Riello NXHM - Operation

79
ENGLISH
8.4.3 Application C
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12.1
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FHL1 FHL2
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FHLn
12.2
12.3
12
13
14
15
16
4
2
3
11
67
8.1
8.2
8
10
9
18
AHS
1
1.5
1.4
1.2
1.3
1.7
1.6
1.1
Code Assembly unit
1 Outdoor unit
1.1 Manometer
1.2 Pressure relief valve
1.3 Expansion vessel
1.4 Plate heat exchanger
1.5 Air purge valve
1.6 Flow switch
1.7 PUMP_I: Circulation pump inside the unit
2 <VKDSH¿OWHU
3 6WRSYDOYH¿HOGVXSSO\
4 Wired controller
6 'UDLQYDOYH¿HOGVXSSO\
7 )LOOYDOYH¿HOGVXSSO\
8 %DODQFHWDQN¿HOGVXSSO\
8.1 Air purge valve
8.2 Drain valve
9 ([SDQVLRQYHVVHO¿HOGVXSSO\
10 PUMP_ORXWVLGHFLUFXODWLRQSXPS¿HOGVXSSO\
11 &ROOHFWRUGLVWULEXWRU¿HOGVXSSO\
12 Domestic hot water tank ¿HOGVXSSO\
12.1 Air purge valve
12.2 Heat exchanger coil
12.3 Booster heater
13 T5: DHW tank temp. sensor
14 Hot water tap¿HOGVXSSO\
15 PUMP_D: DHW pump¿HOGVXSSO\
16 One way valve¿HOGVXSSO\
18 SV1: 3-way valve¿HOGVXSSO\
22 T1: Outlet water temperature sensor¿HOGVXSSO\
FHL
1… n
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NOTE
The volume of balance tank (8) should be greater than 40L. The drain valve (6) should be installed at the lowest positon of the system. Tempera-
ture sensor T1 must be installed at the outlet of AHS, and connect to the corresponding port in the main control board of hydraulic module(refer
to 9.3.1 Main control board of hydraulic module), PUMP_O (10) should be controlled by outdoor unit and connect to corresponding port in the
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Operation
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HEATING SOURCE).
 As the outdoor temperature is measured via the outdoor unit air thermistor, make sure to install the outdoor unit in the shade, so that
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 Frequent switching can cause corrosion of the boiler at an early stage. Contact the boiler manufacturer.
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weather dependent operation is active, the water temperature is determined automatically depending on the outdoor temperature.
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NOTE
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b
CAUTION
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above 60°C.
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The supplier will not be held liable for any damage resulting from failure to observe this rule.