13
TECHNICIAN SETUP MENU
Use or
to select the zone
you wish to connect.
The zone setting on
the
T955W
and the
R251W
must be
the same to connect.
See
R251W
user
guide for detailed
R251W
connection
information.
See note below for
more information.
The number shown
represents the zone.
YES
enables local
T955W
sensor
NO
disables local
T955W
sensor
YES
10, 20, 30, 35, 40,
45, 50 outdoor
temperature
balance point
setting.
NO
YES
15, 30, 45, 60, 75, 90
continuous run time
minutes.
NO
YES
enables
freeze protection
NO
disables
freeze protection
YES
enables
Energy Star
feature
NO
disables
Energy Star
feature
1
YES
NO
Adjustment Options
Factory Default Settings
This step connect
R251W
to
T955W
.
The previous step
Remote Sensor
must be set to
YES
in order to connect
an
R251W
.
Disable the sensor
on the master.
At least one
R251W
indoor
remote sensor
must be
connected to
disable the local
T955W sensor.
Turns on the heat
for 10 minutes
each hour if unable
to communicate
with the
T955W
master thermostat
if there has been a
call for heat in the
last 24 hours.
Shows the Energy
Star logo when the
program meets
Energy Star
guidelines.
Tech Setup Steps (Continued from the previous page)
Finding
Sensor
Freeze
Protection
Local Temp
Sensor
LCD Will Show
NO
NO
NO
Energy Star
®
Logo
Note:
Up to four
R251W
indoor temperature sensors can be connected to one T955W. This allows for 5 sensing
points (zones).
For Example:
The local (
T955W
) plus four
R251W
sensors enables 5
sensing points. To connect an
R251W
to a
T955W
, Select
1
on the
T955W FINDING SENSOR
technician setup step. Then select Zone
1
on the
R251W
technician setup step. Then hold down the light
button on the
R251W
until it beeps, while in
ZONE
technician setup step on
R251W
. To connect a second
R251W
change the
T955W
to read
2
and change the
R251W
to zone
2
. The zone setting must match between
the
T955W
and the
R251W
to connect. When the connection is established the
T955W
will show
FOUND +
NAME OF R251W
in the system information area of the display.
Remote
Sensor
NO
Enables the use of up
to four indoor sensors
R251W
.
Selecting
YES
requires
the
T955W
master
thermostat to be
powered with 24V on
C
and
R
terminals.
When
NO
is selected
the thermostat is
unable to connect to an
indoor remote sensor
R251W.
When
YES
is selected
the thermostat is able
to connect to up to four
indoor remote sensors
R251W.
Go to the next step
FINDING SENSOR
to
connect
R251W
.
Stages
of Heat
Balance
Point
Balance
Run Time
2 Stages
You can configure the
thermostat to operate
a 3 stage heat pump
system.
2H 2C = 2 heat, 2 cool
3H 2C = 3 heat, 2 cool
This feature only shows
if Technician Setup
Step for
HEAT PUMP
is set to
ON
.
Balance point can
eliminate the need
for a fossil fuel kit.
An outdoor
temperature above
balance point will
cause the thermostat
to only allow the
Y
terminal(s) to
energize. An outdoor
temperature below
balance point will
cause the thermostat
to only allow the
W2
to energize.
Balance point run
time will allow the
W2
auxiliary
terminal to energize
even if outdoor
temperature is above
the selected balance
point temperature. If
enabled, auxiliary
will energie for the
current cycle after
the balance point
run time has
expired.
Use the or
key to change between
2 heat and 3 heat.
2 heat will use
Y1
as
first stage and
W2
as
auxiliary.
3 heat will use
Y1
as
first stage,
Y2
as
second stage and
W2
as auxiliary.
Requires R250W
Tech Setup Steps (Continued from the previous page)
