Hydraulic Connections; Start-Up Procedure - Astralpool PROHEAT II Serie Manual De Instrucciones

PROHEAT II SERIES · HEAT PUMP AIR/WATER SYSTEM
10.

HYDRAULIC CONNECTIONS

The heat pump should be connected to a by-pass prepared for that purpose at the exit of the
water treatment system and always before any chemical dosing system. If the intake of the
dosing system is less than 25 cm under the heat pump water outlet, a syphon should be installed.
A no-return valve should be installed as an additional safety measure to prevent the return of
chemical products to the pump when water circulation is interrupted.
The equipment should never be run without water circulating through the hydraulic system.
Do not place concentrated chemical products in the pool skimmers.
Always respect the hydraulic connection diameters specified for each machine.
A full-flow shut-off valve should be installed on each of the hydraulic elements in the equipment,
so that each of these may be isolated if needed (filter cleaning, repairs, replacements, etc.)
without the need to drain the circuit.
Anti-vibration dampers should be installed in the inlet and outlet of the machine, in order to
avoid vibrations which may cause cracks or breakage in the hydraulic connections.
Do not force the PVC pipes when connecting the equipment to the hydraulic network. This will
prevent them from breaking or cracking.
11.

START-UP PROCEDURE

When setting-up, the electrical connections, as well as the general power supply and voltage
should be verified
• Check that the hydraulics are connected properly.
• Give power to the equipment by connecting the general power switch on the outside of
the unit. Once the unit is connected, verify the current absorbed by the phases.
• It is important to note that the equipment comes with a standard crankcase heater and
should be under voltage for at least 1 hour before start-up so the oil in the compressor
can reach its ideal condition to lubricate the compressor components.
• Three phase machines are equipped with a phase control relay that ensures that the
compressor rotates in the right direction. Alarm in the regulator.
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.
Check that there are no gaps between currents in the various lines, except those caused
•
by single phase circuits.
• High and low pressure switches should be installed in the cooling circuit and verify the
refrigerant charge (Refrigerant Charge section).
• Disconnect the ON/OFF switch to stop the equipment.
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