34
912.807.1 - GB
INSTALLATION AND OPERATING MANUAL
22. OPERATING PROCEDURE
To start the appliance correctly, proceed as follows:
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Following a heat demand from the ambient thermostat, the water from the centralised system begins to circulate in the
heating elements of the zone controlled by the user module.
For dual-zone models (
RA2Z
) the heating bands of two zones can be managed separately by the relative ambient ther-
mostats (or with the
ECO CRONO
climate adjustor).
The user module heats the water in the storage boiler to the temperature set by the relative
DHW potentiometer. TS
temperature range: 35 ÷ 65°C
(see § 17).
Whenever the temperature of the water in the storage boiler falls below the set value, the module serves the storage boiler
interrupting operation in the heating mode (DHW priority).
Different adjustments of domestic hot water temperature can be made directly using the
ECO CRONO
climate adjuster.
22.1 STARTING
Adjust the ambient thermostat / heating programmer /
ECO CRONO
climate adjuster to disable the heating function
(lower the set ambient temperature or disable heating). The domestic hot water function and the frost protection device
remain active.
22.2 PARTIAL SHUT-DOWN
Disconnect the appliance from the power supply by turning the luminous switch and the two-pole switch.
22.3 TOTAL SHUT-DOWN
