CIAT COADIS LINE 600, Инструкция по эксплуатации

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He must pay particular attention to the risks of overflowing and splashes.
■ To vent the air, loosen the drain screw (Fig.8, rep. a) by a maximum of 3 turns.
■ To drain the unit, ensure the unit is hydraulically isolated from the network and loosen the drain screw (Fig.8,
rep. b) by a maximum of 3 turns.
The coil can be partially drained, however precautions must be taken during winter if the installation
is shut down. To drain completely, air must be blown through the circuit.
If the hydraulic connections are completed, it is not necessary to insulate the valves to prevent
condensation (unless they are specific valves). A naturally inclined ABS auxiliary condensate
drain pan is supplied with the unit. This recovers condensate from the valves and coil (from the
main pan) and drains it via gravity or using a condensate drain pump supplied as an option.
Installation
To avoid damaging the CIAT valves or couplings, never torque tighten to more than 3,5 daN.m.
Use two wrenches, one to hold and the other to tighten to ensure a tight seal.
Always fit the valve in the right direction. On the 2
CIAT couplings, the direction of flow should
be A → AB (A being connected to the coil and AB to the hydraulic network).
The maximum allowable differential pressure for our valves (open or closed) is 100 kPa. We recommend not
exceeding 60 kPa. Refer to the valve manual for specific supplies.
Design
The positioning of the hydraulic networks is crucial to the correct operation of the system. Drain valves should
therefore be placed at the appropriate points and in sufficient number. In addition, strainers should be fitted, as well
as drains at circuit high points, balancing tees and shut-off valves on each coil and, if necessary, discharge valves.
Pressure safety:
The installation must be protected against any risk of overpressure. Special care must be taken to protect against
the risks linked to expansion of the energy transfer fluid and to the total hydrostatic pressure.
Filtration:
An efficient filtration system (recommended efficiency of 0,5 mm) should be fitted on the supply water and return
water lines.
Flushing:
The system must be flushed completely and filled with treated water to prevent the build-up of scale or sludge in
the circuit. When flushing the system, open the thermo or modulating valve on the unit to prevent any sludge or
impurities from entering the coil:
4 - INSTALLATION AND CONNECTIONS
EN-19 COADIS LINE
TM
600