Panasonic WH-MXC09J3E8 Service Manual page 89

13.1.4 Target Water Temperature Setting
13.1.4.1 Target Water Temperature Control of Standard System (Optional PCB not
connected)
There are 2 types of temperature control selection which are Compensation and Direct.

Temperature control type selection by installer:
1 Compensation : WLo, WHi, ODLo, ODHi can be set at installer menu.
2 Direct

Remote control setting by user:
1 Compensation : Shift value ±5°C from the compensation curve
2 Direct
*This setting is only able to set when the room sensor select as Water Temperature.
*Instead of water temperature, user will set target room temperature when room sensor select as Room Thermistor
OR Internal Room Thermostat.

Target water temperature is calculated as below condition.
Target water temperature = A (Base temperature) + B (shift temperature)
o
A (Base Temperature)
B (shift temperature) value is depend on the room sensor selection at remote controller as below table:
o
B (Shift Temp.)
Water temperature
External Room thermostat
Internal Room Thermostat &
Room Thermistor

Maximum/minimum regulation of Target Water Temperature.
1
* Between outdoor ambient -15°C and -20°C, the water outlet temperature gradually decreases from 60°C to 55°C.
* 1 Between outdoor ambient 5°C and 0°C, the water outlet temperature gradually decreases from 65°C to 60°C.
1
* Between outdoor ambient 20°C and 25°C, the water outlet temperature gradually decreases from 65°C to 60°C.
* 2 Only when ΔT is set to 15°C, the set temperature above 60°C will take effect.
: Direct Water Temperature Set
: Direct water temperature set change
Compensation
Value from the curve + User shift value set
B shift value depend on the room sensor selection at remocon as table below
B = 0
B = 0
Cool Mode:
B = 0 ; when Zone OFF or Zone Room Thermo OFF
B = 1* (room set temp (R/C) - actual room temp)
Max/Min Regulation of B: (Max = 5 ; Min = -5)
Heat Mode:
B = 0 ; when Zone OFF or Zone Room Thermo OFF
B = follow Heating PI control contents
Max 60 (Ambient -15 ~ 0°C or Above Ambient 25°C) *
Min
Sensor selection
Heating
1
55 (Below Ambient -20°C) *
65 (Ambient 5 ~ 20°C) * 1 * 2
20°C
89
Direct
Direct value from user setting
Cooling
1
20°C
5°C