Aquacal TropiCool TC500 Installation Manual page 30

Call Flex Accessory (# 0030-LEDS)
This accessory will override a circulation pump to provide
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water to the chiller when the set temperature is not met.
Automatic Sequencing Controller
An Automatic Sequencing Controller (ASC) provides easy control of all units from one lead unit and prevents the
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simultaneous start-up of multiple chillers.
Site voltage drop is minimized and utilities are not subjected to large in-rush demands of electrical current.
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Part number is based on number of chillers to be controlled. Call AquaCal
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configuration. See "Contacting AquaCal AutoPilot, Inc." on page 1.
Grid Flow Switch (# 0040S)
Used for automatic pool / spa thermostat switching.
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This switch can also be used in place of the water pressure
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switch. This may be needed when the pool / spa elevation is
higher than the chiller. A higher elevation of the water can
cause a false signal to the chiller; indicating water is
flowing through the chiller when it isn't.
This kit is not to be used on applications exceeding 50 PSI.
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Plumbing Unions
2 Inch Unions - (# PLS2627)
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Remote Control Kit (STK0070)
A remote (wired) control kit allows for full control of the chiller from up to 100 feet from the equipment.
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for assistance with correct