Johnson Controls UNT110-1 - Page 37

UNT Controller—Unitary (UNT) Controller
37
When you connect an M100C actuator to the Zone Bus, we recommend
powering it with a separate 24 VAC transformer. However, you may use
the UNT’s transformer if it is sized to provide the required additional
20 VA and connected with the correct polarity. See Figure 14 for terminal
locations when wiring an M100C actuator.
untm100e
A91
Mixed Air
Sensor
15,000 ohms
T1
B2
NC
NO
C
A
C
B
10
8
9
S1
S2
T2
Y45AA-9
Temp
10
8
T1
9X
T2
10
8
9X
T1
T2
B1
Damper Comma
n
Minimum Positio
n
Override
X
B3
BO7
COMMON
BO8
BINARY INANALOG INPUTS BINARY OUTPUTS
R81EAA-2
Outdoor Air Damper Control
M100J
for Return
Air Damper
M100J
for Exhaust
Air Damper
Power
Transformer
120/24 VAC
Power
Transformer
120/24 VAC
Power
Transformer
120/24 VAC
COM
24 VAC
COM
24 VAC
24 VAC
COM
Figure 15: R81EAA-2 UNT Controller Interface
M100/R81EAA-2