Quick-Start Procedure; Start-Up; Start-Up Check-List; Defore Starting-Up - Fujitsu 112 Installation And Operating Manual

Heat pump split single service 3 phase

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

- Turn ON the start/stop switch.
- Configure the hydraulic circuit (setting 5700) :
Presettings :
1. 1 heating circuit (by default).
2. 1 heating circuit and DHW tank.
3. 2 heating circuits.
4. 2 heating circuitsand DHW tank.
5. Boiler backup and 1 heating circuit.
6. Boiler backup and 2 heating circuits.
7. Boiler backup, 1 heating circuit
and DHW tank.
8. Boiler backup, 2 heating circuits
and DHW tank.
7 2

Start-up check-list

7 2 1 Defore starting-up

• Sight checks
Outdoor unite (see chapiter "Installation of the outdoor unit"
Location and fittings, condensate evacuation.
Compliance with distances from obstacles.
• Hydraulic checks
Hydraulic unit (see chapiter "Installing the hydraulic unit"
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"
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.
Installation and operating manual "1364 - EN"
page 12)
page 15)
page 16 and "filling the installation with gas"
- Time, Date and time programs for HC1, HC2, DHW if
different than default values (settings 500 – 576).
- Ajust the heating curve slope (720; 1020) and curve
off-set (721; 1021).
The heat pump is ready for operation !
You can also :
1. Adjust the heating circuit setpoints if different
than default values (710 – 714; 1010-1014).
2. Adjust the DHW setpoints if different than
default values (1610-1612)
3. Start a legionella cycle (1640-1647).
4. Perform floor drying (850-857).
page 19)
OK Non compliant
OK Non compliant Value
OK Non compliant
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