27
GB 05/2009
AW HT
OEM LEVEL (WITH PASSWORD)
The procedure shown below is used by authorised person-
nel to access the operating pages and set the correspond-
ing group of parameters.
1. Main display.
If the main display is not shown, press ESC.
2. Press OK .
The operating pages are shown at the bottom of the dis-
play.
3. Press the info button for 3 seconds.
The operating pages corresponding to the access level
are shown at the bottom of the display.
4. Turn the knob and select the operating page correspond-
ing to the OEM level, “Authorised Technician”.
5. Press OK to confirm.
The password contains numbers.
Turn the knob to set the value of the first number and
confirm by pressing OK.
Proceed in the same way for the following numbers.
At the end the operating pages corresponding to the
“OEM” level will be displayed.
AUTO
0
4
8
12
16
20
24
Room temperature
Time of day and date
0
4
8
12
16
20
24
AUTO
Operator section
PROG
No.
Operating page
0
4
8
12
16
20
24
AUTO
Code
00000
0
4
8
12
16
20
24
PROG
Enduser
Commissioning
No.
0
4
8
12
16
20
24
AUTO
PROG
Engineer
OEM
No.
TEMPERATURE CONTROL
The water outlet temperature to the heating circuit is calcu-
lated by the controller based on the following factors:
• slope of the heating curve (see paragraph)
• comfort set point in relation to the room temperature (see
the corresponding paragraph)
• reduced set point in relation to the room temperature (see
the corresponding paragraph)
• influence of the room temperature (see the corresponding
paragraph)
• minimum and maximum limit outlet temperature set point
(see the corresponding paragraph)
To display the calculated outlet temperature set point press
the info button
, and turn the knob until displaying “Flow
temp setpoint 1”.
COMPRESSOR START UP DELAY
To prevent the compressor from starting up too frequently
the minimum time since last shut-down is 5 minutes.
CIRCULATING PUMP
The electronic board has an output for managing the circu-
lating pump. The circulating pump is stopped, after a few
minutes, when reaching the room set point plus 0.5°C.
After the first few seconds of pump operation when the
water flow is at full speed, the water flow alarm functions are
activated (flow switch).
In protection mode
the circulating pump is off.
CONTROL AND OPERATING CHARACTERISTICS
A
