Quick-Start Procedure; Start-Up Check-List; Before Starting-Up - Fujitsu Waterstage WOYA060LFCA Installation And Operating Manual

Air to Water Heat Pump, split system

13 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 DIPSW on the interface card are
OFF before starting up.

13 .1 Start-up check-list

13 .1 .1 Before starting-up

• Sight checks
Outdoor unit (see chapiter "Installation of the outdoor unit", page
Location and fittings, condensate evacuation.
Compliance with distances from obstacles.
• Hydraulic checks
Hydraulic unit (see chapiter
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.
• Refrigeration connections and checks
(see chapiters "Refrigerant gas connection
and filling the installation with gas", page 19
Refrigerant circuits control (Sealing respected, no dust and moisture).
Connections between units (pipe length, flare tightening torque...).
Installation of HP, LP pressure switches on "Gas" line (large pipe).
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 chapiter "Electrical connections", page
Main power supply 230 V.
Protection by rated circuit breaker.
Cable cross-section.
Earth connection.
Hydraulic unit (see chapiter "Electrical connections
on the hydraulic unit side", page
Connection with outdoor unit (phase, neutral, earth).
Sensors connection (positioning and connections).
3 way valve and circulators connections.
Power supply and protection of electric auxiliary.
- 80 -
"Installing the hydraulic unit", page
& "Filling the installation with gas", page
36).
40).
15).
18).
24).
Installation and operation manual "1764 - EN"
OK Non compliant
OK Non compliant Value
OK Non compliant
OK Non compliant Value
OK Non compliant