Owner`s manual
www.imperialspaparts.com
www.imperialspaparts.com
Spa Equipment System
Single Speed Pump
The system consists of a single speed pump (two, if equipped) that provide hydrotherapy jet action, a
special small circulation pump with a factory installed ozonator (if equipped), provides continuous filtration
and oxidation of the water (see page 19 for sanitizing instructions). Each spa is equipped with an electrical
heater and mood lighting.
Circulation Pump
Your system is equipped with a very efficient circulation pump which provides 24 hour continuous water
circulation and filtration. The spa’s entire contents will be completely filtered 15-25 times each day. It
works like this: a dedicated, energy efficient circulation pump constantly draws water from the spa, runs it
through the filter and the heater (heating only when necessary), then back to the spa. Utilizing the prin-
ciple of a heat transfer system, our circulation pump heats your spa water. Does this mean the spa has no
heater? No. Your spa’s heater will have to work less often, making it much more economical to operate.
Your spa has no cooling system and in summer season, when the ambient temperature can be extremely
high, to prevent the water temperature from rising above the set point, the circulation pump will automati-
cally switch to a 2 hours On / 10 hours Off cycle. If there is a call for heat when the circulation pump is off, it
will have priority and this will activate the circulation pump until the water temperature reaches the set
point (see Control System Features, filter cycle for further details). The Ozone output is on whenever the
circulation pump is running except when the jet pump(s) is (are) activated by the user.
Heater
Your spa is equipped with an electrical heater. By setting your thermostat to the desired temperature, your
heater will automatically turn on and off as needed. This is not only convenient, it is energy efficient. The
spa will maintain the water temperature as required and does not depend on the filtration cycle to heat.
Digital Topside Control
Your spa is equipped with a Digital Topside Control located on the top of the spa. The Topside Control
provides all control functions of the spa equipment (pumps, light, heater). For more details follow the
TOPSIDE CONTROL OPERATING INSTRUCTIONS and CONTROL FEATURES.
Ozone Generator
The ozone generator (if equipped) will inject ozone into the spa water during the normal filtration cycle.
The ozone generator operates in conjunction with the 24 hour circulation pump. The ozone is injected into
the water to supplement chemical sanitizers, kill bacteria, oxidize organisms. The Ozone generator will
help to reduce the amount of chemicals needed to keep the spa sanitary and clean. Anytime the jet
pump(s) is (are) turned on, the ozone generator will turn off. It will remain off until the specific function has
been turned off.
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