MODEL 554300 Dual ORP/pH Digital Controller pH ORP FLOW SWITCH pH OUTPUT ORP1 OUTPUT ORP2 OUTPUT POWER Operating Manual Rola-Chem Digital Controller PN 554331 6/01/2012 Page: 1 of 20
QUICK START REFERENCE Use this section for reference - please read all safety instructions and appropriate manual sections for installation and operation instructions. • Do NOT add chemicals to feeders until all start-up operations are completed. • Manually adjust and balance pool/spa to acceptable levels and verify using DPD test kit prior to start-up. Automation should be used to maintain chemical levels, not to balance a pool/spa that is out of acceptable chemical ranges.
Table of Contents Section title Page Quick Start Reference 2 1.0 Safety Instructions 4 2.0 Description and Specifications 2.1 General Description 2.2 Specifications 2.3 Description of controls 4 6 7 3.0 Installation 3.1 Locating the controller 3.2 Mechanical installation 3.3 Power access panel 3.3.1 Dip switches 3.3.2 Fuses 3.3.3 Flow switch 10 10 11 11 11 11 4.0 Operation 4.1 Startup 4.2 PH settings 4.3 ORP settings 4.4 Operating mode 12 12 13 13 5.0 Troubleshooting 13 6.0 Warranty 15 7.
1.0 Safety Instruction A- B- C- D- E- F- G- H- WARNING: Do not shut down circulating and control system immediately after using pool, spa or hot tub. Systems must operate until water chemistry is stable. Systems must be restarted before water chemistry is out of NSPI recommended ranges or water chemistry must be manually corrected. WARNING: Removing power from circulating pump must also remove power from the controller. Provide a properly located outlet controlled by the circulating pump circuit.
The pH display range is 6.8 to 8.2 with a .1 unit resolution. The pH set point is adjustable from 7.0 to 8.0 in .1 pH steps, with a factory default set point of 7.4 pH. During a pH feed cycle, the pH feed lamp will blink when pH chemicals are being feed and illuminate continuously during the feed delay portion of the feed cycle. The pH Alert lamp will illuminate when the pH reading is higher or lower than the high and low pH Alert set points and prevent the feeding of pH chemicals.
2.2 Specifications Parameter pH: ORP: ORP1: ORP1: Display 6.8 to 8.4 0 to 995 mV (5 mv increments) (5 mv increments) Control 7.0 to 8.0 Factory Default . 7.4 400 mV to 900 mV 650mV 400 mV to 890 mV 640mV Input Power 120 Volts AC, 50/60 HZ, 3 wire grounded power cord. Combined load not to exceed 15 amps.
2.3 Description of Controls 1. FLOW LAMP Illuminates bright when water flow is indicated. Also indicates that power is on. 2. pH/ORP ALERT LAMPS Illuminates red when the Hi or Low Alert levels are reached. 3. CHEMICAL FEED LAMPS pH FEED lamp flashes while feeding chemical and illuminates steady during feed delay. ORP1 & ORP2 FEED lamp flashes while feeding chemical and illuminates steady during feed delay. pH ORP FLOW SWITCH pH OUTPUT ORP1 OUTPUT ORP2 OUTPUT POWER 4.
On/off mode: • To turn the controller “on”: press the MODE button. • To turn the controller “OFF” :press & change MODE to pH or ORP and hold the MODE button for two seconds until both displays read “OFF”. Release the MODE button and the controller turns off and the displays go blank. Note: Turning the controller “OFF” using the MODE button simply turns off the controller functions, but does not turn off the power to the controller.
alert pH levels (6.8 to 7.3 and off). Release the button when the desired level is reached. The Low Alert cannot be turned off in the ACID feed selection. pH Calibrate: This button allows the operator to calibrate the pH sensor to a buffer or to a sample tested with a test kit. Pressing the pH CALB button allows the operator to set the pH reading to the desired pH level. NOTE: The sample to be tested should always be taken from the flow cell or container in which the pH sensor is located.
Feed Once: same as ORP1. Set Level: same as OPR 1. Note that ORP2 will be 10mV or more below the ORP1. Feed Time: same as OPR1 3.0 Installation 3.1 Locating the controller Install the chemical pump and erosion feed systems as shown in manuals included with the feeders. The controller may need to be set for the particular feeder system used. Before installing the controller, it is important to do a site assessment to consider where and how you will mount the unit.
3.3 Power access Panel 15 12 11 13 9 21 RS 1 2 3 4 ON DATA pH FUSE ORP2 FUSE ORP1 FUSE FLOW 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. ORP FUSE TERMINAL STRIP pH FUSE DATA PORT FLOW SWITCH TERMINAL AUDIBLE ALERT TREMINAL DIP SWITCH ARRAY DATA PORT & FLOW SWITCH INPUT pH OUTPUT ORP1 OUTPUT ORP2 OUTPUT EXTERNAL POWER INPUT 16 17 18 19 20 3.3.1 Dip switches The controller has a series of dip switches to control functions that are not normally accessible on the front panel.
The flow switch light on the face of the controller is also a power light that shows that the controller is connected to a live power source. If the terminal does not have a closed circuit, the controller will not turn on. To install a flow switch, remove the jumper and install the flow switch leads. Note: with the flow switch installed and the jumper removed, the flow light will no longer operate as a power light. It is recommended the jumper be retained to assist in trouble shooting if necessary.
To verify the feed type (acid or base) adjust pH “set” level above the pH indicated on display. The feed lamp should come on if the controller is in acid feed mode. If the controller is in base feed, the feed lamp will come on if the pH indicated is below the pH “set” level. 4.3 ORP settings The controller displays direct ORP readings and the sanitizer level controlled by this reading. The ORP display indicates the effectiveness of the sanitizer; it does not directly correlate to a chlorine ppm reading.
B. Displayed chemical level doesn’t correspond to actual * ORP=0, pH=6.8 indicates sensors (probe) are attached to incorrect connector * Sensors (probe) need cleaning. * Sensors (probe) need replacing. Note: OPR probe reading can be affected by pH probe. Both probes must be in good operating condition. C. Set-points not being reached/maintained * Factory setting for feed time is 0.6 sec on with 5 minute delay. Feeders may require longer feed time. If time is too short, set-points will not be maintained.
6.0 Warranty and ServiceLimited Warranty: Rola-Chem Corporation warrants the original purchaser that this unit is free from manufacturing defects in material and workmanship from the date of the original purchase for one (1) year. If this unit fails within the one (1) year period, it will be repaired or replaced (Rola-Chem’s option) at no charge, when returned to Rola-Chem Corporation with proof of purchase receipt.
7.0 Appendix 7.1 Dip switch settings The controller has dip switches to control functions/options that are not accessible on the front panel. These dip switches are located inside the power access panel. See section 3.3. It is recommended that switches #1 and #2 be in the ON position. Control Switch Description #1 OFF #1 ON ORP chemical feeding is independent of pH feeding and range. #2 OFF #2 ON There is no consecutive feed limit. ORP/pH interlock ORP chemical feed only when pH is within limits.
7.2 Factory Default Setting Reset: The controller can be reset at any time to the default factory settings. The factory presets are: ORP set level: 650mv pH set level: 7.4 ORP alerts: high- 900 mv, low- 100 mv pH alerts: high- 8.0, low- 7.0 Feed time: 0.6 seconds To reset default settings, follow these steps: A. Turn the controller Off: Press ‘MODE’ to ORP or pH and then hold ‘MODE’ Only flow light should be on. B.
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