A C O R N C O N T R O L S /
A C O R N C O N T R O LVA LV E S . C O M
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AFTER POWER FAILURE
During a power failure, the MV17 mixing valve will continue to thermostatically control, in accordance
with ASSE 1017, to the setpoint it was set to prior to the power loss. Upon return of power and once
your BASyC™ software has re-booted, all your functionality will return. The Actuator can be manually
operated during a power failure using the hex key provided by Acorn with every BASyC™ system.
AFTER TEMPERATURE SENSOR LOSS
During a loss of the outlet temperature sensor, the MV17 mixing valve will continue to thermostatically
control, in accordance with ASSE 1017, to the setpoint it was set to prior to the power loss. You
will be unable to change the setpoint until the outlet temperature sensor has been replaced. Upon
replacement of the outlet sensor, all functionality will return.
OPERATING ACTUATOR MANUALLY
To operate the Acorn BASyC™ electronic actuator manually:
1) Make sure there is flow through the valve by opening
fixtures or using the drain valve, if provided, on your
mixing valve assembly.
2) Insert 4 mm hex key provided by Acorn and hold button
on actuator as shown:
3)
DO NOT RELEASE THE BUTTON UNTIL YOU ARE
FINISHED MANUALLY ADJUSTING THE SETPOINT.
4) Rotate the hex key clockwise to lower the setpoint on
the mixing valve, counter-clockwise to increase it. Use
the mechanical temperature gauge supplied with all
BASyC™ systems to verify you have adjusted to the
proper temperature.
5) Make small adjustments and give the mixing valve
1-2 minutes to respond.
6) Release the button and remove the hex key when you
have reached the desired setpoint.
7) If a manual adjustment is made when there is no control
signal to the actuator, due to lack of power or an outlet
sensor signal, the control signal will determine the
setpoint when it returns.
