For pumps over 3 Hp/20 amps, or for 3 phase pumps
1. Pump voltage must be carried by an external contactor rated for the pump load. Coil
voltage can be either 120 or 240 volts, however, the coil voltage must match the out-
put voltage of the SR500. 120 VOLT INSTALLATIONS – THE NEUTRAL BUSS
MUST BE GROUNDED TO THE GROUND BUSS IN THE SUPPLY PANEL.
2. Wire the SR500 to a dedicated circuit, 120 or 240 volts, power input to Line 1
and Line 2 (#10 and # 12) and power out to coil from Load 1 and Load 2 (#9 and
#11) 120 VOLT INSTALLATIONS MUST USE BOTH LOADS CONNECTED
TO BOTH TERMINALS OF THE COIL.
Refer to Drawing 3
Low or
No voltage terminals.
1. Remote SW input (#1 and #2) are dry contacts for remotely controlling the startup of
the SR500 in Remote Mode, such as when used with a remote control system (Jandy
or ComPool) Open = pump off, Closed = pump on
2. Heater Delay circuit – (#5 and #6) or Fireman’s switch. Wire to the delay or safety
circuit of your heater to shut it down 15 minutes before the pump. HEATER DELAY
MUST BE ENABLED IN SERVICE MODE DURING CALIBRATION.
3. Alarm – dry contact that closes while the SR500 is in an alarm state or in maintenance
mode. Use in conjunction with the 24 volt output for remote alarms.
4. 24 volt alarm output (#7 and #8) provides a 24 volt output. Use to power 24 volt
remote alarms.
Getting Star
ted
BEFORE TURNING ON THE POWER TO THE UNIT, VERIFY YOUR PUMP OPER-
ATING VOLTAGE (120 OR 240 VOLTS) AND SET THE VOLTAGE SELECTOR
SWITCH ON THE RIGHT SIDE OF THE SR500 ACCORDINGLY. UNITS DAM-
AGED BY IMPROPER POWER INPUT WILL NOT BE COVERED BY WARRANTY!
1. When the power is applied, the SR500 will perform a self-check and verify the
stability of the AC input. If incoming voltage is correct and the SR500 is being powered
up for the first time and has no reference values in it’s memory, you will see the
following message:
SET UP REQUIRED
REFER TO MANUAL!
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