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11.2 Variation of system
This section introduces variation of various systems using Air-To-Water Heatpump and actual setting method.
11.2.1 Introduce application related to temperature setting.
11.2.1.1 Temperature
setting variation for heating
1. Remote
Controller
Outdoor
Floor heating
Indoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Water temperature
Connect floor heating or radiator directly to the indoor unit.
Remote controller is installed on indoor unit.
This is the basic form of the most simple system.
2. Room
Remote controller is installed on indoor unit.
This is the basic form of the most simple system.
2. Room
Thermostat
Outdoor
Indoor unit receive Room Thermo signal (ON/OFF) from Remote controller
to control HP and circulation pump.
There is a build-in thermistor in the remote controller.
to control HP and circulation pump.
There is a build-in thermistor in the remote controller.
Floor heating
Indoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
Internal
Connect floor heating or radiator directly to the indoor unit.
Remove remote controller from indoor unit and install it in the room where floor heating is installed.
This is an application that uses remote controller as Room Thermostat.
3. External Room Thermostat
Outdoor
Room
Thermostat
(Field supply)
Thermostat
(Field supply)
Floor heating
Indoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
(External)
(External)
Connect floor heating or radiator directly to indoor unit.
Remote controller is installed on indoor unit.
Install separate external Room Thermostat (field supply) in the room where floor heating is installed.
This is an application that uses external Room Thermostat.
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4. Room
Thermistor
Outdoor
Max: 30m
Thermistor
Indoor unit compare between room temperature and setting temperature
on the Remote controller to control HP and circulation pump.
on the Remote controller to control HP and circulation pump.
Floor heating
Indoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermistor
Connect floor heating or radiator directly to indoor unit.
Remote controller is installed on indoor unit.
Install separate external room thermistor (specified by Panasonic) in the room where floor heating is installed.
This is an application that uses external room thermistor.
There are 2 kinds of circulation water temperature setting method.
Direct: set direct circulation water temperature (fixed value)
Compensation curve: set circulation water temperature depends on outdoor ambient temperature
In case of Room thermo or Room thermistor, compensation curve can be set.
In this case, compensation curve is shifted according to the thermo ON/OFF situation.
Direct: set direct circulation water temperature (fixed value)
Compensation curve: set circulation water temperature depends on outdoor ambient temperature
In case of Room thermo or Room thermistor, compensation curve can be set.
In this case, compensation curve is shifted according to the thermo ON/OFF situation.
(Example) If room temperature increasing speed is;
very slow → shift up the compensation curve
very fast → shift down the compensation curve
very slow → shift up the compensation curve
very fast → shift down the compensation curve
11.2.1.2 Examples of installations
Floor heating 1 + Floor heating 2
Outdoor
Room Thermostat
(field supply)
(field supply)
Thermistor 2
Thermistor 1
Buffer tank
Pump 2
Pump 1
Mixing valve 2
Mixing valve 1
Indoor
Floor heating 2
Floor heating 1
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2:Sensor
Room
Room thermostat
(External)
Connect floor heating to 2 circuits through buffer tank as shown in the figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Remove remote controller from indoor unit, install it in one of the circuit and use it as Room Thermostat.
Install external Room Thermostat (field supply) in another circuit.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires optional PCB (CZ-NS4P).
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Remove remote controller from indoor unit, install it in one of the circuit and use it as Room Thermostat.
Install external Room Thermostat (field supply) in another circuit.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires optional PCB (CZ-NS4P).
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Floor heating + Radiator
Outdoor
Radiator
Thermistor 1
Thermistor 2
Buffer tank
Pump 2
Pump 1
Mixing valve 1
Indoor
Floor heating
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature
Connect floor heating or radiator to 2 circuits through buffer tank as shown in figure.
Install pumps and thermistors (specified by Panasonic) on both circuits.
Install mixing valve in the circuit with lower temperature among the 2 circuits.
(Generally, if install floor heating and radiator circuit at 2 zones, install mixing valve in floor heating circuit.)
Remote controller is installed on indoor unit.
For temperature setting, select circulation water temperature for both circuits.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires the optional PCB (CZ-NS4P).
Mind that if there is no mixing valve at the secondary side, the circulation water temperature may get higher than
setting temperature.
Floor heating + Swimming pool
Install pumps and thermistors (specified by Panasonic) on both circuits.
Install mixing valve in the circuit with lower temperature among the 2 circuits.
(Generally, if install floor heating and radiator circuit at 2 zones, install mixing valve in floor heating circuit.)
Remote controller is installed on indoor unit.
For temperature setting, select circulation water temperature for both circuits.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires the optional PCB (CZ-NS4P).
Mind that if there is no mixing valve at the secondary side, the circulation water temperature may get higher than
setting temperature.
Floor heating + Swimming pool
Outdoor
Thermistor 1
Heat EXT
Thermistor 3
Thermistor 2
Buffer tank
Pump 2
Pump 3
Pump 1
Mixing valve 1
Mixing valve 2
Indoor
Floor heating 1
Swimming pool
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2
Swimming pool
T
Connect floor heating and swimming pool to 2 circuits through buffer tank as shown in figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Then, install additional pool heat exchanger, pool pump and pool sensor on pool circuit.
Remove remote controller from indoor unit and install in room where floor heating is installed. Circulation water
temperature of floor heating and swimming pool can be set independently.
Install buffer tank sensor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately. This system
requires the optional PCB (CZ-NS4P).
Must connect swimming pool to “Zone 2”.
If it is connected to swimming pool, operation of pool will stop when “Cooling” is operated.
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Swimming pool only
Thermistor 3
Pump 3
Swimming pool
Heat EXT
Indoor
Outdoor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 1 Zone system
Zone :Swimming pool
T
This is an application that connects to the swimming pool only.
Connects pool heat exchanger directly to indoor unit without using buffer tank.
Install pool pump and pool sensor (specified by Panasonic) at secondary side of the pool heat exchanger.
Remove remote controller from indoor unit and install in room where floor heating is installed.
Temperature of swimming pool can be set independently.
This system requires the optional PCB (CZ-NS4P).
In this application, cooling mode cannot be selected. (not display on remote controller)
Simple 2 zone (Floor heating + Radiator)
Connects pool heat exchanger directly to indoor unit without using buffer tank.
Install pool pump and pool sensor (specified by Panasonic) at secondary side of the pool heat exchanger.
Remove remote controller from indoor unit and install in room where floor heating is installed.
Temperature of swimming pool can be set independently.
This system requires the optional PCB (CZ-NS4P).
In this application, cooling mode cannot be selected. (not display on remote controller)
Simple 2 zone (Floor heating + Radiator)
Thermistor 2
Thermistor 1
Pump 2
Mixing valve 2
Indoor
Outdoor
Radiator
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature
Operation setup
Heat
T for heating ON – 1°C
Cool
T for cooling ON – 1°C
This is an example of simple 2 zone control without using buffer tank.
Built-in pump from indoor unit served as a pump in zone 1.
Install mixing valve, pump and thermistor (specified by Panasonic) on zone 2 circuit.
Please be sure to assign high temperature side to zone 1 as temperature of zone 1 cannot be adjusted.
Zone 1 thermistor is required to display temperature of zone 1 on remote controller.
Circulation water temperature of both circuits can be set independently.
(However, temperature of high temperature side and low temperature side cannot be reversed)
This system requires the optional PCB (CZ-NS4P).
(CAUTION)
Built-in pump from indoor unit served as a pump in zone 1.
Install mixing valve, pump and thermistor (specified by Panasonic) on zone 2 circuit.
Please be sure to assign high temperature side to zone 1 as temperature of zone 1 cannot be adjusted.
Zone 1 thermistor is required to display temperature of zone 1 on remote controller.
Circulation water temperature of both circuits can be set independently.
(However, temperature of high temperature side and low temperature side cannot be reversed)
This system requires the optional PCB (CZ-NS4P).
(CAUTION)
Thermistor 1 does not affect operation directly. But error happens if it is not installed.
Please adjust flow rate of zone 1 and zone 2 to be in balance. If it is not adjusted correctly, it may affects the
performance.
(If zone 2 pump flow rate is too high, there is possibility that no hot water flowing to zone 1.)
Flow rate can be confirmed by “Actuator Check” from maintenance menu.
(If zone 2 pump flow rate is too high, there is possibility that no hot water flowing to zone 1.)
Flow rate can be confirmed by “Actuator Check” from maintenance menu.
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