Trane Tracer UC400 - Page 23

BAS-SVX48H-EN
23
Figure 6. 2–Position Cooling/Heating w/Face and Bypass Damper
VAC
24
XFRM
VAC
24
VAC
24
BI 1 BI 2 BI 3
LINK
IMC
+
24
VDC
BI
4
AO1
BI
5
AO2
UI
1
UI
2
AI
3
AI
2
AI
1
AI
4
AI
5
P
1
P
2
CNCNO
BO3
CNCNO
BO2
CNCNO
BO1
RELAYS
ADDRESS
TRIAC SUPPLY TRIACS
A
BO9BO8BO7BO6BO5BO4
A BB
TX
RX
LINK
IMC
SERVI
C
E
SERVICE TOOL
CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS
BO1 BO2 BO3 BO4 BO5 BO6 BO7 BO8 BO9
1
2
3
4
5
6
7
8
9
IM
C
1
IM
C
1
3
4
5
6
7
1
2
3
4
5
6
7
8
9
8
9
TRIAC SUPPLY TRIACS
A
BO9BO8BO7BO6BO5BO4
A BB
CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS
Two-Tier
Terminal
Connections
Single-Tier
Terminal
Connections
2-Position Cool/Heat Face and Bypass Terminal Connections
Ground
To 24 Vac
Supply
2-Pos
Heating
Valve
2-Pos
Cooling
Valve
Face/Bypass
Damper
open
closed
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