109
cod. 3541T620 - Rev. 05 - 04/2022
EN
DORA
90 LT - 120 LT
INSTRUCTIONS FOR:
USER
EXPERT TECHNICIAN /
MANUFACTURER'S TECHNICAL
ASSISTANCE
1. GENERAL INFORMATION ...................................110
1.1 RECIPIENTS OF THE MANUAL ............................... 110
1.2 GUIDE TO THE MANUAL ...........................................111
1.3 DECLARATION OF CONFORMITY ...........................111
1.4 COMPLIANCE WITH EUROPEAN REGULATIONS 112
1.5 DEVICE WARRANTY ................................................ 112
1.6 DISCLAIMER OF LIABILITY ...................................... 112
2. USE OF THE WATER HEATER ...........................113
2.1 BASIC SAFETY RULES ............................................ 113
2.2 MAINTENANCE BY THE USER ............................... 113
2.3 MAINTENANCE TO BE CARRIED OUT BY THE
EXPERT TECHNICIAN .............................................. 113
2.4 DESCRIPTION OF THE USER INTERFACE ........... 114
2.5 HOW TO TURN THE WATER HEATER ON AND OFF
AND UNLOCK THE KEYS ......................................... 115
2.6 SETTING THE CLOCK .............................................. 115
2.7 SETTING THE TIME BANDS .................................... 115
2.8 SETTING THE HOT WATER SET-POINT ................ 115
2.9 OPERATING MODE................................................... 116
2.10 ADDITIONAL FEATURES .......................................... 116
2.11 CONTROL OF THE DEVICE VIA APP ...................... 117
2.12 FAULTS/PROTECTION ............................................. 122
2.13 TROUBLESHOOTING ............................................... 123
SUMMARY
3. GENERAL INFORMATION ...................................124
3.1 PLATE DATA ............................................................... 124
3.2 IDENTIFICATION PLATES OF THE MAIN ELEMENTS
125
3.3 DESCRIPTION OF THE SYMBOLS USED IN THE
MANUAL AND ON THE PACKAGING ...................... 125
3.4 GLOSSARY OF TERMS ............................................ 126
3.5 PERSONAL PROTECTIVE EQUIPMENT ................ 126
3.6 NOISE ......................................................................... 126
INSTRUCTIONS FOR:
USER
EXPERT TECHNICIAN /
MANUFACTURER'S TECHNICAL
ASSISTANCE
3.7 VIBRATIONS .............................................................. 126
3.8 RESIDUAL RISKS ...................................................... 127
4. HANDLING AND TRANSPORT ...........................127
4.1 HANDLING OF PACKAGING .................................... 127
4.2 UNPACKING ............................................................... 127
4.3 RECEIPT..................................................................... 128
5. CONSTRUCTION CHARACTERISTICS ............128
5.1 COMPONENT IDENTIFICATION .............................. 128
5.2 DIMENSIONAL DATA ................................................. 129
5.3 TECHNICAL FEATURES ........................................... 131
6. INSTALLATION AND COMMISSIONING ...........132
6.1 STORAGE .................................................................. 132
6.2 LIMITS OF USE .......................................................... 132
6.3 OPERATING LIMITS ................................................. 132
6.4 PREPARATION OF THE INSTALLATION SITE ....... 133
6.5 WALL FIXING ............................................................. 134
6.6 AERAULIC CONNECTIONS ..................................... 134
6.7 HYDRAULIC CONNECTIONS .................................. 135
6.8 ELECTRICAL CONNECTIONS ................................ 137
6.9 ELECTRICAL DIAGRAM ........................................... 139
6.10 COMMISSIONING ..................................................... 140
7. REPLACEMENTS ..................................................145
7.1 POWER BOARD FUSE REPLACEMENT ................ 145
7.2 REPLACEMENT OF ELECTRIC RESISTOR SAFETY
THERMOSTAT ........................................................... 145
7.3 CHECK/REPLACEMENT OF THE SACRIFICIAL ANODE
146
7.4 EMPTYING THE BOILER ......................................... 146
7.5 REPLACEMENT OF THE POWER CORD .............. 147
8. REQUIREMENTS FOR THE OPERATION,
SERVICE AND INSTALLATION OF APPLIANCES
THAT USE FLAMMABLE REFRIGERANT GASES
ACCORDING TO ANNEX DD OF EN 60335-2-40 147
8.1 GENERAL WARNINGS ............................................. 147
8.2 FIRE RISK .................................................................. 147
8.3 MAINTENANCE ......................................................... 148
9. DISPOSAL...............................................................149
10. PRODUCT SHEET .................................................150
11. NOTES ON RADIO DEVICES AND APPS .........151