8
We reserve the right to make any changes due to technical modifications!
Installation and Maintenance Instructions Logalux S 120 „US“• Issue 07/2001
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Assembly and Installation
4
4.2
Tank Piping Installation
1.
Install all piping and components per local and state
codes (Fig. 6).
Use threaded connections on all tank fittings. Fittings
are supplied. It is suggested to install shut off valves
in all water lines.
Install the 3/4“ brass tee fitting on the DHW outlet
connection (AB) with the teflon tape provided. Install
P and T valve (Fig. 6,
Item. 2
) into top of the brass
tee. Pipe the relief line full port to a nearby floor drain.
Add label to P and T relief valve stating: „Relief valve
may release water during heating of the tank“.
Install furnished 3/4“ brass couplings with teflon tape
provided on other three tappings located on top of the
tank. (See Fig. 4 for details)
Periodically test the operation of the P and T valve by
manually opening the valve.
All piping must be installed without undue stress!
Test all piping connections for leaks.
Safety Valve Requirements *
*based on DIN norm 4753.
Fig. 6
Tank piping installation (sample picture)
Item. 1:
Tank
Item. 2:
P and T valve
Item. 3:
Shut off valve with drain
Item. 4:
Purge valve / vacuum breaker
Item. 5:
Flow valve
Item. 6:
Isolation valve
Item. 7:
DHW recirculation pump (optional)
Item. 8:
Pressure reducing valve (as required)
Item. 9:
Test port ( as required per local code)
Item. 10:
Back flow preventer ( as required per local code)
Item. 11:
Pressure test port ( as required)
Item. 12:
Tank drain
AB:
DHW outlet
EK:
Cold feed
EZ:
DHW recirc inlet
EL:
Tank drain connection
Minimum
Connection
Size
Net Water Volume
Max. Heating
Capacity
Liters/gals
Btu/hr
DN 15 (=1/2“)
200/53
255,000
