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T721
Installation Manual
Pro1 Technologies
Toll Free: 888-776-1427
Web: www.pro1iaq.com
Hours of Operation: M-F 9AM - 6PM Eastern
Thermostat Application Guide Power Type
Battery Power
Hardwire (Common Wire)
Hardwire (Common Wire) with
Battery Backup
Table of Contents
Specications
Installation Tips
Thermostat Quick Reference
Wiring
Technician Setup
Page
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.
Una version en español de este
manual se puede descargar en
la pagina web de la compañia.
Rev. 1751
U.S. Registered Trademark. Patents pending
Copyright 2017 All Rights Reserved.
Specications
The display range of temperature ... 41˚F to 95˚F (5˚C to 35˚C)
The control range of temperature.... 44˚F to 90˚F (7˚C to 32˚C)
Swing (cycle rate or dierential) ...... Heating is adjustable from 0.2˚ to 2.0˚
Cooling is adjustable from 0.2˚ to 2.0˚
Power source ...........................................18 to 30 VAC, NEC Class II, 50/60 Hz
for hardwire
Battery power from 2 AA Alkaline
batteries
Operating ambient ............................... 32˚F to +105˚F (0˚C to +41˚C)
Operating humidity .............................. 90% non-condensing maximum
Dimensions of thermostat ................. 4.7”W x 4.4”H x 0.8”D
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.
Battery Installation
Battery installation is recommended even if thermostat is hardwired
(C terminal connected). When thermostat is hardwired and batteries
are installed, the thermostat will activate a compressor delay of 5
minutes when the thermostat detects a power outage from the
hardwired power supply.
Important:
High quality alkaline batteries are recommended.
Rechargeable batteries or low quality batteries
do not guarantee a 1-year lifespan.
Insert 2 AA
Alkaline batteries
(included). High
quality alkaline
batteries are
recommended.
Simple
operating
instructions
are found
on the back
of the
battery
door.
Installation Tips
2-3
4
5-6
7-8
1
Installation Tips Thermostat Quick Reference
Getting to know your thermostat
Glow in the dark light button
Fan switch
System switch
Easy change battery door
Temperature setpoint buttons
LCD
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 screen
will only show the low battery indicator but
maintain all functionality. If the user fails to
replace the batteries after an additional 21 days
(days 22-42 since rst “low battery” display) the
setpoints will change to 55˚F (Heating) and 85˚F
(Cooling). If the user adjusts the setpoint away
from either of these, it will hold for 4 hours
then return to either 55˚F or 85˚F. After day 63
the batteries must be replaced immediately to
avoid freezing or overheating because the
thermostat will shut the unit o until the
batteries are changed.
Important
Removing The Private
Label Badge
Gently slide a screwdriver into the
bottom edge of the badge. Gently turn
the screwdriver counter clockwise. The
badge is held on by a magnet in the well
of the battery door. The badge should pry
o easily. DO NOT USE FORCE.
About The Badge
All of our thermostats use the same universal magnetic badge. Visit the
company website to learn more about our free private label program.
Magnet in door
Subbase Installation
The thermostat should be installed approximately 4 to 5 feet above the
oor. Select an area with average temperature and good air circulation.
• 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
Wall Locations
Vertical Mount
Horizontal Mount
For vertical mount put one screw on the
top and one screw on the bottom.
For horizontal mount put one screw on
the left and one screw on the right.
All of our 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.
Pick an installation location that is easy for
the user to access. The temperature of the
location should be representative of the
building.
Installation Tip
Mercury Notice
Do not install
thermostat in locations:
Failure to disconnect the power before
beginning to install this product can
cause electrical shock or equipment
damage.
Installation Tip:
Electrical Hazard
Description
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 Furnace
Cool Only Systems
Millivolt Conventional Systems
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Two Transformer Systems No
=
88
Room Temperature
o
88
Set At
C
F
LOW
Displays the
selected setpoint
temperature.
System Operation
Indicators:
The COOL, HEAT,
EmH or icon will
display when
the COOL, HEAT, or
(fan) is on.
NOTE: The
compressor delay
feature is active if
these icons are
ashing. The
compressor will not
turn on until the 5
minute delay has
elapsed.
Low Battery Indicator:
Replace batteries when
indicator is shown.
Indicates the current
room temperature.
COOL ON
HEAT ON
EmH ON
Stage 1 & 2
Stage 1 and 2 indicate the
stages of HEAT that are active.
Use the bevel on lower ridge
P.O. Box 3377
Springeld, MO 65808-3377
Wiring
Wiring Diagrams
Technician Setup Technician Setup
Caution:
Electrical Hazard
All components of the
control system and the
thermostat installation must
conform to Class II circuits
per the NEC Code.
Warning:
Do not overtighten terminal
block screws, as this can
damage the terminal block.
A damaged terminal block
can keep the thermostat
from tting on the subbase
correctly or cause system
operation issues.
Installation Tip
Max Torque = 6in-lbs.
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 G terminal.
Loosen the terminal block
screws. Insert wires then
retighten terminal block screws.
Place nonammable insulation
into wall opening to prevent
drafts.
1.
2.
3.
Terminal Designations
R
Failure to disconnect the power
before beginning to install this
product can cause electrical
shock or equipment damage.
C
B
O
G
W/E
W2
Y
Heat Pump System
1 HEAT 1 COOL / 2 HEAT 1 COOL
Conventional System
1 HEAT 1 COOL / 2 HEAT 1 COOL
Transformer Power
Transformer Common
Changeover Valve
Energized in HEAT
Fan Relay
First Stage of Emergency HEAT
Changeover Valve
Energized in COOL
Second Stage of HEAT/
EMERGENCY HEAT
First Stage of HEAT and COOL
Transformer Power
Transformer Common
Fan Relay
First Stage of HEAT
Second Stage of HEAT
First Stage of COOL
Energized in HEAT
Energized in COOL
Power supply
Use either O or B terminals for changeover valve.
Optional 24 VAC common connection when thermostat is used in battery power mode.
Factory-supplied jumper
R
Y
C
W/E
G
W2
O
B
COMPRESSOR
RELAY
FAN RELAY
AUXILIARY
COOL CHANGE
OVER VALVE
HEAT CHANGE
OVER VALVE
C
R
L2
L1(HOT)
2H/1C Heat Pump System - Factory Default Setting
Typical 2H/1C Heat Pump System with separate emergency heat
R
Y
C
G
W2
COMPRESSOR
RELAY
EMERGENCY
RELAY
AUXILIARY
COOL CHANGE
OVER VALVE
HEAT CHANGE
OVER VALVE
O
B
C
R
L2
L1(HOT)
FAN RELAY
Note: In many systems
with no emergency heat
relay a jumper can be
used between E and W2.
Conventional System 1H/1C, 2H/1C (Heat pump set to “OFF” in tech settings)
Note: This
thermostat is only
compatible with
ONE transformer
systems.
R
Y
C
G
W2
COMPRESSOR
RELAY
HEAT RELAY
FAN RELAY
HEAT RELAY 2
C
R
L2
L1(HOT)
1. with the System Switch for Select OFF Tech Settings. Select Heat or Cool for Swing
and Limit settings. They are set separately.
2. Hold down the + and - buttons together for 3 seconds.
3. Use the + and - to change setting for that step, and the glow in the dark light button to
move from one step to another.
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 o.
Selecting “ON” will not allow
the compressor to be turned
on for 5 minutes after the
last time the compressor
was switched o. Select
“OFF” to remove this delay.
0
This feature allows the installer
to change the calibration of the
room temperature display. For
example, if the thermostat reads
70 degrees and you would like it
to read 72 then select +2.
0
CA
Room
Temperature
Calibration
You can adjust the room
temperature display to
read 4˚above or below the
factory calibrated reading.
Compressor
Short Cycle
Delay
0N
Cd
Select F for Fahenheit
temperature read out or select C
for Celsius read out.
F for Fahrenheit
C for Celsius
F or C
F
F
FC
o
0.8
The swing setting often called
“cycle rate”, “dierential” 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.
Tech Settings
Heating
Swing
Tech Settings
Tech Settings
Adjustment Options Default
LCD Will Show
Adjustment Options Default
LCD Will Show
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.
EL - Electric for thermostat
control
GS- Gas for system control
Fan
Operation
EL
When set to ON this thermostat
will operate a heat pump system
(default). If set to OFF this
thermostat will operate a
conventional system, and the next
tech step will not appear.
ON - Congured to operate
heat pump system.
OFF - Congured to operate
conventional system
See page 5 for terminal
designations.
Heat Pump
ON
For Dual Fuel applications (Gas/
Fossil fuel Auxiliary Heat), turn
this setting ON to LOCKOUT the
Heat Pump (Y) when Auxiliary
Heat (W2) is on. If desired- This can
also be used with Electric Auxiliary.
OFF will allow Y(1st stage of
Heat) and W2 (Aux Heat) to run
together if called for.
ON Will de-energize Y terminal
45 seconds after a call for
Auxiliary Heat (W2).
Dual Fuel
Auxiliary for
Heat Pump
Will only appear if
Heat Pump setting is
turned ON
OFF
This feature allows the thermostat
to keep multiple stages of heat
energized until setpoint is
satised.
Use the or key to
turn ON or OFF.
Satisfy
Setpoint
OFF
This feature allows a delay to occur
when a second stage is needed.
This allows the previous stage
extra time to satisfy setpoint.
Use the or key to
select OFF, 5, 10, 15, 30, 45,
60, or 90 minutes.
Staging
Delay
OFF
0.8
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
approximately 0.5˚ below the
setpoint and turn the heating o
at approximately 0.5˚ above the
setpoint.
The swing setting often called
“cycle rate”, “dierential” or “
anticipation” is adjustable. A
smaller swing setting will cause
more frequent cycles and a larger
swing setting will cause fewer
cycles.
Cooling
Setpoint
Limit
44
To exit setup slide the system switch to dierent position or wait approximately 20 seconds.
Heating
Setpoint
Limit
90
This feature allows you to set a
minimum cool setpoint value.
The setpoint temperature can’t be
lowered below this value.
Use the and key to select
the minimum cool setpoint.
This feature allows you to set a
maximum heat setpoint value.
The setpoint temperature can’t
be raised above this value.
Use the and key to select
the maximum heat setpoint.
This feature controls the number
of stages in Emergency Heat
mode. It only appears if the
Technician Setup Step for HEAT
PUMP is ON.
Use the or key to
select 1-stage or 2-stage
operation.
Emergency
Heat Stages
1
Swing and Limit Settings
Adjustment Options
Default
LCD Will Show
W/E
W/E
Produktspecifikationer
| Varumärke: | Pro1 |
| Kategori: | Termostat |
| Modell: | T721 |
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