1
TCA2
Modbus
Fan
coil
Thermostat
￭
Application
The
TCA2
Series
Touch
Screen
Fan
Coil
Thermostats
control
the
fan
coil
with
local
temperature
to
get
comfortable
environment.
Select
the
temperature
scales
and
set
points,
the
modes,
and
the
different
values
to
control
the
Heating,
Ventilating,
and
Air
Conditioning
(HVAC)
system,
maintain
the
desired
room
temperature.
The
optional
Occupied/Unoccupied
feature
saves
energy.
TCA2
features
with
microcomputer
control,
large
LCD
screen
display,
and
displays
the
status
of
work
mode(cooling/heating/vent),
fan
speed,
indoor
temperature
and
set
temperature
etc...
Capacitance
touch
screen
enhances
the
fluency
on
operation.
Keypad
includes:
Power
on/off
(
),
Mode
selection
(M),
Fan
Speed
selection(
),
Clock/Timer(
)
and
two
adjustment
buttons(
＆
)
￭
Installation
Install
the
TCA2
where
the
occupant
can
read
the
display
and
adjust
the
set
point
easily.
Situate
the
thermostat
where
the
temperature
is
representative
of
the
general
room
conditions.
Avoid
installing
near
cold
or
warm
air
drafts,
radiant
heat,
on
an
outside
wall,
or
in
direct
sunlight.
￭
Mounting
Mount
the
TCA2
Series
thermostat
to
a
75x75x5mm
standard
electrical
wall
box.
(See
Figure
3)
Follow
the
instruction
in
Removing
the
Base
and
then
proceed
to
the
Wall
Mounting
and
the
Wiring
sections.
Note:
All
TCA2
Series
models
require
two
No.Mx5
mounting
screws
(Include
in
the
box,screw
PWT
.5X5X5.5
is
required
if
missing).
Figure 2:
Installation diagram
Note:
When
wiring
the
TCA2
Series
Thermostat
use
wire
nuts
to
finish
and
isolate
each
connection,
wire
according
to
Figure
3
.
￭
Instructions
•
On/Off
Setting:
Press
“
”
to
turn
on,
press
again
to
turn
off,
close
the
fan
an
d
valve.
•
Mode
Selection:
Press
“
M
”
to
change
the
working
mode,
“
”
for
Cooling
，
“
”
for
Heating,
“
”
for
venting.(
key
“
M
”
is
unavailable
under
auto
mode.When
setting
temperature
is
more
than
1
℃
higher
than
indoor
temperature,
the
mode
will
change
to
heating
automatically,
When
setting
temperature
is
more
than
1
℃
lower
than
indoor
temperature,
the
mode
will
change
to
cooling
automatically.)
•
Temperature
Setting:
Press
either
“ ”
or
“ ”
button
to
increase
or
decrease
by
1
℃
.
•
Fan
Speed
Adjustment:
Cooling
or
Heating
Mode
Operation
TCA2,
has
4
speeds
fan
control:
Auto
“
”、
High
“
”、
Middle
“
”、
Low
“
”
fan.
Short
press
the
“ ”
button
switches
through
the
sequence.
Содержание TCA2
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