English
The fan-coil units may contain a small amount of oil incompatible with plastic polyethylene piping
(PER/HTA/PVC). The coil should be rinsed out before use to avoid any problem.
It is the installer’s responsibility to contact their pipe supplier and take into account the general
instructions for the use of plastic pipes (PER/HTA/PVC).
Caution
In certain cases the tubes of bottom are not drainable. However, the hydraulic connections on the
lower part of the coil should be vented to the atmosphere by disconnecting all connectors, valves
and pipes from the main hydraulic circuit.
Caution
If the water pipes are exposed to temperatures below 0 °C, take the necessary precautions
(draining, antifreeze, etc.) to avoid the coils freezing. Adding antifreeze to the circuit reduces the
unit's performance (if necessary, please contact our sales network).
Caution
4
3
2
1
Air vents
orifices
9
SysCoil 2
9. HYDRAULIC CONNECTIONS
9.1. OPERATING FACE
The operating face of Left/Right
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position of the hydraulic connections
when the unit is viewed facing the
operator.
Note
: In the example below, the
operating face is on the right.
9.2. COIL WATER CONNECTIONS
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a main chilled water coil with 2 rows (
SC10
), 3 rows (
SC20 to SC80
).
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with 3 rows (
SC10
), 4 rows (
SC20 to SC80
), with chilled water coil
and heated water coil 1 row (on an independent circuit).
The coil headers are equipped with air vent. To vent the air from
the coil, use the air vent located on the upper part of the upper
header. To drain the water, use the drain plug located on the lower
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event of the unit being kept out of service in buildings subjected to
negative ambient temperatures with the possibility of the coil icing.
Flexible pipes are recommended for connecting the coils. Take care not to over-tighten the water connections.
Over-tightening can lead to excessive strains on the materials in the event of major temperature variations.
All the water pipes must be insulated to avoid sweating and heat loss.
OPERATING FACE
1
2
3
4
Entry
Output
Entry
Output
2 pipes
or
or
/
/
4 pipes
