Mitsubishi Electric ecodan ERST20 series Installationshandbuch Seite 28

5
System Set Up
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 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 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 controller
installation manual.
The thermostat is used to set the maximum temperature for heating Zone2 room.
The thermostat is wired to IN6 on FTC. (If the thermostat is allocated to Zone1, it is
wired to IN1 on TBI.1.) (Refer to 5.2.)
Control option B
This option features the main remote controller, the Mitsubishi Electric thermistor and a
locally supplied thermostat that are wired to FTC.
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
must be made using the main remote controller mounted on the cylinder unit.
Wire the thermistor to the TH1 connector on FTC.
The number of room temperature thermistors that can be connected to FTC is always
one.
The thermostat is used to set the maximum temperature for heating Zone2 room.
The thermostat is wired to IN6 on FTC. (If the thermostat is allocated to Zone1, wire it to
IN1 on TBI.1.) (Refer to 5.2.)
Control option C
This option features the main remote controller (with in-built thermistor) that is removed
from the cylinder unit 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 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 de-
tached from the cylinder unit. Otherwise it will detect the temperature of the cylinder unit
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. (If the thermostat is allocated to Zone1, wire it
to external input IN1 on TBI.1.) (Refer to 5.2.)
Note: Wiring for main remote controller cable shall be (5 cm or more) apart from power
source wiring so that it is not influenced by electrical noise from power source
wiring. (Do NOT insert main remote controller cable and power source wiring in
the same conduit.)
Control option d
This option features the locally supplied thermostats wired to FTC. The thermostats
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
must be made using the main remote controller mounted on the cylinder unit.
The thermostat for Zone1 is wired to IN1 in TBI.1 on FTC.
The thermostat for Zone2 is wired to IN6 in TBI.1 on FTC.
* 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).
the wireless remote controller can be also used as a thermostat.
27
Wireless receiver
(option)
FTC
Main remote
Outdoor unit
controller
Cylinder unit
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
FTC
Outdoor unit Main remote
controller
Cylinder unit
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
FTC
Cylinder unit
Outdoor unit
Zone1: Room temp. control (Auto adaptation)
Zone2: Compensation curve or flow temp. control
FTC
Main remote
Outdoor unit
controller
Cylinder unit
Zone1, Zone2: Compensation curve or flow temp. control
Wireless remote controller
(option)
20.0°C
Max. 8
20.0°C
Zone1
20.0°C
Room temperature
thermostat
(local supply)
Zone2
Room temperature
thermistor (option)
Zone1
20.0°C
Room temperature
thermostat
(local supply)
Zone2
Main remote
controller
(remote position)
Zone1
20.0°C
Room temperature
thermostat
(local supply)
Zone2
Room temperature
thermostat
(local supply)
Zone1
20.0°C
Room temperature
thermostat
(local supply)
Zone2