Biasi RIVA PLUS HE 24S ERP, User Manual And Installation Instructions

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INST
ALLA
TION
TECHNICAL INFORMATION
4.3 Technical data mod. Riva Plus
HE 24S ERP
Heat input
Nominal net
(A)
(ch - dhw)
kW 25,0
BTU/h 85304
Nominal gross
(B)
(ch - dhw)
kW 27,8
BTU/h 94687
Minimun net
(A)
ch - dhw
kW 7,5
BTU/h 25591
Minimun gross
(B)
ch - dhw
kW 8,3
BTU/h 28406
Useful output
Maximun (ch - dhw)
kW 24,4
BTU/h 83256
Minimun (ch - dhw)
kW 7,3
BTU/h 24909
Maximun condensing (ch - dhw)
kW 26,3
BTU/h 89739
Minimun condensing (ch - dhw)
kW 7,8
BTU/h 26615
Central heating
Min/Max flow temperature settings* °C 50-85
Minimum return temperature °C 40
Maximum pressure
kPa 250
bar 2,5
Minimum pressure
kPa 30
bar 0,3
Available head (in 1000 l/h)
kPa 25
bar 0,25
Seasonal efficiency G20 % 88,1
Seasonal effciency G30 G31
(C)
% 89,1
* to the minimum useful output
Gas supply pressures
Gas
Pa mbar
Natural G20
Nom
2000 20
Min 1700 17
Max 2500 25
Butane G30
Nom 2900 29
Min 2000 20
Max 3500 35
Propane G31
Nom 3700 37
Min
2500 25
Max
4500 45
1 mbar approximately equals 10 mm H
2
O
Max. gas pressures at the burner
Natural G20
Pa 1340
mbar 13,4
Butane G30
Pa 2760
mbar 27,6
Propane G31
Pa 3550
mbar 35,5
Min. gas pressures at the burner
Natural G20
Pa 140
mbar 1,4
Butane G30
Pa 280
mbar 2,8
Propane G31
Pa 350
mbar 3,5
Ignition gas pressures at the burner
Natural G20
Pa 850
mbar 8,5
Butane G30
Pa 2110
mbar 21,1
Propane G31
Pa 2700
mbar 27,0
1 mbar approximately equals 10 mm H
2
O