12
8.1 - PRELIMINARY CHECKS
• Make sure:
- that the refrigerant fittings are correctly tightened and that the two shut-off valves are open.
- that there are no leaks.
- that the air handler and the condenser unit are well fixed.
- that the power cables are well fixed to their connection terminals. Loose terminals can cause heat build-up on the terminal
board.
- that the electric cables are properly insulated from any pieces of sheet or metal parts which could damage them.
- that the unit is connected to earth.
- that no tools or any other objects have been left in the units.
- that the filter is correctly fitted.
- that the condensate discharge outlet is correctly connected.
8.2 - SWITCH ON THE UNIT
• Using the isolation and protection device.
8.3 - START THE UNIT
• Using the indoor unit's control panel.
- Turn the switch to the required position.
- Set the temperature using the thermostat (see "User manual").
8.4 - EXTERNAL UNIT FAN
• The GRV 180 L and 220 L units are an all-season adjustable fan speed system standard equipment.
Fan motor speed varies according to the pressure of condensation and the outside temperature.
8 - STARTING
9 - MAINTENANCE INSTRUCTIONS
IMPORTANT
Before doing any work on the installation, make sure it is switched off and put out of bounds.
All operations must be carried out by personnel that are approved and qualified for this type of equipment.
• Air filter: Clean every 15 days. See "Operating Manual".
• External unit air exchanger: Cleaning recommended once a year.
• Electric connections: Once a year, check that the electric wires are well fastened to their terminals.
• Electric box: Dusting is recommended once a year.
IMPORTANT
Before doing any work on the installation, make sure it is switched off and put out of bounds.
All operations must be carried out by personnel that are approved and qualified for this type of equipment.
