Rola-Chem RC554XP User Manual

MODEL RC554XP

ORP/pH Digital Controller

Operating Manual

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

SAVE THESE INSTRUCTIONS

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1.0 SAFETY: When installing and using this electrical equipment, basic safety precautions
should always be followed, including:

1.1 WARNING !: To reduce the risk of injury, do not permit children to use this product unless they

are closely supervised at all times

1.2 WARNING !: Risk of electric shock.
Connect only to a grounding type receptacle protected by a ground-fault circuit interrupter (GFCI).
Contact qualified electrician if you cannot verify that the receptacle is protected by a GFCI and that
your installation meets local electrical codes, including grounding of water system components.

1.3 WARNING !: Risk of electric shock.
Do not bury electric cords. Locate cord to minimize abuse from lawn mowers, hedge trimmers, and
other equipment. Replace damaged cords immediately. Do not use extension cords.

1.4 WARNING !: Risk of electric shock.
Install at least 10 feet (3.0m) from inside wall of water enclosure using non-metallic plumbing.
Do not install this controller in a location accessible to the public.

1.5 WARNING !: Risk of Chemical Overdose/Exposure.
Removing power from circulating pump must also remove power from the controller.
Provide a properly located outlet controlled by the circulating pump circuit.

1.6 WARNING !: Risk of electric shock/pinching/chemical exposure.
Remove power sources or lockout circuit prior to performing maintenance on controller.

1.7 WARNING !: Risk of Chemical Overdose/Exposure
Use a device such as a flow switch to shut-off power from the controller in the event of circulating
pump failure. It is unsafe to automatically dispensed chemicals into a circulating system that is not
running.

1.8 WARNING !: Risk of Chemical Exposure.
Pool water must be balanced and stabilized before operating this controller.

1.9 WARNING !: Risk of Chemical Overdose/Exposure
Minimize amount of chemical on site that is available to dispense.
Size the feeder and container to pool/spa capacity.
Dilute chemical for small bodies of water.

1.10 WARNING !: Risk of Chemical Exposure
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.

1.11 WARNING !: Controller uses microprocessor.
Wireless communication equipment or other electrical devices operated in close proximity may
cause inadvertent actuation of chemical feed pumps.

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Table of Contents

Section title Page

1.0 Safety Instructions 2

2.0 Quick Start Reference 4

3.0 Description and Specifications

3.1 General Description 5

3.2 Specifications 6

3.3 Description of controls 7

4.0 Installation

4.1 Locating the controller 10

4.2 Mechanical installation 10

4.3 Power access panel 11

4.3.1 Dip switches 11

4.3.2 Fuses 11

4.3.3 Flow switch 11

5.0 Operation

5.1 Startup 12

5.2 PH settings 12

5.3 ORP settings 13

5.4 Operating mode 13

6.0 Troubleshooting 13

7.0 Warranty 15

8.0 Appendix

8.1 Dip switch setting 16

8.2 Factory default settings 17

8.3 Water Chemistry Ranges-NSPI 17

8.4 Typical system installations 18

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2.0 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.

On/Off:

- Press the mode button to turn the unit on. Note: ‘FLOW’ light must illuminate.

- Press and hold the mode button to turn the unit off.

- “OFF” will be displayed in the windows

To Operate:

- Press and release the mode button until the “AUTO” LED is lit.

- Unit will now operate in the factory preset settings:

- Set levels: ORP = 650 mV, pH = 7.4

- Feed times: 0.6 second feed with a 5 minute delay

- Limits: ORP; 900 hi, 100 low, pH; 8.0 hi, 7.0 low

To Change Settings:

Note: Press and release the mode button until the desired ORP or pH LED is lit.
Once the settings are changed, they will remain at those settings until they are changed
again.

- Set level: press the Set Level button until the desired set point is reached. Release the
button.

- Feed time: press the Feed Time button until the desired feed time is reached.
Release the button.
The numbers represent the seconds of feed time (all with 5 minute delays).
Range is 0.6 to 900 sec. (15 min.). Constant feed is ‘con’. Factory setting is 0.6 sec.

- Hi alert: press the Hi Alert button until the desired level is reached. Release the button

- Low alert: press the Low Alert button until the desired level is reached. Release the button.

Manual Feed:

- Press and release the mode button to light the LED associated with the desired feeder to be
manually fed, ORP or pH.

- Press the “feed once” button. The desired feeder will go through one “set feed” time cycle.

There is no manual feed option when the unit is in constant feed.

Other: See the appropriate manual sections for--

- setting the time out feature

- calibrating the pH sensor

- changing dip switches (pH/ORP interlock, feeder time out, acid/base, and lockout).

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3.0 Description and Specifications

3.1 General Description

The controller is a microprocessor-based chemical automation system, which continuously
monitors and maintains the pH balance and sanitizer level in a swimming pool or spa.

The pH and sanitizer level (ORP) are displayed using sun-bright seven-segment light emitting
diodes. The pH and ORP levels are continuously monitored and displayed on the controller’s
front panel. The ORP/pH controller has been designed to be user friendly. One MODE button
and six SET buttons allow the operator to easily set parameters.

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.

The sanitizer (ORP) display range is 0 to 995 mV with a 5 mV display resolution. The ORP
set point is adjustable from 400 to 900 mV, with default set point of 650 mV. During an ORP
feed cycle, the ORP feed lamp will blink when sanitizer chemicals are being feed and
illuminate continuously during the feed delay portion of the feed cycle. The ORP Alert lamp
will illuminate when the ORP reading is higher or lower than the high and low ORP Alert set
points and prevent the feeding of sanitizer chemicals.

A manual feed cycle for pH or ORP can be started by pressing the Mode button (placing the
controller in stand-by mode for either pH or ORP) and then pressing the Feed Once button.

The feed cycle is a timed based ‘feed then delay’ system. The controller has a series of fixed
feed times (0.6 to 900 sec.) with associated delays as well as a constant feed mode. A feed
cycle consists of a feed time plus a delay time. Example, a 30 second feed time followed by
a five-minute delay would have a 5½ minute feed cycle. The chemical feeder dispenses
chemical only during the feed time portion of the cycle and then waits for a delay period to
allow for chemical to dispense throughout the swimming pool or spa.

The controller incorporates an internal non-volatile memory in which all factory default
settings as well as field-modified settings are stored. The internal memory is not affected by
power interruption and requires no backup battery. Acid/base, pH/ORP interlock, function
control and lockout switches are located behind the terminal block access panel.

The pH and ORP outputs are capable of handling 5 amps each at 120 Volt AC. The relay
outputs are fused and transient protected. An internal terminal strip is provided for field wiring
of the controller. The internal step-down transformer has a class-two energy limiting rating to
provide for electrical safety.

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NOTE: When automating any body of water, it is essential to size the feeders to reach
desired levels in a relatively short period of time. Generally, automating an existing body of
water with existing feeders will require the output of the feeders be increased accordingly. If
feeders are unable to keep up with demand in a short period of time, automation becomes
ineffective.

3.2 Specifications

ORP & pH Ranges ORP pH .
Display: 0 to 995 mv. 6.8 to 8.4
Control: 400 mv to 900 mv 7.0 to 8.0
(5 mv increments)
Factory default: 650 mv 7.4

Input Power
120 Volts AC, 50/60 HZ, 3 wire grounded power cord.
Combined load not to exceed 10 amps.
GFCI source required

Output Power

120 Volts AC, 50/60 HZ, 5 amps (fused) for both ORP and pH

Two 3-wire grounded power receptacles

Terminal strip for hardwire applications (included)

Displays:

ORP and pH – red digital
Power and flow indicator - LED
Alert indicator & Feed indicator- LED (ORP & pH)
Mode indicator- LED (pH ,ORP , Auto)

NOTE- feed lamps flash during the feed time and are on constant during the delay time of
the feed cycle.

Operating Temperature: 40 to 120° F

Selectable Features

+ ORP and pH settings + High and low ORP and pH alerts + ORP and pH feed/delay
times
+ Manual feed + pH calibration + Acid/base feed
+ Keypad Lockout + Adjustable time-out + ORP and pH Interlock
+ Reset

Features and Options

+ Flow switch input + Individually fused outputs + 120 vac transformer

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