SystemAir VH07, Installation And Maintenance Manual

Page: 23 / 44

English
Watch out, the condensate drain pan could possibly fall during removing of the bottom panel.
Caution
21 VH
CAUTION
BEFORE CARRYING OUT ANY OPERATION ON THE EQUIPMENT, CHECK
THAT THE ELECTRICAL POWER SUPPLY IS SWITCHED OFF AND THAT IT
CANNOT BE SWITCHED ON INADVERTENTLY.
IT IS RECOMMENDED THAT THE DISCONNECT SWITCH BE PADLOCKED
13.4. CONDENSATE TRAY
The condensate tray must be checked regularly to ensure that the evacuation pipe is not blocked. If required,
it can be cleaned and washed with water.
To remove the condensate tray :
1. Remove the filter access panel (
B
).
2. Unscrew and remove the bottom panel (
screws D
).
13.5. COILS
Check that the fins are not clogged or damaged.
To avoid the coils becoming mouldy with an accumulation of tiny impurities, it is recommended that they are
cleaned regularly. If necessary, brush the coils with an appropriate tool.
Take care not to damage the fins during cleaning.
13.6. FAN MOTOR ASSEMBLY
The fan motor assembly does not require any particular maintenance.
The motors are equipped with sliding bearing. Adding oil is not necessary.
However, each time regular maintenance is performed, the fan should be
inspected to check that it turns freely without friction.
In the event of the fan motor overload protection device engaging, wait
for the automatic protection to reset itself and seek out the cause of the
protection device being triggered.
To remove the fan motor assembly :
²
Open the trap door of access to the filter and remove it
²
To withdraw the lower central panel.
²
Disconnect the fan motor assembly power supply starting from the
electric box.
²
Unscrew the 4 fan motor assembly retaining screws (2 on each
side of the unit).
Fan motor assembly
Once a year, drain the water pipes and check for scale formation. De-scale the pipes if required.
13.7. ELECTRICAL SECTION
Check that the main power supply cable is not damaged or altered in such a way as to affect the insulation.
The contact surfaces of relays and contactors should be inspected regularly by an electrician and replaced as
judged necessary. On these occasions the control box should be blown out with compressed air to remove
any accumulation of dust or other contaminants.
Check the earth grounding connection.
13.8. WATER PIPES