Opening of Proposals - MPAC Water Softener System - Culligan Water

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The controller shall include a sealed keypad, capable of programming all controller functions, located on the face of the controller. The controller display shall be a multi -line OILED display capable of full text readouts of operating status and codes. The firmware shall be capable of being updated to the latest version. An audible. alarm beeper capable of emitting a tone of —70 dBA shall be available but capable of being disabled if so desired. The controller shall allow for a manual initiation of the automatic regeneration sequence by utilizing a regeneration selection from the controller menu. The controller shall operate on a low voltage electrical system, The system shall include a UUCUL listed transformer. The entire electronic control package and its associated inputs/outputs shall require not more than 24 VAC @ 50VA. The control shall be rated for web environments and certified to NEMA 3R. The controller shall utilize EEPROM to save pertinent programmed data and statistical functions. The controller must retain all functionality for power interruptions of less than 72 hours. A battery backup shall be installed and capable of maintaining the time of day for a minimum of 5 years. 4,5.1 System control options One or a combination of below control options shall be available Timeclock - An operator selected program of a time -initiated reconditioning for single units shall be available. The controller shall be capable of being entirely programmed in the field without additional interface devices. The operator shall be able to select reconditioning to occur after a specified number of hours or days or specific day of the week. The electronic controller shall indicate various data that includes number of reconditionings in the last 14 days, days since last reconditioning, total number of reconditionings for the life of the unit, current day of the week, time of day, and unit in reconditioning. Water Meter - An operator selected volume based reconditioning for single units shall be available. A flow sensor package shall be provided consisting with an appropriately sized installation fitting. The operator shall be able to select reconditioning to occur after a specified number gallons. The electronic controller shall indicate various data that includes number of reconditionings in the last 14 days, days since last reconditioning, total number of reconditionings for the life of the unit, time of day, and unit in reconditioning. Culligan Aqua Sensor- An operator selected program of immediate or delayed hardness initiated regeneration for single units shall be available. An Aqua-Sensoro control probe will be inserted into the resin bed and will sense the need for regeneration based on electrical impedance within the resin bed and will signal the circuit board to initiate regeneration after a continuous 6 minute increase in impedance ratio. The system will compensate for variations in water hardness and temperature and will require no field adjustments when operated within the normal temperature range of the softener, The controller shall be capable of being programmed in the field without additional interface devices. The controller shall indicate various data that includes number of regenerations in the last 14 days, days since the last regeneration, total number of regenerations for the life of the unit, last slow rinse time, time of day, and unit in regeneration. 4.5.2 In addition the following functions shall be provided as part of the system controller: The controller shall have the capability of providing communications with the following external devices: • Serial Communications (RS-232 & RS-485) • USB • Modbus RTU • Profibus Communications • BACnet Communications • Modem (cell modem or land -line modem) • dry Contact Alarm Relay • Wireless Remote (local RF wireless remote, 200 ft range) Regeneration sequence timers: The controller shall allow control customization of individual regeneration cycle times, each programmable from 1 - 99 minutes. The regeneration cycle and time of cycle remaining shall be displayed when in regeneration. Page 3 of 5