Aquacal TropiCal T035 Operation Manual page 56

Call Flex Accessory (# 0030-LEDS)
This accessory will override a circulation pump to provide
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water to the heat pump when the set temperature is not met.
Grid Flow Switch (# 0040S)
Used for automatic pool/spa thermostat switching.
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This kit is not to be used on applications exceeding 50 PSI
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(345 kPa).
Liquid Blankets
An invisible liquid heat barrier designed to retain heat and
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extend the swimming season.
®
AquaCal recommends
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Over Temperature Alarm Kit
This kit is an additional safety device. It disables the heat
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pump if any malfunction occurs that allows the water
temperature to surpass a safe level.
This kit is strongly recommended for all spa applications.
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Single Phase Heat Pump - (# STK0221)
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Three Phase Heat Pump - (# STK0222)
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®
Lo-Chlor Aqua Blanket ™ .