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.
• Make sure that ALL DIP SW are OFF before starting
up. (figure
23 page 20
).
7.1 Start-up check-list
7.1.1 Before starting-up
• Sight checks
Outdoor unit (see chapiter "Installation of the outdoor unit"
page 12
)
OK
Non compliant
Location and fittings, condensate evacuation.
Compliance with distances from obstacles.
• Hydraulic checks
Hydraulic unit (see chapiter "Installing the hydraulic unit"
page 15
)
OK
Non compliant
Value
Connection of pipes, valves and pumps (1 or 2 circuits, DHW).
Installation water volume (expansion vessel of adequate capacity ?).
No leaks.
Main system pressure and degassing (0,3bar > expansion vessel pre-loading).
• Refrigeration connections and checks
(see chapiters "Refrigeration connections"
page 16
and "filling the installation with gas"
page 19
)
OK
Non compliant
Connections between units (pipe length, flare tightening torque...).
Installation of HP, LP pressure switches on liquid line (small pipe).
Pump down required.
Nitrogen leak test (~ 25 bar).
Refrigerant filling of hydraulic unit and pipes.
Opening of refrigeration valves to outdoor unit.
• Electrical checks
Outdoor unit (see chapiter "Electrical connections"
page 22
)
OK
Non compliant
Value
Main power supply 400v .
Protection by rated circuit breaker.
Cable cross-section.
Earth connection.
Hydraulic unit (see chapiter "Electrical connections on the hydraulic unit side"
page 25
)
OK
Non compliant
Connection with outdoor unit (3 + Eath).
Sensors connection (positioning and connections).
3 way valve and circulators connections.
Power supply and protection of electric auxiliary.
Installation and operating manual "1363 - EN"
- 55 -
Heat pump alféa S excellia 3-phase
