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To connect a safety flow switch for the DHW recirculation circuit
to the equipment, proceed as follows (reserved only for qualified
technical personnel):
• Disconnect the power to the equipment.
• Remove the top cover of the equipment and then the power
board cover.
• Disconnect the "jumper" (bridge 2) from connector CN7 of the
power board, then cut the conductor forming the bridge in the
middle and connect a suitable terminal.
• Then connect a normally-closed (N.C.) type flow switch and
connect everything to CN7.
• Reassemble all the plastics and make sure the equipment is
correctly installed before powering it.
If, instead, a normally-open (N.O.) type flow switch is used, it
is necessary to set the parameter P15 = 1 (see par."8.1 Query,
editing operating parameters" on page 108).
98
EN
7. DESCRIPTION OF USER INTERFACE AND OPERATION OF
EQUIPMENT
Description
"On/Off" button for switching on, putting the product in
standby mode, unlocking buttons, saving changes
"Set" button to edit the parameter value, confirm;
"Increase" button to increase the set-point value,
parameter or password
"Decrease" button to decrease the set-point value,
CN7
parameter or password
Heat pump operation (ECO mode)
Heating element operation (ELECTRIC mode)
AUTOMATIC mode
BOOST mode (symbols flash)
Button lock active
Defrost
Frost protection
Anti-legionella cycle
Holiday mode;
Operation with time bands
Clock setting (symbol flashes)
Connected with Wi-Fi
Photovoltaic mode
(with symbol flashing the supplement is not active)
(not available for these models)
Fault or protection active
Off-Peak mode (with symbol flashing the equipment
remains on standby)
The user interface of this water heater model consists of four
capacitive buttons, and a LED display.
cod. 3541T630 - Rev. 04 - 12/2021
DORA
200 HT - 260 HT
fig. 23
Symbol
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