 Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
5 Transport and Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5.1 Moving the Tank on a Pallet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5.2 Moving the Tank Unpackaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6 Tank Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1 Placement of the Tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2 Installation of Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.3 Installation of Temperature Sensor/Aquastat . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.4 Checking Magnesium Anode Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Putting the Tank in Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1 Putting Tank in Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.2 Operating Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.3 Taking out Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.1 Preparing the Tank for Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.2 Cleaning of the Tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.3 Checking Anode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.4 Changing out the Anode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.5 Placing the Tank back in Operation after Cleaning . . . . . . . . . . . . . . . . . . . . . . 19
4
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Manual Logalux LT135/2 – 300/2 • Issue 05/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
General Information1
1 General Information
1.1 Standards and Guidelines
1.2 Tools, Materials and Test Equipment
Standard tools and equipment from the HVAC industry
are required for the installation.
Other useful components:
– Dolly with strap
– Transport aids: 3 pipes with ¾“ NPT or 1“ NPT (see
page 9)
– Dry vac for cleaning
– Electrical test equipment to check anode operation
Caution!
Please observe the local and state
requirements regarding equipment
installation!
NOTICE
When installing the tank in the state of
Massachusetts the installation must by
done by a Massachusetts licensed
plumber or contractor.
Safety Considerations 2
5
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Manual Logalux LT135/2 – 300/2 • Issue 05/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
2 Safety Considerations
2.1 Application Purpose
The LT135/2 - 300/2 are designed to be used for heating
of domestic hot water.
The tanks can only be heated using heating water and
can only be used in closed systems.
2.2 Guideline of Notices
Two levels of danger are identified by the following
warning labels:
The following symbols are used to denote danger and
other notices:
2.3 Observe the following Notices
2.4 Waste Disposal
Dispose of the packaging components in an
environmental friendly manner.
The old replaced DHW tank, if present, shall be
disposed off properly.
WARN ING!
HEALTH DANGER
Denotes a possible severely dangerous
situation where, without proper caution,
bodily injury or loss of life may result.
CAUTION!
DANGER OF INJURY/SYSTEM
DAMAGE
Denotes a possible dangerous situation
that can lead to mild to moderate bodily
injury or physical damage.
WARN ING!
DANGER
Due to electricity.
APPLICATION NOTICE
Application comment for optimum use of
equipment and adjustment as well as
useful information.
WARNING!
HEALTH DANGER
Due to improper cleaning the domestic hot
water can be contaminated.
CAUTION!
TANK DAMAGE
Due to improper cleaning and maintenance.
A bi-annual cleaning is recommended.
Please correct any issue immediately,
to avoid further damage.
APPLICATION NOTICE
Use only original Buderus parts for service
and replacement. We are not responsible
for damage caused by non-Buderus parts.
6
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Manual Logalux LT135/2 – 300/2 • Issue 05/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Product Description3
3 Product Description
The LT135/2 - 300/2 indirect fired domestic hot water
tanks are factory assembled with exception of screw-on
feet (packaged with the boiler) and piping accessories
(packaged in envelope with tank) to be installed in the
field.
The major components of the tank are:
– Tank vessel with corrosion protection
Corrosion protection is provided by hygienic Buderus
Thermoglaze "DUOCLEAN" as well as additional
cathodic protection using a magnesium anode rod
(Fig. 1, Item. 5), which is accessible by means of the
clean-out cover (Fig. 1, Item. 2).
– Clean-out cover (Fig. 1, Item. 2) for maintenance
and service access.
– Insulation (Fig. 1, Item. 3)
The insulation consists of high density polyurethane
directly attached to the tank vessel. An insulating
ring (Fig. 1, Item. 6) reduces heat loss from the
clean-out cover.
– Domestic water temperature sensor bracket (when
using Buderus Logamatic control) (Fig. 1, Item. 4)
The sensor is strapped under the clip on the cleanout cover for temperature control when using a
Buderus Logamatic control. When using a
Honeywell aquastat (not furnished), the coupling and
immersion well supplied are connected to the EZ
connection on the back of the tank.
– Smooth surface heat exchanger
A smooth surface heat exchanger inside the tank
vessel transfers the energy from the boiler water to
the domestic water. The temperature in the tank will
be evenly distributed.
Fig. 1 Logalux LT135/2 – 300/2
Item. 1: Front cover
Item. 2: Clean-out cover
Item. 3: Insulation
Item. 4: Sensor bracket
Item. 5: Magnesium anode rod
Item. 6: Insulation clean out
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