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HydroTherm E80
Инструкция по эксплуатации Страница: 31

MCZ HydroTherm E80 [31/45] Installation

INSTALLATION AND USE MANUAL

Chapter 4

page 31

Materials: - body Brass EN 12165 CW617N

- control spindle Brass EN 12164 CW614N

- obturator seal EPDM

- seals EPDM

- spring Stainless steel

- protection cover POM

Max. working pressure 10 bar

Set temperature 95°C

Temperature range 5÷110°C

Discharge flowrate at 110°C and ∆p 1 bar 3000 l/h

Ambient temperature range 0÷80°C

Action type (EN 14597) 2 KP

Max temperature of the sensor 130°C

Medium water

PED category IV

Connections 3/4” F x 3/4” F

Probe connection 1/2” M

Capillary lenght 1300 mm

4.8.3. Installation

Before installing the thermal safety discharge valve, ensure that the

system has no impurities that may be deposited on the outlet housing.

An easy-to-open filter should be installed on the arrival of cold water

and its cleaning should be regularly checked. Upon reaching the

temperature of 95°C, the valve starts to discharge the quantity of water

necessary to maintain the temperature of the boiler within the safety

limits.

Check that the valve's discharge capacity is compatible with the limit

values indicated by the manufacturer of the boiler and the system. For

safety reasons, any cut-off valves placed upstream of the valve must be

open. You should install a pressure reducer at the inlet of water

from the water mains. The reducer must be calibrated at 2 bars at

least and assembled on the proposed pipe of each interception unit at a

distance not exceeding 0.5 m. After having assembled the valve on the

pipe, respecting the flow sense indicated on the valve body (fig.e),

house the part connected to the sensor in its housing (see position 8 of

fig. d). Therefore screw the knurled ring avoiding to tighten it (Fig. a).

Direct the output of the sheath that connects the probe by making the

black cap rotate (Fig. b). Completely tighten the knurled ring (Fig. c).

The diameter of the discharge pipe must correspond to the diameter of

the valve outlet; the maximum length must not exceed 2 m, no more

than two curves are acceptable. If these maximum values are exceeded

(2 curves, 2 m of piping) the diameter immediately superior must be

chosen for the discharge pipe. However, consider that more than three

curves and 4 m of piping are not acceptable. The discharge pipe must

not have upward sections. The discharge pipe of the safety valve must

be created in a way not to stop the regular function of the valves and

not to cause damage to people or objects. In compliance with the

current standards, the discharge of the safety valve must be visible and

channelled into suitable collection pipes.

MCZ HydroTherm E80 [31/45] Installation

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