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During summer months in hot climates, there may be times when the actual water temperature
exceeds the desired temperature set by the user. e.g. If the spa is set to heat to 35 C , but the
actual water temperature is 38 C. Please consider this - In the winter your spa gets cold
because the air temperature is cold. To combat this we heat the water and keep the spa
covered when not in use. If the spa is turned off and the ambient temperature is 15 C,
eventually the spa water will lose heat until it too is 15 C. In the summer the same applies but in
reverse - you can turn the heater down, even turn the pump off, but if the ambient daytime
temperature is 35 C- 42 C then the spawater will also remain atthat temperature.
Manufacturers make no attempt to supply a system that cools water. The quickest way to
combat the problem is to change the water, but even this new water will eventually heat up to
the air temperature. Turn the set temperature down so the heater does not come on. Reduce
the minimum filtration time so the pump runs less. The less the pump runs the more the water
will cool. If the nighttime temperature is low, leave the cover off the spa to let heat escape, but
put it back on during the day to keep heat out. Also make sure the spa is shaded from direct
sunlight.
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My spa is too hot in Summer!
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The Spa Power 500A Mk2 automatically controls the pump and heater to filter the water and maintain it at the
desired temperature as set by the user (see below).The user can leave the system to look after the spa and know it
will be at the correct temperature whenever he or she wants to use it.
Temperature Control
Adjusting Set Temperature
UP Increase the set temperature by 0.5 C per beep (Max = 41.5 C)
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DOWN Decrease the set temperature by 0.5 C per beep (Min = 10.0 C)
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The Spa Power 500A Mk2 gives the user direct control of the pool temperature from the poolside control panel.
Holding down the Up or Down button will adjust the temperature set point as shown on the digital readout. There is
a slight delay before the buttons operate to reduce the risk of accidental adjustment. The pool temperature will be
maintained very close to the set temperature.
Default Display = Temperature Set Point 37.0
Sensed Temperature
The sensed temperature (in the heater) can be checked if
necessary by pressing the Up & Down buttons simultaneously.
The display flashes while showing the sensed temperature.
AUTO
PUMP
HEATER
AIR
SPA POWER 500
37.0
Press both buttons
simultaneously
Congratulations on choosing the latest Spa Power 500AMk2 control
system. This controller makes use of the latest technology, including
innovative optical and digital sensor designs. The user-friendly touchpad
and reliable components provide you with the best value controller in its
class.
In addition to the temperature setting the user can select the preferred heating mode. The two available heating
modes are...
1/ Demand Heating (displayed as Ht.d).This is the default setting in which the pump and heater will come on
automatically whenever the temperature drops slightly below the set point.
2/ Filtration Only Heating (displayed as Ht.F) .In this mode the pump and heater will come on automatically no more
than once per hour to filter and heat the water. This mode is provided as an option for those who prefer to limit the
natural cycling of the system.
To select the heating mode first press the Pump and Down buttons simultaneously to display the current heating
mode, then press and hold the Up or Down buttons to change modes.
Heating Mode Selection
AUTO
PUMP
HEATER
AIR
SPA POWER 500
Press both buttons
simultaneously
AUTO
PUMP
HEATER
AIR
SPA POWER 500
Press Up or Down
buttons to toggle
between heating
modes
Safety Notes
Before using ensure that the spa pool has been connected to a suitable weather protected outlet socket, equipped with a
double pole isolating switch, which is of the correct rating and complies with the local wiring regulations.
When installing, refer to your local wiring code. In particular refer to ECP2 & ECP25 (AS/NZ) and EN60364-4-1 & EN60364-7-
1 (EU). The system must be installed in such a way that live parts are not accessible by a person in the pool. If a supply cord
is not fitted the system must be permanently connected to fixed wiring through a 30mA or less RCD.
It is recommended that the steel reinforcing in any concrete base on which the pool is sitting be equipotential bonded to the
earth conductor in the supply to the spa. This is to protect against the possibility of low voltage shocks caused by differential
earth voltages. Refer to AS/NZS3000:2000 Sections 5.8 & 7.2 or EN 60364.
This appliance is not intended for use by young children or infirm persons without supervision. Young children should be
supervised to ensure they do not play with the appliance.
