Exhausto VEX100CF Series, Оригинальное руководство пользователя

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Explanation of sim-
plified diagram
RD12642GB-02
II - A
III - B
I - AB
Shut-off valve*
Line regulating valve*
Non-return valve*
Three-way motor valve (MVM)
Water heating coil (HCW)/
Cooling coil CCW
Circulation pump*
Pressure difference regulator*
Impurity trap*
*) not EXHAUSTO delivery (refer to the technical specifications in section 7).
Bleeding Following connection of water supply to the unit:
● Bleed the system thoroughly using the upper bleed screw on the water heat-
ing coil
Insufficient bleed-
ing Insufficient bleeding can result in still water forming in the sys-
tem, which may result in frost-induced leaks during the winter.
Fitting motor valve The valve must not be fitted with the motor facing down
Insulate the supply
pipe and heating
coil The pipes and post-heating coil must be insulated according to
applicable regulations
3.3.2 MVM valve
Screening Screen the valve motor from direct sunlight. Due to heat emissions, the valve mo-
tor must not be encapsulated (max. ambient temperature: 50°C).
Insulating the valve To ensure normal operation at ambient temperatures below 0°C, it is very impor-
tant that the valve section is insulated according to current standards/procedures.
MVM-OD, valve for
outdoor fitting If MVM-OD (MVM intended for outdoor fitting) is used, the screening and insula-
tion are part of the delivery. MVM-OD is only possible for valve sizes below 6.3
K
vs
.
Regulating proper-
ties Optimal regulation is achieved when the differential pressure is between 5–20
kPa. See section "Technical specifications" to calculate K
vs
.
Heat supply The heat supply must be constant.
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Mechanical assembly
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