Atlantic alfea extensa + - 6 Commissioning; 6.1 Configuring room thermostat (T55 ou T58)

- Close the installation's main circuit breaker.
On rst commissioning (or in winter), in order to
allow the compressor to pre-heat, engage the
installation'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 communication between the outdoor and
hydraulic unit will re-establish itself in a few
moments.
During the regulator initialisation phase, the display
shows all the symbols and then "Data, update" and then
"State heat pump".
- Make all the specic adjustments to the setting.
(Installation conguration):
- Press
OK
.
- Hold down the key
for 3s and select the level of
access used with the aid of the knob .
- Conrm with the key
OK
.
- Parameter the heat pump's setting
(Consult the settings' list page 51).
On commissioning (or the case of error 10), the electrical
back-up heaters are liable to 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.
To avoid this situation, the sensor must be connected
correctly. Re-initialise parameter 8703 (commissioning
level, consumer diagnostic menu).
6.1 Conguring room thermostat
To congure the room thermostat and connect it to the
appropriate heating zone:
- Hold down the presence key for more than 3 seconds.
The room thermostat displays RU and a number
ashes.
- Turn the wheel to choose the zone (1, 2).
- If the installation is tted with 2 room thermostats,
- First connect one room thermostat and congure it
in zone 2,
- Then connect the other room thermostat and
congure it as default in zone 1.
- Hold down the presence key; the room
thermostat displays P1 and a ashing number.
1: Automatic recording: a correction of the setting
with the button is adopted without any particular
conrmation (timeout) or by pressing the mode key.
2: Recording with conrmation: a correction of the
setting with the button is not adopted until the mode
key is pressed.
- Press the presence key again; the room thermostat
displays P2 and a ashing number.
0: OFF: all the operating elements are engaged.
1: ON: the following operating elements are locked:
- Switching over the heating circuit's operating
mode,
- Adjusting the comfort setting,
- Changing the operating level.
The room thermostat displays OFF for 3 seconds when
a locked button is pressed.
6 Commissioning
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 44 -
(T55 ou T58)