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Once the desired set point value has been selected, do not touch any of the keys for
5 seconds. The unit will then revert to displaying the current water temperature, but
will now control the water temperature to a maximum of the selected set point*.
*Set Point (Note)
The set point is the maximum temperature that the digital ther-
mostat will allow the water to be heated to. Upon reaching the set point temperature
the digital thermostat will switch the heater off, it does not increase or decrease the
power output of the heater.
When deciding upon the set point temperature, remember that Koi can be trauma-
tised if their environmental temperature is dramatically changed over a short period
of time, any changes should be made gradually.
T
S
IME
WITCHING
To prevent overheating of the switch components within the heater caused by fre-
quent on and off switching (cycling), the digital thermostat has been pre-
programmed with a time delay function. This prevents rapid fluctuations in water
temperature from switching the heater on and off more than once in a two minute
period.
The time delay mode is indicated by the flashing of red indicator 6 on the digital
thermostat (see diagram on following page).
Differential:
When the water has reached the set point temperature the heater will switch off and
will not switch back on until the water temperature has dropped by 0.6˚C. This
value is known as the differential and is also in place to prevent overheating to the
switch components caused by cycling.
O
Y
PERATING
OUR
Upon completion of the installation, run the water-circulating pump to purge the
system & heater of air. (i.e. Remove any trapped air in the system & heater).
On initial power up of the heater the amber light should illuminate. Only when the
water circulating pump is operational and delivering in excess of 1,000-litres per
hour of flow (220 UK gallons) and the digital thermostat is set to a value higher
than that of the water temperature, will the red indicator light turn on and the amber
indicator light turn off. In this mode the heater is on and heating.
Warning!
D
ELAY
E
H
LECRO
EATER
The flow switch paddle can be damaged when reversing the flow direction if it is
lifted by more than 5-mm from its housing and turned with force. If the flow switch
has been rotated it is important to ensure that it is finally locked in the correct ori-
entation perpendicular (at right angles) to the flow of water.
The flow rate of water entering the heater must not exceed 10,000-litres (2,200 UK
gallons) per hour. A higher flow rate will require the installation of a by-pass to pre-
vent damage to the element(s).
The heater will not operate with a flow rate of less than 1,000-litres (220 UK gal-
lons) per hour.
W
ATER
Elecro TiTANIUM Aquatic heaters are suitable for use with salt water and are also
unaffected by PH levels.
Warning!
Q
UALITY
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