Honeywell TB6575, TB8575 24 Vac Wiring Diagrams (TB8575)

TB6575/TB8575 DIGITAL FAN COIL THERMOSTATS
962-0311—13
.
Fig. 13. Wiring diagram when missing a wire for
electromechanical retrofit (120/240/277 Vac shown).
24 Vac Wiring Diagrams (TB8575)
For the TB8575A1016 model, a 24 Vac Class 2 NEMA
rated transformer must be used.
Fig. 14. Two pipes Heat-only wiring diagram (24 Vac
shown).
Fig. 15. Two pipes Cool-only wiring diagram (24 Vac
shown).
Fig. 16. Two pipes (Heat or Cool) Manual Changeover
wiring diagram (24 Vac shown).
Fig. 17. Two pipes (Heat or Cool) auto changeover
wiring diagram (24 Vac shown).
Fig. 18. Four pipes (Heat and Cool) Manual/Auto
Changeover wiring diagram (24 Vac shown).
M31328A
HEAT VALVE
FAN
COOL VALVE
REMOTE SETBACK
REMOTE SENSOR
L (HOT)
3
4
5
5
1
2
1
2
REMOVE PRE-WIRED WIRE FROM TERMINAL 5 (MID FAN SPEED).
JUMPER TERMINALS 5 AND 6 (MID AND HIGH FAN SPEEDS). FAN
MEDIUM SETTING WILL OPERATE ON HIGH SPEED.
CONNECT TERMINAL 7 TO THE MID FAN SPEED WIRE FROM THE
PREVIOUS SYSTEM.
REWIRE THE PREVIOUS MID SPEED FAN WIRE TO THE NEUTRAL
CIRCUIT IN THE SYSTEM.
CHANGE INSTALLER SETUP IS CODE 9 TO 2 FOR 2 SPEED FAN
CONTROL.
3
4
N
L
W/Y
Y/A
GI
Gm
Gh
N
Rs
Sc
SB
Ps
24 VAC
M27573
HEAT VALVE
FAN
L1
(HOT)
L2 1
REMOTE SENSOR
REMOTE SETBACK
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
R
W/Y
Y/A
GI
Gm
Gh
C
Rs
Sc
SB
Ps
24 VAC
M27574
COOL VALVE
FAN
L1
(HOT)
L2 1
REMOTE SENSOR
REMOTE SETBACK
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
R
W/Y
Y/A
GI
Gm
Gh
C
Rs
Sc
SB
Ps
24 VAC
M27575
VALVE
FAN
L1
(HOT)
L2 1
REMOTE SENSOR
REMOTE SETBACK
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
R
W/Y
Y/A
GI
Gm
Gh
C
Rs
Sc
SB
Ps
24 VAC
M27576
VALVE
FAN
L1
(HOT)
L2 1
REMOTE SENSOR
REMOTE SETBACK
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
PIPE SENSOR
R
W/Y
Y/A
GI
Gm
Gh
C
Rs
Sc
SB
Ps
24 VAC
M27577
HEAT VALVE
FAN
L1
(HOT)
L2 1
REMOTE SENSOR
REMOTE SETBACK
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
COOL VALVE
R
W/Y
Y/A
GI
Gm
Gh
C
Rs
Sc
SB
Ps