Panasonic WH-SDC03H3E5-1 / WH-SDC05H3E5-1 / WH-SDC07H3E5-1 / WH-SDC09H3E5-1 / WH-UD03HE5-1 / WH-UD05HE5-1 / WH-UD07HE5-1 / WH-UD09HE5-1 Simplified Service Manual ▷ View online
121
12.17.2 Solar Operation Control
Solar function can only be activate if the solar function selection “YES” from remote control. To achieve hot water
from solar panel, indoor need to control the solar pump and circulate hot water from solar panel.
Under normal case:
o Solar pump start condition:
o Solar pump start condition:
Solar panel temperature > Delta T turn on setting temp (R/C) + Tank temperature (depend on selection,
DHW or Buffer) AND
Tank temperature (DHW or Buffer) < Solar HI Limit Temp (R/C) AND
Operation ON with heat mode (apply to solar connect to "Buffer Tank" case)
* Condition c) ignore if the solar system is connect to DHW tank (control active under operation OFF time for
Tank connection case)
Tank connection case)
o Solar pump stop condition:
Solar panel temperature < Delta T turn OFF setting temp (R/C) + Tank temperature (depend on selection,
DHW or Buffer) OR
Tank hot water temp >= Solar HI Limit Temp (R/C) + [2]°C
Under solar Anti-freeze protection control:
o Solar pump start condition:
Outdoor temp < Outdoor temp setting for Anti-Freeze (R/C)
o Solar pump stop condition:
Outdoor temp > Outdoor temp setting for Anti-Freeze + [2]°C
**However, During Cool mode this function cannot activate if Tank selection is “Buffer Tank".
**Solar pump can operate even if Heat pump is under error stop.
**Solar pump can operate even if Heat pump is under error stop.
Solar operation during error:
o During Tank sensor (DHW or Buffer depend on selection) abnormal, Solar operation will not able to function.
o During Solar Panel sensor detect OPEN (not include SHORT), Solar operation will not able to function too.
o During Solar Panel sensor detect OPEN (not include SHORT), Solar operation will not able to function too.
12.18 Boiler Bivalent Control
Boiler is an additional or alternative heat source to heat up the room when necessary.
Purpose of this control is to turn ON and turn OFF the Boiler output signal when boiler heating capacity needed in
the system.
Boiler is possible to connect to DHW Tank and Buffer Tank depends on the installer.
Boiler operation parameter need to be set on Boiler itself, indoor do not control the boiler operation direction and
operation.
There are Alternative mode, Parallel mode, & Advance Parallel mode available to select by installer to fit to the
total system.
Bivalent control selection by remote controller
Remote control setting value:
1 Outdoor Ambient Set = (Range: -15°C ~ 15°C)
Alternative Mode
o Only one heat source operates at one time, either heat pump or boiler depends on condition.
Control detail:
During Operation ON at Heat mode or Tank mode or Heat + Tank Mode
o Boiler signal turn ON and heat pump and water pump turn OFF when:
Outdoor ambient < Outdoor Ambient Set AND
Boiler prohibit flag = 0
** However indoor water pump can operate when Anti-freeze control condition fulfilled.
o Boiler signal turn OFF and heat pump and water pump turn ON when:
Outdoor ambient > Outdoor Ambient Set + [2°C] OR
Boiler prohibit flag = 1
122
Parallel Mode
o Parallel mode allows heat pump and boiler ON at the same time. Boiler operates as an additional heating
capacity when low heat pump capacity at low ambient condition.
Control detail:
During operation ON at Heat mode or Tank mode or Heat + Tank mode
o Boiler signal turns ON when:
Outdoor ambient < Outdoor Ambient Set AND
Boiler prohibit flag = 0
o Boiler signal turns OFF when:
Outdoor ambient > Outdoor Ambient Set + [2°C] OR
Boiler prohibit flag = 1
Advance Parallel Mode
o Advance parallel mode allow heat pump to operate and turn ON boiler only when ambient and temperature
condition is fulfilled.
Remote control setting value:
1 Outdoor Ambient Set = (Range : -15°C ~ 15°C)
2 Selection of boiler connection direction. (Heat only, DHW only, Heat & DHW)
3 Setting data under Heat Direction
o Start Temperature | START_TEMP |
o Start Delay Timer | START_TIMER |
o Stop Temperature | STOP_TEMP |
o Stop Delay Timer | STOP_TIMER |
o Start Delay Timer | START_TIMER |
o Stop Temperature | STOP_TEMP |
o Stop Delay Timer | STOP_TIMER |
4 Setting data under DHW Direction
o Delay Timer
| DELAY_TIMER |
Control detail:
During operation ON at Heat Mode
o Boiler signal turns ON when
During operation ON at Heat Mode
o Boiler signal turns ON when
Outdoor ambient < Outdoor Ambient Set AND
Buffer tank temperature < Target Buffer Tank Temperature + [START_TEMP] for [START_TIMER] AND
Heat pump operate at room side AND
Connection of Boiler to Heating Select "YES" From installer menu AND
Buffer Tank connection select "YES" AND
Boiler prohibit flag = 0
o Boiler signal turns OFF when
Outdoor ambient > Outdoor Ambient Set + [-2°C] OR
Buffer Tank temperature > Target Buffer Tank temperature + [STOP_TEMP] for [STOP_TIMER] OR
Heat pump not at room side. OR]
Boiler prohibit flag = 1
During operation ON at Tank Mode
o Boiler signal turns ON when
o Boiler signal turns ON when
Outdoor ambient < Outdoor Ambient Set AND
Heat pump operate at tank side for continuous | DELAY_TIMER | AND
Connection of Boiler to DWH Tank select "YES" from installer menu. AND
Boiler prohibit flag = 0
o Boiler signal turns OFF when
Outdoor ambient > Outdoor Ambient Set + [2°C] OR
Heat pump not operates at tank side. OR
Boiler prohibit flag = 1
Boiler prohibit flag control
Purpose:
o For product safety. Boiler signal is OFF when water temperature is too high.
123
Start condition:
o Water
o Water
outlet
≥ 85°C continues for 5 minutes.
o Water
inlet
≥ 85°C continues for 5 minutes.
o Zone1
water
temp
≥ 75°C continues for 5 minutes.
o Zone2
Water
temp
≥ 75°C continues for 5 minutes.
Contents:
After start condition fulfilled, set boiler prohibit flag = 1
Cancel condition:
o After 30 minutes from start condition fulfilled.
o After 30 minutes from start condition fulfilled.
Contents:
Set boiler prohibit flag = 0
12.19 External Room Thermostat Control (Optional)
Purpose:
1 Better room temperature control to fulfill different temperature request by external room thermostat.
Recommended external room thermostat:
Maker Characteristic
Siemen (REV200)
Touch panel
Siemen (RAA20)
Analog
Connection of external room thermostat:
Wire Connection and thermo characteristic of Siemen REV200:
Wire Connection and thermo characteristic of Siemen REV200:
Setting
L/L1 (H)
Heat Thermo
L/L2 (C)
Cool Thermo
Set Temp < Actual Temp
Open Circuit OFF Short
Circuit ON
Set Temp > Actual Temp
Short Circuit
ON
Open Circuit
OFF
Cooling
Heating
Siemen REV200
Connect only heating line for heating only model. And connect both
heating and cooling line for heat + cool model.
heating and cooling line for heat + cool model.
Indoor Unit
9
L (label)
10
11
12
L1 (label)
L2 (label)
9 : Terminal Bord No.
Wire Connection and thermo characteristic of Siemen RAA20:
Setting
L/Y1
(H) Heat
Thermo L/Y2
(C) Cool
Thermo
Set Temp < Actual Temp
Open Circuit OFF Short
Circuit ON
Set Temp > Actual Temp
Short Circuit
ON
Open Circuit
OFF
Cooling
Heating
Siemen RAA20
Connect only heating line for heating only model. And connect both
heating and cooling line for heat + cool model.
heating and cooling line for heat + cool model.
Indoor Unit
9
L (label)
10
11
12
Y1 (label)
Y2 (label)
9 : Terminal Bord No.
124
Control Content:
External room thermostat control activate only when remote thermostat connection select YES by Indoor control
panel.
When indoor running heat mode, refer thermo On/Off from heating line feedback. And when indoor running cool
mode, refer thermo On/Off from cooling line feedback.
Heat pump Off immediately when receive thermo off feedback.
12.20 Three Ways Valve Control
Purpose:
- 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side.
Control contents:
1 3 ways valve switch Off:
o
During 3 ways valve switch Off time, the hot water will provide heat capacity to heating side.
2 3 ways valve switch On:
o
During 3 ways valve switch On time, the hot water will provide heat capacity to tank side.
3 Stop
condition:
o
During stop mode, 3 ways valve will be in switch off position.
L
N2
Indoor Unit
N1
Spring Return 2 point
SPDT 3 wire
3
5
5
M
L
1
N1
3
N2
COM
Open
Close
5
6: Terminal Board No.
M
L
NC
1
N1
3
N2
5
M
L
NO
1
N1
3
N2
5
1
AC230V
* During pump down and force mode, fix 3 ways valve in close condition.
* Recommended Parts : SFA 21/18 (Siemens)
12.21 Two Ways Valve Control
Functionality of 2 ways valve:
Use to allow hot water to floor heating panel or block cold water to floor heating panel.
Control contents:
1 When indoor running in heat mode, OPEN the 2 ways valve.
2 When indoor running in cool mode, CLOSE the 2 ways valve.
3 Stop
2 When indoor running in cool mode, CLOSE the 2 ways valve.
3 Stop
condition:
a.
During stop mode, fix 2 ways valve in close condition.
L
N2
Indoor Unit
N1
Spring Return 2 point
SPDT 3 wire
3
5
5
M
L
1
N1
3
N2
COM
Open
Close
5
3: Terminal Board No.
M
L
NC
1
N1
3
N2
5
M
L
NO
1
N1
3
N2
5
1
AC230V
* During pump down mode, fix 2 ways valve in close condition.
* During force mode, open 2 ways valve.
* During force mode, open 2 ways valve.
* Recommended Parts : SFA 21/18 (Siemens)
Click on the first or last page to see other WH-SDC03H3E5-1 / WH-SDC05H3E5-1 / WH-SDC07H3E5-1 / WH-SDC09H3E5-1 / WH-UD03HE5-1 / WH-UD05HE5-1 / WH-UD07HE5-1 / WH-UD09HE5-1 service manuals if exist.