TB7300 SERIES COMMUNICATING FAN COIL THERMOSTATS
5
62-2018—05
Thermostat Terminals
Table 1. Terminal identification
For information on configuration options for the binary inputs (B1 and B2) and the universal input (U3) see Table 11.
Configuration Parameters.
Sensor Wiring for all Thermostat Models
Remote sensors
Remote mount temperature sensors use 10K type 2 NTC thermistors. See Remote Inputs wiring diagram below for
wiring information.
• Each sensor can be configured for various averaging combinations
• Optional occupancy led
• Optional override key
• Remote mount temperature sensors use 10K type 2 NTC thermistors.
Table 2. Temperature vs Resistance for 10 Kohm NTC thermistor (R
25°C
= 10KW±3%, B
25/85°C
= 3975K±1.5%)
Fig. 4. Remote input
Terminal
Description
TB73xxA5x14(x)
2 and 4 Pipe on/
off
TB73xxC5x14(x)
2 and 4 Pipe floating
2 and 4 Pipe on/off
Terminal
Description
TB73xxF5x14(x)
2 and 4 Pipe analog
Internal
Temperature
X
X
Internal
Temperature
X
Internal Humidity
Model Dependent
Internal Humidity
Model Dependent
1- High Fan Speed
Fan-H
Fan-H
1- High Fan Speed
Fan-H
2- Medium Fan
Speed
Fan-M
Fan-M
2- Medium Fan
Speed
Fan-M
3- Low Fan Speed
Fan-L
Fan-L
3- Low Fan Speed
Fan-L
4- 24 V~ Hot
24 V~ Hot
24 V~ Hot
4- 24 V~ Hot
24 V~ Hot
5- 24 V~ Com
24 V~ Com
24 V~ Com
5- 24 V~ Com
24 V~ Com
6- Aux BO 5
BO 5-Aux
BO 5-Aux
6- Aux BO 5
BO 5-Aux
7- Aux BO 5
BO 5-Aux
BO 5-Aux
7- Aux BO 5
BO 5-Aux
8- BO 3 Open Heat
BO 3
BO 3
Blank
9- BO 4 Close Heat
BO 4
9- AO 2 Heat
AO 2
10- BO 1 Open Cool
BO 1
10- AO 1 Cool
AO 1
11- BO 2 Close Cool
BO 2
BO 2
Not used Blank
Blank
12- BI #1
BI 1
BI 1
12- BI #1
BI 1
13- RS
RS
RS
13- RS
RS
14- Scom
Scom
Scom
14- Scom
Scom
15- BI #2
BI 2
BI 2
15- BI #2
BI 2
16- UI #3 COS/COC/
SS
UI 3
UI 3
16- UI #3 COS/COC/
SS
UI 3
ºF
ºC
Kohm
ºF
ºC
Kohm
ºF
ºC
Kohm
ºF
ºC
Kohm
ºF
ºC
Kohm
-40 -40 324.3197
-4
-20 94.5149
32
0
32.1910
68
20
12.4601
104 40
5.3467
-31 -35 234.4009
5
-15 71.2430
41
5
25.1119
77
25
10.0000
113 45
4.3881
-22 -30 171.3474
14
-10 54.1988
50
10
19.7390
86
30
8.0694
122 50
3.6202
-13 -25 126.6109
23
-5
41.5956
59
15
15.6286
95
35
6.5499
131 55
3.0016
BI 1
RS
Scom
BI 2
UI 3
REMOTE
WALL SENSOR
CONTACT
—REM NSB
—MOTION
—WINDOW
SS (SUPPLY SENSOR)
COS (CHANGEOVER
SENSOR)
COC/NH
—NORMALLY HEAT
—CLOSED CONTACT = COLD WATER
COC/NC
—NORMALLY COOL
—CLOSED CONTACT = HEAT WATER
CONTACT
—DOOR
—REMOTE OVERRIDE
—FILTER ALARM
—SERVICE ALARM
OR
M16948