MCZ Hydrotherm 70 User Manual
Page 30
INSTALLATION AND USE MANUAL
Chapter 4
page
30
Installation and assembly
Technical service – MCZ GROUP S.p.A. all rights reserved - Reproduction prohibited
4.8. THERMAL SAFETY DISCHARGE VALVE FOR CLOSED TANK CIRCUIT
(HYDROTHERM 70V)
4.8.1. Function
The Hydrotherm 70V features a closed tank circuit. In this type of
installation it is compulsory to assemble the thermal discharge valve
(optional accessory). This is a device that limits the water temperature.
In case of boiler overheating it activates an emergency exchanger that
causes the immediate cooling of the water. Its use is regulated by the
standards EN 13229, I.S.P.E.S.L. (file “R” - ed. 2005) and UNI 10412-
2. It also complies with EN 14597 and can be used on systems
complying with EN 12828, concerning solid fuel boilers with non
automatic loading and a power of less than 100 kW.
A THERMAL SAFETY DISCHARGE VALVE FOR CLOSED
TANK CIRCUIT (HYDROTHERM 70V) MUST BE
INSTALLED
4.8.2. Technical specifications
543513