Fujitsu Super High Power Series Design & Technical Manual page 117

¢ Start-up
• Make sure that all DIP switches on the interface card are off before starting up.
DIP switches should be set off for normal operation. Power supply to the hydraulic indoor unit
must be turned off while touching DIP switches.
• Close the installation's main circuit breaker.
On the first commissioning (or in winter), to allow the compressor to pre-heat, engage the installa-
tion's main circuit breaker (power supply to the outdoor unit) some hours before starting up the
tests.
• Engage the start/stop switch.
To ensure that inputs EX1, EX2, and EX3 operate correctly, check that the live-neutral polarity of
the electrical supply is correct.
When the power is switched on and every time that the ON/OFF button is switched off and then
switched on again, the outdoor unit will take approximately 4 minutes to start up, even if the setting
is requesting heating.
The display can show error 370 when the appliance (re)starts. Do not be concerned, the communi-
cation between the outdoor unit and the hydraulic indoor unit will reestablish itself in a few months.
During the regulator initialization phase, the display shows all the symbols and then "Data update"
and then "State heat pump".
• Make all the specific adjustments to the setting (configuring the installation).
OK
• Press the key
• Hold down the key
• Confirm with the key
Parameter the heat pump's setting (Refer to
On commissioning (or the case of error 10), the electrical backup heaters may start up even if the
outdoor temperature at the time is above the heaters' trigger temperature.
The regulating system uses an average initial outdoor temperature of 0°C and requires some time to
update this temperature.
NOTE: To avoid this situation, the sensor must be connected correctly.
Reinitialize line 8703 (commissioning level, consumer diagnosis menu)
4-3. Connections to the heat pump regulator (Accessories and Options)
.
for 3 seconds and select the access level used with the aid of the knob
OK
.
"Function table" on page 03-7.
- (03-73) -
.
4. Electrical connections