BENSON 30 - Page 20

Doc No. 20-45-159 Page 20 of 60
Model 235 300 375
Heat Output (max)
kW/hr
Btu/hr
236.8
807,961
283.67
967,900
380.5
1,298,300
Heat Input (Gross)
kW/hr
Btu/hr
285.7
974,808
345.88
1,180,150
463.6
1,581,803
Heat Input (Nett)
kW/hr
Btu/hr
257.4
878,244
311.60
1,063,198
417.3
1,423,827
Nett Eciency
% 92.0 91.08 91.1
Burner Type
Riello RS34.1 RS34.1 RS50
Gas Connection
RC1¼ RC1¼ RC2
Fuel Consumption Nat Gas
m³/hr
ft³/hr
27.2
960
33.0
1168
45.8
1617
Burner Pressure Nat Gas
mbar
Ins WG
7.4
2.9
11. 5
4.62
tba
Min Gas Inlet Pressure Nat Gas
mbar 17.5 17. 5 17.5
Head Setting Nat Gas (no ue)
Number 2.5 4 tba
Air Setting Nat Gas (no ue)
Number 2.7 3.5 tba
Fuel Consumption LPG
m³/hr
ft³/hr
l/h
10.4
368
39.3
14.36
516
54.2
19.0
671
71.1
Burner Pressure LPG
mbar
Ins WG
18.0
7.2
tba tba
Min Gas Inlet Pressure LPG
mbar 37.0 37.0 37.0
Head Setting LPG (no ue)
Number 2.5 tba tba
Air Setting LPG (no ue)
Number 2.7 tba tba
Central Air Adjustment
Number 3.4 5.0 n/a
Available Outlet Pressure
Pascals
Ins WG
125
0.5
175
0.7
250
1.0
Nozzle Discharge Velocity
m/sec
ft/min
6.55
1285
7.39
1445
8.49
1665
Air Throw (approx)
mtrs
ft
21.7
70
24.8
80
31.1
100
Air Delivery
m³/sec
ft³/min
4.32
9150
4.86
10,300
6.88
14,680
Temp Rise Through Heater
°C
°F
44.2
79
48
86
45
81
Combustion Chamber
mbar 0.67 0.92 0.9
Sound Level
dba 79 81 81
Flue Resistance
Min mbar
Max mbar
-0.4
1.6
-0.4
1.6
-0.4
1.6
Flue Diameter
mm 225 225 250
Electrical Supply
Standard 415/3/50 415/3/50 415/3/50
Rated Input
kW 4.0 5.5 7.5
Fused Isolator Size
Amps 32 32 64
Running Current
Amps 8.4 11 24
Electrical Supply
Optional n/a n/a n/a
Rated Input
kW n/a n/a n/a
Fused Isolator Size
Amps n/a n/a n/a
Running Current
Amps n/a n/a n/a
Weight
kg 630 646 1090
Nozzle Amount
no. 4 4 4
Nozzle top Plate Outlet Dia
Ø mm 380 380 471
Flue Temperature (Gross)
@ 20°C
Ambient
205 200 233