Accessory List

TA-155 Series, TB-155 Series
228
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
Figure 3 Typical 4-Pipe Heating/Cooling Fan Cycles with
Demand for Heating or Cooling. With System Switch Off,
Fan is Off.
Figure 4 Typical 2-Pipe Heating/Cooling Fan Runs with
System Switch On or Off.
Figure 5 Typical 2-Pipe Heating/Cooling Fan Cycles with
Demand for Heating or Cooling.
With System Switch Off, Fan is Off.
Figure 6 Typical 4-Pipe Heating/Cooling.
No Fan Connections.
Figure 7 Typical 4-Pipe Heating/Cooling Fan Runs Continuously with System Switch On.
With System Switch Off, Fan is Off.
4
3
2
1
1
2
3
1
2
3
4
5
TB1
TB2
TB3
COOLING
VALV E
HEATING
VALV E
L2 OR NEUTRA
L
TA-155-10
LOW
MED
L1 (HOT)
FAN
HI
FAN
RELAY
FAN
RELAY
4
3
2
1
1
2
3
1
2
3
4
5
TB1
TB2
TB3
HEATING
/
COOLING
VALV E
L2 OR NEUTRAL
TA-155-17
680-243
CHANGEOVER
THERMOSTAT
PIPE MOUNTED
WHT
BLK
BLU
LOW
MED
L1 (HOT)
FAN
HI
4
3
2
1
1
2
3
1
2
3
4
5
TB1
TB2
TB3
HEATING/
COOLING
VALVE
L2 OR NEUTRA
L
TA-155-17
680-243
CHANGEOVER
THERMOSTAT
PIPE MOUNTED
WHT
BLK
BLU
LOW
MED
L1 (HOT)
FAN
HI
FAN
RELAY
4
3
2
1
1
2
3
TB1
TB3
L1 (HOT)
COOLING
VALVE
HEATING
VALVE
L2 OR NEUTRAL
TB-155-15
4
3
2
1
1
2
3
1
2
3
4
5
TB1
TB2
TB3
L2 OR NEUTRAL
TB-155-10
LOW
MED
L1 (HOT)
FAN
HI
COOLING
VALVE
HEATING
VALVE