Uponor A3030102 User manual

RADIANT HEATING SYSTEMS
HEAT AND COOL
THERMOSTAT
INSTRUCTION SHEET
Overview
The Uponor Heat and Cool
Thermostat (A3030102) controls
hydronic heating, air conditioning
and a fan. The six-wirethermostat
receives power from the Rh (radiant
heating) and C (cooling) terminals.
These thermostats are power-
sharing, meaning they receive power
for operation by sharing voltage
with the connected wiring. This
eliminates any need for a thirdwire
or batteries, making them simple to
install, wire and service.
Note: Uponor thermostats work
effortlessly with other Uponor
components. However,some
commonly used third-party devices
(e.g., relays, zone valves, etc.) may
have compatibility issues with these
thermostats. If connecting the
Uponor thermostat to a third-party
control device, refer to that device’s
installation instructions for specific
information regarding operation
with power-sharing thermostats. The
T
ypical Wiring Schematics section on
page 5 features the most common
wiring applications. For additional
help, contact Technical Services.
Uponor U.S.: [phone]
Uponor Canada: [phone]
Tools Required
• Small, flat-head screwdriver
• Phillips screwdriver (for
mounting hardware)
• Wire stripper and cutter
Installation
To properly install the thermostat,
refer to the following instructions.
1. Thoroughly read this instruction
sheet to understand the proper
procedures for installation and
operation. Failure to do so could
result in damage to the
thermostat or its connected
equipment, and can also create
asafety hazard.
2. Ensure the function and rating
of the thermostat is suitable for
the application.
3. Only experienced and trained
professionals familiar with low-
voltage wiring should attempt to
install the thermostat.
4. Uponor recommends using
18AWG LVT wiring for all
low-voltage connections
(as regulated by local
building codes).
Placing the Thermostat
Thermostat placement is extremely
important. Install the thermostat
approximately five feet (1.75
meters) above the floor on a
smooth, flat surface. Avoid
mounting the thermostat in the
following locations.
•Near or around windows
• On outside walls
• Near fireplaces
•In the corner of a room
• Behind doors
• On interior walls susceptible
to solar gains
• Near stoves, lamps,
televisions, etc.
• Damp areas
Technical Data
Operating Voltage 24VAC +/- 10%
Maximum Load 1.3 Amps at 24VAC
4xMVA (part number A3020522)
6 x TVA(part number A3010522)
Display Range 38°F to 99°F (2°C to 37°C)
Setting Range 38°F to 99°F (2°C to 37°C)
68°F (20°C) heating default
setting
75°F (24°C) cooling default
setting
Minimum Limit 38°F (2°C) to maximum limit
50°F (10°C) default minimum
setting
Maximum Limit Minimum limit to 99°F (37°C)
86°F (30°C) default maximum
setting
Units User-configurable Fahrenheit or
Celsius
Memory Permanent settings and mode
without power
Freeze Protection Activation at 38°F (3.3°C)
De-activation at 39°F (3.8°C)
Overheat Activation at 100.4°F (38°C)
Protection De-activation at 98.6°F (37°C)
Resolution 1° displayed
0.25° calculated
Temperature Shipping and storage: 14°F to
Ranges 158°F, (-10°C to 70°C)
Operation: 32°F to 104°F,
(0°C to 40°C)
Humidity 20 to90% non-condensing
Size 5" H x 2.72" W x 0.91" D

1. Remove 1⁄4"of wire insulation
from the wire ends. Ensure the
bare wires are clean and free
of corrosion.
2. Route the wires to the terminal
blocks and place the end of
the wires in the correct
wiring locations.
Note: The heat terminals (Rh
and W) are not polarity sensitive.
Mounting the Thermostat
to the Wall Plate
To mount the thermostat to
the wall plate, refer to the
following instructions.
1. Placethe tabs at the bottom
of the front enclosure into
the grooves at the back of
the wall plate.
2. Check the alignment between
the two components.
3. Apply pressure to the top of
the thermostat until it snaps
into place.
Operation
The dynamics of a radiant
heating system differ from a
typical baseboard or forced-air
heating system. This is because
radiant systems heat the mass
and the objects in the room. The
Uponor thermostat uses optimized
control logic to control radiant
systems. Refer to the following
information for the different
modes of operation.
Mounting the Wall Plate
The thermostat case can mount to a
standard electrical wall box or most
wall surfaces using suitable
hardware. To properly mount the
wall plate, refer to the following
instructions.
1. Separate the front and back
plates of the thermostat by
gently applying downward
pressure on the front plate to
separate the front plate from
the back plate.
2. Pull the thermostat wire
through the round opening in
the back plate.
3. Place the back plate against the
wall at the desired location to
cover the opening or electrical
wall box.
4. Align the holes of the back
plate to the holes in the wall or
electrical wall box, and attach
the plate with screws. If
mounting the plate to drywall,
use wall anchors and screws.
5. If the wall cavity behind the
thermostat is susceptible to
drafts (e.g., from a return-air
plenum or an uninsulated wall),
plug and seal any openings to
prevent them from affecting
temperature readings.
Wiring the Thermostat
To properly wire the thermostat,
refer to the following instructions.
Note: All wiring must comply with
local electrical codes and standards.
Caution: Disconnect electrical
power tothe system toprevent
electrical shock and damage.
Heating Mode
When the room temperature falls
0.5°F (0.25°C) below the desired
room setting, the control devices wired
to the thermostat activate. When the
room temperature rises 0.5°F (0.25°C)
above the desired room setting, the
control devices wired to the thermostat
deactivate.
Cooling Mode
When the room temperature rises to
1°F (0.5°C) above the desired room
setting, the control devices wired to
the thermostat activate. When the
room temperature falls 1°F (0.5°C)
below the desired room setting, the
control devices wired to the thermostat
deactivate.
Automatic Mode
The thermostat automatically switches
between heating and cooling modes
based on the heating and cooling
setpoints. (The cooling setpoint must
be greater than or equal to the heating
setpoint.) When the thermostat is in
automatic mode, the cooling mode
icon (snowflake) flashes when the
cooling system is active; the heating
mode icon (floor with tubing) flashes
when the heating system is active.
Pulse Width Modulation
(PWM) Mode
When the room temperature is
between 1 to 3°F (0.5 to1.5°C) below
the desired room setting, the
thermostat manages the application of
heat by varying the on-and-off cycles,
or what is known as pulse width
modulation (PWM). The on-and-off
times varydepending on the difference
between room and desired
temperatures — the further away, the
greater the on time. This prevents the
room temperature from rising above
the desired temperature. The heating
system will run continuously at
temperaturedifferences greater than
3°F (1.5°C).
Push top
down to
separate
2
18AWG,
2Cond. Stranded
2.72"
(69mm)
5.00"
(127mm)
0.75"
(19mm)
2.5"
(63.5mm)

thermostat’s reading will start
at the previous temperature
setting and the previous mode
(Heat, Cool or Off).
Normal Operation
The thermostat displays the current
room temperature measured by the
thermostat along with the mode of
operation. The following icons
indicate the mode of operation.
•None —Thermostat is
turned off.
•Floor with tubing —Heating
mode is active with no call
for heat.
•Floor with tubing and lines
flashing above —Heating
mode is active with a call
for heat.
•Snowflake —Cooling mode is
active with no call for cooling.
•Flashing snowflake —Cooling
mode is active with a call
for cooling.
•Snowflake and radiant panel
—Automatic mode is active.
•Fan —The fan is on.
Adjusting the
Temperature
To adjust the temperature setting,
refer to the following instructions.
Pressing the + (increase or top
button) or – (decrease or bottom
button) changes the desired room
temperature setting.
1. Press either button to enter the
setting program mode.
2. When adjusting the heating
setpoint, the Heating icon will
flash; when adjusting the
cooling setpoint, the Cooling
icon will flash.
Note: In PWM mode, the heating
equipment may temporarily turn off
even when the heating icon is
flashing (indicating a call for heat).
Note: Operating forced-air heat
disables PWM mode. Refer to the
Differential Setting section on
page 4 for further details.
Digital Filtering
The thermostats also feature digital
filtering, meaning the thermostat
continuously measures the room
temperature and employs a digital
filter to create a stable reading and
consistent operation. If each room
temperature reading displayed as it
is sensed, the temperature shown
would appear erratic and
inconsistent. The filtering technique
throws out sensor readings with
large differences from the displayed
temperature and then limits the
amount any individual reading
can affect the overall displayed
reading. This results in a smooth
display and operation.
Note: Due tofiltering, the displayed
room temperature can take up to a
minute to change 1°F (0.5°C).
Important: Uponor thermostats
conform to universal industry
standards. Uponor is not
responsible for damages
resulting from misapplication or
misuse of its products. To avoid
damage tothe thermostat,
install the thermostat with the
power disconnected.
Setting and Adjusting
the Thermostat
All user functions operate via two
buttons (+ and –) located on the
front of the thermostat case.
Power Up and Power
Interruption
After completing all electrical
connections and properly mounting
the thermostat, apply power to
the system. The thermostat
reading automatically starts at
68°F (20°C) in heating mode,
which is the default temperature
setting and mode.
The Uponor thermostat can recall
the previous temperature setting
and mode if power is interrupted.
When power is restored, the
3. Press the + (top button) to
increase the room setting and
the – (bottom button) to
decrease the room setting. Press
and hold the button to rapidly
change the temperature setting.
4. The thermostat accepts the new
setting five seconds after
pressing the last button; then
the thermostat reverts to
displaying the current room
temperature.
Note: When the mode is set to Off,
temperature settings cannot be
changed or adjusted.
Note: If the thermostat is in
Automatic mode, changing the
setting will change the setpoint that
is currently active. When the
thermostat is set for Automatic
mode, and Cooling mode is active,
changing the setting will affect the
cooling setpoint. When the
thermostat is set for Automatic
mode, and Heating mode is active,
changing the setting will affect the
heating setpoint. The mode icon will
flash to indicate which mode is
active when changing the setpoint
in Automatic mode. To change a
setpoint, that mode must be active
(e.g., if the Cooling mode is active
and the user wants to change the
heating setpoint, the user must
activate the Heating mode to
change the heating setpoint).
Changing Modes
(Heating, Cooling
and Off)
This thermostat does not use a
switch to change the mode from
Heat to Off. To change the modes,
refer to the following instructions.
1. Press both (+ and –) buttons
simultaneously to change
the mode.
2. Ensure the program bar is
flashing to indicate the
thermostat is in the
programming mode.
3. Press the + or – button to
change the mode of operation.
Using the + (top) button or the
–(bottom) button changes the
rotation sequence of the icons
or modes.
3

Sensor Reading
Calibration
This setting varies the reading of
the thermostat to overcome
installation-related issues.
1. Press the Special Setting button
and the + (top) button at the
same time.
2. The display shows a single
digit number and the set
operating units.
3. Press the + (top) or – (bottom)
button to increase or decrease
the sensor reading offset.
Positive numbers increase
the sensor reading; negative
numbers decrease the
sensor reading.
4. The thermostat accepts the
change five seconds after
pressing the last button, and
then the thermostat returns to
normal operation.
Important: Adjust the sensor
reading calibration as a last
resortafter first trying all other
remedies.
Differential Setting
This setting allows the user to select
astraight 2°F differential when
operating a furnaceor air handler,
or the standard Uponor heat
algorithm for radiant floor heating
as described in the PWM Mode
section on page 2.
1. Press the Special Setting button
and the – (bottom) button at
the same time.
2. The display indicates either AH
(air handler/furnace) or FL
(floor heating).
3. Press the + (top) or – (bottom)
button tochange the setting
as required.
4. The thermostat accepts
the change five seconds
after pressing the last
button and then returns
to normal operation.
Important:Uponor
recommends using the FL or
floor heating setting with
radiant heating systems.
The following icons indicate the
mode.
•None —Thermostat is off
•Floor icon —Heating mode
with automatic fan
•Floor and fan icons —Heating
mode with fan turned on
•Snowflake icon —Cooling
mode with automatic fan
•Snowflake and fan icons —
Cooling mode with fan turned on
•Snowflake and floor icons —
Automatic mode with
automatic fan
•Snowflake, floor and fan
icons — Automatic mode with
fan turned on
•Fan icon —Fan operates, but
heating and cooling devices will
not activate
Note: The thermostat accepts
changes five seconds after
pressing the last button, and
then the thermostat returns to
normal operation.
Important: The thermostat
remembers the previous
operating mode and settings
after it is powered off.
Advanced Settings
The Uponor thermostat features
extra settings, which are accessed
via the Special Setting button on
the inside of the thermostat case.
When using this button, the
thermostat must be wired and have
power, but needs to be separate
from the wall mounting plate.
Note: Uponor recommends only
qualified installers change these
settings. Improper adjustment of
these settings can result in damage
to the thermostat.
Units
The Uponor thermostat is capable of
operating in either Fahrenheit or
Celsius. To change the units setting,
refer to the following instructions.
1. Press the Special Setting
button once.
2. The display shows the units icon
(°F or °C).
3. Press the + (top) or – (bottom)
button to change the units.
4. The thermostat accepts the
change five seconds after
pressing the last button, and
then the thermostat returns to
normal operation.
Upper Setting Limit
To set the upper limit of the
allowable temperature setting range,
refer to the following instructions.
1. Press the Special Setting
button twice.
2. The number 1 will appear in the
lower left of the display along
with the temperature setting.
3. Press the + (top) or – (bottom)
button to increase or decrease
the upper setting limit of
the thermostat.
4. The thermostat accepts the
change five seconds after
pressing the last button, and
then the thermostat returns to
normal operation.
Lower Setting Limit
To set the lower limit of the
allowable temperature setting range,
refer to the following instructions.
1. Press the Special Setting button
three times.
2. The number 2 will appear in the
lower left of the display along
with the temperature setting.
3. Press the + (top) or – (bottom)
button to increase or decrease
the lower setting limit of
the thermostat.
4. The thermostat accepts the
change five seconds after
pressing the last button, and
then the thermostat returns to
normal operation.
Note: Use the upper and lower limit
for public thermostat operation. By
setting these limits to the same
value, a user cannot change the
thermostat setting.
4

Typical Wiring Schematics
Freeze Protection
The thermostat features automatic
low-temperature protection to
prevent freezing. Regardless of the
temperature setting and mode
(Heating, Cooling or Off), the
thermostat will activate the heating
circuit at 38°F (3.3°C) until the room
temperature reaches 38.8°F (3.8°C).
Users cannot disable this feature.
Overheat Protection
The thermostat features an
automatic high-temperature
protection to prevent overheating.
Regardless of the temperature
setting and mode (Heating, Cooling
or Off), the thermostat will activate
the fan and cooling circuits at 104°F
(38°C) until the room temperature
reaches 98.6°F (37°C). Users cannot
disable this feature.
Figure 1: Typical Wiring for a
Zone Control Module for
Heating Only
Figure 2: Typical Wiring for Heating and Cooling
Figure3: Typical Wiring Using Cooling Only
5

Uponor,Inc.
5925 148th Street West
Apple Valley, MN 55124
Tel:[phone]
Fax:(952)891
-1409
Web: www.uponor-usa.com
E-mail: [email protected]
Uponor Ltd.
655 Park Street
Regina, SK S4N 5N1
Tel: [phone]
Fax: [phone]
Web: www.uponor.ca
E-mail: [e-mail]
UHAC_Thermostat_IS_USACA_11-06, Copyright © 2006 Uponor, Printed in the United States