WALTIS VIVA GT 25, Instructions For Use Manual

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VALTIS OGREVANJE d.o.o.
16
CONNECTING THE BOILER
installer
manual
Viva
GT
PRECAUTION
•
The hydraulic
network must be
provided with anti-
condensation
protection to
prevent
condensation in the
boiler.
5.3.6 Protection against condensation
The protection against condensation prevents water from the heating network
from entering the boiler when the water in the boiler has cooled below 58 °C.
The electronics installed into the boiler enable the control of the mixing valve, which ensures
the correct mixing of cold water from the storage tank and hot water from the furnace. When
the water in the lower part of the storage tank starts to rise above 60 °C, the mixing valve
starts to open, which allows a greater exchange of energy between the furnace and the
water storage tank.
For full operation of the boiler it is mandatory to install a three-way mixing
valve 5/4'' with motor drive (e.g. PROMIX AVC05 5Nm, 2 min, 230V and flow pumps
25-60-180) or the exact equivalent of the one described. The diameter of the pipe
between the boiler and the water storage tank must be 35 mm in diameter. In the
event that the equipment installed is not in accordance with the requirements, the
manufacturer shall not be held liable for any malfunctioning of the boiler. However,
the person authorised to start the boiler has the right to cancel the boiler start-up.
Any costs incurred in connection with this shall be borne by the customer themself
or by the person who installed the boiler.
PUMP OEP 25-60-180
Explanation of labels:
- Mixing valve PROMIX AVC05 5Nm, 2 min, 230V:
Three-port mixing valve, 90
degree rotation angle
Torque 5 Nm
Connection voltage 230V~
Engine rotation speed,
2 min for 90 degrees
- Pump 25-60-180:
Nominal suction and
pressure connection
diameter, 25mm, 1 inch
Installation length [mm]
Maximum pressure level [dm]