7 Quick-start procedure
Before switching on the hydraulic unit :
• Check the electric wiring.
• Check the refrigeration circuit and make sure the gas
supply has been performed.
• Check the pressure of the hydraulic circuit (1-2 bar),
check that the heat pump is purged, and the rest of the
installation.
7.1 Start-up check-list
7.1.1 Before starting-up
• Sight checks
Outdoor unit (please refer to section "Installation of the outdoor unit" page 12). OK Non compliant
Location and ttings, condensate evacuation.
Compliance with distances from obstacles.
• Hydraulic checks
Hydraulic unit (please refer to section "Installing the hydraulic unit" page 15). OK Non compliant Value
Connection of pipes, valves and pumps (circuits, DHW).
Installation water volume (expansion vessel of adequate capacity ?).
No leaks.
Main system pressure and degassing.
• Refrigeration connections and checks
(please refer to section "Refrigeration connections" page 16 et "Filling the installation with gas" page 19). OK Non compliant
Connections between units (pipe length, are tightening torque...).
Installation of HP, LP pressure switches on liquid line (small pipe).
Pump down required.
Nitrogen leak test (~ 25 bar).
Refrigerant lling of hydraulic unit and pipes.
Opening of refrigeration valves to outdoor unit.
• Electrical checks
Outdoor unit (please refer to section "Electrical connections" page 22). OK Non compliant Value
Main power supply 230v .
Protection by rated circuit breaker.
Cable section.
Earth connection.
Hydraulic unit (please refer to section "Electrical connections on the hydraulic unit side" page 25). OK Non compliant
Connection with outdoor unit (L, N + Eath).
Sensors connection (positioning and connections).
3 way valve and circulators connections.
Power supply and protection of electric auxiliary (option).
Installation and operation manual "1397 - EN"
Heat pump split single service alféa Evolution
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