Honeywell TB6575 SuitePRO Installation Instructions Manual page 8

TB6575/TB8575 SUITEPRO™ DIGITAL FAN COIL THERMOSTATS
24 Vac Wiring Diagrams (TB8575)
For the TB8575A1000 model, a 24 Vac Class 2 NEMA rated
transformer must be used.
R
W/Y HEAT VALVE
Y/A
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 15. Two pipes Heat-only wiring diagram (24 Vac shown).
R
W/Y COOL VALVE
Y/A
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 16. Two pipes Cool-only wiring diagram (24 Vac shown).
R
W/Y VALVE
Y/A
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 17. Two pipes (Heat or Cool) Manual Changeover wiring
diagram (24 Vac shown).
62-0278—01
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
M27573
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
M27574
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
M27575
R
W/Y
VALVE
Y/A
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 18. Two pipes (Heat or Cool) Auto Changeover wiring
diagram (24 Vac shown).
R
W/Y
HEAT VALVE
Y/A COOL VALVE
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 19. Four pipes (Heat and Cool) Manual/Auto Changeover
wiring diagram (24 Vac shown).
R
W/Y
VALVE
Y/A
AUX
GI
FAN
Gm
Gh
C
Rs
Sc
SB
Ps
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 20. Two pipes (Heat or Cool) with Auxiliary Heat and
Manual Changeover wiring diagram (24 Vac shown).
8
INSTALLATION
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
PIPE SENSOR
M27576
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
M27577
L1
(HOT)
24 VAC
L2
1
REMOTE SENSOR
REMOTE SETBACK
PIPE SENSOR
M27578