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10 - MAINTENANCE INSTRUCTIONS
• Air filter:
- We recommend that the air filter be cleaned every 2 weeks by
compressed air or water.
See the "User's Manual".
- Remove the filter by pulling the cartridge as shown in the
diagram.
• 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 boxes:
- Dusting is recommended once a year.
• Electric heating safety
- The heating kit is equipped with automatic resetting safety
thermostats (located on the resistors) and a manual reset safety
device.
- The manual reset is used in case of nonexistent or weak air flow.
Possible causes:
- faulty fan motor,
- turbines blocked or jammed,
- clogged filter,
- heat exchanger excessively dirty,
- air intake, outlet or ducts blocked.
- Correct the malfunction then reset the safety thermostat located
under the electrical box by removing the cap and pressing the
button as shown.
1
2
Resetting
button
IMPORTANT
Before doing any work on the installation, make sure it is switched off and put out of bounds.
Pay particular attention to the heater kit which is powered separately.
All operations must be carried out by personnel that are approved and qualified for this type of equipment.
Cap
9.2 - SWITCH ON THE UNIT
• Using the isolation and protection device.
9.3 - START THE UNIT
• Using the indoor unit's control panel (see paragraph 8.4 for reversible models).
9.4 - VENTILATION OF OUTDOOR UNIT
• All all-season usage, the GRV 180 L is equipped with a condensation pressure control system as standard
.
Ventilation motor speed varies according to the outside air temperature and the temperature of the outdoor exchanger
.
