Pressure Relief Valve (Ecomax 600); Pressure Relief Valve (Ecomax 800) - Vaillant ecoMAX SERIES Instructions For Installation And Servicing

4 Boiler installation sequence

4.11 Pressure Relief Valve (ecoMAX 800)

Fig. 4.8 Fitting the pressure relief valve (ecoMAX 800)
The pressure relief valve and filling loop connection is
provided within the boiler cardboard box and should be
assembled as shown below.
• Remove plug from connection (1).
• Fit and install the complete unit "pressure relief valve,
filling valve and flexible connection" (2) to the connec-
tion (1).
• Connect the corrugated hose (3) to the double check
valve (2a).
• Connect the discharge pipe (4) to the pressure relief
valve.
The discharge pipework should be as short as possible
and installed with a continuous fall away from the boiler.
The pipe should terminate in a position which ensures
that any discharge of water or steam from the valve can-
not create a hazard to persons in or about the premi-
ses,or cause damage to any electrical components or
external wiring,and the point of discharge should be
clearly visible.
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4.12 Pressure Relief Valve (ecoMAX 600)

Fig. 4.9 Fitting the pressure relief valve (ecoMAX 600)
A pressure relief valve is provided within the boiler card-
board box and should be assembled as shown below.
Connect a discharge pipe not less than 15 mm diameter
to the outlet of this valve.
The discharge pipework should be as short as possible
and installed with a continuous fall away from the boiler.
The pipe should terminate in a position which ensures
that any discharge of water or steam from the valve can-
not create a hazard to persons in or about the premises,
or cause damage to any electrical components or exter-
nal wiring, and the point of discharge should be clearly
visible.
Instructions for installation and servicing ecoMAX