Honeywell T6374C1004, T6374C1012, T6375B1013, T6375B1153 Series Manual

XE70 SERIES T6374/T6375

FEATURES

• • Slide switches allow manual control of system

FAN-COIL THERMOSTATS

4-PIPE FAN-COIL CONTROL

PRODUCT DATA

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

- range stops

- tamperproof cover

EN003-1003

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
T6375B1013
T6375B1153

4 4

4 4 4

4 4 4

4

over

Setpoint range

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

switch
Performance : Typical differential 1K (heating & cooling)

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

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

Mounting : Mounts directly onto wall or wall-box

10...30oC. By means of a large setpoint
dial

: S.P.D.T.

at 20oC at 50% load with anticipator
connected

Typical loads are fans, zone valves and

relays

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

(mounting screws supplied)

Wiring

Enclosure : Plastic 2-piece housing
Dimensions : 85 x 130 x 40 mm (w x h x d).
Protection class : IP30
RFI suppression Provided to B.S. EN 55014
Environmental

requirements

Approvals : Designed to meet harmonised EC

Up to 9 screw-in terminals per unit,
capable of accepting wires up to 1.5 mm

:

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

-20 to 50oC
Humidity range 0 to 90% rh, non­condensing

approvals standard IEC 730

2

EN003-1003 2