Spa “included, Additional features, Heater and circulation pump control – Dimension One Spas AQUATIC FITNESS SYSTEM 2003 User Manual
Page 21: Smart heat

Aquatic Fitness System
2003 Owner’s Manual
Spa “Included”
Congratulations, AquaFit™Dual Temp Owners! You have purchased one of the finest portable systems 
available. You not only get the pleasures of aquatic exercise in the “pool side”, you also have a “dedicated spa” 
on the other side. Take the time to read these additional instructions carefully because they contain 
information specific to the spa portion of your Aquatic Fitness System. If you have any questions, please
contact your local Authorized Dimension One Spas Dealer. 
 
The spa side is completely “self-contained” from the pool side. This means that the water in the spa circulates 
through its own closed system – including pumps and jets. It contains a separate filtration system and the 
water chemistry must also be managed separately using the guidelines contained in the Water Care Guide Part 
No. 01513-192. 
 
The following features are included on your hot tub: 
• Meets or exceeds the most stringent requirements of UL1563 Standard for Safety for Electrical Spas
as evaluated and inspected by Edison Test Labs (ETL).
• Completely self-contained with load sharing capabilities 
• 100% foam insulated 
• All hot tub shells are formed from Duratex 
• Top access, easy to clean filter systems 
• Water level referencing weir skimmer 
• Proportional FastFlo™ Heater 
• A variety of interchangeable jets 
• Exclusive, custom hand-set ceramic tile adds a distinctive touch 
• Built-in, automatic freeze protection 
• Automatic high/low speed filtration cycles 
Additional Features
• Programmable Digital control with digital display 
• CrystalZone™ Water Management System 
• Long life, dual speed HydraMax pump 
• 75 sq. ft. (6.97 m
2
) of filtration
Heater and Circulation Pump Control
On all Dimension One Spas, when the water temperature is 1° F (.55° C) below the set temperature the 
heater will turn on and remain on until the water temperature rises to 1° F (.55° C) above the set 
temperature. To prevent the spa from overheating, the circulation pump turns off when the water 
temperature rises 2° F (1.1° C) above the set temperature. When the water temperature cools down to the 
set temperature, the circulation pump will turn on. 
 
 
The circulation pump will run for short periods when the water temperature is 2° F (1.1° 
C) above set temperature to provide optimum operation. 
Smart Heat
Smart Heat optimizes heat recovery using the amperage that you have available. Along with computerized load 
sharing, that automatically recognizes the number of jet pumps in use, compares it with the available power, 
Smart Heat recognizes the difference between the set temperature and the actual water temperature, and 
adjusts the heater to optimize the heater output. 
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