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General characteristics
1
Hydraulic unit: Sound pressure level at (x) m from the appliance,
1.5m off the ground, open fi eld directionality 2 / Outdoor unit : Sound
pressure level at (x) m from the device, halfway between the ground
and top of the outdoor unit, open fi eld directionality 2.
2
The sound power level is a laboratory measurement of the emitted
sound power. It does not correspond to a measurement of the
perceived sound power.
3
Refrigerant R32 as per NF EN 378.1 standard.
4
Filling with refrigerant R32 is done at the factory.
5
Taking into account a possible additional fi ll of refrigerant R32
(see "Additional fi lling", page 30).
6
The announced thermal and acoustic performances are measured
with 7,5m length refrigerant lines.
Alfea Extensa A.I. R32 / INSTALLATION / 2114 - EN
Model 356810
Rated heating performances (outdoor temp. / fl ow temp.)
Heat output
+7°C/+35°C - Underfl oor heating system kW 3,35 4.50 5.50 7.50 9.5
+7°C/+55 °C - Radiator kW 3,7 4.50 5.50 7.00 9
Power Input
+7°C/+35°C - Underfl oor heating system kW 0,68 0.949 1.18 1.69 2.11
+7°C/+55°C - Radiator kW 1,4 1.70 2.06 2.63 3.33
Coeffi cient of Performance (COP) (+7°C/+35°C) 4,89 4.74 4.65 4.43 4.5
Electrical Specifi cations
Electrical voltage (50 Hz) V 230 230 230 230 230
Maximum current for appliance A 13 13 13 18 19
Maximum current of the Heating system electrical backup (according option)
A 13 (26.1) 13 (26.1) 13 (26.1) 13 (26.1) 13 (26.1)
Power of the Electrical backup heater
(according option)
kW 3 (6 kW option available)
Circulation pump power consumption W 38 38 38 38 38
Maximum power consumed by the outdoor unit W 3260 3260 3260 4510 4760
DHW electrical backup power W 1500 1500 1500 1500 1500
Hydraulic Circuit
Maximum operating pressure heating / hot water tank MPa (bar)
0.3 (3) / 1
(10)
0.3 (3) / 1
(10)
0.3 (3) / 1
(10)
0.3 (3) / 1
(10)
0.3 (3) / 1
(10)
Flow rate of the hydraulic circuit for Δt=4°C (rated conditions) l/h 722 970 1185 1616 2047
Flow rate of the hydraulic circuit for Δt=8°C (rated conditions) l/h 399 485v 593 808 1024
Miscellaneous
Weight of outdoor unit Kg 39 39 39 42 62
Noise level at 5 m
1
(outdoor unit) dB (A) 35 35 35 38 40
Sound power level in accordance with EN 12102
2
(outdoor unit)
dB (A) 57 57 57 60 62
Weight of hydraulic unit (empty / full of water) Kg 145 / 359 145 / 359 145 / 359 145 / 359 145 / 359
Water capacity of the hydraulic unit / hot water tank l 24 / 190 24 / 190 24 / 190 24 / 190 24 / 190
Noise level at 1 m
1
(hydraulic unit) dB (A) 32 32 32 32 32
Sound power level in accordance with EN 12102
2
(hydraulic unit)
dB (A) 40 40 40 40 40
Heating system operating limits
Outdoor temperature min/max °C -20 / +35 -20 / +35 -20 / +35 -20 / +35 -20 / +35
Max. heating water fl ow temperature underfl oor heating °C 45 45 45 45 45
Max. heating water fl ow temperature low temperature radiator °C 52 52 52 52 52
Refrigeration circuit
Gas pipe diameters Inches 1/2 1/2 1/2 1/2 5/8
Liquid Piping Diameters Inches 1/4 1/4 1/4 1/4 3/8
Factory fi ll of refrigerant R32
3
g 970 970 970 1020 1630
Maximum operating pressure MPa (bar) 4.2 (42) 4.2 (42) 4.2 (42) 4.2 (42) 4.2 (42)
Minimum / Maximum length of pipes
4 / 6
m 3/15 3 / 15 3 / 15 3 / 15 3 / 20
Maximum length of pipes
5
/ Maximum level diff erence m 30 / 20 30 / 20 30 / 20 30 / 20 30 / 20
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