AFA4000/E
VAV Airflow Controller / p.175
9.4
Fail safe damper operation
The Econ power supply is fitted with a super-cap quick-charge fail-safe feature that opens the
fume cupboard damper actuator in the event of mains power loss (Econ output 1 only). This
feature allows non fail-safe actuators to be fitted to the fume cupboard damper.
Specification
Ratings and requirement for fail-safe feature
Actuator voltage
22-28 Vdc
Actuator torque
Max 4 Nm
Actuator power consumption whilst
driving
Max 13W
Butterfly damper max pressure drop
across damper
1000 Pa
Multivane damper max pressure drop
across damper
500 Pa
Fail-safe operation
Fail-safe charge time
Max 30 seconds from fully discharged state
Fail-safe operation time
Max 5 seconds @ 0.25 W 24 Vdc for 4 Nm actuator
Charging indication
LED 2 (Green) Dim
Fail-safe active
LED 2 (Green) Bright
Note: Recommended damper actuator = Belimo LMQ24A-SR-TEL
Содержание AFA4000/E
Страница 1: ...AFA4000 E VAV Airflow Controller Installation and operating manual Issue 2...
Страница 57: ...AFA4000 E VAV Airflow Controller p 57 Figure 22 AFA4000 E inverter control connections...
Страница 58: ...AFA4000 E VAV Airflow Controller p 58 Figure 23 AFA4000 E damper control connections...
Страница 59: ...AFA4000 E VAV Airflow Controller p 59 Figure 24 AFA4000 E typical connection diagram...
Страница 60: ...AFA4000 E VAV Airflow Controller p 60 Figure 25 AFA4000 E AS typical connection diagram...
Страница 62: ...AFA4000 E VAV Airflow Controller p 62 Figure 27 SM7 airflow sensor dimensions...
Страница 71: ...AFA4000 E VAV Airflow Controller p 71 Figure 34 Side views of a rack and pinion drive typical installation...
Страница 96: ...AFA4000 E VAV Airflow Controller p 96 6 9 Auto Sash System Control Box general wiring diagram...
Страница 158: ...AFA4000 E VAV Airflow Controller p 158...
Страница 182: ...AFA4000 E VAV Airflow Controller p 182 Figure 79 Connection diagram with RS232 485 converter...