Eden SOFT NC, Installation, Operation And Maintenance Manual, Page: 8 / 24

Vers. 2015-3
8
INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
water cassette
SOFT / SOFT-ECM
WATER CONNECTIONS
The following reasons explain why it is necessary to install the 3-way valve:
- Cassettes with a control board onboard
1) If the water flow is not closed via the valve when the room temperature is
reached, the air sensor installed in intake mode is conditioned by the heat ex-
changer that cools it or heats it via natural convection. The result is that the unit
will not adjust the temperature correctly or it will not go on.
2) The unit has a protection system that intervenes by closing the water flow via
the valve in cases such as:
a) Where there is a condensate discharge problem (if the valve does not close
the water flow, the battery will continue to condense, causing the condensation
basin to overflow).
b) The user inserts the incorrect function on the remote control: hot as op
-
posed to cold.
c) The water temperature rises to 80 °C (which damages the main conden
-
sation basin)
3) The unit has been designed to have continuous ventilation and warm or cool
the room by closing or opening the water flow: this allows for optimal adjustment
inside the room where it is installed.
- Cassettes with and without a control board onboard
4) If the unit remains turned off for a long time in cooling mode and the water
flow is not closed, droplets of condensation may form at the air outlets, which
will subsequently lead to a dripping unit.
ATTENTION!
- Always use suitably sized wrenches to fix or slacken the water pipes.
- It is essential to insulate pipes, valves and connections correctly in order
toavoid the formation of condensation, which could drip into suspended
ceilings causing considerable problems.
The water connections are fixed to the unit body to avoid damage when pi -
pes are connected. It is advisable to tighten the connection with a wrench. The
upper coil connection is fitted with an air valve and the lower connection with
a drain valve, suitable for a 10 mm wrench or screwdriver. (The coil is only
partially drainable; it is advisable to blow air into the coil for complete drainage)
STANDARD WATER CONNECTION TO HEATING/ COOLING SYSTEM
ATTENTION! IT IS COMPULSORY TO INSTALL THE VALVE!
For air supply to an adjacent room and fresh air intake remove sheet knockout
holes anr the insulation.
ATTENTION!
Ducting air to an adjacent room requires the closure of at least the corre-
sponding duct end.
Pic. 10
Pic. 11
Pic. 12
A Knockout for air supply to an adjacent room Ø 150 mm
B Knockout for air supply to an adjacent room 350x100 mm
C (ACCESSORY) Ø 80 mm circular spigot for fresh air intake
D
Knockout for fresh air intake 100x45 mm
A
B
D
C
C
OUT
IN
OUT OUT
IN IN
Balancing valve
Shut off valve 3-way valve
INSTALLATION OF AUXILIARY DRAIN PAN
a) Remove the plastic cap from the condensate drain outlet on the water
cassette.
Do NOT push the cap into the cassette.
Fit the nozzle into the hole (auxiliary condensate drain pan outlet).
b) Fix the auxiliary drain pan to the unit using the relative screws provided in the
kit, ensuring that the condensate pan is level.
Pic. 14
Pic. 13
OUT
OUT
IN
IN