Daikin Altherma EHFH03S18D 3V Series Installer's Reference Manual page 20

3 | Specific installer safety instructions
Installer reference guide
20
Maintenance and service (see
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
▪
Before carrying out any maintenance or repair activity, ALWAYS switch off the
circuit breaker on the supply panel, remove the fuses or open the protection
devices of the unit.
▪
Do NOT touch live parts for 10 minutes after the power supply is turned off
because of high voltage risk.
▪
Please note that some sections of the electric component box are hot.
▪
Make sure you do NOT touch a conductive section.
▪
Do NOT rinse the unit. This may cause electric shocks or fire.
CAUTION
Water coming out of the valve may be very hot.
WARNING
If the internal wiring is damaged, it has to be replaced by the manufacturer, its
service agent or similarly qualified persons.
DANGER: RISK OF BURNING/SCALDING
The water in the tank can be very hot.
CAUTION
Make sure to open the valve (if equipped) towards the expansion vessel, otherwise
the overpressure will be generated.
"14 Troubleshooting" [
Troubleshooting (see
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
WARNING
▪
When carrying out an inspection on the switch box of the unit, ALWAYS make
sure that the unit is disconnected from the mains. Turn off the respective circuit
breaker.
▪
When a safety device was activated, stop the unit and find out why the safety
device was activated before resetting it. NEVER shunt safety devices or change
their values to a value other than the factory default setting. If you are unable to
find the cause of the problem, call your dealer.
"13 Maintenance and service" [
4 181])
4 174])
ERLA03D + EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09