Single-stage SetPoint Controller
with Floor Sensor (A3041501)
Installation & Operation Manual
Introduction
The Uponor Single-stage SetPoint
Controller with Floor Sensor
(A3041501) accurately controls the
room and/or floor temperature for a
hydronic heating zone using Pulse
Width Modulation (PWM) technology.
Simple up and down buttons and
a display with large type make
this thermostat easy to read and
use. An optional Uponor Floor
Sensor (A3040079) is included to
measure floor temperature to protect
the floor from overheating and
enhance comfort.
Energy-saving Features
• Auto Heating Cycle
Additional Features
• Radiant Floor Heating
• Pulse Width Modulation (PWM)
• Floor and Air Temperature
Control
• Outdoor and Floor Temperature
Display
• Backlight
• Freeze Protection
• Includes Floor Sensor
(A3040079)
Table of Contents
Getting Started.....................................2
Installation............................................2
Preparation......................................2
Removing the Thermostat Base......3
Mounting the Thermostat.................4
Floor Sensor Installation..................5
Floor Sensor Wiring.........................6
Floor Sensor Testing........................7
Temperature vs. Resistance Table.....7
Thermostat Wiring...........................9
Testing the Thermostat Wiring.......10
Sequence of Operation.......................12
Heating Operation..........................12
Programmable Settings......................13
Troubleshooting..................................14
Error Messages.............................14
Frequently Asked Questions..........15
Technical Data...............................15
User Interface..................................... 11
Home Screen................................. 11
Symbols Description...................... 11
Getting Started
Congratulations on the purchase of your new Uponor thermostat.
This manual will step through the complete installation, programming and
sequence of operation for this control. At the back, there are tips for control and
system troubleshooting.
Installation
Caution
Improper installation and operation of this control could result in damage to the
equipment and possibly even personal injury or death. It is your responsibility to
ensure that this control is safely installed according to all applicable codes and
standards. This electronic control is not intended for use as a primary limit control.
Other controls that are intended and certified as safety limits must be placed into
the control circuit.
Preparation
Tools Required------------------------------------------------------• Jeweller screwdriver
• Wire stripper
• Phillips head screwdriver
2
www.uponorpro.com
Materials Required--------------------------------------------------• 18 AWG LVT Solid Wire
(Low-voltage Connections)
Installation Location-------------------------------------------------Choose the placement of the thermostats early in the construction process to enable
proper wiring during rough-in.
Consider the following:
• Install on an interior wall.
• Keep dry. Avoid potential leakage onto the control.
• Ensure relative humidity is less than 90% (non-condensing environment).
• Do not expose to extreme temperatures beyond 32-122°F (0-50°C).
• Do not expose to draft, direct sun, or other cause for inaccurate
temperature readings.
• Install away from equipment, appliances, or other sources of electrical
interference.
• Ensure easy access for wiring, viewing, and adjusting the display screen.
• Install approximately 5 feet (1.5m) off the finished floor.
• The maximum length of wire is 500 feet (150m).
• Strip wire to 3⁄8" (10mm) for all terminal connections.
• Use standard, 4-conductor, 18-AWG wire.
Removing the Thermostat Base
To remove the thermostat base:
• Locate the tab on the bottom of the
thermostat.
• Push the tab with either your thumb or with
a screwdriver.
• Lift the thermostat front away from the
thermostat’s base.
Single-stage SetPoint Controller Installation & Operation Manual
3
Mounting the Thermostat
Thermostat
Front
Thermostat
Base
Wall
If mounting directly to the wall:
• Drill holes and install the wall anchors.
• Feed the wiring through the large hole in the thermostat base.
• Fasten the thermostat base to the wall using the wood screws to the wall
anchors.
• Terminate wiring to the wiring strip.
• Push the thermostat front onto the thermostat base.
Adapter Plate
Thermostat
Front
Thermostat
Base
Stud
31/4"
(83mm)
Gang
Box
If a single gang box is used:
• Adapter Plate is required (sold separately).
• Feed the wiring through the hole in the adaptor plate and the thermostat base.
• Fasten the adaptor plate to the gang box.
• Fasten the base of the thermostat to the adaptor plate.
• Terminate wiring to the wiring strip.
• Push the thermostat front onto the thermostat base.
4
www.uponorpro.com
Floor Sensor Installation
New Installations----------------------------------------------------Thin-set or Thin-pour Applications
If installing the floor covering over either a thin-set or thin-pour material of sufficient
depth, the floor sensor can be placed directly into either the thin-set material or the
thin-pour material and covered over. Ensure
Tiles
the sensor is located in such a position
Thin Set
that the attached wire is able to reach to
Electric
a suitable junction location. Avoid splices
Cables
within the thin set or thin pour to ensure
trouble-free operation. Locate the sensor
midway between the heating elements to
ensure a proper temperature reading.
Thin Floor Coverings [less than 3⁄8" (10mm)]
If installling a thin floor covering directly to the subfloor, a groove 1⁄8" (4mm) wide
by 1⁄16" (2mm) deep can be cut into the surface of the subfloor to accommodate
the wire for the sensor. Ensure the sensor is located in such a position that the
attached wire is able to reach to a suitable junction location. Avoid splices under
the floor covering to ensure trouble-free
Hardwood
operation. Cut a groove 3⁄16" (5mm) wide
3
3
by ⁄16" (5mm) deep by 1 ⁄4" (45mm) long to
Subfloor
accommodate the sensor. Locate the sensor
midway between the heating elements to
ensure a proper temperature reading.
Thick Floor Coverings [greater than 3⁄8" (10mm)]
If installing a thick floor covering directly to the subfloor, a groove 1⁄8" (4mm)
wide by 1⁄16" (2mm) deep can be cut into the back of the flooring material to
accommodate the wire for the sensor. Ensure the sensor is located in such a
position that the attached wire is able to reach to a suitable junction location.
Avoid splices under the floor covering to ensure
Hardwood
trouble-free operation. Cut a groove 3⁄16" (5mm)
wide by 3⁄16" (5mm) deep by 13⁄4" (45mm) long
Subfloor
to accommodate the sensor. Locate the sensor
midway between the heating elements to
ensure a proper temperature reading.
Note: If it is not practical to cut a groove in the
surface covering, follow the installation method
used for thin floor coverings.
Single-stage SetPoint Controller Installation & Operation Manual
5
Retrofit Installations-------------------------------------------------Tile Floor Coverings
If installing a Floor Sensor (A3040079) into an existing tile floor with sufficiently
large grout lines, the sensor and wire can be installed in one of the grout lines
between the tiles. Select a low-traffic area of the floor that is midway between
the heating elements for the sensor location.
Tiles
Ensure the sensor is located in such a
Thin-set
position that the attached wire is able to
Subfloor
reach to a suitable junction location.
Avoid splices within the grout to ensure
trouble-free operation. Remove the
appropriate grout line and place the sensor
and wire in the floor. Re-grout the area.
Installing the Sensor to the Bottom of a Subfloor
If installing the sensor to the bottom of a subfloor,
cut a piece of 1" (25mm) thick, rigid insulation
Subfloor
into a 6" (150mm) by 6" (150mm) square.
3
3
Cut a groove ⁄16" (5mm) wide by ⁄16" (5mm)
deep by 13⁄4" (45mm) long into the insulation
to accommodate the sensor. Place the sensor
in the groove and sandwich the sensor
between the insulation and the subfloor.
Use a suitable fastening method to affix the
insulation to the subfloor.
Floor Sensor Wiring
Caution: Do not run sensor wires parallel to telephone or power cables. If the
sensor wires are located in an area with strong sources of electromagnetic
interference, use shielded cable or twisted pair or run the wires in a grounded
metal conduit.
The Floor Sensor is supplied with 10' (3m) of cable. If a longer length is required,
24 AWG or larger wire can be spliced onto the two wires from the sensor. The
splices should be properly soldered and protected in an accessible junction box.
Follow the sensor testing instructions given in this manual and then connect the
wires to the control.
6
www.uponorpro.com
Floor Sensor Testing
A good-quality test meter capable of measuring up to 5,000 kΩ (1 kΩ = 1000Ω)
is required to measure the sensor resistance. In addition, measure the actual
temperature with either a good-quality digital thermometer, or if a thermometer
is not available, place a second sensor alongside the one to be tested and
compare the readings.
First, measure the room temperature using the thermometer. Disconnect the
Sen and Com wires from the thermostat. Using an electrical meter, measure
the resistance of the Sen and Com wires at the thermostat location. Using the
Temperature vs. Resistance Table below, estimate the temperature measured by
the sensor. The sensor measurement and thermometer readings should be close.
If the test meter reads a very high resistance, there may be a broken wire, a poor
wiring connection or a defective sensor. If the resistance is very low, the wiring
may be shorted, there may be moisture in the sensor or the sensor may be
defective. To test for a defective sensor, measure the resistance directly at the
sensor location. Once the test has been completed, reconnect the Sen and Com
wires to the thermostat.
Do not apply voltage to the temperature sensor terminals at any time as damage to
the sensor may result.
Temperature vs. Resistance Table
Temperature
°F
°C
-50
-46
-45
Resistance
Temperature
Resistance
°F
°C
490,813
25
-4
39,913
-43
405,710
30
-1
34,558
-40
-40
336,606
35
2
29,996
-35
-37
280,279
40
4
26,099
-30
-34
234,196
45
7
22,763
-25
-32
196,358
50
10
19,900
-20
-29
165,180
55
13
17,436
-15
-26
139,402
60
16
15,311
-10
-23
118,018
65
18
13,474
-5
-21
100,221
70
21
11,883
0
-18
85,362
75
24
10,501
5
-15
72,918
80
27
9,299
10
-12
62,465
85
29
8,250
15
-9
53,658
90
32
7,334
20
-7
46,218
95
35
6,532
Single-stage SetPoint Controller Installation & Operation Manual
7
Temperature vs. Resistance Table - Continued
Temperature
8
°F
°C
100
38
105
Resistance
Temperature
Resistance
°F
°C
5,828
165
74
1,538
41
5,210
170
77
1,403
110
43
4,665
175
79
1,281
115
46
4,184
180
82
1,172
120
49
3,760
185
85
1,073
125
52
3,383
190
88
983
130
54
3,050
195
91
903
135
57
2,754
200
93
829
140
60
2,490
205
96
763
145
63
2,255
210
99
703
150
66
2,045
215
102
648
155
68
1,857
220
104
598
160
71
1,689
225
107
553
www.uponorpro.com
Thermostat Wiring
Zone Valve----------------------------------------------------------Install field
jumper wire
R to Rh
Zone
Valve
Floor Sensor (A3040079)
No Power
No
Power
RC
518
C
R Rh W1 S1 Com
24 V (ac)
Transformer
LN
Zone Control Module A3031003/A3031004-----------------------------Install field
jumper wire
R to Rh
Floor Sensor (A3040079)
No Power
Power
518
3
2
C
R Rh W1 S1 Com
4
Zone Control Module
A3031003/A3031004
Relay---------------------------------------------------------------Relay
2
1
8
7
3
4
5
6
R
Install field
jumper wire
R to Rh
C
Floor Sensor (A3040079)
No Power
Power
518
C
R Rh W1 S1 Com
NLG
Transformer
115 V (ac)
Single-stage SetPoint Controller Installation & Operation Manual
9
Thermostat Wiring
Multiple Pump Relay (A3080301)---------------------------------------
Floor Sensor
(A3040079)
518
R W R W
Zone 1 Zone 2
C
No Power
R Rh W1 S1 Com
R W
Zone 3
24 V
Switching Relay
Com
Class 2
Transformer
X
X
Zone 1 Zone 2 Zone 3
H N H N H N
Pump
N
H
NL
Testing the Thermostat Wiring
Testing the Power---------------------------------------------------If the thermostat display turns on, this indicates that the thermostat is operating
correctly and there are no electrical issues. In the event that the display is
permanently off:
1. Remove the thermostat front.
2. Use an electrical meter to measure voltage between the R and C wiring terminals.
For AC power supplies, the voltage should measure between 10 to 30 V (ac).
For DC power supplies, the voltage should measure between 10 to 30 V (dc).
3. If the voltage on the R and C wire terminations is continuous and the thermostat
display is not on, the thermostat may have a fault. Contact your Uponor sales
representative for assistance.
If the thermostat display intially powers on but later shuts off intermittently, there
may be a short circuit from the W wire to ground, or the power supply is too small
to power the load.
Testing the Heat Zone Output Wiring---------------------------------1. Touch the
button and set the heating temperature above the current room
temperature. Make sure the display does not flash “Max” if using a floor sensor.
2. When the “Heat On” symbol appears on the display, use an electrical meter
to check for voltage on the W and C wires connected to the zone valve,
wiring center, relay or switching relay. The electrical meter should read
10 to 30 V (ac) or (dc).
3. If the W and C wires have voltage, check the zone valve, wiring center, relay or
pump to determine if the heat device is operating correctly.
10
www.uponorpro.com
User Interface
Home Screen
Symbols Description
HEAT ON
Heat is turned on.
MIN
The floor is at or below the
floor minimum temperature.
MODE OFF
The heating system is off.
WARNING SYMBOL
Indicates an error is present.
MAX
The floor has reached the
floor maximum temperature.
Single-stage SetPoint Controller Installation & Operation Manual
11
Sequence of Operation
Heating Operation
To change the heat temperature setting, push the
or
button to select a
preferred temperature setting. The Heat On symbol is shown on the display when
the thermostat is heating. The heat can cycle on and off within +/- 1.5°F (1°C) of
the temperature setting.
The floor and air heating can be shut off by holding the
button until Set Room is Off.
To resume heating when the Mode is Off, press the
button to navigate to the
Mode setting, then press the
button to select Mode Heat. The thermostat will
resume heating at the last previously set temperature.
Air Temperature Only---------------------------------If there is only an air temperature sensor (no floor sensor), the thermostat operates
to control your desired air temperature.
Floor Temperature Only--------------------------------If the air sensor has been disabled, the thermostat will only maintain floor
temperature and ignore air temperature. This operation is recommended for areas
such as bathrooms to ensure that tile floors are warm to the touch.
Floor and Air Temperature ------------------------------If the air sensor is turned on and a floor sensor is connected, the thermostat will
maintain the desired air temperature as well as a minimum floor temperature.
This operation is recommended for areas with large windows that allow the sun to
shine into a room and keep it warm without the need for heat. This can allow the
floors to cool off during the afternoon. When the sun goes down, it can take a long
time for the floors to get warm again. This may cause the room to cool off too much in
the early evening. A floor minimum setting can help with this condition by maintaining
a floor minimum temperature. Keep in mind the floor minimum temperature will
override the air temperature, and if set too high, may overheat the room.
This operation is also recommended for rooms with hardwood floors. Setting floor
minimum and maximum temperatures is a way of enhancing the comfort of the
living space while protecting floor coverings.
12
90°F (32°C)
Feels hot to the touch
Suggested maximum for all floor
types other than wood.
80 to 85°F (26 to 30°C)
Feels warm to the touch
Bathrooms and kitchens. Suggested
maximum for wood floors.
70°F (21°C)
Feels cool to the touch
Rooms with large windows preventing
under heating in the evening.
40 to 45°F (5 to 7°C)
Feels cold to the touch
Freeze protection for garages.
www.uponorpro.com
Programmable Settings
Setting
Display
User settings. Press the
and
advance to the next setting.
buttons together for 3 seconds to enter and
MODE
Select heat or off.
Range: HEAT, OFF
Default: HEAT
UNITS
Select the temperature units.
Range: °F or °C
LIGHT
Select when the display backlight should operate. Auto
operates the backlight for 30 seconds after a keystroke.
Range: OFF, AUTO, ON
SET FLOOR
Set the floor minimum temperature. Available when an
auxiliary floor sensor is connected and the built-in room
sensor is on.
Range: OFF, 40 to 122°F (4.5 to 50.0°C)
TYPE
Device Type number. Hold the
button to view the
software version.
ESCAPE
Release the
and
Default: °F
Default: AUTO
F
Default: 72°F (22.0°C)
buttons to return to the home screen.
Installer settings. Press the
and
buttons together for 5 more seconds.
AUXILIARY SENSOR
Select the type of auxiliary sensor. Available when an auxiliary
sensor is automatically detected.
Range: NONE = no auxiliary sensor, ROOM = Indoor
Default: OFF
Sensor, FLOR = Floor Sensor, OUT = Outdoor Sensor
ROOM SENSOR
Select if the built-in room temperature sensor is on or off.
The built-in room sensor can only be disabled when an
auxiliary room or floor sensor is connected.
Range: ON or OFF
Default: ON
SET FLOOR MAXIMUM
Set the floor maximum temperature in order to protect the
floor covering. Suggested settings: Tile = 90°F (32°C),
Wood Floor = 85°F (29°C)
Range: 40 to 122°F (4.5 to 50.0°C), OFF
Default: 85°F (29.5°C)
Room
F
MAX
ESCAPE
Release the
and
buttons to return to the home screen.
Single-stage SetPoint Controller Installation & Operation Manual
13
Troubleshooting
Error Messages
Error Message
Description
SETUP MENU SAVE ERROR
The thermostat failed to read the Programmable Settings from
memory and has reloaded the factory default settings. The
thermostat stops normal operation until all Programmable Settings
are checked except to provide freeze protection.
Room
Room
ROOM SENSOR OPEN CIRCUIT ERROR
The built-in air temperature sensor has an open circuit fault.
Do not confuse this error with the auxiliary room sensor short
circuit error.
This error cannot be field repaired. Contact your wholesaler or Uponor
sales representative for details on repair procedures.
ROOM SENSOR SHORT CIRCUIT ERROR
The built-in air temperature sensor has a short circuit fault. Do not
confuse this error with the auxiliary room sensor short circuit error.
This error cannot be field repaired. Contact your wholesaler or
Uponor sales representative for details on repair procedures.
AUXILIARY SENSOR OPEN CIRCUIT ERROR
The auxiliary sensor has an open circuit. Check for loose or
damaged wires. Locate and repair the problem as described in
the Sensor Testing section of this installation manual. The error
clears after the auxiliary sensor fault is corrected. If the auxiliary
sensor was intentionally removed, power the thermostat down
and up to clear the error.
AUXILIARY SENSOR SHORT CIRCUIT ERROR
The auxiliary sensor has a short circuit. Check for damaged
wires. Locate and repair the problem as described in the Sensor
Testing section of this manual. The error clears after the auxiliary
sensor fault is corrected.
14
www.uponorpro.com
Frequently Asked Questions
Symptom
Look for...
Corrective Action
Display powering
on and off.
Measure voltage at
wiring terminals R
and C.
The power supply transformer
may have limited VA capacity. A
transformer with a larger VA rating is
recommended.
Thermostat does
not heat.
Mode Off
Thermostat must be in Mode Heat in
order to provide heating.
Technical Data
Thermostat (A3041501)
Control
Microprocessor control; this is not a safety (limit) control.
Packaged weight
0.6 lb. (290 g)
Dimensions
311⁄16" H x 3" W x 15⁄16" D (94mm x 76mm x 24mm)
Enclosure
White PVC plastic, NEMA Type 1
Approvals
Meets Class B: ICES and FCC Part 15
Ambient conditions
Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing
Power supply
10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby,
56 VA max fully loaded, Class 2
Relay
30 V (ac/dc) 2 A, Class 2 circuits
Sensor
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
– Included
Floor Sensor (A3040079)
Floor Sensor (A3040079)
Dimensions
3
⁄16" OD x 11⁄2" (5mm OD x 38mm)
Enclosure
316 stainless steel, 10' (3 m) 24 AWG, 300 volt PVC-insulated zipcord
Approvals
Operating range
-58 to 140°F (-50 to 60°C)
Sensor
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Single-stage SetPoint Controller Installation & Operation Manual
15
SetPointController_InsOperMan_H489_0614, Copyright © 2014 Uponor. Printed in the Canada
Uponor, Inc.
5925 148th Street West
Apple Valley, MN 55124 USA
Tel: 800.321.4739
Fax: 952.891.2008
Uponor Ltd.
2000 Argentia Rd., Plaza 1, Ste. 200
Mississauga, ON L5N 1W1 CANADA
Tel: 888.994.7726
Fax: 800.638.9517
www.uponorpro.com