5.3 -
Fan motor assembly
Periodically check the cleanliness of the impeller and the motor. If necessary, clean them using a vacuum cleaner,
taking care not to damage them.
The electric motor's bearings are lubricated for life and do not require specific maintenance.
■
Removing the fan motor assembly (GMV):
WARNING: Disconnect the power supply to the unit before carrying out any work on the unit.
■
Suspended ceiling (Fig. 13) :
■ Remove the removable lower panel (a) using the 4 screws.
■ Ensure the filter is supported as it is lowered as the only support is provided by the removable panel.
■ Disconnect the electrics for the FMA (refer to the note below according to the type of motor in the unit).
■ If one or more electrical heaters are fitted, these must be disconnected from the control panel, then the lower
coil access panel must be removed using the 4 screws.
■ Undo and remove the 4 FMA retaining screws on the lateral panels (b).
■ Support the FMA platform as it is lowered, following the recesses (not present on T6 and T7) provided in the
lateral panels (c).
■ Perform the steps in reverse to reassemble, taking care to ensure the insulation is not damaged.
Note : Disconnection differs depending on the type of fan motor assembly:
■ Asynchronous motor: disconnect the motor wiring loom from the unit's internal wall using the quick-release
connector.
■ Brushless motor: disconnect the wiring loom from the motor using the quick-release connector
■ Brushless motor - T7 only: disconnect the wiring loom from the motor using the connectors (supply and control)
5.4 -
Heat exchange coil
A clean coil is crucial to the efficiency of the unit. If necessary, clean the coil with a vacuum cleaner, taking care
not to damage the fins.
If the coil must be disassembled on account of a leak:
Disconnect the electrical supply to the unit before carrying out any work.
Removing the coil :
■
Suspended ceiling :
Firstly, disconnect the coil.
■ Undo the 4 screws from the hydraulic coil (Fig. 14.a)
■ Remove the removable lower panel (b) using the 4 screws.
■ Ensure the pan + coil are held securely
■ Remove the coil + pan by tilting the assembly on the manifold side downwards.
■ Perform the steps in reverse to reassemble.
5 - SERVICING AND MAINTENANCE
25
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 ...
