AQUASWITCH AQUASWITCH & 760-A AQUASWITCH Operation Manual INSTALLATION • OPERATION • MAINTENANCE 22 August 05 ACCURACY • RELIABILITY • SIMPLICITY Water Quality Instrumentation Accuracy • Reliability • Simplicity
TABLE OF CONTENTS SECTION PAGE 1 INTRODUCTION 1.1 SCOPE ................................................................................................................................. 1 1.1.1 Functional Descriptions ............................................................................................ 1 1.1.2 Applications .................................................................................................. 1 1.2 SPECIFICATIONS .........................................................
SECTION 1 Introduction 1.1 SCOPE This manual provides the necessary information to install, operate and maintain the Myron L Company’s Aquaswitch/760A Aquaswitch. Sections 1 through 3 provide the user with an applicational description, mounting, wiring and operational procedures. Section 4 identifies their primary components and provides the user with easy-to-use calibration and preventive care procedures. Section 5 (Appendix A) provides an easily understood Replaceable Components Chart. 1.1.
1.2.3 HP SOLENOID PILOT VALVES CS10 CELL SPECIFICATIONS DESCRIPTION: Being corrosive, ultra-pure water can be difficult to control. Myron L HP valves solve this problem by utilizing tap water or air to open and close the diaphragm. HP valves, therefore, are ideal for use with the Aquaswitch and many other water corrosive solution applications. CONSTANT: 0.05 SPECIFICATIONS PRESSURE/TEMPERATURE LIMITS: 100 psi (690 kPa) / 212°F (100°C) SIZES: 1", 2", or 3" IPS; compatible with plastic or metal piping.
SECTION 2 Installation 2.1 GENERAL 2.2 MECHANICAL INSTALLATION Section 2.2 provides the user with the recommended procedures for mounting the Aquaswitch/760-A Aquaswitch and for completing their necessary electrical installation. All Aquaswitch and 760-A Aquaswitch electronics are packaged inside drip/weather-proof housings. Their physical dimensions have been designed to allow for both surface and panel mounting.
NOTE: The 760-A Aquaswitch is not designed to operate with a Cell cable length that exceeds 100' (30 meters). 3 If at all possible, mount the Controller at eye level for viewing convenience. 2.2.1 SURFACE MOUNTING NOTE: Surface mounting will require two (2) user supplied 1/4” 20 mounting screws See, Fig. 2-1 for hole drilling locations. For ease of surface mounting, a surface mounting plate is available. Order Part No.: SMP50 for Aquaswitch SMP60 for 760-A Aquaswitch STEP 1 Select your site location.
2.3 ELECTRICAL INSTALLATION The Aquaswitch and 760-A Aquaswitch require the user to follow separate electrical installation procedures. In addition, based on the user’s solenoid voltage specifications, the user will be required to connect optional Solenoid Power. NOTE: All cable watertight restraints are user supplied 2.3.1 AQUASWITCH MAIN AC POWER NOTE: The following procedures are to be used to install the Aquaswitch 115 VAC main power source.
2.3.2 760-A AQUASWITCH MAIN AC POWER NOTE: The following procedures are to be used to install the 760-A Aquaswitch 115 VAC main power source. For the procedures to install the optional 220 VAC main power source, the user must first complete the installation procedures in Section 2.3.3. Failure to do so could result in damage to equipment and/or property. STEP 1 Verify that the facility’s 115 VAC power source is turned OFF or disconnected. STEP 2 Following STEPS 2 and 3 in Section 2.2.
2.3.4 PILOT VALVE SOLENOID CONNECTIONS 2.3.5 CELL CONNECTIONS (MODEL 760-A ONLY) NOTE: Section 2.3.4 provides the procedures for installing 115 VAC solenoid valves with maximum load rates of 25 watts per valve. For the procedures to install solenoid valves other than 115 VAC, see Section 2.3.4.1. (Refer to Fig. 2-10 for recommended valve wiring.) STEP 1 Place the CS10 Cell’s interface cable and watertight cable restraint into the enclosure’s appropriate access hole.
SECTION 3 Operating Procedures 3.1 GENERAL 3.2 SWITCH AND INDICATOR CONTROLS Section 3.2 provides the operational descriptions for each of the Aquaswitch/760-A Aquaswitch switch and indicator controls. Section 3.3 provides the user with recommended checkout procedures. AQUASWITCH BANK A/B “IN USE” Indicators The amber “IN USE” LED indicator light is ON only when its respective Bank’s solenoid valve is energized.
3.3 OPERATIONAL CHECKOUT PROCEDURES 3.1 The following checkout procedures are used to verify that the Aquaswitch or 760-A Aquaswitch is operating properly. 3.2 NOTE: To complete the checkout procedure, it is assumed that the system is fully installed and the Aquaswitch is connected to a reliable resistivity Controller or a 760-A Aquaswitch is installed. It is also assumed that two fresh Dl banks are on line with the system and the Controller is indicating water quality in the desired range.
SECTION 4 Component Identification, Calibration and Preventive Maintenance 4.1 GENERAL 4.2 PRIMARY COMPONENT IDENTIFICATION Section 4.2 provides detailed illustrations to assist the user in identifying the Aquaswitch/760-A Aquaswitch primary components and cable connector designations. As identified in Section 3, the Aquaswitch/760-A Aquaswitch switch and indicator components are mounted directly to the front panel.
4.3 “PURGE CYCLE”. CALIBRATION PROCEDURES NOTE: The Purge Cycle trimmer adjustment screw (R2) (see Fig. 4-1) determines the time span that the Bleed and Process solenoid valves are energized during either a Bank A or B Purge Cycle. STEP 1 Being careful not to excessively strain the cable(s), unfasten the enclosure’s front panel. STEP 2 Turn the Logic Module trimmer adjustment screw (R2) to the desired Purge Cycle setting. (See Fig.
4.4 “ALARM RESET” JUMPER ADJUSTMENT 4.5.2 INTERNAL SET POINT ADJUSTMENT NOTE: The Aquaswitch/760-A Aquaswitch are shipped with an Alarm condition that occurs whenever the “IN USE” Banks are switched automatically. STEP 1 Being careful not to excessively strain the cable, unfasten and remove the front panel. This section provides the user with the procedures for activating an Alarm condition every time the “BANK SWITCH” is manually pressed.
4.5.3 FULL SCALE CALIBRATION PROCEDURES NOTE: Before attempting to calibrate the 760-A Aquaswitch analog meter, refer to Section 4.5.1. 4.7 ALTERNATIVE VALVING CONFIGURATIONS AND OPERATION FOR CONTINUOUS PROCESS WATER STEP 1 Turn OFF main AC power. NOTE: The following methods will provide an uninterrupted water supply to process if a fresh Dl bank is NOT in place when the other Dl bank exhausts. Refer to Fig. 2 - and 2-5 on page 5.
WARRANTY All Myron L monitors and cells have a one year warranty. If any monitor or cell fails to function normally, return the faulty unit to the factory prepaid. If, in the opinion of the factory, failure was due to materials or workmanship, repair or replacement will be made without charge. A reasonable service charge will be made for diagnosis or repairs due to normal wear, abuse or tampering. Warranty is limited to the repair or replacement of monitor or cell only.
IMPORTANT! PLEASE READ! ADDENDUM TO USER’S MANUAL AQUASWITCH 760A AQUASWITCH Most Aquaswitch users choose Myron L HP SPECIFIC CHANGES (cont’d) Series 24 vac valves. For this reason, we have Page 7, Figure 2-9 shows installed jumpers modified the circuit boards of the Aquaswitch E4 and E5 as standard. Also on Page 7, Section and 760 Aquaswitch, and made the necessary 2.3.4 assumes that jumpers have been installed. corrections to the User’s Manual. As a result: These jumpers are no longer needed or provided.
MYRON L COMPANY 2450 Impala Drive Carlsbad, CA 92010-7226 USA Tel: 760-438-2021 Fax: 760-931-9189 www.myronl.
