Trane Tracer UC400 - Page 22

22
BAS-SVX48H-EN
Figure 5. DX Heat Pump, Electric Heat, and SCR Electric Heat
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
TRIAC SUPPLY TRIACS
A
BO9BO8BO7BO6BO5BO4
A BB
CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS
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
IM
C
1
IM
C
Analog Cooling
or Changeover Valve
SCR
(Modulating)
Elec Heat
Analog/Heat/Cool Terminal Connections
Compressor/Valve Terminal Connections
Electric Heat Terminal Connections
Two-Tier
Terminal
Connections
Single-Tier
Terminal
Connections
Compressor 1
Compressor 2
Reversing Valve
Heating Stage 2 (Opt)
Heat Stage 1
Ground
24 Vac
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