Tank Installation
6
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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
6.2
Installation of Water Piping
Please observe the following warnings before piping the
indirect tank. Follow these warnings carefully to ensure
trouble free operation. The installation of the indirect-
fired hot water tank and all associated piping must be in
accordance with all applicable codes and regulations.
All work must be done by a licensed contractor.
Fig. 10
Installation Diagram
Item. 1:
Indirect-fired hot water tank
Item. 2:
Service valve
Item. 3:
P and T relief valve
Item. 4:
Flow check
Item. 5:
Tank charging pump
Item. 6:
Optional DHW recirc pump
Item. 7:
Air purge valve
Item. 8:
Drain valve
Item. 9:
Back flow preventer
Item. 10:
Thermal expansion tank
AW:
DHW outlet
EZ:
DHW recirc tapping
VS
Boiler supply
RS
Boiler return
EK/EL:
DHW inlet/drain
Install furnished brass tees on AW and EK/EL
connections. Install supplied P and T valve on ¾"
connection of brass tee at the AW connection; install
tank drain on ¾" connection of brass tee at the
EK/EL connection.
If using a Logamatic control or Goldline SP30D
control, plug EZ connection, or use it for DHW recirc.
If using a Honeywell aquastat for tank water
sensing, use furnished ¾" coupling and long shank
immersion well on EZ connection to mount
Honeywell aquastat on.
CAUTION!
TANK DAMAGE
In the domestic water connections AW, EZ
and EK you will find protective inserts.
These inserts provide additional protection
to the coated interior pipe surfaces.
Keep these inserts in place during
piping.
WARNING!
HEALTH DANGER
The domestic water can be contaminated
if the assembly process is done in a
unclean fashion.
Install all domestic water piping in a
hygienic fashion and clean all joints
thoroughly.
CAREFUL!
SYSTEM DAMAGE
Due to unprofessional installation.
Observe all local codes and regulations
as well as common industry standards
during installation and operation of the
tank.
NOTICE
When a backflow preventer is present or
required, a domestic expansion tank must
be used.
CAREFUL!
SYSTEM DAMAGE
Due to leaking connections.
Install all piping connections without
tension.
When using flexible connections, make
sure they are not kinked or twisted.
NOTICE
If boiler output exceeds 100,000 Btu/hr,
change the P and T relief valve to match or
exceed the boiler rating.
