65
DIP SWITCHES BRANCH CONTROLLERS
COMMON DIP SWITCHES
SW4-6
Used when any indoor unit sized between P81 and P140 uses 2x ports on the branch controller.
In this case the port address must be set at the lowest port number.
Switch functions <BC controller> (Control board)
Model setting
Switch
Function
Function according to switch setting
Switch setting timing
OFF
ON
SW4
1
Model setting
R410A
-
Always leave this switch to OFF.
-
-
-
-
5
-
2
6
No. of ports
*1
*1. When a junction pipe kit was used to merge two ports to connect the indoor units with a total capacity of between P81
and P140, turn DIP SW4-6 to ON. When connecting a main and a sub BC controller, change the SW setting on only the
main BC controller. (It is not necessary to change the SW setting on the sub BC controller. )
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-
-
-
-
8
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7
SW5
-
-
-
-
6
-
1
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8
Switch
SW5-8
OFF
ON
SW5-7
OFF
G1 type
ON
GA1 (HA1) type
GB1 (HB1) type
In some low load situations low operating frequency chatter can cause noise concerns. In these situations adjusting the
minimum operating frequency may be the best option and will remove this low frequency chatter. However, it is important
to know that this may also reduce the minimum operating capacity of some indoor units causing them to have less accurate
temperature control.
P200/P250
EP250
P300/P350/P400
EP250/EP300
P450
EP350
Cooling Only
Cooling Main
Heating Only
Heating Main
Cooling Only
Cooling Main
Heating Only
Heating Main
Cooling Only
Cooling Main
Heating Only
Heating Main
SW3-1=OFF
SW3-2=OFF
SW3-5=OFF
14
19
18
15
18
15
SW3-1=ON
SW3-2=OFF
SW3-5=ON
14
10
18
24
18
24
SW3-1=ON
SW3-2=OFF
SW3-5=OFF
20
21
30
28
30
35
PUHY/PURY-P***YKB/YLM – To increase minimum frequency in cooling adjust function 936.
Set SW4-4,6,8,9,10 to “ON” LED1 will display the current value. To adjust, set SW6-10 to “ON” and press and hold SWP1 for 2sec, LED3
will become lit to indicate the function is now on. Set SW6-10 back to “OFF” to display the new value on LED1. Repeat to reach the desired
frequency. Set all of SW4 back to “OFF” for LED1 display to return to normal.
PUHY/PURY-P***YKB/YLM – To increase minimum frequency in heating adjust function 937.
Set SW4-1,4,6,8,9,10 to “ON” LED1 will display the current value. To adjust, set SW6-10 to “ON” and press and hold SWP1 for 2sec, LED3
will become lit to indicate the function is now on. Set SW6-10 back to “OFF” to display the new value on LED1. Repeat to reach the desired
frequency. Set all of SW4 back to “OFF” for LED1 display to return to normal.
MINIMUM COMPRESSOR FREQUENCY FOR PURY-YJM
Minimum operating frequency adjustment
Содержание BDT CITY MULTI
Страница 41: ...41 S SERIES OUTDOOR UNIT WIRING INPUTS AND OUTPUTS CITY MULTI ONLY ...
Страница 42: ...42 INDOOR UNIT WIRING INPUTS AND OUTPUTS CITY MULTI ONLY INPUTS AND OUTPUTS Continued ...
Страница 44: ...44 RECOMMENDED M NET WIRING PROCEDURE CABLE LIMITATIONS AND SYSTEM EXAMPLES ...
Страница 47: ...47 ...
Страница 48: ...48 BASIC SYSTEM M NET WIRING AND ADDRESSING EXAMPLE M NET ADDRESSING Continued ...
Страница 63: ...63 DIP SWITCHES INDOOR UNITS ...
Страница 68: ...68 Stanley Street Building Auckland ...
