Troubleshooting; Environmental Information - HTW -ATS-O-300VAX Manuel De L'utilisateur Et D'installation

Check the power supply and the electrical system, make sure the electrical components are

good, and the wiring is well. If there is a damaged part or a strange smell, please replace it in
time.
If the heat pump is not used for a long time, please drain out all the water from the unit and seal

the unit to keep it good. Please drain the water from the lowest point of the boiler to avoid
freezing in winter. Water recharge and full inspection on the heat pump is required before it is
restarted.
Do not turn the power 'OFF' when you use the unit continuously, or the water in the pipe will

freeze and split the pipe.
Keep the unit clean by means of soft damp cloth, no maintenance is required by the operator.

It is recommended to clean the tank and e-heater regularly to keep an efficient performance.

Generally no maintenance is required by the operator, except below: It is recommended to set

a lower temperature to decrease the heat release, prevent scale and save energy if the outlet
water is sufficient. Keep the unit clean by means of soft damp cloth.

TROUBLESHOOTING

This section provides useful information for diagnosing and correcting certain troubles which may
occur. Before starting the troubleshooting procedure, carry out a thorough visual inspection of the
unit and look for obvious defects such as loose connections or defective wiring.
Before contacting your local dealer, read this chapter carefully, it will save you time and money.
WHEN CARRYING OUT AN INSPECTION ON THE SWITCH BOX OF THE UNIT, ALWAYS
MAKE SURE THAT THE MAIN SWITCH OF THE UNIT IS SWITCHED 'OFF'.
The guidelines below might help to solve your problem. If you cannot solve the problem, consult
your installer/local dealer.
No image on the controller (blank display). Check if the main power is still connected.

One of the error codes appears, consult your local dealer.

The scheduled timer does work but the programmed actions are executed at the wrong time

(e.g. 1 hour too late or too early). Check if the clock and the day of the week are set correctly,
adjust if necessary.

ENVIRONMENTAL INFORMATION

This equipment contains fluorinated greenhouse gases covered by the Kyoto Protocol. It should
only be serviced or dismantled by professional trained personnel.
This equipment contains R134a refrigerant in the amount as stated in the specification. Do not vent
R134a into the atmosphere: R134a, is a fluorinated greenhouse gas with a Global Warming
Potential (GWP) = 1300.
64