emmeti 07810211, Руководство по установке, Страница: 7 / 28

7
IT GB
The unit pulls air out for 70 seconds, then it pushes air in for the same time.
When heated air is pulled (extracted) from inside the room, it warms up the heat exchanger; when the cold air is pushed (supplied) in the room, it
gets preheated, recovering most of thermal energy which would be otherwise lost in the ventilation process.
The unit runs at the speed selected by activating the two-position switches “S1”, “S2” and “S3” of the SEL42M and SEL4W, accessory Fig. 64).
The same functionality can be achieved with SEL42M and SEL4W or with 3 two-position switches.
VERSIONS
OPERATION
• Do not immerse the device or its parts in water or other liquids.
• Turn off the main switch whenever a malfunction is detected or when cleaning.
• For installation an omnipolar switch should be incorporated in the fixed wiring, in accordance with the wiring regulations, to provide a full
disconnection under overvoltage category III conditions (contact opening distance equal to or greater than 3mm).
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a
hazard.
• Do not obstruct the fan or exhaust grille to ensure optimum air passage.
• Ensure adequate air return/discharge into/from the room in compliance with existing regulations in order to ensure proper device operation.
• If the environment in which the product is installed also houses a fuel-operating device (water heater, methane stove etc., that is not a “sealed
chamber” type), it is essential to ensure adequate air intake, to ensure good combustion and proper equipment operation.
External hood in aluminium, painted in white (RAL 9010), acoustically lined.
When the units are installed in pair, they must be synchronised so that when one unit is extracting, the other is supplying, and viceversa.
This is achieved by setting the dedicated jumper. (Fig. 21A-21B)
SYNCHRONISATION
WARNING:
Ensure that the electric wiring to L and N is done correctly; an incorrect connection will lead to malfunction or permanent damage of the fan
S3 switch activates the “Free cooling “ (Bypass) mode , which stops alternate flow and keeps the fan in “extract-only” or “intake-only” mode, to
avoid the heat exchange when necessary. To set the extract-only” mode or “intake-only”, place the integral jumpers as per Fig.21A or Fig.21B).
The front cover LED indicates when the Free cooling mode is on.
The speed increase can be automatically achieved through room sensors like SEHR2M and SEHRW, SEIR2M and SEIRW or SECO2W, connecting
such switch in parallel to the S2 switch.
Wiring diagram of one unit: Fig. 19A
Wiring diagram with ambient sensors: Fig.19B and Fig.19C - Wiring diagram of two or more units: Fig.19D
S1 S2 S3
II
I
“S1” “S2”
Operation
O O OFF
I O Velocità 1
O II Velocità 2
I II Velocità 3
“S3” operation
heat recovery
(Alternating flow)
Free cooling
ONE 15
Speed Air flow
Absorbed
power
Sound
pressure *
m 3 /h W dB(A)
I 10 1,2 24
II 17 1,7 31
III 25 2,6 44
* soud pressure at 3m and costant enviroment R=10m 2
ONE 40
Speed Air flow
Absorbed
power
Sound
pressure *
m
3
/h W dB(A)
I 20 1,4 26
II 41 2,3 35
III 60 3,8 42
* soud pressure at 3m and costant enviroment R=10m
2