Pro1 Technologies T755WH Installation Manual page 7

Technician Setup
Tech Setup Steps
When turned on the thermostat
will operate a heat pump.
1. EM. Heat will show as an option
in the system switch.
Heat Pump
2. Y will be first stage of heat
& cool, W/E will be emergency
heat relay & W2 will be auxiliary
heat relay.
You can configure the system
switch for the particular appli-
cation.
Heat - Off - Cool, Heat - Off, Cool -
System Set
Off, Heat - Off - Cool - Auto
Note: EM. Heat will show if in
heat pump mode.
Select GAS for systems that
control the fan during a call for
heat.
Fan
Select ELEC to have the
Operation
thermostat control the fan during
a call for heat. Will not appear if
Heat Pump is "ON".
For Dual Fuel applications (Gas/
Fossil fuel Auxiliary Heat), turn
Dual Fuel
this setting ON to LOCKOUT the
Auxiliary for
Heat Pump (Y) when Auxiliary
Heat
Heat (W2) is on. If desired - This
can also be used with Electric
Pump
Auxiliary.
Will only appear
if Heat pump
setting is turned
ON.
The cooling fan delay setting will
delay the fan from coming on in
cool mode and keep it running
Cooling Fan
after the compressor shuts off
for a short time to save energy in
Delay
some systems.
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Technician Setup
Tech Setup Steps
Option for how DHM terminal
energizes.
DHM
Note: Set as option 1 if DEHUM
Terminal
with AC is set to YES.
You can configure the D Terminal
as normally-open or normally
closed.
Dehumidify
NO= Normally Open
Relay
NC= Normally Closed
See Note Below
This feature allows the ther-
mostat to keep multiple stages
Satisfy
of heat or cool energized until
Setpoint
setpoint is satisfied.
This feature allows a delay to
occur when a second and third
Staging
stage is needed. This allows the
Delay
previous stage extra time to
satisfy setpoint.
Note: When the dehumidify terminal is configured as normally-closed,
the base module D terminal LED indicator will be lit when the relay is
closed. When the thermostat calls for dehumidification, the D terminal
LED indicator will turn off.
HUM Terminal
HUM terminal energizes when the ambient
OPTIONS
humidity is...
Below the humidity setpoint and heat or
1
fan is energized.
Below the humidity setpoint and heat is
2
energized.
Below the humidity setpoint. It will also
3
energize the fan during a call for humidity.
4 Below the humidity setpoint.
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Adjustment Options
LCD Will Show
OFF configures the thermostat
OFF
for non heat pump systems.
ON configures the thermostat
for heat pump systems.
Use the or key until
the desired application is
flashing.
SYSTEM
AUTO - Auto Changeover
SET
GAS
GAS
or
ELEC
OFF Will allow Y(1st stage of
OFF
Heat) and W2 (Aux Heat) to
run together if called for.
ON Will de-energize Y termi-
A6
nal 45 seconds after a call for
Auxiliary Heat (W2).
You can set the cooling fan
OFF
delay to OFF, 15, 30, 60 or 90
seconds. If 15, 30, 60, or 90 is
selected the fan will not turn
on for that many seconds
COOL
when there is a call for cool
and will run for that many
FAN
seconds after satisfying a call
DELAY
for cool.
LCD Will Show Adjustment Options
Use the or key to
3
select the one of the four
options.
View the DEHUM terminal
chart below for an
dHM
explanation of these options.
TERMINAL
Use the or key to
select NO or NC.
If NO is selected, D will
energize to dehumidify. If
NC is selected, D will be
normally energized. D will
dEHUMIDIFY
de-energize to dehumidify.
dELAY
Use the or key to
OFF
turn on or off.
SS STAGING
Use the or key to se-
OFF
lect the number of minutes
to delay each stage.
OFF 5, 10, 15, 30, 45, 60, 90
STAGING
delay minutes.
DELAY
DHM Terminal
DUM terminal energizes when the ambient
OPTIONS
humidity is...
Above the humidity setpoint and cool or fan
1
is energized.
Above the humidity setpoint. It will also
2
energize the fan during a call for dehumidity.
3 Above the humidity setpoint.
Above the humidity setpoint and the
4
compressor is not running.
Technician Setup
Default Tech Setup Steps
Enables the use of an outdoor
sensor. Connecting an outdoor
sensor allows for a balance point
OFF
setting. Selecting YES requires the
Outdoor master thermostat to be powered
with 24V on C and R terminals.
Sensor
See the outdoor sensor guide for
more information.
HEAT
Enables the use of up to four
OFF
indoor sensors.
COOL Selecting YES requires the master
thermostat to be powered with
Remote
24V on C and R terminals.
Sensor
GAS
This step connects the indoor
sensor with the master
thermostat. The previous step
remote sensor must be set to
YES in order to connect an indoor
Finding
sensor.
Sensor
OFF
Disable the sensor on the master.
At least one indoor remote sensor
Local Temp
must be connected to disable the
Sensor
local sensor.
Turns on the heat for 10 minutes
each hour if unable to communi-
cate with the master thermostat
OFF
Freeze
if there has been a call for heat in
the last 24 hours.
Protection
Technician Setup
Default
Note:
Up to four indoor temperature sensors can be connected to one
thermostat. This allows for 5 sensing points (zones). For example: the
1
local (thermostat) plus four indoor sensors enables 5 sensing points.
To connect an indoor sensor to a thermostat, select 1 on the FINDING
SENSOR technician setup step. Then hold down the light button on the
indoor sensor until it beeps, while in ZONE technician setup step on the
indoor sensor. To connect a second indoor sensor change the
thermostat to read 2 and change the indoor sensor to zone 2. The zone
setting must match between the thermostat and the indoor sensor to
NO
connect. When the connection is established the thermostat will show
FOUND + NAME of the indoor sensor in the system information area of
display.
OFF
Balance Point:
The system operates differently when a balance point is used. On a dual
fuel system, the balance point outdoor temperature setting will be the
outdoor temperature at which the thermostat chooses either the heat
pump or gas furnace. For example: A balance point setting of 30°F will
turn on only the heat pump above 30°F and only the gas furnace below
OFF
30°F. Y1 will be stage one above 30°F and W2 will be stage one below
30°F. A heat pump with electric auciliary will energize the heat pump
above and below balance point. The electric auxiliary will only energize
below balance point. For Example: A balance point setting of 40°F, will
turn on the heat pump above 40°F and turn on the heat pump and
electric auxiliary below 40°F.
Reminders
Once a reminder has been turned on and set, the elapsed time can be
checked by navigating to its tech setup step. The elapsed time will then
appear in the text field. It can also be reset at that time by holding down
the set CLEAN button for 3 seconds. Resetting an expired
reminder can be done without entering tech setup, by holding down
the set CLEAN button for 3 seconds from the home screen.
Adjustment Options
LCD Will Show
When NO is selected the
thermostat is unable to
connect to an outdoor
remote sensor. When YES
is selected the thermostat
is able to connect to an
outdoor remote sensor. Press
and hold connect button
on outdoor sensor until the
master thermostat says
OUTDOOR
FOUND OUTDOOR on display.
SENSOR
When NO is selected the
thermostat is unable to
connect to an indoor remote
sensor. When YES is selected
the thermostat is able to
connect to up to four indoor
remote sensors. Go to the
next step FINDING SENSOR to
REMOTE
connect remote sensors.
SENSOR
The number shown
1
represents the zone.
Use or to select the
zone you wish to connect.
The zone setting on the
master and the indoor
sensors must be the same to
connect. See indoor sensors
user guide for detailed
connection information.
See note below for more
FINDING
information.
SENSOR
YES enables local sensor.
YES
NO disables local sensor.
LOCAL
TEMP
SENSOR
YES enables freeze protection.
NO disables freeze protection.
FREEZE
PROTECTION
Default
NO
NO
1
YES
YES
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