Daikin RWEYQ30PY1 [143/342] Cool heat mode switching in case of heating and simultaneous cooling heating operation connection

Daikin RWEYQ16PY1 [143/342] Cool heat mode switching in case of heating and simultaneous cooling heating operation connection
Field Setting Si30-813
132 Test Operation
3.2.2 Cool / Heat Mode Switching (In case of heating and simultaneous
cooling / heating) operation connection
Set Cool/Heat Separately for Each BS Unit by Cool/Heat Selector.
(1) Before turning on the power of the BS unit, set the DIP switch (DS1-1) on the BS unit PC
board as following.
(2) Then, connect the COOL/HEAT selector to the terminal A, B and C of the terminal block
X2M on the BS unit PC board.
<Note>
This setting is read into the micro controller when turning on the power supply.
Be sure to make the setting before turning on the power supply.
Moreover, be sure to close the lid of the switch box after setting.
EXAMPLE OF TRANSMISSION LINE CONNECTION
Example of connecting transmission wiring.
Connect the transmission wirings as shown in the Fig. 1.
ON
OFF
DS1
12
X2M
ABC
COOL/HEAT selector
F2
B
C
A
F2
F1
F1
F2
F1
Outside unit
TO IN/D UNIT
TO OUT/D UNIT
F1 F2
F1 F2 F1 F2
F1 F2
IN/D
OUT/D.BS
REMOTE
CONTROLLER
BS unit A
F1 F2 F1 F2
IN/D
OUT/D.BS
BS unit B
COOL/HEAT
selector
Branch wiring
Use 2-core wires.
(There is no polarity.)
B
C
A
REMOTE
CONTROLLER
COOL/HEAT
selector
Cool/heat selector remote
control wiring
Use 3-core wires.
(Keep in mind the polarity.)
F1 F2 F1 F2
IN/D
OUT/D.BS
B
C
A
REMOTE
CONTROLLER
Final BS unit
Indoor unit for cooling
F2
F1
COOL/HEAT
selector
Fig. 1
F2
F1
F2
F1
F1 F2
F1 F2 F1 F2
IN/D
OUT/D.BS
F1 F2
F1 F2
OUT/D.BS
To the indoor unit where
the selection of heating
and cooling is available.
Final BS unit
In case of the indoor unit connect as the cool-only unit, it wire
he terminal of the last BS unit.
Cooling only
1st unit
Final unit

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