Important: The unit's compliance with the above standards does not guarantee the compliance of the
installation as a whole (several other factors not relating to the unit may be involved). As a result, the
installer must observe the applicable recommendations in order to guarantee compliance.
General safety instructions for units with electric elements:
Connecting 42NH to an air flow circuit alters its performance. The user must ensure that the minimum air flow rates
indicated below are respected:
AC Motor
Brushless Motor
Size 2
170 m
3
/h (Speed 2
(1)
)
170 m
3
/h (3,5 volts
(1)
)
Size 3
170 m
3
/h (Speed 2
(1)
)
170 m
3
/h (3,5 volts
(1)
)
Size 4
170 m
3
/h (Speed 1
(1)
)
170 m
3
/h (3,5 volts
(1)
)
Size 5
170 m
3
/h (Speed 1
(1)
)
170 m
3
/h (3,5 volts
(1)
)
Size 6
300 m
3
/h (Speed 1
(1)
)
300 m
3
/h (3,5 volts
(1)
)
Size 7
700 m
3
/h (Speed 1
(1)
)
700 m
3
/h (3,5 volts
(1)
)
(1) Normal usage
■ The operation of the electric heater must be fan-controlled.
Power to the electrical heaters should be cut and the fan delay activated whenever the fan motor assembly is
stopped intentionally or unintentionally.
A two-part safety system is used to protect units equipped with electrical heaters (fig. 9) from accidental overheating:
-
The mechanical safety thermostat with automatic reset.
-
The thermo fuse.
Warning: Never connect several fan coil unit motors in parallel on the same thermostat.
If the thermo fuse is blown, then the electrical heater must be replaced.
■ Remove the fan motor assembly (see the section "Removing the fan motor assembly").
■ Undo the screws on the electrical heater.
Perform these steps in reverse to fit the new electrical heater.
4 - INSTALLATION AND CONNECTIONS
23
Содержание 42NH - CLZ
Страница 5: ...m i k l d c g I a e j b c p o f h n Fig 1 V ...
Страница 8: ...a b Fig 6 Fig 7 Fig 8 VIII ...
Страница 9: ...b a Fig 9 b a Fig 10 IX ...
Страница 10: ...b c Fig 12 a Fig 11 X ...
Страница 11: ...c b a Fig 13 b a a Fig 14 XI ...
