Start-Up Procedure For The Unit - TdA ZEWMBAD series Technisches Handbuch, Inbetriebnahme Und Betriebsweise

ZWEMBAD SERIES · AIR/WATER SYSTEM

6 START-UP PROCEDURE FOR THE UNIT

Operating requirements for the heat pump
The outdoor temperature must be higher than +5 ºC.
The heat pump is provided with a defrost thermostat that guarantees the compressor shutdown and the operation
of the defrost system.
When washing the filter of the filtering pump, it is OBLIGATORY that the heat pump is turned off.
Before any start-up, you should check:
1st. · The correct clamping of the hydraulic connections (exchanger inlet / outlet).
2nd. · The correct fastening of the electrical cables to the connection terminals. Poorly secured terminals can
cause the terminal block to heat up.
3rd. · When setting-up, the electrical connections, as well as the general power supply and voltage should be
verified.
4th. · Once the unit is connected, verify the intensity absorbed by the phases and check that the fan is
operating in the correct direction.
5th. · Give power to the equipment by connecting the general power switch on the outside of the unit. Once
the unit is connected, verify the intensity absorbed by the phases.
6th. Three-phase units have a phase control relay that guarantees the compressor is operating in the correct
direction. If the controller shows the compressor it is running and it does not, phases must be
interchanged. Card gives an alarm signal.
7th. · With the machine running, verify the intensities absorbed by the electric motors, making sure they do
not exceed the limits mentioned in the technical specification sheet.
8th. · Verify that the currents of the different lines are not out of phase except in the case of single-phase
circuits.
9th. · High and low pressure switches should be installed in the cooling circuit and verify the refrigerant
charge (Refrigerant Charge section).
Performing the heat pump adjustments in its initial operation
1. Start filtering in order to circulate the swimming pool water inside the heat pump exchanger. It is
essential that the filtering equipment starts before the heat pump.
2. Switch the heat pump on. Turn on the magnetic circuit breaker. If purification is not programmed, the
heat pump will take readings to activate the purification pump if the system thermostat determines that
the water needs to be heated (Comfort).
3. Set the temperature you prefer (Description and operation of the controller).
4. The installing technician must adjust the valves of the by-pass according to the pressures of the
machine and must refrain from intervening anymore during the warming-up period.
The heat pump should always operate together with the purification pump. We must have the precaution never to
interconnect timers or programmers which may stop the purification pump and leave the unit working alone.
The heat pump will take several days to reach the requested temperature: This is completely normal.
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