User guide

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5-PLUMBING CONNECTION
Technical Dept. - All rights reserved - Reproduction is prohibited
SYSTEM FILLING
To ll the system, the stove can be equipped with an end piece (optional) with a check valve (D), for manual lling of the heating system
(if the optional is not installed, the lling tap on the main boiler will be used). During this operation, any air in the system is released from
the automatic vent valve located under the top.
To allow the valve to vent, it is recommended to loosen the grey cap by one turn and leave the red cap locked (see gure). The lling
pressure of the system WHEN COLD must be 1 bar. If during operation the system pressure drops (due to evaporation of gases dissolved
in the water) to values lower than the minimum ones indicated above, the user must use the lling tap to bring the pressure back up to
its initial pressure.
For proper operation of the stove WHEN HOT, the pressure in the boiler must be 1.5 bar.
To monitor system pressure, the end piece (optional) is equipped with a pressure gauge (M).
Upon completion of this lling operation, always close the tap.
DOMESTIC HOT WATER PRODUCTION KIT (Primula/Orchidea stoves only)
The PRIMULA and ORCHIDEA stoves are equipped with a complete kit for the production of domestic water made up of:
• Plate heat exchanger
• A 3-way diverter valve
• Flow switch
• Pipes and ttings for connection
The kit comes preassembled by the manufacturer and it is designed to heat domestic water directly from the home water supply system.
When hot water is required and the tap is turned, the internal water ow switch will send a signal to the diverter valve to channel the hot
water contained in the boiler to the plate heat exchanger. The temperature of the domestic water highly depends on the temperature of
the water inside the heating system. This can be calculated to a good degree of accuracy by taking 10°-15°C away from the value shown
on the stove control panel (which is the temperature of the water in the boiler).
If hot domestic water is needed while the stove is ‘Switch-O’ or in ‘ECOSTOP o’ mode, the stove will automatically and immediately
begin the start-up process to heat the water inside the boiler, and then the domestic hot water.
To ensure that the plate heat exchanger continues to work properly over time, one must be aware of the system water hardness to prevent
deposits from forming.
If the water in your home is very hard, you are advised to install a softening system upstream. You are advised to
service the plate exchanger annually to eliminate limescale and mineral salts sediments or to replace the heating
plates with new ones. These spare parts are supplied by the manufacturer.
VENT VALVE UNDER THE TOPEND PIECE WITH A FILLING TAP
(D) AND PRESSURE GAUGE (M)
(ACCESSORY)
DOMESTIC WATER PRODUCTION KIT