Ultrapure™ Water Management System; Vision; Smart Heat; Load Sharing - Dimension One Spas Sarena Bay Owner's Manual

UltraPure™ Water Management System
This spa is equipped with a highly advanced hot tub water treatment method, the UltraPure™ Water
Management System. The UltraPure™ Water Management System is an integrated water management system
with ozone injection, dual contact chambers, and 24-hour filtration.
Energy conversation is designed into the UltraPure™ Water Management System. The circulation
pump has a built-in heat recovery system that diverts circulation pump heat directly to the spa water.
This feature reduces demand on the spa heater, and saves energy.
To prevent the hot tub from overheating, the circulation pump turns off when the water temperature
rises 1.1° C (≅2° F) above the set temperature. When the water temperature cools down to the set
temperature, the circulation pump will turn back on.
The circulation pump will run for short periods when the water temperature is 1.1° C (≅2° F) above set
temperature to verify temperature.

Vision

Vision, an alternative purification system, can be used in conjunction with your UltraPure™ Water
Management System. The advantage of Vision over conventional halogens (bromine and chlorine) is that it will,
as a result of lower chemical use, provide softer-feeling water. Additionally, low chemical levels can mean
fewer dissolved solids, which results in less water chemistry maintenance. Please refer to the Vision
instructions for proper installation. Also read the Water Care Guide for more information.

Smart Heat

On all Dimension One Spas, when the water temperature is at least 0.55° C (≅1° F) below the set
temperature the heater will turn on and remain on until the water temperature rises to 0.55° C (≅1° F) above
the set temperature. Smart Heat recognizes the difference between the set temperature and the actual water
temperature, then determines the rate of heating required to best maintain the set temperature.

Load Sharing

Load Sharing recognizes the number of jet pumps in use and compares it with the available power.
Computerized load sharing adjusts the heater to maximize the heater output based on heat requirements and
spa operation, then optimizes heat recovery using the amperage that you have available.
2003 Sarena Bay™
Export Owner's Manual
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