Filter
Top Products
Page 9 of 16 STRATUM™ Model VR1000 P/N: ISVR1000 Rev: M
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908.351.5400 www.haywardpool.com
OPERATIONS
Normal operational mode monitors pool conditions for proper operation.
The system operates in four basic states during normal pool monitoring.
STARTUP – PULSING
The vacuum solenoid valve is opened and closed several times to ‘soft start’ the system at startup time to warn
swimmers that the pump is running. A self-test then occurs to verify that the sensor / solenoid subsystem is
functioning properly. During this time a High Vacuum setting provides protection. As the pump starts priming
the system is providing protection for swimmers. STABILIZING is entered if the system experiences no errors.
With the pump off the system will take an initial voltage reading. This reading will be stored to allow low
voltage cut off of the pump. In no case will the low voltage be allowed to drop below 188VAC or 100VAC
(factory calibrated) depending on initial reading. The low voltage will turn the pump off until normal voltage is
restored.
STABILIZING
The pump is running and the vacuum sensor is monitoring the pool pump inlet vacuum. The High Vacuum
setting continues to provide protection. The pump will become fully primed and the vacuum should stabilize.
The operating vacuum will then be determined. Detection of vacuum being out of window from the calibrated
value or any other errors will result in entering the Vacuum Anomaly Detected state. The following state is
entered if the system operates properly.
MONITORING
Monitoring is when the pump is running and a stable vacuum has been established. Vacuum measurements are
taken at about 1000 samples per second, yielding a filtered vacuum value about every hundredth of a second.
The filtered vacuum values are compared to the established normal vacuum value. When this filtered vacuum
value is outside an established window Vacuum Anomaly Detected state is entered.
Continuous operation in Monitoring is periodically interrupted by a “self-test” where a change in vacuum must
be detected. If any problem is detected during “self-test,” the Vacuum Anomaly Detected state is entered.
Green light will display with power to the system. (If both the Yellow and Green light are on, the system has
turned off the display due to high temperatures internally in the box. The system is still in the operation.)
VACUUM ANOMALY DETECTED
The pump(s) and the vacuum solenoid valve are turned off within 0.1 seconds to help reduce the risk of certain
types of entrapment. The system may also reduce equipment damage due to a cracked pipe or low pool water
levels. Startup with Pulsing state will be entered after a short delay and the stabilization process is repeated
allowing the system to adapt to changing pool conditions, such as gradual obstruction of the filter. Three
occurrences of certain errors will cause the system to shut down the pump(s), sound the alarm(s) and update the
LCD display to indicate the reason. The audible alarm(s) may be silenced through following instructions on the
display or through the remote “stop” switch(s); or else the audible alarm(s) will be silenced automatically after
10 minutes. However manual intervention, including responding to certain questions via the LCD display and
function pushbuttons, is required in order to restart the system.