Connection To Centralized Controller; Set Indoor Unit Address For Centralized Control - Lennox MPA009S4S Service Manual

16. Connection to Centralized Controller

16.1. Set Indoor Unit Address for Centralized Control

All indoor units connected to a centralized controller must have a unique address. Use the S1 dip switch and the S2 dial
switch to set the address for each indoor unit. The table below shows how to set the unique addresses.
All indoor units are factory set to "0". To change the address to "1", move the dial switch to the 1 position, do not adjust the
dip switches. To change the address to "35", move dip switch 1 to the UP position and move the dial switch to the 3 position.
FOR SETTING ADDRESS
S1+S2
RANGE
ADDRESS
DIP SWITCH
HANDLES
FACTORY SETTING
Indoor Unit Address is 0
Both dip switch handles are DOWN, dial points to 0.
MMDA Switch Location
Switch location and color varies for each indoor unit. Two examples are shown above.
0 0
ON
1 2
8 8
0 ~ F
0 ~ 15
LEFT - DOWN LEFT - DOWN
RIGHT - DOWN RIGHT - UP
Figure 58. Dip Switches
Figure 59. Dip Switch Settings
0
ON
1 2 8
0 ~ F 0 ~ F
16 ~ 31 32 ~ 47
LEFT - UP
RIGHT - DOWN
Dip switch 1 is UP and dip switch 2 is DOWN, dial points to 0.
87
0
ON
1 2
8
0 ~ F
48 ~ 63
LEFT - UP
RIGHT - UP
Indoor Unit Address is 32
M33A Switch Location
ON
1 2