Panasonic WH-UD05JE5 Service Manual page 129

Air-to-water hydromodule + tank
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14.1.4 Target Water Temperature Setting
14.1.4.1
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
2
Direct
Remote control setting by user:
1
Compensation
2
Direct
*This setting only able to set when 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
Max
Min
* Between outdoor ambient -10°C and -15°C, the water outlet temperature gradually decreases from 60°C to 55°C
Compensation Type: (Operation under Heat Mode and Cool Mode)
The set temperature defines the parameters for the ambient (Outdoor temperature) dependent operation of the
unit. The water temperature is determined automatically depending on the outdoor temperature. Default setting is
the colder outdoor temperature will result in warmer water and vice versa. The user has the possibility to shift up
and shift down the target water by remote control setting.
: Wlo, WHi, ODLo, ODHi can be set at installer menu.
: Direct Water Temperature Set
: Shift value ±5°C from the compensation curve
: 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 = 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 Room Temperature PI control logic
Heating
55°C / 60°C*
20°C
OD
(LO)
OD
(HI)
W
A
(LO)
W
(HI)
W
(LO)
W
(HI)
Sensor selection
Cooling
20°C
5°C
= Setting Of LOW Outdoor Ambient Temperature.
= Setting Of HIGH Outdoor Ambient Temperature.
= Setting Of Water Temperature at LOW OD Ambient.
= Setting Of Water Temperature at HIGH OD Ambient.
OD
OD
(LO)
(HI)
129
Direct
Direct value from user setting
Outdoor
Ambient

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