Trox Technik Compact XM0, Installation And Commissioning Instructions

Page: 36 / 45

Example 2:
Calculation of the setpoint value voltage (Y) for
desired volume flow rate
Terminal unit nominal volume flow
rate q
vnom
- 2293 m³/h
Set q
vmin
- 500 m³/h
Set q
vmax
- 2000 m³/h
Characteristic setting - 0 – 10 V
Desired volume flow rate q
vset
- 1500 m³/h
q – q
q – q
Y =
10 V
vsoll
( )
vmin
vmax
vmin
Billing solution:
Y = 1500 m³/h – 500 m³/h / (2000 m³/h – 500 m³/h /
10 V)
Y = 0.66 V
Example 3:
Calculation of the setpoint value voltage (Y) for
desired volume flow rate
Terminal unit nominal volume flow
rate q
vnom
- 1513 m³/h
Set q
vmin
- 250 m³/h
Set q
vmax
- 800 m³/h
Characteristic setting - 2 – 10 V
Desired volume flow rate q
vset
- 650 m³/h
q – q
q – q
Y
= + 2V
(10V – 2V)
vsoll vmin
vmin vmax
)
)
Billing solution:
Y = 650 m³/h – 250 m³/h / (800 m³/h – 250 m³/h /
(10 V– 2 V)) + 2 V
Y = 7.81 V
Troubleshooting
Further diagnostic options > Sample calculations
Control component Compact XM0 • XS0 for VAV terminal unit TVE 36