Pro1 Technologies T755 - Features and Technician Setup; Thermostat Features Overview; Technician Setup Menu Access

Features
Wiring Diagrams
9
10
11
Tech Settings
Swing Setting Tip
Temperature swing, sometimes called dierential or cycle rate, can be customized
for this individual application. For most applications choose a swing setting that is
as long as possible without making the occupants uncomfortable.
Technician Setup Menu
Tech Settings
Adjustment Options Default
Tech Settings
LCD Will Show
12
Temporary and Permanent Hold Feature
When cool or heat is turned on, the thermostat will display HOLD
and RUN SCHED on the left of your screen when you press the
or button.
Temporary Hold: At this time if you do nothing, the temperature will
remain at this setpoint temporarily for 4 hours.
Permanent Hold: If you press the HOLD key on the left of your
screen, you will see HOLD appear below the setpoint temperature in
the display. The thermostat will now permanently stay at this
setpoint and can be adjusted using the or keys.
To Return to Running Schedule: Press the RUN SCHED button on
the left of your screen to exit either temporary or permanent hold.
Filter Change Reminder
If your installing contractor has congured the thermostat to remind
you when the air lter needs to be changed, you will see FILT in the
display when your air lter needs to be changed.
Resetting the lter change reminder: When FILT reminder is
displayed, you should change your air lter and reset the reminder
by holding down the second button from the top left side of the
thermostat for 3 seconds.
(If using programming)
Typical 2H/2C System: 2 Transformer
REMOVE JUMPER
RC
RH
Y
C
W/E
G
W2
Y2
C
R
L2
L1(HOT)
C
R
L2
L1(HOT)
COMPRESSOR
RELAY
HEAT RELAY
FAN RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
Typical 2H/1C Heat Pump System
RC
RH
Y
C
W/E
G
W2
B
COMPRESSOR
RELAY
FAN RELAY
EMERGENCY
HEAT
C
R
L2
L1(HOT)
O
COOL
CHANGEOVER
VALVE
HEAT
CHANGEOVER
VALVE
This feature allows the installer
to change the calibration of the
room temperature display. For
example, if the thermostat reads
70˚ and you would like it to read
72˚ then select +2.
OFF
This feature will ash a reminder
after the elapsed run time to
remind the user to change the
lter. A setting of “OFF” will
disable this feature.
Filter Change
Reminder
You can adjust the lter
change reminder from “OFF”
to 2000 hours of runtime in
50 hour increments.
Tech Setup Steps
Room
Temperature
Calibration
0˚F
You can adjust the room
temperature display to read
up to 4˚above or below the
factory calibrated reading.
Adjustment Options Default
LCD Will Show
FILTER
OF
0
This thermostat has a technician setup menu for easy installer
conguration. To set up the thermostat for your particular application:
1. Press the MENU button.
2. Press and hold the TECH SET button for 3 seconds. This 3
second delay is designed so that homeowners do not accidentally
access the installer settings.
3. Congure the installer options as desired using the table below.
Use the or keys to change settings and the NEXT
or PREV key to move from one step to another.
Note: Only press the DONE key when you want to exit the
Technician Setup options.
4. Press the DONE key to exit.
The swing setting often called
“cycle rate”, “dierential” or
“anticipation” is adjustable. A
smaller swing setting will cause
more frequent cycles and a larger
swing setting will cause fewer
cycles.
Cooling
Swing
The cooling swing setting
is adjustable from 0.2˚ to
2˚. For example: A swing
setting of 0.5˚ will turn the
cooling on at approximately
0.5˚ above the setpoint
and turn the cooling o at
approximately 0.5˚ below
the setpoint.
0.5
0.5˚
Swing Setting Tip
The second stage will turn on at 2x the swing setting. The second stage will
turn o when 1x the swing is reached. For example, if the swing setting is .5
degrees for heating and the thermostat is set at 70˚F, the rst stage will turn
on at approximately 69.5˚F. The second stage will turn on at 69˚F. The second
stage will turn o at 69.5˚F and the rst will turn o at 70.5˚F. If the third
stage is used, it will turn on at 68.5˚F and turn o at approximately 69˚F.
COOL SWING
CALIBRATE
PTAC Medium
Fan Speed
Terminal
(Only displayed
if PTAC mode is
ON and PTAC fan
speeds is set to 3)
This setting will select the
terminal for medium fan speed
operations. The selected terminal
cannot be used for reversing valve
operations when heat pump is
enabled.
Use the and buttons
to select O/B terminals.
0
0
The swing setting often called
“cycle rate”, “dierential”, or
“anticipation” is adjustable. A
smaller swing setting will cause
more frequent cycles and a larger
swing setting will cause fewer
cycles.
Heating
Swing
The heating swing setting
is adjustable from 0.2˚ to
2˚. For example: A swing
setting of 0.5˚ will turn the
heating on at approximate-
ly 0.5˚ below the setpoint
and turn the heating o at
0.5˚ above the setpoint.
0.4˚
0.4
HEAT SWING
MED FAN TERM
PTAC Mode
This setting allows the thermostat
to operate a PTAC. This will allow
for multiple fan speeds selectable
in the next two tech settings.
Use the and buttons
to select ON/OFF.
ON
OF
PTAC MODE
This setting allows you to choose
the number of fan speeds the
thermostat will control.
G = Low Speed Fan
B/O = Medieum Speed Fan
Y2 = High Speed Fan
PTAC Fan
Speeds
(Only displayed if
PTAC mode is ON)
2
2
FAN SPEEDS
When turned on the thermostat
will operate a heat pump. EM.
Heat will show as an option in the
system switch tech setting.
Use the and button to
adjust.
Heat Pump
OFF congures the
thermostat for conventional
systems.
ON congures the
thermostat for heat pump
systems.
OFF
OF
HEAT PUMP
Use the and buttons
to select , 2 or 3.
1. Speeds: ON, Auto
2. Speeds: Low, High, Auto
3. Speeds: Low, Med, High,
Auto