Nortek Reznor 120, Installation & Servicing Manual

Page: 23 / 68

Model 235 300 375
Heat Output (max)
kW/hr
Btu/hr 247.22
843,514 286.9
979,000 381
1,300,000
Heat Input (Gross)
kW/hr
Btu/hr 287
979,200 360
1,230,000 483.5
1,650,000
Heat Input (Nett)
kW/hr
Btu/hr 269.16
918,374 339.62
1,160,377 435.58
1,486,200
Nett Effi ciency % 91.9 91.11 90.1
Burner Type
Riello RL34.1 RL34.1 RL44
Oil Connection BSP
3/8
3/8 3/8
Fuel Consumption 35s
Imp gall/
hr litre/hr 5.9
26.7 7.5
34.1 10.1
45.6
Burner Pressure 35s
Psi
Bar 170
11.6 180
12.5 170
11.6
Nozzle Size 35s
3.0 & 2.5 - 60°B 3.75 & 2.25 - 60°B 2 x 4.5 - 60°B
Fuel Consumption 28s
Imp gall/
hr litre/hr 6.25
28.4 6.74
30.66
TBA
Burner Pressure 28s
Psi
Bar 130
8.9 145
10.0 150
10.3
Nozzle Size 28s
4.0 & 2.5 - 60°S 4.5 & 3.0 - 60°S 6.0 x 4.0 - 60°S
Head Setting 0 fl ue resistance Number 6 6 5
Air Setting 0 fl ue resistance
Number 3.6 6 45° 80°
Available Outlet Pressure
Pascals
Ins WG 125
0.5 175
0.7 250
1
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
111.2 48
118.4 45
113
Combustion Chamber mbar 0.89 1.21 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
224 237 285