12
SS-SVN016A-EN
Pairing D
Figure 3. Pairing D for Electromechanical condenser to Symbio Air Handler SZVAV
Electromechanical Condenser
Symbio Air Handler SZVAV
THERMOSTAT WIRE
CONTROL WIRE
T-StatT-Stat
T-STAT R
T-STAT GND
T-STAT G
T-STAT Y1
LTB1-B1
LTB1-R
RB-J10-2
RB-J10-1
RB-J5-1
RB-J5-6
RELAY BOARD
J5
COIL DEFROST
R (24VAC)
T-STAT GND
T-STAT G
T-STAT Y1
T-STAT Y2
T-STAT W1
T-STAT W2
1 2 3 4 5 6 7 8
J6
1 2 3
O (IN)
OA (OUT)
OB (OUT)
J7
1 2 3
COMMON
MODBUS -
MODBUS +
IMC -
J4
1 2 3 4
IMC +
COMMON
24VAC IN
(RB)
LTB1
B1
B2
Y1
Y2
R
LTB1
B1
B2
Y1
Y2
R
J10
24VAC IN
COMMON
1 2
J10
24VAC IN
COMMON
1 2
J9
INDOOR FAN RUN OUT
COMMON
1 2
J8
24VAC OUT
COIL DEFROST IN
1 2
LTB1-B2
RB-J5-5
R
BK
T-STAT W2
T-STAT W1
T-STAT Y2
LTB1-Y2
LTB1-Y1
O
BL
R
BK
1 2 3 4 5 6
1 2 3 4 5 61 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
BK
R
BL
O
WIR010190
REQUIRED
WIR010185
OPTIONAL
TR150 VFD
27 INT COAST INVERSE
12 +24VDC OUT
18 VFD RUN IN
50 +10VDC OUT
53 VFD SPEED COMMAND IN
EDC
J11
24VDC IN
VFD RUN OUT
10VDC IN
HI SPEED OUT
COMMON
COMMON
1 2 3 4 5 6
J11
24VDC IN
VFD RUN OUT
10VDC IN
HI SPEED OUT
COMMON
COMMON
1 2 3 4 5 6
NNootteess::
• Pairing an electromechanical condensing unit with a Symbio SZVAV air handler will limit the indoor fan to
two speeds.
• This pairing requires the use of wire harness WIR010190 which can be purchased from Trane Supply. Wiring
Harness WIR010185 is optional for this pairing and is only needed to provide a pigtail for the VFD.
Thermostat Connections
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1. Connect a pair of conductors from thermostat R and ground terminals to relay board J10-1
and relay board J5-3. It is recommended to use the J10-1 terminal on the relay board instead
of the J5-2 terminal on the relay board to power the thermostat.
2. Connect the remaining conductors to their corresponding terminal on the J5 connector on the
relay board. Depending on the size and setup of the application, the number of conductors
will vary:
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