T6374
EN0R8404 R4 1999
XE70 SERIES T6374/T6375
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
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.
FEATURES
• 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
•
Slide switches allow manual control of system
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)
T6374/T6375 FAN-COIL THERMOSTATS 4-PIPE FAN-COIL CONTROL
EN0R8404 R4 1999 2
SPECIFICATIONS
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-
over
(SPST) (SPTT) (SPDT) (SPDT) (DPDT) (DPTT) (DPTT) (Aquastat)
T6374C1004
4
T6374C1012
4 4
T6375B1021
4 4 4
T6375B1013
4 4 4
T6375C1003
4 4 4
T6375D1001
4 4 4
Setpoint range
:
10...30
o
C. By means of a large setpoint
dial
Supply voltage : 230 V~, 50...60 Hz
Thermostat
switch
: S.P.D.T.
Performance : Typical differential 1
o
C (heating &
cooling) at 20
o
C at 50% load with
anticipator connected
Electrical ratings : 4(2) A, 230 V~
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
mm
2
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 40
o
C
Shipping and storage temperature range
-20 to 50
o
C
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.
DIMENSIONS
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