18
2-zone temperature control
Control option A
This option features the main remote controller, the Mitsubishi Electric wireless remote
controller and a locally supplied thermostat.
The wireless remote controller is used to monitor the Zone1 room temperature and the
thermostat is used to monitor the Zone2 room temperature.
The thermostat can be also allocated to Zone1 and the wireless remote controller to
Zone2.
The wireless remote controller can be also used to make changes to the space heating
settings, boost DHW (*1) and switch to holiday mode without having to use the main
remote controller.
If more than one wireless remote controller is used, the last temperature setting
adjustment/demand will be applied to ALL rooms in same zone.
Wire the wireless receiver to FTC (Master) referring to the wireless remote controller
instruction manual. Turn DIP SW1-8 to ON. Before operation configure the wireless
remote controller to transmit and receive data referring to the wireless remote control-
ler installation manual.
The thermostat is used to set the maximum temperature for heating Zone2 room.
The thermostat is wired to IN6 on FTC (Master). (If the thermostat is allocated to
Zone1, it is wired to IN1 on TBI.1.) (Refer to 4.5.)
Control option B
This option features the main remote controller, the Mitsubishi Electric thermistor and a
locally supplied thermostat that are wired to FTC (Master).
The thermistor is used to monitor the Zone1 room temperature and the thermostat is
used to control the Zone2 room temperature.
The thermostat can be also allocated to Zone1 and the thermistor to Zone2.
The thermistor can not make any changes in control operation. Any changes to DHW
(*1) must be made using the main remote controller mounted on the FTC (Master).
Wire the thermistor to the TH1 connector on FTC (Master).
The number of room temperature thermistors that can be connected to FTC (Master) is
always one.
The thermostat is used to set the maximum temperature for heating Zone2 room.
The thermostat is wired to IN6 on FTC (Master). (If the thermostat is allocated to Zone1,
wire it to IN1 on TBI.1.) (Refer to 4.5.)
Control option C
This option features the main remote controller (with in-built thermistor) that is removed
from the FTC (Master) to monitor the Zone1 room temperature and a locally supplied
thermostat to monitor the Zone2 room temperature.
The thermostat can be also allocated to Zone1 and the thermistor to Zone2.
A thermistor built into the main remote controller can be used for monitoring the room
temperature for Auto Adaptation function whilst keeping all its features of the main re-
mote controller available.
The main remote controller and FTC (Master) are connected by a 2-core, 0.3 mm²,
non-polar cable (local supply) with a maximum length of 500 m.
To use the sensor in the main remote controller, the main remote controller should be
detached from the FTC (Master). Otherwise it will detect the temperature of the FTC
(Master) instead of room temperature. This will affect the output of the space heating.
The thermostat is used to set the maximum temperature for heating Zone2 room.
The thermostat is wired to IN6 on FTC (Master). (If the thermostat is allocated to
Zone1, wire it to IN1 on TBI.1.) (Refer to 4.5.)
Control option D
This option features the locally supplied thermostats wired to FTC (Master). The ther-
mostats are individually allocated to Zone1 and Zone2. The thermostats are used to
set each maximum temperature for heating Zone1 and Zone2 rooms. Any changes to
DHW (*1) must be made using the main remote controller mounted on the FTC (Master).
The thermostat for Zone1 is wired to IN1 in TBI.1 on FTC (Master).
The thermostat for Zone2 is wired to IN6 in TBI.1 on FTC (Master).
Note: For the options above, the sensor types can be exchanged between Zone1 and Zone2.
(e.g. Wireless remote controller in Zone1 and Room temp. thermostat in Zone2 can be changed to Room temp. thermostat and wireless remote controller, respectively).
*1 If applicable
The wireless remote controller can be also used as a thermostat.
FTC
(Master)
20.0°C
FTC
(Master)
20.0°C
FTC
(Master)
20.0°C
20.0°C
20.0°C
FTC
(Master)
20.0°C
4. Electrical work
Room temperature
thermistor (option)
Room temperature
thermostat
(local supply)
Main remote controller
Outdoor unit
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
Zone1
Zone2
Main remote controller
(remote position)
Room temperature
thermostat
(local supply)
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
Zone2
Zone1
Outdoor unit
Room temperature
thermostat
(local supply)
Wireless receiver
(option)
Wireless remote controller
(option)
Outdoor unit
Zone1
Zone2
Max. 8
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
Outdoor unit
Room temperature
thermostat
(local supply)
Room temperature
thermostat
(local supply)
Zone2
Zone1
Zone1, Zone2: Compensation curve or flow temp. control
Main remote controller
Main remote controller
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