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
73
11.2.2 Introduce applications of system that uses optional equipment.
DHW (Domestic Hot Water) Tank connection
Outdoor
Tank
Tank thermistor
3-way valve for tank
Booster heater
Indoor
Floor heating
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Tank connection - Yes
This is an application that connects the DHW tank to the indoor unit through 3-way valve.
DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Tank + Solar connection
DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Tank + Solar connection
Indoor
Outdoor
Tank
Tank thermistor
3-way valve for tank
Solar pump
Floor heating
Solar thermistor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Tank connection - Yes
Solar connection - Yes
DHW tank
T turn ON
T turn OFF
T turn OFF
Antifreeze
Hi limit
Hi limit
This is an application that connects the DHW tank to the indoor unit through 3-way valve before connect the solar
water heater to heat up the tank. DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
DHW tank shall use tank with built-in solar heat exchange coil independently.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
This system requires optional PCB (CZ-NS4P).
Buffer tank connection
water heater to heat up the tank. DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
DHW tank shall use tank with built-in solar heat exchange coil independently.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
This system requires optional PCB (CZ-NS4P).
Buffer tank connection
Outdoor
Thermistor 1
Buffer tank
Pump 1
Indoor
Floor heating
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
This is an application that connects the buffer tank to the indoor unit.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
This system requires optional PCB (CZ-NS4P).
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
This system requires optional PCB (CZ-NS4P).
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Buffer tank + Solar
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
Solar connection - Yes
Buffer tank
T turn ON
T turn OFF
T turn OFF
Antifreeze
Hi limit
Hi limit
Solar thermistor
Thermistor 1
Solar pump
Mixing valve 1
Floor heating
Pump 1
Buffer tank
Outdoor
Indoor
This is an application that connects the buffer tank to the indoor unit before connecting to the solar water heater to
heat up the tank.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
Buffer tank shall use tank with built-in solar heat exchange coil independently.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
This system requires optional PCB (CZ-NS4P).
Boiler connection
heat up the tank.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
Buffer tank shall use tank with built-in solar heat exchange coil independently.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
This system requires optional PCB (CZ-NS4P).
Boiler connection
Thermistor 1
Boiler
Mixing
valve 1
Floor heating
Pump 1
Buffer tank
Outdoor
Indoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Bivalent - Yes
Turn ON: outdoor temp
Control pattern
Control pattern
This is an application that connects the boiler to the indoor unit, to compensate for insufficient capacity by operate
boiler when outdoor temperature drops & heat pump capacity is insufficient.
Boiler is connected parallel with heat pump against heating circuit.
There are 3 modes selectable by remote controller for boiler connection.
Besides that, an application that connects to the DHW tank’s circuit to heat up tank’s hot water is also possible.
(Operation setting of boiler shall be responsible by installer.)
This system requires optional PCB (CZ-NS4P).
Depending on the settings of the boiler, it is recommended to install buffer tank as temperature of circulating water
may get higher. (It must connect to buffer tank especially when selecting Advanced Parallel setting.)
boiler when outdoor temperature drops & heat pump capacity is insufficient.
Boiler is connected parallel with heat pump against heating circuit.
There are 3 modes selectable by remote controller for boiler connection.
Besides that, an application that connects to the DHW tank’s circuit to heat up tank’s hot water is also possible.
(Operation setting of boiler shall be responsible by installer.)
This system requires optional PCB (CZ-NS4P).
Depending on the settings of the boiler, it is recommended to install buffer tank as temperature of circulating water
may get higher. (It must connect to buffer tank especially when selecting Advanced Parallel setting.)
WARNING
Panasonic is NOT responsible for incorrect or unsafe situation of the boiler system.
CAUTION
Make sure the boiler and its integration in the system complies with applicable legislation.
Make sure the return water temperature from the heating circuit to the indoor unit does NOT exceed 55°C.
Boiler is turned off by safety control when the water temperature of the heating circuit exceed 85°C.
Make sure the return water temperature from the heating circuit to the indoor unit does NOT exceed 55°C.
Boiler is turned off by safety control when the water temperature of the heating circuit exceed 85°C.
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11.2.3 How To Fix Cable
11.2.3.1 Connecting with external
device (optional)
All connections shall follow to the local national
wiring standard.
It is strongly recommended to use manufacturer-
recommended parts and accessories for
installation.
installation.
For connection to main PCB.
1. Two-way valve shall be spring and electronic type,
1. Two-way valve shall be spring and electronic type,
refer to “Field Supply Accessories” table for details.
Valve cable shall be (3 × min 1.5 mm
Valve cable shall be (3 × min 1.5 mm
2
), of type
designation 60245 IEC 57 or heavier, or similarly
double insulation sheathed cable.
* note: - Two-way Valve shall be CE marking
compliance component.
double insulation sheathed cable.
* note: - Two-way Valve shall be CE marking
compliance component.
- Maximum load for the valve is 9.8VA.
2. Three-way valve shall be spring and electronic
type. Valve cable shall be (3 × min 1.5 mm
2
), of
type designation 60245 IEC 57 or heavier, or
similarly double insulation sheathed cable.
* note: - Shall be CE marking compliance
component.
similarly double insulation sheathed cable.
* note: - Shall be CE marking compliance
component.
- It shall be directed to heating mode when
it is OFF.
- Maximum load for the valve is 9.8VA.
it is OFF.
- Maximum load for the valve is 9.8VA.
3. Room thermostat cable must be (4 or 3 × min 0.5
mm
2
), of type designation 60245 IEC 57 or
heavier cord, or similarly double insulation
sheathed cable.
sheathed cable.
4. Maximum output power of booster heater shall be
≤ 3 kW. Booster heater cable must be (3 × min 1.5
mm
mm
2
), of type designation 60245 IEC 57 or
heavier.
5. Extra pump cable shall be (2 × min 1.5 mm
2
), of
type designation 60245 IEC 57 or heavier.
6. Boiler contact cable shall be (2 × min 0.5 mm
2
), of
type designation 60245 IEC 57 or heavier.
7. External control shall be connected to 1-pole
switch with min 3.0 mm contact gap. Its cable
must be (2 × min 0.5 mm
must be (2 × min 0.5 mm
2
), double insulation layer
of PVC-sheathed or rubber-sheathed cable.
* note: - Switch used shall be CE compliance
component.
* note: - Switch used shall be CE compliance
component.
- Maximum operating current shall be less
than 3A
than 3A
rms
.
8. Tank sensor shall be resistance type, please refer
to Graph 7.1 for the characteristic and details of
sensor. Its cable shall be (2 × min 0.3 mm
sensor. Its cable shall be (2 × min 0.3 mm
2
),
double insulation layer (with insulation strength of
min 30V) of PVC-sheathed or rubber-sheathed
cable.
min 30V) of PVC-sheathed or rubber-sheathed
cable.
-30 -20 -10
0
10
20
30
16000
14000
12000
10000
14000
12000
10000
8000
˚C
6000
4000
2000
4000
2000
0
Graph 7.1: Tank sensor characteristic
Tank Sensor Resistant Vs Temperature
Re
si
sta
n
ce
(
Ω
)
9. Room sensor zone 1 cable shall be (2 × min 0.3
mm
2
) double insulation layer of PVC-sheathed or
rubber-sheathed.
10. Outdoor air sensor cable shall be (2 × min 0.3
mm
2
) double insulation layer of PVC-sheathed or
rubber-sheathed.
11. Tank OLP cable must be (2 × min 0.5 mm
2
),
double insulation layer of PVC-sheathed or
rubber-sheathed cable.
rubber-sheathed cable.
Bind optional
cables with
these bands
Power Supply 1
RCCB/ELCB
Power Supply 2
RCCB/ELCB
Holder (Clamper)
Indoor
terminal for
connecting
cables
Bind optional
cables with
these bands
Main PCB
How to guide the optional cables and power supply cord
(view without internal wiring)
Optional cables:
•
External control
cable
•
Tank sensor cable
•
Room sensor
zone 1
•
Outdoor air sensor
cable
•
Tank OLP cable
•
Remote controller
cable
Optional cables:
•
3-way valve
cable
•
2-way valve cable
•
Room thermostat zone
1 cable
•
Booster heater cable
•
Extra pump cable
•
Boiler contact cable
•
Power Supply 1 cord
•
Power Supply 2 cord
•
Indoor Unit/Outdoor Unit Connecting cable
For connection to optional PCB
1. By connecting optional PCB, 2 Zone temperature
1. By connecting optional PCB, 2 Zone temperature
control can be achieved. Please connect mixing
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valves, water pumps and thermistors in zone 1
and zone 2 to each terminals in optional PCB.
Temperature of each zone can be controlled
independently by remote controller.
and zone 2 to each terminals in optional PCB.
Temperature of each zone can be controlled
independently by remote controller.
2. Pump zone 1 and zone 2 cable shall be (2 × min
1.5 mm
2
), of type designation 60245 IEC 57 or
heavier.
3. Solar pump cable shall be (2 × min 1.5 mm
2
), of
type designation 60245 IEC 57 or heavier.
4. Pool pump cable shall be (2 × min 1.5 mm
2
), of
type designation 60245 IEC 57 or heavier.
5. Room thermostat zone 1 and zone 2 cable shall
be (4 × min 0.5 mm
2
), of type designation 60245
IEC 57 or heavier.
6. Mixing valve zone 1 and zone 2 cable shall be (3
× min 1.5 mm
2
), of type designation 60245 IEC 57
or heavier.
7. Room sensor zone 1 and zone 2 cable shall be (2
× min 0.3 mm
2
), double insulation layer (with
insulation strength of minimum 30V) of PVC-
sheathed or rubber-sheathed cable.
sheathed or rubber-sheathed cable.
8. Buffer tank sensor, pool water sensor and solar
sensor cable shall be (2 × min 0.3 mm
2
), double
insulation layer (with insulation strength of
minimum 30V) of PVC-sheathed or rubber-
sheathed cable.
minimum 30V) of PVC-sheathed or rubber-
sheathed cable.
9. Water sensor zone 1 and zone 2 cable shall be (2
× min 0.3 mm
2
), double insulation layer of PVC-
sheathed or rubber-sheathed cable.
10. Demand signal cable shall be (2 × min 0.3 mm
2
),
double insulation layer of PVC-sheathed or
rubber-sheathed cable.
rubber-sheathed cable.
11. SG signal cable shall be (3 × min 0.3 mm
2
),
double insulation layer of PVC-sheathed or
rubber-sheathed cable.
rubber-sheathed cable.
12. Heat/Cool switch cable shall be (2 × min 0.3 mm
2
),
double insulation layer of PVC-sheathed or
rubber-sheathed cable.
rubber-sheathed cable.
13. External compressor switch cable shall be (2 ×
min 0.3 mm
2
), double insulation layer of PVC-
sheathed or rubber-sheathed cable.
Bind optional
cables with
these bands
Optional
PCB
Bind all
optional cables
with these
bands
Bind optional
cables with
these bands
Bind all optional
cables with these
bands
Power Supply 1
RCCB/ELCB
Power Supply 2
RCCB/ELCB
Holder (Clamper)
Indoor
terminal for
connecting
cables
How to guide the optional cables and power supply cord
(view without internal wiring)
Optional cables:
•
External control cable
•
Tank sensor cable
•
Outdoor air sensor cable
•
Tank OLP cable
•
Remote controller cable
•
Room sensor zone 1 cable
•
Room sensor zone 2 cable
•
Buffer tank sensor cable
•
Pool sensor cable
•
Water sensor zone 1 cable
•
Water sensor zone 2 cable
•
Demand signal cable
•
Solar sensor cable
•
SG signal cable
•
Heat/Cool switch cable
•
External Compressor switch cable
Optional cables:
•
3-way valve cable
•
2-way valve cable
•
Booster heater cable
•
Extra pump cable
•
Boiler contact cable
•
Power Supply 1 cord
•
Power Supply 2 cord
•
Indoor Unit/Outdoor
Unit Connecting cable
Optional cables:
•
Pump zone 1 cable
•
Pump zone 2 cable
•
Solar pump cable
•
Pool pump cable
•
Room thermostat zone 1 cable
•
Room thermostat zone 2 cable
•
Mixing valve zone 1 cable
•
Mixing valve zone 2 cable
from optional
PCB
from optional PCB
Terminal screw on PCB
Maximum tightening torque
N•m {kgf•cm}
M3 50
{5.1}
M4 120
{12.24}
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