52
Monobloc Outdoor Unit Installation Manual
9.2.3 Parameter configuration
No.
Step
Parameter Description
Para
No.
Range
Default
Example
Set Up
1
DHW
Configuration
3-way diveter valve selection:
0 = No DHW management
1 = Diverting valve 2 –points – NO contact (valve energized in DHW position)
2 = Diverting valve 2 –points – NC contact (valve de-energized in DHW position)
3 = Not used
701
0~3
0
1
DHW cylinder sensor selection:
0 = DHW thermostat (thermal switch)
1 = DHW sensor (thermistor 10kΩ)
2 = DHW sensor (thermistor 5kΩ)
3 = DHW sensor (thermistor 3kΩ)
NOTE: If no sensor is selected (P719=0) the DHW request is always true and the
function of switching back to space heating / cooling is managed using timers)
719
1
0~3
0
1
2
If the internal pump = a variable speed pump then it is necessary to set the pump speed for DHW mode (only possible with adjustable
constant speed control logic)
The position of the 3 way diverting valve must be manually set to the DHW position before starting the DHW test
Pump Speed
Selection for
DHW Mode
Only
Quick test enable:
0 = Quick test control disabled
1 = Quick test control enabled
321
0~1
0
1
Water pump speed:
Adjusts the water pump speed to obtain the expected flow rate for DHW
production (%)
331
0~100
0
Depending on
DHW circuit
Water pump speed:
When the pump speed has been identified and the water flow rate is correct –
STOP the water pump (%)
331
0~100
0
0
Quick test enable:
0 = Quick test control disabled
1 = Quick test control enabled
321
0~1
0
0
Water pump speed:
Sets the pump speed identified during the “Quick Test” detailed above (%)
710
19~100
100
As determined
above (P331)
3
DHW Set-Point
DHS set-point normal operation:
Sets the DHW set-point for normal DHW production (°C)
406
30~60
50
55
DHW set-point – anti bacteria:
Sets the DHW set-point for the anti legionella cycle (°C)
405
50~60
60
60
4
DHW Cylinder
Heater Set Up
Customisation of digital output DO#9:
Allows the end user / installer to select the function of DO#9.
0 = Output disabled
10 = Electrical heat stage #2
11 = Electrical heat stage # 3
1~9 & 12 = No use
507
0~12
1
11
Booster heater configuration:
0 = No backup
5 = DHW back up (EH3)
6 = Boostered by 1 electric heater stage (EH1) + DHW back up (EH3)
7 = Boostered by 2 electric heater stages (EH1/EH2) + DHW back up (EH3)
8 = Boosterd by 3 electric heater stages with 2 outputs (EH1/EH2) + DHW back up
(EH3)
1~4 & 9 = No use for this configuration
601
0~9
0
5
Booster heater outside air threshold temperature:
Booster heating is allowed to run if OAT goes below this threshold (°C with 1 K
hysteresis).
604
-30~15
-7.0
2
5
DHW Schedule
Configuration
DHW schedule days:
Selects the days for system operation in DHW mode:
Mon / Tue / Wed / Thu / Fri / Sat / Sun
711
Yes / No
Yes
Yes
DHW starting time:
Selects the START time for DHW mode (hh:mm)
712
00:00 ~
23:59
21:00
07:00
DHW stopping time:
Selects the STOP time for DHW mode (hh:mm)
713
00:00 ~
23:59
06:00
22:00
6
Anti legionella
schedule
Configuration
Anti-legionella start day:
Selects the days for operation of the anti-legionella control:
Mon / Tue / Wed / Thu / Fri / Sat / Sun
714
Yes / No
No
No
Anti-bacteria start time:
Selects the START time for the anti-legionella control (hh:mm)
715
00:00 ~
23:59
02:00
05:00
Note 1 = For ESTIA DHW cylinder set P719 = 1
