XE70 SERIES T6370/T6371
water pipe of the fan-coil.
FEATURES
•
Slide switches allow manual control of system
FAN-COIL THERMOSTATS
FAN ONLY CONTROL
PRODUCT SPECIFICATION SHEET
The T6370 and T6371 are designed to control the fan only in
fan-coil or ventilation applications.
In all cases the thermostat cycles the fan to provide control
at the desired setpoint temperature.
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. A
version for 2-pipe fan-coil units allows automatic heat/cool
changeover by connection of a pipe thermostat on the supply
• 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
• All versions have 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
• Auto heat/cool changeover possible (on one version)
by using pipe thermostat
• Optional extras available are :
- range stops F42006646-001
- tamperproof cover F42008489-001 (opaque),
F42008489-002 (transparent)
EN0R8402 R4 1998
T6370/T6371 FAN -COIL THERMOSTATS FAN ONLY 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)
T6370A1010
T6371A1019
T6371B1017
T6371C1015
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 oC (heating &
Electrical ratings : 4(2) A, 230 V~
Operational life : Greater than 100,000 cycles (all loads)
Mounting : Mounts directly onto wall or wall-box
: S.P.D.T.
cooling) at 20 oC at 50% load with
anticipator connected
Typical loads are fans
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
Environmental
requirements
Approvals : CE mark, complying with standards
Up to 8 screw-in terminals per unit,
capable of accepting wires up to 1.5
2
mm
:
Operating temperature range 0 to 40oC
Shipping and storage temperature range
-20 to 50oC
Humidity range 0 to 90% rh, noncondensing
EN60730-1 (1995), EN55014-1 (1997),
EN55014-2 (1996).
Product must be wired as shown for CE
compliance.
EN0R8402 R4 1998 2
T6370/T637 T6370/T6371 FAN -COIL THERMOSTATS FAN ONLY CONTROL1
INSTALLATION
OPERATION
wall or on a conduit box (see diagram). Mounting screws are
Application
T6370A
T6371A
T6371B
T6371C
Application
manual
Location
The XE70 Series thermostat is the temperature control
element in the fan-coil or air-conditioning system, and must
be located in a position with good air circulation, on an
inside wall about 1.5 m above the floor to sense the average
temperature. Do not position the thermostat in draughts,
near hot or cold air sources or where it will be affected by
radiant heat from the sun or other appliances.
Mounting the thermostat
Any XE70 Series thermostat can be directly mounted on the
supplied for both alternatives.
Wiring the thermostat
The standard wiring access is via a hole in the base of the
thermostat, near the top edge.
Sensing element
The thermostat sensing element comprises two circular,
flexible metal plates welded together at the rims and
encapsulating a gas/liquid combination whose pressure
changes in response to variations in temperature. This dualdiaphragm expands and contracts with ambient temperature
changes to operate a snap-acting switch which controls the
heating or cooling circuit.
Heat anticipator
It is recommended that the heat anticipator is always
connected for both heating and cooling operation.
1010 1019 1017 1015
Ventilation [ [ [ [
2-pipe fan-coil
4-pipe fan-coil
Heatpump
Air-conditioner
[ [ [ [
IMPORTANT
1. The installer must be a trained service engineer
2. Disconnect the power supply before beginning
installation
Switches
All switches are slide switches for ease of operation.
The ON/OFF switch is a system on/off switch, as it removes
power from the thermostat.
The FAN SPEED switch allows selection of 3 different fan
speeds, 1 (low), 2 (medium), and 3 (high)
The SPDT HEAT/COOL switch allows selection of either
heating or cooling operation. There is only a single output
connection capable of powering a fan or a single zone valve
in a 2-pipe fan-coil unit.
Heat or Cool [ [
Heat/cool [ [
Control Changeover (auto or manual)
Capability Fan control (auto or cont) auto auto auto auto
Fan speed control
Valve control
Compressor control
auto
[ [ [
[
EN0R8402 R4 19983
T6370/T6371 FAN -COIL THERMOSTATS FAN ONLY CONTROL
WIRING
ANTICIPATOR
HEAT HEAT
COOL
ANTICIPATOR
HEAT/COOL
LOAD
LOAD
link 4 & 5 for fan cooling, link 3 & 5 for heating
LOAD
FAN
ANTICIPATOR
COOL
FAN
ANTICIPATOR
HEAT
COOL
FAN
Honeywell Control Systems Limited http://europe.hbc.honeywell.com
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
EN0R8402 R4 1998
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