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12 - FACTORY OPTIONS AND ACCESSORIES
12.9 - Electrical heaters
■ The auxiliary electrical heaters are ready for operation in two
power stages. This heaters are managed by the electronic
control of the unit that can activate them in the following cases:
- As a backup in HEATING mode, following the input of all the
available compressors.
- In HEATING mode, instead of compressors.
- During the defrosting operation if selected as support.
- As a backup in COOLING mode in accordance with the return
and supply temperatures.
■ Up to 3 values of total power available for each model:
50FF/FC
020 to 028
RAF (Low)
12 kW
RAM (Nominal)
18 kW
RAS (High)
unavailable
■ The electrical heaters are assembled and connected inside the
unit. They can be accessed by the same panel that the supply fan.
"Standard" assemblies:
The heaters are accessed by removing the panels (1) and (2),
and then the inside panel (3), all of them fi xed with M6 Allen
screws.
1
3
2
"In-line" assemblies:
The heaters are accessed by removing the panel (4), and then
the inside panel (5), both fi xed with M6 Allen screws.
4
■ To remove the frame with the electrical heaters it is necessary
to disconnect the safety thermistors from the connection box
and unscrew the frame attachment screw (M4 Allen).
037 to 047
052 to 093
12 kW
18 kW
18 kW
27 kW
27 kW
36 kW
5
■ The electrical heaters incorporate safety thermistors for
protection of the unit against excess temperature. One of them
has automatic reset and tare value at 65ºC, the other one has
manual reset and tare value at 120ºC.
Frame attachment screw
12.10 - Droplet eliminator after the indoor coil
■ The droplet eliminator can be installed in the indoor coil. It's
recommended in cases where a high moisture content in the
air is foreseen or when the air fl ow is high.
■ The droplet eliminator is accessed by that same panels of
electrical heaters, since it is placed between the indoor coil and
the electrical heaters (see previous images).
- "Standard" assemblies: panels (1), (2) and (3).
- "In-line" assemblies: panels (4) and (5).
■ The droplet eliminator frames are easily removable. They can
be moved by rail by lifting the tab.
Note: the droplet eliminator after the
indoor coil is not compatible with the
hot water coil or the gas boiler.
Tab
Automatic reset (65ºC)
Manual reset (120ºC)
45
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