Honeywell T6380 - Manual (Page 3)

T6380 - INSTALLATION, WIRING
Fig. 2c – T6383A: 2-pipe, heat/cool, seasonal auto-changeover, INSTALLATION
constant fan
.
MOUNTING:
T6383A
Mount the thermostat on an inside wall 4’ to 5' [1.5 m] above
the floor. Do not mount where thermostat can be affected by
1
L2 L1(HOT)
FAN
Heat (ORG)
Cool (YEL)
Off
WHT
(VIO)
TOHEAT/COOL
VALVE
FAN
BLK
W
R
B
AQUASTAT
(RED) LO
(BRN) HI
1
2
3
(BLU) MED
1
External jumper
drafts, radiant heat from the sun, or other sources of heat.
T6380's mount on NEMA standard 2"x3" single gang flush or
2"x4" surface mount electrical box, or on 4"x4" box with mud
ring adaptor (not provided).
WIRING
3Internal schematic and external wiring connections are
shown in Fig. 2a through Fig. 8c. Wiring connections may be
made to the 8 position screw terminal block with 1- 14 AWG,
or 2- 18 AWG, solid or stranded copper wires.
(NEUTRAL)
Fig. 2a – T6383A for 2-pipe, constant fan, cooling only
T6383A
Fig. 3 – T6383B: 2-pipe, heat/cool, manual changeover, constant
L2 L1(HOT)
(NEUTRAL)
FAN
(RED)
(BLU)
(BRN)
Heat (ORG)
Cool (YEL)
Off 1
2
3
WHT
(VIO)
BLK
fan
TO COOLING
VALVE
T6383B
WHT
L2(NEUTRAL) L1(HOT)
Med (BLU)
Hi (BRN)
Lo (RED)
BLK
SYSTEM
FAN
Heat
Off
Cool
Heat (ORG)
Cool (YEL) TOHEATING/
COOLING
VALVE
To internal heat/cool
circuits
HI
MED
LO
FAN
External jumper
HI
MED
LO
FAN
External jumper
Fig. 2b – T6383A for 2-pipe, constant fan, heating only
T6383A
L2 L1(HOT)
FAN
(RED)
(BLU)
(BRN)
Heat (ORG)
Cool (YEL)
Off 1
2
3
WHT
(VIO)
BLK
Fig. 4a – T6383B: 4-pipe, heat/cool, manual changeover,
constant fan
TO HEATING
VALVE
T6383B
WHT
L2(NEUTRAL) L1(HOT)
Med (BLU)
Hi (BRN)
Lo (RED)
BLK
SYSTEM
FAN
Heat
Off
Cool
Heat (ORG)
Cool (YEL)
TO COOLING
VALVE
To internal heat/cool
circuits
HI
MED
LO
FAN
External jumper
TO HEATING
VALVE
HI
FAN
MED
(NEUTRAL) LO
3