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Prelim Draft - Brand Neutral
BACNET IP/MSTP VAV - INSTALLATION INSTRUCTION
Supply voltage: 24 Vac (20 to 30 Vac) 50/60 Hz
Important: Where multiple devices are powered from
a single transformer, the same side of the transformer
secondary must be connected to the same power input
terminal in each device.
Figure 9. Power wiring
O
I
DO NOT SWITCH ON POWER
!
Line
Voltage
GND
100 VA max.
24 Vac
For UL rating the
transformer must
be class 2 rated.
*If the power supply
is not current-limited,
an external 4A fuse
*
This equipment
must be earthed
(grounded)
3
must be fitted.
or circuit breaker
3 2 1
!
24
VA
C
G
N
D
EG
N
D