Pro 1 IAQ TRUE COMFORT III T605-2 User manual

This manual covers the following models:
• T605-2
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)
Installation Tips
Thermostat Quick Reference
Subbase Installation
Wiring
Wiring Diagrams
Technician Setup
Technician Setup Menu
Mounting and Battery Installation
Programming the Thermostat
Programming the Thermostat (cont)
Specifications
Table of Contents
Thermostat Applications Guide
Page
Battery Power
Hardwire (Common Wire)
Hardwire (Common Wire) with Battery Backup
Power Type
1
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
Heat Only Systems - Floor or Wall Furnaces
Cool Only Systems
Millivolt
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Rev. 1043
Una versión española de este
manual puede ser descargada
en www.pro1iaq.com
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® U.S. Registered Trademark. Patents pending.
Copyright © 2010 Pro1 IAQ, Inc. All rights reserved.

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
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.
Getting to know your thermostat
2Fan Switch
3System Switch
4Easy Change Battery Door
5Setpoint Buttons
6User Buttons
7Universal Private Label Badge
6
7
1
23
4
5
LCD
1System operation
indicators: ON will
display when the
COOL or HEAT is on.
NOTE: The compressor delay
feature is active if ON is
flashing. The compressor will
not turn on until the 5 minute
delay has elapsed.
Days of the
week and time
Low Battery Indicator:
Replace batteries when
indicator is shown.
Indicates the
current room
temperature.
Displays the user
selectable setpoint
temperature.
HOLD is displayed when
thermostat program is
permanently overridden.
Programmable
Time Periods:
This thermostat has
4 programmable time
periods per day.
Wake, Leave, Return, Sleep

UP
C
O
B
W
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.
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.
RH
RC
G
Y

WIRING
5
Caution: Electrical Hazard
Failure to disconnect the power
before beginning to install this
product can cause electrical
shock or equipment damage.
Warning:
All components of the control
system and the thermostat
installation must conform to
Class II circuits per the NEC Code.
RH & RC terminals
For single transformer systems, leave the jumper
wire in place between RH and RC. Remove jumper
wire for two transformer systems.
Heat pump systems
If wiring to a heat pump, use a small piece of wire
(not supplied) to connect terminals W and Y.
C terminal
The C (common wire) terminal does not
have to be connected when the
thermostat is powered by batteries.
Wire specifications
Use shielded or non-shielded
18 - 22 gauge thermostat wire.
PRO1 Tips:
Wiring
Terminal Designations
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.
1.
2.
3.
Heat relay
Compressor relay
Fan relay
Heat pump changeover valve
energized in cooling
Transformer power for cooling
Transformer power for heating
Heat pump changeover valve energized
in heating
Common wire from system transformer
W
Y
G
O
RC
RH
B
C

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WIRING DIAGRAMS
O
B
Typical 1H/1C system: 1 transformer
Power supply
Factory-installed jumper. Remove only when installing on 2-transformer systems.
Use either O or B terminals for changeover valve.
Use a small piece of wire (not supplied) to connect W and Y terminals.
Set fan operation switch to electric.
Optional 24 VAC common connection when thermostat is used in battery power mode.
RC
RH
Y
C
W
G
C
L2
L1 (HOT)
R
HEAT RELAY
FAN RELAY
COMPRESSOR
RELAY
6
21
FAN RELAY
COMPRESSOR
RELAY
6
2
HEAT RELAY
FAN RELAY
6
2
Typical 1H/1C heat pump system
C
L2
L1 (HOT)
R
HEAT CHANGE
OVER VALVE
FAN RELAY
COMPRESSOR
RELAY
6
4
2
5
1
C
L2
L1 (HOT)
R
HEAT RELAY
6
2
1
Typical 1H/1C system: 2 transformer
Typical heat-only system
Typical heat-only system with fan Typical cool-only system
C
L2
L1 (HOT)
R
HEAT RELAY
FAN RELAY
REMOVE JUMPER
COMPRESSOR
RELAY
6
1
C
L2
L1 (HOT)
R1
2
3
COOL CHANGE
OVER VALVE
C
L2
L1 (HOT)
R1
C
L2
L1 (HOT)
R1
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G

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TECHNICIAN SETUP MENU
Fahrenheit/Celsius Display
12 or 24 Hour Time
Gas or Electric Setup
Gas: For systems that control the fan
during a call for heat, put the fan
operation switch to the GAS position.
Electric: The thermostat operation
switch should be put in the ELEC
position. This setting allows the
thermostat to operate the fan when
the fan relay is connected to the
Gterminal.
Select For Cwith the jumper pin on the
back of the thermostat. Fis for
Fahrenheit and Cis for Celsius.
12 or 24 hour (military time) can be
selected with the jumper pin.
Important:
The RESET button must be pressed
after changing any switch or jumper
pin setting. Batteries must be
installed for this operation.
12 or 24 hour
jumper pin
Select For C
with the jumper pin
Reset button

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TECHNICIAN SETUP MENU
Temperature swing, sometimes called differetial 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.
PRO1 Tip
Technician Setup Menu
This thermostat has a technician setup menu
for easy installer configuration. To setup 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 Program key
to move from one option to the next.
Note: Only press Hold/Run key when
you want to exit the Technician Setup
options.
Move the SYSTEM switch to OFF.
Press and hold the and buttons
together 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 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 ±04°F to
±20°F. For example:
A swing setting of
05°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 ±04°F to
±20°F. For example:
A swing setting of
05°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.
Feature
Description
Adjustment
Options
LCD Will Show
Factory
Default Settings Off 0 ºF Off On 0.5 ºF 0.4 ºF
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.
Minimum
Compressor
On Time
Compressor
Short Cycle
Delay
Cooling
Swing Heating Swing
Room
Temperature
Calibration
Filter
Change
Reminder
Feature
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.

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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.

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PROGRAMMING THE THERMOSTAT
Set Time
Programming
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 TIME
Day of the week will be flashing. Use the or key to select the current
day of the week.
Press TIME
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 TIME
Minutes are now flashing. Use the or key to select current minutes.
Press HOLD/RUN when completed.
1.
2.
3.
4.
5.
6.
7.
All programmable Pro1 thermostats are shipped with an energy saving pre-program.
You can customize this default program by following the steps below.
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).

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PROGRAMMING THE THERMOSTAT
Weekday Wake
Leave
Return
Sleep
Programming Table
Saturday
Sunday
Day of the
Week
Setpoint
Temperature
(Cool)
Setpoint
Temperature
(Heat)
Time
Events
You can use the table below to plan your customized program schedule.
Set Program Schedule
To customize your program schedule, follow these steps:
Weekday: Saturday:
Sunday:
Select HEAT or COOL from the system switch.
Note: You have to program heat and cool each
separately.
Press PROGRAM
Monday-Friday is displayed and WAKE 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.
Press PROGRAM
The setpoint temperature is flashing. Use the or
key to make your setpoint selection for the weekday
wake period.
Press PROGRAM
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

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
32º to +105º (0º to +41ºC)
90% non-condensing maximum
4.7”W x 4.4”H x 1.1”D
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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