Explanation of simplified diagram
Shut-off valve*
Line regulating valve*
Non-return valve*
Three-way motor valve
(MVM)
Water heating coil (HW)
Cooling/heating coil (CW)
Circulation pump*
Pressure difference regula-
tor*
Dirt filter*
*) not EXHAUSTO delivery (refer to the technical specifications).
3.4.2 Installation requirements
Bleeding
Following connection of water supply to the cooling/heating coil, the system must
be bled thoroughly.
Insufficient bleed-
ing
Insufficient bleeding can result in still water forming in the sys-
tem, which may result in frost-induced leaks at cold ambient
temperatures.
Fitting motor valve
The valve must not be fitted with the motor facing down
Insulate the feed
pipe
The pipes must be insulated according to applicable regulations
Frost protection
cooling coil
The cooling coil can be protected against frost by mixing in 25%
ethylene glycol. This provides frost protection down to -13°C.
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Mechanical installation
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Содержание VEX300 Series
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