ITS Telecom ITS-10.3HPi Installation Instructions Manual page 4

1.4 Basic operating logic
The unit is equipped with a state-of-the-art micro controller running complex software that monitors and manages the operation of the unit. The unit has a
"heating", "cooling" and "pump" mode. If for example the desired pool temperature (set point temperature) is 28℃ and the pool is currently 15℃, the heat
pump will heat the pool to 28℃ only if it is in "heating" mode. If the pool water on the other hand was 32℃ the unit will cool it down to 28℃ if the unit is in
"cooling" mode.
Once installed and commissioned (we will assume "heating" mode for this example) the basic operation is as follow:
If sufficient water flow is detected by the internal flow switch (swimming pool pump is on and flow rate is strong enough) the internal inlet water
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temperature sensor will measure the inlet water temperature. If the water temperature is less than the setpoint temperature the unit will start heating.
The unit will start at a low output power level since that will result in the highest efficiency. Based on the difference between the current water
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temperature and the setpoint temperature and the rate at which the water temperature increases the unit will calculate the optimal output power level
to operate at to offer the best efficiency and saving.
When setpoint is reached, the unit will adjust the output power level to match the calculated required value needed to maintain setpoint and periodically
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make adjustments if required.
If the internal water flow switch deactivates due to the pool filter pump switching off or insufficient flow (dirty filter etc.), the unit will de-activate 3 times
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and show "E0" before initiating full shutdown with "E08" on the screen till sufficient flow is restored.
1.5 Installation / maintenance and repair
The appliance must be installed by a ITS Heat Pumps approved dealer.
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The power connection to the unit must be installed by a qualified electrician and must comply with national and provincial wiring regulations. An electrical
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certificate of compliance (COC) must be obtained.
Please make sure that the unit and power connection have good earthing, otherwise it may cause electrical shock.
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Make sure that a correctly sized circuit breaker for the unit is installed. Failing to do so could lead to electrical shock or fire.
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Before opening the access panel to the electrical terminals, all supply circuits must be switched off.
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Do not open any other of the panels on the unit. Risk of electrical shock and serious bodily harm by the running fan blade exists.
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If the supply cord or any of the unit covers is damaged, it must be replaced by a qualified person in order to avoid a hazard.
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Should ice buildup occur on the unit, do not try to defrost it with external methods. The unit has a build in defrost cycle controller by the software.
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The unit must be services at least once a year. Please consult the maintenance section of this manual.
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The annual service of the unit may only be done by an ITS authorized person.
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The unit may only be repaired by an ITS authorized person.
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ITS-Inverter Pool Heat Pump R32a 2024 - V1.3
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