Panasonic 140 Installation And Maintenance Manual page 31

13.4.6. Water law
The confi guration of the different water law settings dynamically matches the setpoint according to the outside temperature.
The different parameters below for the water law can be set in the installation menu and by a GTC.
Compensation is enabled or disabled via the fi rst line of the weather compensation menu. If compensation is enabled, weather
compensation will include the data confi gured in the "Weather compensation" menu.
If the automatic heat/cool changeover mode is selected, weather compensation is enabled by default. The
CAUTION
default weather compensation values are applied without using the weather compensation menu settings.
13.4.7. Cool mode
The water law introduces correction D which depends on the OAT outside temperature:
• water law setpoint = cool mode temperature setpoint + Δ(OAT)
•
Correction Δ is restricted between 0 and 8K. It is defi ned by points A and B in the graph below. The values indicated are
factory values.
(K)
A
6
0
10
Points Coordinates
OAT
A
Delta
OAT
B
Delta
Main Menu Main Menu 1/4 1/4
Status Status
Commissioning Commissioning
Services
Access
B
OAT (°C)
30
Unit Min. Max. Default
°C 10 30
K Δ 8
B
20 36
°C
0 D
K
A
✔
Commissioning Commissioning 1/12 1/12
03.02.2016 03.02.2016 10:40:05 10:40:05
Language selection Language selection
Communications Communications
Glycol protection Glycol protection
Auto change over Auto change over
✔
Water Law Water Law
Reduced mode
Limited capacity
Cold OAT protection
Small volume protection
Calendar
Versions
Water Law Water Law
Compensation Compensation
------------------------------ ------------------------------
Cooling mode Cooling mode
-Point A : OAT -Point A : OAT
-Point A : Delta -Point A : Delta
-Point B : OAT -Point B : OAT
-Point B : Delta -Point B : Delta
------------------------------
Heating mode
-Point A : OAT
-Point A : f
-Point B : OAT
-Point B : f
-Point C : OAT
-Point C : f
10
6
30
0
31
Water Law Water Law 1/15 1/15
✔
Compensation Compensation Disable Disable
------------------------------ --------
Cooling mode
Disable
-Point A : OAT 10,0°C
-Point A : Delta 6,0dK Enable
-Point B : OAT 30,0°C
-Point B : Delta 0,0dK
------------------------------ --------
Heating mode
-Point A : OAT 0,0°C
-Point A : f 45,0 °C
-Point B : OAT 10,0 °C
-Point B : f 40,0 °C
-Point C : OAT 15,0 °C
-Point C : f 35,0 °C
1/15 1/15
Disable Disable
-------- --------
10,0°C 10,0°C
6,0dK 6,0dK
30,0°C 30,0°C
0,0dK 0,0dK
--------
0,0°C
45,0 °C
10,0 °C
40,0 °C
15,0 °C
35,0 °C
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