8 Start-up procedure
Before switching on the hydraulic unit:
• Check the electrical wiring.
• Check the gas supply to the refrigerating circuit.
• Check the pressure in the hydraulic circuit (1 to 2
bars), check that the PAC is drained, as well as the
rest of the installation.
8 .1 Start-up check-list
8 .1 .1 Before starting-up
•
Sight checks
outdoor unit (see chapter "Installation de the outdoor unit"
§
).
OK
Non conforming
Location and fittings, condensate evacuation.
Compliance with distances from obstacles.
•
Hydraulic checks
Hydraulic module (see chapter "Installation of Hydraulic module"
§
OK
Non conforming
Value
connections of the pipes, valves and pumps (heating circuit, SHW).
Installation water volume (expansion vessel of adequate capacity ?).
No leaks.
Primary system and degassing pressure.
•
Refrigeration connections and checks
(see chapters "refrigerating connections" and "Connecting gas supply to the installation"
§
).
OK
Non conforming
Checking the refrigerating circuits (sealing respected, no dust or humidity)
Connections between units (pipe length, flare tightening torque...).
Installation of HP pressure gauges on gas line (large tube).
Pump down required.
Nitrogen leak test (~ 10 bar).
Opening of refrigeration valves to outdoor unit.
Refrigerant filling of hydraulic unit and pipes.
•
Electrical checks
outdoor unit (see chapter "electrical connections"
).
OK
Non conforming
Value
Mains power supply (230v ou 400v).
Protection by rated circuit breaker.
Cross section of cable.
Earth connection
Hydraulic module (see chapter "electrical connections on Hydraulic module side"
OK
Non conforming
connection with the outdoor unit (L, N, Eartch or 3 L + Earth).
Sensors connection (positioning and connections).
connection of directional valves (measure and SHW) and circulator.
Supply and protection of the electrical power option).
• Ensure that all of the DIP SW on the interface board
are in the OFF position before starting.
Installation and operating manual
"
1605 - EN
"
alfea hybrid duo heat pump oil low NOx CH
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