
17
Fig. 28 —Typical Heat Pump System Communication Wiring
34
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• •
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34
34
wired controller
+$+%
L1
L3
L5
L6
L7
L8
L9
L10
L11
L3
L3
L3
L3
Indoor unit 1#
Indoor unit 2#
Indoor unit 3#
Indoor unit 4#
Indoor unit 5#
Indoor unit 6#
Maximun wiring length
//IW$:*&RUH6WUDQGHG6KLHOG
/IW$:*&RUH6WUDQGHG6KLHOG
////IW$:*&RUH6WUDQGHG6KLHOG
//IW$:*&RUH6WUDQGHG6KLHOG
127(1HWZRUNUHVLVWRULVVKLSSHGZLWKWKHRXWGRRUXQLWIRUILHOGLQVWDOODWLRQRQWKHKHDWSXPSV\VWHP
+$+%
+$+%
+$+%
+$+%
+$+%
+$+%
4
Matched resistance
(network matchded
wire group)
3
wired controller
+$+%