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ENGLISH
Heat pump PVP Inverter
It is important that this manual is read carefully by both the installers and users to ensure the heat pump's function and lifetime.
Pahlén AB is not responsible for any damage due to improper installation, mishandling or improper maintenance.
Product description
Pahlén heat pump Aqua PVP is intended for heating the swimming pools or whirlpools. It is intended for operation at air
temperatures between -7°C and + 43°C to obtain 18-35°C of the pool temperature (maximum power is achieved at the air
temperatures between +15°C and +25°C).
Heat pump efficiency is influenced among other things by water, air and pool temperatures. On cold days and nights,
the operating time required to obtain the desired temperature in the pool becomes longer than on hot days . For economy
reasons it is better to cover the pool when not in use, especially at nights. Approximately 60-70% of the heat is lost through the
pool water surface. Covering the pool therefore reduces the heat pump operating time.
By-pass-kit (item no. 14950181 for c-c 340 mm and 390 mm, 14950182 for c-c 620 mm) is a Pahlen accessory containing all
connections required for proper installation, and allows to easily adjust the optimal water flow through the heat pump.
Key functions
This heat pump is equipped with safety functions that automatically stop the operation in order to protect the heat pump.
The display shows the current pool temperature, or an error code if an error occurs.
Flow switch
The flow switch is turned on when a sufficient flow of pool water flows through the heat pump's titanium heat exchanger .
At low flow or no flow, the heat pump shuts off, and the display shows "E3" error code.
When the flow returns to normal, the heat pump restarts automatically.
High and low pressure guard
Protects compressors. The pressure switch can detect the refrigerant circuit pressure at high pressure/ low pressure sides and
turn off the heat pump at too high/low pressures.
If the pressure switch detects a too high pressure, the display shows "E1" error code. If the pressure switch detects a too low
pressure, the display shows "E2" error code. When the pressure returns to normal, the heat pump restarts automatically.
Low outdoor temperatures
The heat pump automatically shuts off if the outside temperature is too low for the pump to produce heat.
The display shows "Eb" error code. Heat pump restarts automatically when the outdoor temperature becomes too high.
The exact temperature for disconnection varies depending on the current weather (and the amount of sunlight), and activates
the temperature sensor positioned on the heat pump back side.
Restart delay
Heat pump has a 3-minute restart delay (to prevent the compressor thermal overloading caused by the refrigerant pressure
being not balanced, which can occur at short starts and stops).
Operating mode
Heat pump has two different operating settings: "Smart" and " Silence". They have different advantages in different situations.
Smart:
The operation is automatically adapted to the air and water temperatures in order to quickly heat the pool to the desired
temperature. Recommended during the heating phase:
Silence:
Heating capacity between 25 and 80%, noise level 3% lower than in the "Smart" operating mode.
Recommended at night or when the pool has the required temperature, and the ambient temperature is at least 15°C .
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