Panasonic WH-SDC03H3E5 Service Manual page 87

12.1.6 Target Zone Water Temperature Control
Purpose:- To control zone mixing and zone pump according to the zone sensor temperature
12.1.6.1 Target Zone 1 water temperature setting control

Start condition
Heating zone 1 is ON by remote control or Timer or Auto Mode OR
-
Cooling zone 1 is ON by remote control or Timer or Auto Mode.
-

Cancel condition
Heating zone 1 is OFF by remote control or Timer or Auto mode AND
-
Cooling zone 1 is OFF by remote control or Timer or Auto mode.
-

Target Zone 1 water temperature is calculated as below condition.
Target Zone 1 water temperature = A (Base temperature) + B (shift temperature)
-
A (Base Temperature)
* During heat mode and compensation select, if powerful mode is activated, higher value of WLo or WHi will be use
as curve value.
B (shift temperature) value is depend on the room sensor selection at remote controller as below table:
-
Water temperature
External Room thermostat
Internal Room thermostat
Room thermistor
Pool function selected
*B = 0 regardless of which sensor selection, if SHP control bit is enable except Pool function select (maintain Pool "B"
value)
** Pool function also can be select at Zone 1 when optional PCB is connected and Zone 1 system is select.

Maximum/minimum regulation of Target Water Temperature.

Target Zone 1 Water Temperature (Heat mode only) during SG ready control
If buffer tank selection is "NO" then following shift is carried out.
-
While digital input is "10" or "11" then,
o
Final Target Zone 1 water temperature
= Target Zone 1 water temperature* (SG ready % setting (remote control menu))%
If buffer tank selection is "YES"
-
No shift of Target Zone 1 Water Temperature. Target Buffer Tank Temperature will change accordingly.
o
* Refer to "Buffer tank temperature control"
Compensation
Value from the curve + User shift value set
Sensor selection
B = 0
B = 0
B = 1 (room set temperature R/C - actual room temperature)
max/min regulation of B: Max = 5°C Min = -5°C
B = Delta value setting from remote control
Heating
Max 55°C
Min 20°C
Direct value from user setting
Cooling
20°C
5°C
87
Direct