Roberts Gorden HF 30 v4 Installation, Commissioning, Service & User Instructions page 28

CABINET HEATER
Fig 2.14 Air Flow v Static Pressure & Motor Current - HF50 v2
Graph
Graph of air flow v staic pressure and current for model HF50 v2with
HF8
450
400
350
300
250
200
150
100
50
0
2.4 2.8 3.2
3
Air Flow m /sec
Air Flow v Static pressure :
Fig 2.15 Air Flow v Static Pressure & Motor Current - HF50 v3
Graph
HF9
500
450
400
350
300
250
200
150
100
50
0
2.6 3.0 3.4
3
Air Flow m /sec
Air Flow v Static Pressure
5.5kW motor with 112mm pulley. Fan pulley 180mm
3.6 4.0 4.4 4.8
Graph of Air Flow v Static Pressure and Current.
Model HF50 v3 with 7.5kW motor and 132mm pulley.
Fan pulley 200mm.
3.8 4.2 4.6 5.0 5.4
5.2 5.6 6.0 6.4
Air Flow v Motor Current
5.8 6.2 6.6 7.0 7.4
Air Flow v Motor Current
11.5
10.5
9.5
8.5
7.5
18
17
16
15
14
13
12
11
10
9