Pro 1 IAQ T755H User manual

This manual covers the following models:
• T755H
INSTALLATION MANUAL
A trained, experienced technician
must install this product.
Carefully read these instructions. You
could damage this product or cause a
hazardous condition if you fail to follow
these instructions.
Need Help?
For assistance with this product please
visit http://www.pro1iaq.com or call Pro1
Customer Care toll-free at 888-Pro1iaq
(776-1427) during normal business hours
(Mon-Fri 9 AM - 6 PM Eastern)
Table of Contents
Thermostat Applications Guide
Page
Battery Power
Hardwire (Common Wire)
Hardwire (Common Wire) with Battery Backup
Power Type
1
Rev. 1021
Una versión española de este
manual puede ser descargada
en www.pro1iaq.com
® U.S. Registered Trademark. Patents pending.
Copyright © 2010 Pro1 IAQ, Inc. All rights reserved.
Installation Tips
Thermostat Quick Reference
Subbase Installation
Wiring
Technician Setup Menu
Setting The Humidity
Mounting and Battery Installation
Programming The Thermostat
Specifications
2
3
4
5
6-9
10
11
12-13
14
noitpircseD
Gas or Oil Heat
Electric Furnace
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (with Aux. or Emergency Heat)
Multi-stage Systems
Heat Only Systems
Cool Only Systems
Millivolt
Any HVAC System up to 3H/2C with
standard low voltage controlled humidifier.
Any HVAC System up to 3H/2C with
standard low voltage controlled de-humidifier.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes

INSTALLATION TIPS
The thermostat should be installed approximately 4 to 5 feet above the floor.
Select an area with average temperature and good air circulation.
Do not install thermostat in locations:
• Close to hot or cold air ducts
• That are in direct sunlight
• With an outside wall behind the thermostat
• In areas that do not require conditioning
• Where there are dead spots or drafts (in corners or behind doors)
• Where there might be concealed chimneys or pipes
• Where appliances could radiate heat
Pick an installation location that is easy for the user to access.
The temperature of the location should be representative of the building.
Wall locations
2
PRO1 Tip
NO
NO NO YES

3
Getting to know your thermostat
2
Fan Button
Light Button (Glow in the Dark)
3
System Button
4
User Program Buttons
5
Temperature Setpoint Buttons
6
Universal Private Label Badge
7Battery Door
8
6
7
8
1
2
34
5
Important:
The low battery indicator is displayed
when the AA battery power is low. If the
user fails to replace the battery within
21 days, the thermostat display will only
show the low battery indicator as a final
warning before the thermostat
becomes inoperable. The batteries are
located on the front of the thermostat.
LCD
1
+1 will appear in
the display when
second stage of
heat or cool is on.
+2 will appear for
third stage of heat.
System:
Select heat, off or cool
as needed.
Displays the days of the
week and time, or the
current ambient
humidity level.
Low Battery Indicator:
Replace batteries when
this indicator is shown.
Menu Options:
Shows different
options
Indicates the
current room
temperature.
Programmable
Time Period Icons:
This thermostat has
4 programmable time
periods per day.
Displays the user
selectable setpoint
temperature. HOLD is displayed when
thermostat program is
permanently overridden.
The COOL, HEAT or FAN icon will display when the COOL,
HEAT or FAN is on. NOTE: The compressor delay feature is
active if these icons are flashing. The compressor will not
turn on until the 5 minute delay has elapsed.

SUBBASE INSTALLATION
4
Caution:
Electrical Hazard
Failure to disconnect the
power before beginning to
install this product can cause
electrical shock or equipment
damage.
Mercury Notice:
All of Pro1’s products are
mercury free. However, if the
product you are replacing
contains mercury, dispose of it
properly. Your local waste
management authority can give
you instructions on recycling
and proper disposal.
NOTE: To insure a
solid fit between
the thermostat and
the subbase,
mount the subbase
on a flat wall with
the drywall anchors
flush to the wall.
UP
Horizontal mount
Horizontal mount
Vertical mount
Vertical mount
For vertical mount put
one screw top and one
screw bottom.
For horizontal mount put
one screw left and one
screw right.
C
O
B
W/E
W2
H
RH
RC
G
Y
Y2
D

WIRING
5
C terminal
The C(common wire) terminal does not
have to be connected when the thermostat is
powered by batteries.
Pro1 Tips:
Terminal Designations
Terminal 2 Heat 2 Cool
Conventional System
2 Heat 2 Cool
Heat Pump System 3 Heat 2 Cool Heat Pump System
RC
RH
C
B
O
G
W/E
W2
Y
Y2
H
D
Transformer power (cooling)
Transformer power
(heating)
Transformer common
(For 2 transformer systems,
use RH common.)
Energized in heating
Energized in cooling
Fan relay
First stage of heat
Second stage of heat
First stage of cool
Second stage of cool
Humidify
Dehumidify
Transformer power
(cooling)
Transformer power
(heating)
Transformer common
Heat pump changeover valve
energized in heating
Heat pump changeover valve
energized in cooling
Fan relay
Emergency heat relay
Auxiliary heat relay,
second stage of heat
First stage of heat & cool
Second stage of cool
Humidify
Dehumidify
Transformer power
(cooling)
Transformer power
(heating)
Transformer common
Heat pump changeover valve
energized in heating
Heat pump changeover valve
energized in cooling
Fan relay
Emergency heat relay
Auxiliary heat relay,
third stage of heat
First stage of heat & cool
Second stage of cool
& second stage of heat
Humidify
Dehumidify
This thermostat is shipped from the factory to operate a conventional heating and cooling system. This thermostat will
also operate a heat pump system. See the “heat pump” configuration step on page 8 of this manual to configure the
thermostat for heat pump applications.
Warning:
All components of the control
system and the thermostat
installation must conform to
Class II circuits per the NEC Code.
Note:
In many systems with no emergency
heat relay a jumper can be installed
between E and W2.
Wiring
If you are replacing a thermostat, make note of
the terminal connections on the thermostat that
is being replaced. In some cases the wiring
connections will not be color coded. For
example, the green wire may not be connected
to the Gterminal.
Loosen the terminal block screws. Insert wires
then retighten terminal block screws.
Place nonflammable insulation into wall
opening to prevent drafts.
Push wire into the wall so the thermostat can
mount securely to the subbase.
1.
2.
3.
4.
Wire specifications
Use shielded or non-shielded
18 - 22 gauge thermostat wire.

6
TECHNICIAN SETUP MENU
Technician Setup Menu
This thermostat has a technician setup menu
for easy installer configuration. To set up the
thermostat for your particular application:
Configure the installer options as
desired using the table below.
Use the or keys to
change settings and the NEXT STEP
or PREV STEP key to move from one
option to another. Note: Only press
DONE key when you want to exit the
Technician Setup options.
Press MENU button
Press and hold TECH SETUP button for 3
seconds. This 3 second delay is designed
so that homeowners do not accidentally
access the installer settings.
1.
2.
3.
This feature will flash
FILT in the display
after the elapsed run
time to remind the
user to change the
filter. A setting of
OFF will disable this
feature.
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.
The compressor short
cycle delay protects the
compressor from “short
cycling”. This feature will
not allow the compressor
to be turned on for 5
minutes after it was last
turned off.
The swing setting, often
called “cycle rate”,
“differential” or
“anticipation” is
adjustable. A smaller
swing setting will cause
more frequent cycles and
a larger swing setting will
cause fewer cycles.
The swing setting, often
called “cycle rate”,
“differential” or
“anticipation” is
adjustable. A smaller
swing setting will cause
more frequent cycles and
a larger swing setting
will cause fewer cycles.
The heating swing
setting is adjustable
from ±0.2°F to ±2°F.
For example: A swing
setting of 0.5°F will
turn the heating on at
approximately 0.5°F
below the setpoint and
turn the heating off at
approximately 0.5°F
above the setpoint.
The cooling swing
setting is adjustable
from ±0.2°F to ±2°F.
For example: A swing
setting of 0.5°F will turn
the cooling on at
approximately 0.5°F
above the setpoint and
turn the cooling off at
approximately 0.5°F
below the setpoint.
Selecting ON will not
allow the compressor to
be turned on for 5
minutes after the last
time the compressor was
on. Select OFF to
remove this delay.
You can select the
minimum compressor
run time from “off”,
“3”, “4”, or “5” minutes.
If 3, 4, or 5 is selected,
the compressor will run
for at least the selected
time before turning off.
You can adjust the
room temperature
display to read -4°F to
+4°F above or below
the factory calibrated
reading.
You can adjust the
filter change
reminder from OFF
to 2000 hours of
runtime in 50 hour
increments.
OFF 0 ºF OFF ON 0.5 ºF 0.4 ºF
TECH SETUP
STEPS CONTINUED
ON THE NEXT PAGE
This feature allows the
installer to select the
minimum run time for
the compressor.
For example, a setting of
4 will force the
compressor to run for at
least 4 minutes every
time the compressor
turns on, regardless of
the room temperature.
Tech Setup Steps
Minimum
Compressor
On Time
Compressor
Short Cycle Delay
Cooling
Swing
Heating
Swing
Room
Temperature
Calibration
Filter
Change
Reminder

7
TECHNICIAN SETUP MENU
Tech Setup Steps (Continued from the previous page)
GA
or
EL
GAS
Select GAS for
systems that control
the fan during a call
for heat.
Select ELEC to have
the thermostat
control the fan during
a call for heat.
Fan
Operation
Use the or
key to select 12 or 24
hour clock.
12 Hour Clock
You can select either a
12 or 24 hour clock
setting.
12 or 24
Hour Clock
Use the or
key to turn on or off.
ON
This feature turns your
system on before the
WAKE programming
time to ensure the
enviroment is at the
WAKE setpoint when
the WAKE time period
begins. This recovery
changes over time
based on the previous
days experience.
Morning
Recovery
Use the or
key 5d for 5+1+1,
or 0d for
non-progammable.
5d
You can configure this
thermostat to have a
5+1+1 program or
non-programmable.
Program
Options
Select Ffor Fahrenheit
temperature read out
or select Cfor Celsius
read out
ºF for Fahrenheit
ºC for Celsius
ºF
ºF or ºC
The second stage will turn on at 2x the swing setting. The second stage will turn off when 1x the
swing is reached. For example, if the swing setting is .8 degrees for heating and the thermostat is
set at 70ºF, the first stage will turn on at approximately 69.2ºF. The second stage will turn on at
68.4ºF. The second stage will turn off at 69.2ºF and the first will turn off at 70.8ºF. If third stage is
used, it will turn on at 3x the swing and turn off at approximately 2x the swing.
PRO1 Tip

8
TECH SETUP
STEPS CONTINUED
ON THE NEXT PAGE
TECHNICIAN SETUP MENU
Tech Setup Steps (Continued from the previous page)
OFF configures the
thermostat for non heat
pump systems
ON configures the
thermostat for heat
pump systems
OFF
When turned on the
thermostat will operate
a heat pump.
1. EM.Heat will show as
an option in the system
switch.
2. Y will be first stage of
heat & cool, W/E will
be emergency heat
relay & W2 will be
auxiliary heat relay.
Heat Pump
Heat - Off - Cool
You can configure the
system switch for the
particular application:
Heat - Off - Cool,
Heat - Off,
Cool - Off,
Note: EM. Heat will
show if in heat pump
mode.
System
Switch
Gas Auxiliary
for Heat Pump
Stages
of Heat
Cooling Fan
Delay
Use the or
key until the desired
application is flashing.
OFF OFF2 Stages
You can configure the
thermostat to operate
a 3 stage heat pump
system.
2H = 2 heat, 2 cool
3H = 3 heat, 2 cool
The cooling fan delay
setting will delay the
fan from coming on in
cool mode and keep
running after the
compressor shuts off for
a short time to save
energy in some systems.
You can select the
Cooling Fan Delay from
"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 when
there is a call for cool
and will run for that
many seconds after
satisfying a call for cool.
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.
This option will turn
the heat pump off 45
seconds after the auxiliary
heat relay turns on.
For 2 heat applications, the
first stage will turn off 45
seconds after the auxiliary
stage turns on.
For 3 heat applications, the
first and second stage will
turn off 45 seconds after the
auxiliary stage turns on.
For heat pump systems
that are “dual fuel” (uses
a gas furnace for auxiliary
stage heat) you can turn
this feature on to turn off
the heat pump when the
auxiliary stage of heating
has been called for.

9
TECHNICIAN SETUP MENU
HUM Terminal
Use the or
key to turn on or off.
Use the or
key to select YES or
NO.
OFF OFF
Adjustment Options
Factory Default Settings
Tech Setup Steps (Continued from the previous page)
Humidify
LCD Will Show
This feature
removes humidity
when System key
is in Cool.
If ON is selected the
humidity will be
displayed on the main
screen and HUM
terminal will energize
when humidity
setpoint is above
ambient humidity in
Heat mode.
If ON is selected the
humidity will be
displayed on the main
screen and DHM
terminal will energize
when humidity
setpoint is below
ambient humidity in
Cool mode.
If selected YES allows
over cooling to be used
to control humidity in
Cool mode. If NO is
selected the system will
not use over cooling.
View the
HUM Terminal chart
below for an explanation
of these options.
This feature adds
humidity when
System key is
in Heat.
Dehumidify
NO
This feature forces
the A/C to run
longer to remove
humidity when
needed. The A/C
will “over cool” the
room a few degrees
until the humidity
reaches the desired
setpoint.
Dehumidify
with AC
Use the or
key to select the
maximum number of
degrees of over cool.
Options are:
2, 3, 4, 5
3
The amount of over
cooling allowed when
using A/C to remove
humidity. This screen
is only shown when
ON is selected in the
“Dehumidify with AC”
tech setup step.
Over Cool
Limit
1
Options for how the
Hum terminal
energizes.
HUM
Terminal
This feature allows
the installer to
change the
callibration of the
ambient humidity
displayed.
0
Humidity
Calibration
Use the or
key to turn on or off.
Use the or
key to adjust the
calibration +/– 3.
1
Option for how the
DHM terminal
energizes.
DHM
Terminal
below the humidity setpoint and
heat or fan is energized.
below the humidity setpoint and
heat is energized.
below the humidity setpoint. It will
also energize the fan during a call
for humidity.
below the humidity setpoint.
HUM terminal energizes when
the ambient humidity is...
DHM Terminal
above the humidity setpoint and
cool or fan is energized.
above the humidity setpoint. It will also
energize the fan during a call for
humidity.
above the humidity setpoint.
above the humidity setpoint and
the compressor is not running.
DHM terminal energizes when
the ambient humidity is...
Use the or
key to select one of the
four options.
View the
DHM Terminal chart
below for an explanation
of these options.
Use the or
key to select one of the
four options.
OPTIONS
1
2
3
4
OPTIONS
1
2
3
4

10
SETTING THE HUMIDITY
Setting Target Humidity Setpoint
Ambient Humidity Display
Recommended Heating Settings:
Recommended Cooling Settings:
Follow the steps below to change your
target humidity setpoint.
Press the HUMIDITY key
Use the or key to select the
target humidity setpoint.
Press DONE when completed
The target humidity setpoint is not programmable. Unlike
temperature, humidity does not change quickly and should
not be programmed.
Humidity is only energized during heat.
Dehumidify is only energized during cool.
Heat and Cool each have their own target setpoints.
+20º and above
+10º
0º
-10º
-20º
HUMIDITY KEY
AMBIENT HUMIDITY
DAY AND TIME HON (Humidify Energzied) dON (de-humidify Energzied)
TARGET HUMIDITY
SETPOINT KEYS
Ambient humidity will flash opposite of the day and time, and HON if HEAT and FAN is energized at the same time.
Ambient humidity will flash opposite of the day and time, and dON if COOL and FAN is energized at the same time.
Consult your professional HVAC technician for recommended settings for your climate.
The table on the right shows
recommended indoor humidity levels in
relation to outdoor temperatures during
heating (adding humidity).
Increasing Humidity Outside
Temperature (0°F) Recommended Relative Humidity
35% to 40%
30%
25%
20%
15%
Note:

MOUNT THERMOSTAT & BATTERY INSTALLATION
Mount Thermostat
Align the 4 tabs on the subbase with
corresponding slots on the back of the
thermostat, then push gently until the
thermostat snaps in place.
11
Note: To insure a solid fit between
the thermostat and the subbase:
mount subbase to flat wall
use screws & anchors provided
drywall anchors should be
flush with the wall
wires should be pushed into the wall
C
O
B
W/E
W2
1.
2.
3.
4.

PROGRAMMING THE THERMOSTAT
Set Time
Programming
12
Weekday Wake 6 a.m. 70° F (21° C) 75° F (24° C)
Leave 8 a.m. 62° F (17° C) 83° F (28° C)
Return 6 p.m. 70° F (21° C) 75° F (24° C)
Sleep 10 p.m. 62° F (17° C) 78° F (26° C)
Factory Default Program
Saturday Wake 8 a.m. 70° F (21° C) 75° F (24° C)
Leave 10 a.m. 62° F (17° C) 83° F (28° C)
Return 6 p.m. 70° F (21° C) 75° F (24° C)
Sleep 11 p.m. 62° F (17° C) 78° F (26° C)
Sunday Wake 8 a.m. 70° F (21° C) 75° F (24° C)
Leave 10 a.m. 62° F (17° C) 83° F (28° C)
Return 6 p.m. 70° F (21° C) 75° F (24° C)
Sleep 11 p.m. 62° F (17° C) 78° F (26° C)
Day of the
Week
Setpoint
Temperature (Cool)
Setpoint
Temperature (Heat)
TimeEvents
Follow the steps below to set the day of the week and current time:
Press MENU
Press SET TIME
Day of the week will be flashing. Use the or key to select the current
day of the week.
Press NEXT STEP
The current hour is flashing. Use the or key to select the current hour.
When using 12-hour time, make sure the correct a.m. or p.m. choice is selected.
Press NEXT STEP
Minutes are now flashing. Use the or key to select current minutes.
Press DONE when completed
1.
2.
3.
4.
5.
6.
7.
8.
All programmable Pro1 thermostats are shipped with an energy saving pre-program. You can customize this
default program by following the Set Program Schedule.
Your thermostat can be programmed to have all the weekdays the same, a separate program
for Saturday, and a separate program for Sunday. There are four time periods for each program
(WAKE, LEAVE, RETURN, SLEEP).

PROGRAMMING THE THERMOSTAT
13
Weekday Wake
Leave
Return
Sleep
Programming Table
Saturday
Sunday
You can use the table below to plan your customized program schedule if using 5+1+1.
Set Program Schedule
To customize your 5+1+1 program schedule, follow these steps
Weekday:
Saturday:
Sunday:
Select HEAT or COOL using the SYSTEM key.
Note: You have to program heat and cool each
separately.
Press MENU
Press SET SCHED. Note: Monday-Friday is displayed and the
WAKE icon is shown. You are now programming the WAKE time
period for the weekday setting.
Time is flashing. Use the or key to make your time
selection for the weekday WAKE time period. Note: If you want
the fan to run continuously during this time period, select ON with
the FAN key.
Press NEXT STEP
The setpoint temperature is flashing. Use the or key
to make your setpoint selection for the weekday WAKE period.
Press NEXT STEP
Repeat steps 4 through 7 for weekday LEAVE time period, for
weekday RETURN time period, and for weekday SLEEP time
period.
Repeat steps 4 through 7 for
Saturday WAKE time period,
for Saturday LEAVE time
period, for Saturday RETURN
time period, and for Saturday
SLEEP time period.
Repeat steps 4 through 7 for
Sunday WAKE time period,
for Sunday LEAVE time
period, for Sunday RETURN
time period, and for Sunday
SLEEP time period.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Wake
Leave
Return
Sleep
Wake
Leave
Return
Sleep
Day of the
Week
Setpoint
Temperature (Cool)
Setpoint
Temperature (Heat)
TimeEvents

The display range of temperature
The control range of temperature
Load rating
Display accuracy
Swing (cycle rate or differential)
Power source
Operating ambient
Operating humidity
Dimensions of thermostat
41ºF to 95ºF (5ºC to 35ºC)
44ºF to 90ºF (7ºC to 32ºC)
1 amp per terminal, 1.5 amp maximum all terminals combined
± 1ºF
Heating is adjustable from 0.2ºF to 2.0ºF
Cooling is adjustable from 0.2ºF to 2.0ºF
18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire)
Battery power from 2 AA Alkaline batteries
32ºF to +105ºF (0º to +41ºC)
90% non-condensing maximum
4.7”W x 4.4”H x 1.1”D
14
SPECIFICATIONS & CONTACT INFORMATION
Specifications
Pro1 IAQ Inc.
1111 S. Glenstone
Suite 2-100
Springeld, MO 65804
Toll-free: 1-888-Pro1iaq (776-1427)
Toll Number (Outside the USA): 330-821-3600
Web: http://www.pro1iaq.com
Hours of Operation: Monday - Friday 9 AM - 6 PM Eastern