Trane RTHD Installation Instructions Manual page 49

Table 12. Pin-out, relay 1K15
Terminal—
Relay 1K15 Description
10 N/C contact
11 N/O contact
2 N/C contact
7 N/O contact
A2 Coil - com
A1 Coil - "hot"
Dual Relay Output 1A8 Connections
7. Using 16 AWG wire, make the following connections listed
in Table 13.
Table 13. Pin-out, dual relay output (1A8)
Terminals—
1A8 Description
J11 Pins 1–4 PWR/Com
J2 Pin 6 Relay 115V in
J2 Pin 4 Relay N/O
AFD Control Wire Connections
8. Using 16 AWG wire make the following connections to the
AFD listed in Table 14.
Important:
• Remove and discard white wire connecting Pin 12 and Pin
37 on the AFD drive.
• The red wire needs to be removed from the connector on
the UC800 end.
SO-SVN048A-EN
Mating Connection Description
1X5-4 thru 7 115V "hot"
1X5-4 thru 7 115V "hot"
Heaters - 4E1,
1X5-1 4E2, Wires: 28A
and 28B
Primary Oil
1X5-2 Solenoid 4Y3 -
Wire: 29B
1X5-8 thru 11 115V "common"
Pin 5 - AFD Drive Running Relay
Mating Connection Description
LLID
WB2 communication/
power bus
1X5-4/7 To 115V "hot"
To Primary Oil
1X5-2 Solenoid 4Y3 -
Wire: (29B)
• The red wire on the Modbus
the AFD.
Table 14. Pin-out, AFD
Terminal—
AFD Description
®
Modbus (RS485)
Pin 61
Com (BK)
Modbus (RS485) +
Pin 68
(BLU)
Modbus (RS485) –
Pin 69
(GY)
Pin 4 Running Relay
Pin 5 Running Relay
Pin 37 Safe Stop
Pin 12 24V out
Figure 74. AFD—Remove white wire (safe stop)
Figure 75. AFD—Pin location safe stop and running
relay
Pins 4 and 5
(Running Relay2)
Pins 12
and 37
(Safe Stop)
Installation
®
cable is NOT connected to
Mating Connection Description
PIN 2 (IMC) UC800 Modbus (RS485)
1A1 Com (BK)
PIN 3 (IMC) UC800 Modbus (RS485) +
1A1 (BLU)
PIN 4 (IMC) UC800 Modbus (RS485) –
1A1 (GY)
1X5-4/7 115V "hot"
1K15, pin A1 Coil – "hot"
1K14, pin 9 N/O contact
1K14, pin 5 N/O contact
Remove White Wire From
Pins 12 and 37 (Safe
Stop)
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