16
LEGEND
NOTE: Field wiring must use copper conductors only.
MDC
— Multiport Distribution Controller
Fig. 22 — Heat Recovery Communication Wiring Diagram
P Q
X Y
X Y
Indoor unit 1#
Indoor unit 2#
Indoor unit 3#
Indoor unit 4#
Indoor unit 5#
Indoor unit 6#
Outdoor Unit
Centralized Controller
No.N Sub MDC unit
(
1
Touch Screen
Wired Controller
HA HB
HA HB
HA HB
HA HB
HA HB
P Q
P Q
P Q
P Q
P Q
P Q
wired controller
HA HB
To No.1
indoor
To No.2
indoor
To No.3
indoor
To No.1
indoor
To No.2
indoor
To outdoor
To Sub MDC
To outdoor
L1
L2
L3
L3
L3
L3
L3
L5
L6
L7
L10
L11
Main MDC unit
L4
P Q
HA HB
L8
L9
HA HB
Note:Power from IDU
Note:24v AC Power