WattMaster VAV - Manual (Page 56)

Component & System Wiring 56
Over Voltage Board Wiring
C O N T R O L S
FILENAME
DATE:
DESCRIPTION: PAGE
DRAWN BY:
1
JOB NAME
03/24/04
VAV-OE268-OVBoard.cdr
OE-268 Over Voltage Board
Barry Light
HV POWER BD.
YS101750
REV 1.0
C2
+
+
R3
D1
U1
R2 AC_IN GND
TB1
INPUT
24-32VAC C3
D2
R1
+V GND
TB2
POWER
OUTPUT
This output is DC voltage. Our
controllers will accept DC voltage
if the voltage is above 28 VDC.
Note:
NOTE: This board goes between the supply transformers
low voltage output and the controllers low voltage input.
WattMaster Controllers do not like to see more than
28 VAC on their input side. When the line voltage to the
transformer is too high, generally the output side of the
transformer (low voltage) is too high, thus requiring this
Over Voltage Board.
To the 24 VAC input side
of WattMaster Controller
TRANSFORMER
LINE VOLTAGE
OE-268 Over Voltage Board
This board is designed to power one
controller with expansion boards only.
Warning