set operating vacuum window. Usually caused by either the filter becoming dirty over time
and needing to be backwashed (decreases running vacuum) or conversely the unit was
installed on a dirty filter which was later backwashed (increases running vacuum) or bas-
kets need to be emptied (increases running vacuum)
Virtually any changes to the system such as installing a new motor or pump or
adding/removing plumbing will alter the running vacuum. If any changes have been made
to the system that have had an effect on the hydraulic dynamics (In general, the addition or
removal of anything pool water flows through) the unit must be recalibrated to re-establish
a correct vacuum value in the memory. Run the “Prime Pump” function again in Service
Mode, insuring the pump is running at full prime and filter pressure and flow rates are nor-
mal before pressing “yes” to stop and save.
System Err
or 16 – Delta P too low or suction alarm @ 6” lower than running vacuum
Should the installer leave the timer in the pump circuit and try to operate the SR500
in Continuous mode instead of Remote mode, every time the timer turns off the pump
the SR500 will assume the pump has lost prime. It will enter an alarm state after 2
minutes. The circuit will have to be re-wired:
1 The timer must be removed from the pump circuit and the circuit made complete
at that point. Incoming power should go from the breaker to the SR500, power out
of the SR500 should go straight to the pump or contactor coil.
2 The timer will need to be rewired directly to the Remote Switch Input on the low
voltage terminal strip. (#1 and #2) Wire the two leads from the back of the timer
DIRECTLY to remote sw in. This is a SEPARATE DRY-CONTACT ONLY cir-
cuit! No voltage is required to remotely start and stop the pump in Remote
Mode! DO NOT apply any voltage to the Remote Switch Input, you will cause
irreparable damage to the SR500!
System Err
or E9 – Hold “Set” for 5 seconds to enter Service Mode. Usually caused
by incorrect initialization procedure, re-initialize and re-calibrate unit. Please set the
date and time even if you are operating in continuous mode.
Power
Fault BF – “AC Line Too Low” possible causes include insufficient wire
gauge, excessive wire length, additional loads on circuit, excessive incoming imped-
ance, excessive pump load.
41
To Next Page