Honeywell T6374, T6375 PRODUCT SPECIFICATION SHEET

XE70 SERIES T6374/T6375

wired to run continuously, and can be switched off with the

FEATURES

•

Slide switches allow manual control of system

FAN-COIL THERMOSTATS

4-PIPE FAN-COIL CONTROL

PRODUCT SPECIFICATION SHEET

The T6374 and T6375 are designed to control the valves, or
the valves and the fan in 4-pipe fan-coil applications, with
the possibility of also being used for control of split units and
small air conditioners.

The thermostat operates the on/off valves to provide control
at the desired setpoint temperature.

The fan can also be controlled from the thermostat. It is
system ON/OFF switch.

Versions are available with a manual 3-SPEED FAN switch,
and with a system ON/OFF switch.

Heat/cool changeover operation is also possible on some
versions. This function can be accomplished by a manually
operated HEAT/ COOL switch on the front of the thermostat,
or in some versions, automatically by means of a fixed
deadband built into the thermostat between the heating and
cooling setpoints.

• Dual diaphragm sensing element ensures close

temperature control for all loads and applications

• Attractive modern styling makes this thermostat

ideal for locating in the occupied space, particularly
in offices or hotels

• Versions with heat anticipator, which improves

temperature control in both heating and cooling
operation

• Thermostat mounts directly onto a wall or conduit

box

operation and fan speed

• Versions available with fixed deadband between

heating and cooling operation

• Optional extras available are :

- range stops F42006646-001

- tamperproof cover F42008489-001 (opaque),

F42008489-002 (transparent)

EN0R8404 R4 1999

T6374/T6375 FAN-COIL THERMOSTATS 4-PIPE FAN-COIL CONTROL

SPECIFICATIONS

:

DIMENSIONS

Model Switches Features

ON/OFF 3-speed Fan/ Heat/Cool Heat/Cool Heat/Off/ Heat/Fan/ Fixed Auto

Fan Auto/Cont Cool Cool Deadband Change-

(SPST) (SPTT) (SPDT) (SPDT) (DPDT) (DPTT) (DPTT) (Aquastat)

T6374C1004
T6374C1012
T6375B1021
T6375B1013
T6375C1003
T6375D1001

4 4

4 4 4

4 4 4

4 4 4

4 4 4

4

over

Setpoint range: 10...30oC. By means of a large setpoint

dial

Supply voltage : 230 V~, 50...60 Hz
Thermostat

switch

Performance : Typical differential 1

Electrical ratings : 4(2) A, 230 V~

: S.P.D.T.

o

C (heating &
cooling) at 20oC at 50% load with
anticipator connected

Typical loads are fans, zone valves and

relays

Operational life : Greater than 100,000 cycles (all loads)

for thermostat contacts at 230 V~
Greater than 6,000 operations for all
manually operated switches

Mounting : Mounts directly onto wall or wall-box

(mounting screws supplied)

Wiring

Up to 9 screw-in terminals per unit,

capable of accepting wires up to 1.5

2

mm

Enclosure : Plastic 2-piece housing
Dimensions : 85 x 130 x 40 mm (w x h x d).
Protection class : IP30
Environmental

requirements

:

Operating temperature range 0 to 40oC
Shipping and storage temperature range

-20 to 50oC

Humidity range 0 to 90% rh, non-

condensing

Approvals : CE mark, complying with standards

EN60730-1 (1995), EN55014-1 (1997),
EN55014-2 (1996).

Product must be wired as shown for CE

compliance.

EN0R8404 R4 1999 2