Thermostat Control - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
9.2

Thermostat Control

9.2.1 Thermostat Control for VRV Multi System
The thermostat control for VRV multi system is available in the three patterns shown below.
1. Using suction air thermistor (body thermostat) and remote control thermistor in
2. Only using suction air thermistor (body thermostat)
3. Replacing suction air thermistor with remote sensor
· Using suction air thermistor and remote control
· Only using suction air thermistor
Only using suction air
thermistor:
Only using suction air
thermistor:
*1. The simplified remote controller BRC2C51 incorporates a remote control thermostat.
*2. The remote controller setting 10 (20) is displayed as 2-01 (Use). For group control, however,
Remark: For the SkyAir Series, factory setting is made to "Only using suction air thermistor".
Function
combination (Factory setting)
· For VRV multi system, the suction air thermistor (body thermostat) of indoor unit and the
thermistor of remote controller (BRC1C62) are used in combination to control room
temperatures.
· For the operating ranges of thermistors, refer to information on the following page.
· If the remote control thermistor is unable to sample room temperatures, it will be needed to
make a change to the thermistor selection from "Remote control thermistor + Suction air
thermistor" to "Suction air thermistor" by the use of field setting mode of the remote
controller.
· For control without using a remote controller such as group control, the system will be
changed to control only using the suction air thermistor.
· If the suction air thermistor is unable to detect accurate room temperatures (in case of the
ceiling chamber type), it will be recommended to replace the suction air thermistor of indoor
unit with a remote sensor.
Thermostat control 1 and 2
thermistor in combination (Factory setting)
Indoor unit
Remote controller (BRC1C62)
Simplified remote controller (BRC2C51) (See *1)

Thermostat control 2

Since the remote controller
is set to group control
For group control mode, the thermostat
setting of remote controller
is automatically changed to
"
Remote controller
(BRC1C62)
Since the remote controller
has no thermistor, the
The remote controller is thermostat setting of
· wireless remote remote controller is
controller, or automatically changed to
· simplified remote "Not use". (See *2)
controller BRC2C51.
(See *1)
it is automatically changed to "Not use" of remote control thermostat.
"
Not use . (See *2)
Outline of Control (Indoor Unit)
Thermostat control 3
· Replacing suction air thermistor with a
remote sensor
Indoor unit
Remote
sensor
Remote controller (BRC1C62)
Simplified remote controller (BRC2C51)
Thermostat control 3
Replacing suction air thermistors with
remote sensors:
Remote sensor
Remote controller
(BRC1C62)
Replacing suction air thermistor with a
remote sensor:
In case a simplified remote
controller is used
Remote
sensor
116