Uponor SetPoint 521 User manual

SetPoint 521 Programmable
Thermostat with Floor Sensor
Installation and Operation Manual
INSTALLATION AND
OPERATION MANUAL
RADIANT HEATING
SYSTEMS
PROGRAMMABLE
THERMOSTAT

SetPoint 521 Programmable Thermostat Installation and Operation Manual
is published by
Uponor, Inc.
5925 148th Street West
Apple Valley, MN 55124 USA
Tel: [phone]
Fax: [phone]
uponorpro.com
Uponor Ltd.
2000 Argentia Rd., Plaza 1, Ste. 200
Mississauga, ON L5N 1W1 CANADA
Tel: [phone]
Fax: [phone]
uponorpro.com
© 2015 Uponor. All rights reserved.
Second Edition
First Printing January 2015
Printed in Canada
Uponor has used reasonable efforts in collecting, preparing and providing quality information
and material in this manual. However, system enhancements may result in modification of
features or specifications without notice. Uponor is not liable for installation practices that
deviate from this manual or are not acceptable practices within the mechanical trades.
ii uponorpro.com

SetPoint 521 Programmable
Thermostat with Floor Sensor
The SetPoint 521 Programmable
Thermostat with Floor Sensor
(A3040521) is designed for three
different modes of operation:
single-stage heating, two stages
of heating with a fan, or one
stage of heating and one stage
of cooling with a fan. Two
auxiliary sensors may be added
to measure the floor, outdoor or
room temperature.
A Floor Sensor (A3040079) is
included to measure floor tem-
perature to protect the floor from
overheating and enhance comfort.
The programmable schedule
supports either a 7 day or 24 hour
schedule with 2 or 4 events per
day. A permanent temperature
hold button overrides the
programmable schedule.
An optional Adapter Plate
(A3040012) is available to allow
the thermostat to mount onto
a single gang electrical box.
Energy Saving Features
•7-day Programmable Schedule
Additional Features
•Optimum Start
•Permanent Temperature Hold
•Radiant Floor Heating
•Two Stage Heating
•Cooling
•Fan
•Backlight
•Outdoor and Floor
Temperature Display
•Time Clock
•Four Hour Battery-free
Clock Backup
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

Table of Contents
Important Safety Information .................................3
Installation ...............................................4
Mounting the Thermostat ...................................5
New Floor Sensor Installation .................................6
Retrofit Floor Sensor Installations .............................6
Floor Sensor Wiring ........................................8
Floor Sensor Testing .......................................8
Temperature vs. Resistance Table .............................9
Thermostat Wiring ........................................10
Testing the Thermostat Wiring ...............................12
Switch Settings ..........................................13
User Interface ............................................14
Programmable Settings ....................................14
Fan Menu ...............................................15
Set Temperature Menu ....................................16
Time Menu ..............................................17
Schedule Menu ..........................................18
Setup Menu .............................................19
Sequence of Operation ....................................22
Mode Button Operation ....................................22
Heating Operation ........................................22
Two-stage Heating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Freeze Protection .........................................24
Cooling Operation ........................................24
Fan Operation ...........................................24
Time Clock ..............................................24
Programmable Schedule ....................................24
Optimum Start ...........................................25
Temperature Adjustment ...................................26
Access Levels ............................................26
Technical Data ...........................................27
Troubleshooting – Issues ...................................27
Troubleshooting – Error Messages ............................28
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Important Safety Information
•Read manual and all product labels before using the equipment.
Do not use unless you know the safe and proper operation of
this equipment.
•Keep this manual available for easy access by all users.
•Replacement manuals are available at www.uponorpro.com.
•Disconnect all power before opening the thermostat.
•It is the installer's responsibility to safely install this thermostat
according to all applicable codes and standards.
•Improper installation and operation of this thermostat could
result in damage to the equipment and possibly even personal
injury or death.
•This thermostat is not intended for use as a primary limit control.
Only place controls that are intended and certified as safety limits
into the control circuit.
•Do not attempt to service the thermostat. There are no user
serviceable parts inside the thermostat. Attempting to do so
voids the warranty.
Radio Frequency Interference
The installer must ensure this control and its wiring are isolated
and/or shielded from strong sources of electromagnetic noise.
Conversely, this Class B digital apparatus complies with Part 15
of the FCC Rules and meets all requirements of the Canadian
Interference-Causing Equipment Regulations. However, if this
control causes harmful interference to radio or television reception,
(determined by turning the control off and on) try to correct the
interference by re-orientating or relocating the receiving antenna,
relocating the receiver with respect to this control, and/or connecting
the control to a different circuit connected to the receiver.
Warning
It is your responsibility to ensure that this thermostat is safely
installed according to all applicable codes and standards.
Uponor is not responsible for damages resulting from improper
installation and/or maintenance.
To avoid serious personal injury and damage
to the equipment:
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

Installation
Tools and Materials Required
•Jeweller screwdriver
•Phillips head screwdriver
•18 AWG LVT Solid Wire
(low-voltage Connections)
•Wire Stripper
Installation Location
Choose the placement of the
thermostats early in the construction
process to enable proper wiring
during rough-in.
Consider the following:
•Interior wall
•Keep dry; avoid potential leakage
onto the thermostat
•No exposure to extreme temperatures
beyond 32 to 122°F (0 to 50°C)
•No draft, direct sun, or other cause
for inaccurate temperature readings
•Away from equipment,
appliances, or other sources
of electrical interference
•Easy access for wiring, viewing,
and adjusting the display screen
•Approximately 5 feet (1.5 m)
off the finished floor
•Maximum wire length is
500 feet (150 m)
•Strip wire to 3⁄8" (10 mm)
for all terminal connections
•Use standard, 5 conductor,
18-AWG wire
•Relative Humidity less than 90%;
non-condensing environment
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.
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Mounting the Thermostat
Using a Single Gang Box
Note: Adapter Plate (A3040012) is required (sold separately).
1. Feed the wiring through the hole in the Adapter Plate and the thermostat base.
2. Fasten the adaptor plate to the gang box.
3. Fasten the base of the thermostat to the Adaptor Plate.
4. Terminate wiring to the wiring strip.
5. Push the thermostat front onto the thermostat base.
3 1/4"
(83 mm)
Stud
Gang
Box
Thermostat
Front
Thermostat
Base
Adapter Plate
(A3040012)
Mounting Directly to the Wall
1. Drill holes and install the wall anchors.
2. Feed the wiring through the large hole in the thermostat base.
3. Fasten the thermostat base to the wall using the wood screws to the wall anchors.
4. Terminate wiring to the wiring strip.
5. Push the thermostat front onto the thermostat base.
Wall
Thermostat
Front
Thermostat
Base
5
SetPoint 521 Programmable Thermostat Installation and Operation Manual

Thin-Set or
Thin-Pour Applications
If installing floor covering over either
a thin-set or thin-pour material of
sufficient depth, place the sensor
directly into either the thin-set material
or the thin-pour material. Ensure the
sensor is located in such a position
that the attached wire is able to
reach a suitable junction location.
Avoid splices 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" (10 mm)]
If installing a thin floor covering
directly to the subfloor, cut a groove
1⁄8" (4 mm) wide by 1⁄16" (2 mm) deep
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 a suitable junction
location. Avoid splices under the
floor covering to ensure trouble-free
operation. Cut a groove 3⁄16" (5 mm)
wide by 3⁄16" (5 mm) deep by 13⁄4"
(45 mm) long to accommodate the
sensor. Locate the sensor midway
between the heating elements to
ensure a proper temperature reading.
Thick Floor Coverings
(greater than 3⁄8" (10 mm))
If installing a thick floor covering
directly to the subfloor, cut a groove
1⁄8" (4 mm) wide by 1⁄16" (2 mm) deep
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 a suitable junction location.
Avoid splices under the floor covering
to ensure trouble-free operation.
Cut a groove 3⁄16" (5 mm) wide by
3⁄16" (5 mm) deep by 13⁄4" (45 mm)
long to accommodate the sensor.
Locate the sensor midway between
the heating elements to ensure a
proper temperature reading.
If it is not practical to cut a groove
in the surface covering, follow
the installation method for thin
floor coverings.
Retrofit Floor Sensor
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 placed 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. 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 operation.
New Floor Sensor Installation
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Tiles
Thin-set
Hydronic Pipe
Hardwood
Subfloor
Hardwood
Subfloor
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" (25 mm) thick rigid insulation into a
6" (150 mm) by 6" (150 mm) square.
Cut a groove 3⁄16" (5 mm) wide by 3⁄16"
(5 mm) deep by 13⁄4" (45 mm) 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.
Note: 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.
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

Floor Sensor Wiring
The Floor Sensor (A3040079) comes
with 10' (3 m) of cable. If a longer
length is required, splice 24 AWG or
larger wire onto the two wires from the
sensor. Properly solder and protect the
splices in an accessible junction box.
Follow the sensor testing instructions
in this manual and then connect the
wires to the thermostat.
Floor Sensor Testing
Use a good quality test meter capable
of measuring up to 5,000 kΩ (1 kΩ =
1000Ω) to measure the sensor resis-
tance. 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 S1 or S2 and Com wires from the
thermostat. Using an electrical meter,
measure the resistance of the S1 or
S2 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 S1
or S2 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.
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Temperature vs. Resistance Table
Temperature Resistance
°F °C Ω
-50 -46 490,813
-45 -43 405,710
-40 -40 336,606
-35 -37 280,279
-30 -34 234,196
-25 -32 196,358
-20 -29 165,180
-15 -26 139,402
-10 -23 118,018
-5 -21 100,221
0-18 85,362
5-15 72,918
10 -12 62,465
15 -9 53,658
20 -7 46,218
25 -4 39,913
30 -1 34,558
35 229,996
40 426,099
45 722,763
50 10 19,900
55 13 17,436
60 16 15,311
65 18 13,474
70 21 11,883
75 24 10,501
80 27 9,299
85 29 8,250
Temperature Resistance
°F °C Ω
90 32 7,334
95 35 6,532
100 38 5,828
105 41 5,210
110 43 4,665
115 46 4,184
120 49 3,760
125 52 3,383
130 54 3,050
135 57 2,754
140 60 2,490
145 63 2,255
150 66 2,045
155 68 1,857
160 71 1,689
165 74 1,538
170 77 1,403
175 79 1,281
180 82 1,172
185 85 1,073
190 88 983
195 91 903
200 93 829
205 96 763
210 99 703
215 102 648
220 104 598
225 107 553
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

Zone Control Module
(A3031003/A3031004)
24
3
CRRh W1 S1 Com
No Power
Zone Control Module
A3031003/A3031004
Field Jumper Required:
R to Rh
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
RW
24 V
RW
HNXX HNHN NH
Com Switching Relay
Zone 1 Zone 2 Zone 3
Class 2
Transformer
RW
Zone 1 Zone 2 Zone 3
Pump N L
Switching Relay
Thermostat Wiring
T T
C
N
L
R
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
2
1
8
7
3
4
5
6
Boiler
Relay
Pump
Field Jumper Required:
R to Rh
Transformer
Relay
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
Floor Sensor
(A3040079)
Floor Sensor
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Zone Valve
C
N
L
R
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
TT
Zone
Valve
Boiler
Transformer
Field Jumper Required:
R to Rh
Furnace
Furnace (second stage heat)
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
R W G
Field Jumper Required:
Rc to G
Air Conditioner
RYG
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
Air Conditioner
Field Jumper Required:
Rc to G
CR Y/W2 Rc GGRh W1 S1 S2Com
No Power
C
R
W
Y
G
Furnace
Air
Conditioner
Field Jumper Required:
R to Rh
Rh to Rc
Rc to G
Furnace and Air Conditioner
11
SetPoint 521 Programmable Thermostat Installation and Operation Manual

Testing the
Thermostat Wiring
Testing the Power
If the thermostat display turns on,
this indicates that power is applied
correctly. In the event that the display
is permanently off, refer to the
following instructions:
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 initially powers
on but later shuts off intermittently,
there may be a short circuit from the
W1, W2, Y or G wire to the power
common or ground, or the power
supply is too small to power the load.
Testing the First Stage
Heat Output Wiring
Press the Mode button and set
to Heat.
4. Press 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.
5. When the “Heat On” symbol appears
on the display, use an electrical meter
to check for voltage on the W1 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).
6. If the W1 and C wires have voltage,
check the zone valve, wiring center,
relay or pump to determine if the
heat device is operating correctly.
Testing the Cooling
Output Wiring
Cooling is only available when the
switch setting is set to H/C/F.
1. Press the Mode button and set
to Cool.
2. Press the button and set the
cooling temperature below the
current room temperature setting.
3. When the “Cool On” symbol appears
on the display, use an electrical
meter to check for voltage on
the Y and C wires on the cooling
equipment. The meter should
read 10 to 30 V (ac) or (dc).
Testing the Fan Output Wiring
The fan is only available when the
Fan Mode setting is not set to off.
4. Press both the and
buttons together.
5. The display will show FAN MENU.
Press the PRGM button.
6. Press the up button to set the
cfan to On.
7. When the fan symbol appears on
the display, use an electrical meter
to check for voltage on the G and C
wires on the fan equipment.
The meter should read 10 to
30 V (ac) or (dc).
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Switch Position Action
1
ON
Lock Access Level
Thermostat is locked and the access level cannot be changed.
Set to Lock when installation has been completed.
OFF
Unlock Access Level
Thermostat is unlocked and the access level may be changed.
Go to the Setup menu to change the access level. Set to Unlock
during the installation process.
2
ON
H/C/F
Thermostat is configured to operate one-stage heating, one-
stage cooling and fan.
OFF
1H or 2H
Thermostat is configured to operate one- or two-stage heating
with a fan.
Switch Settings
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

User Interface
Home Screen
Mode Button
Changes operation between Heat,
Cool and Off
Hold Button
Permanently overrides the schedule;
press hold to cancel.
Programmable Settings
Navigation
1. Press and hold down both the
and buttons together to enter
the Programming Menus.
2. While in the Programming Menus,
the MODE button changes function
to become the MENU button.
Press the MENU button to change
from one menu to the next.
3. While in the Programming Menus,
the HOLD button changes function
to become the PRGM (program)
button. Press the PRGM button to
enter the menu.
4. While inside a menu, the HOLD
button changes to become the ITEM
button. Press the ITEM button to
change from one setting to the next.
5. Press the or button to change
and save the setting's value.
PRGM
MENU
PRGM
MENU
Sa
Floor
F
F
MIN
Heat On Cool On
Room Floor
Heat Cool
Off
MAX
MODE
FrThWeTuMoSu
P
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PRGM
MENU
PRGM
MENU
PRGM
MENU
PRGM
MENU
PRGM
MENU
Fan Menu
Setting Display
Fan
Select if the fan should operate continuously (On) or only
together with the heating or cooling equipment (Auto).
Access Level: Installer, User Range: Auto or On
Conditions: Only available when FAN MODE is not set to OFF
and a room temperature sensor is available. Default: Auto
Symbols Description
Heat On
Heat is turned on.
Cool On
Cooling is turned on.
Fan
The fan is turned on.
Mode Heat
The heating system is
allowed to operate.
Mode Cool
The cooling system is
allowed to operate.
Mode Off
The heating and cooling
systems are off.
Sun
Schedule operating at
the occupied tempera-
ture.
Symbols Description
Moon
Schedule operating at
the unoccupied tem-
perature.
Warning Symbol
Indicates an error
is present.
Hold
Permanently holds the
temperature and overrides
the schedule.
Min
The floor is at or
below the floor minimum
temperature.
Max
The floor has reached
the floor maximum
temperature.
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SetPoint 521 Programmable Thermostat Installation and Operation Manual

Setting Display
Set Heat Room
Set the room heating
temperature for the
event.
Access Level:
Installer, User
Range: 40 to 95°F
(4.5 to 35.0°C)
Conditions: Room
Sensor On or Sensor
1 or 2 is set to Room.
Default: 70°F (21.0°C)
Set Heat
Room
Set the room heating
temperature
for the event.
Access Level:
Installer, User
Range: 40 to 95°F
(4.5 to 35.0°C)
Conditions: Room
Sensor On or Sensor
1 or 2 is set to Room
and Schedule is set
to On.
Default: 65°F (18.5°C)
Set Cool Room
Set the room cooling
temperature for the
event.
Access Level:
Installer, User
Range: 50 to 100°F
(10.0 to 38.0°C)
Conditions: Room
Sensor On or Sensor
1 or 2 is set to Room.
Default: 78°F (25.5°C)
Set Cool Room
Set the room cooling
temperature for the
event.
Access Level:
Installer, User
Range: 50 to 100°F
(10.0 to 38.0°C)
Conditions: Room
Sensor On or Sensor
1 or 2 is set to Room
and Schedule is set
to On.
Default: 85°F (29.5°C)
Setting Display
Set Floor
Set the floor heating
temperature for the
event.
Access Level:
Installer, User
Range: OFF, 40 to
122°F (OFF, 4.5 to
50.0°C)
Conditions:
Sensor 1 or 2 is set
to Floor.
Default: 72°F (22.0°C)
Set Floor
Set the floor heating
temperature for the
event.
Access Level:
Installer, User
Range: OFF, 40 to
122°F (OFF, 4.5 to
50.0°C)
Conditions: Sensor
1 or 2 is set to Floor
and Schedule is set
to On.
Defaults: Air & floor
sensors: 65°F (18.5°C)
Floor sensor only: OFF
Set Floor
Maximum
Set the maximum
floor heating tem-
perature.
MAX
Access Level: Installer Range: 40 to 122°F,
OFF (4.5 to 50.0°C,
OFF)
Conditions:
Sensor 1 or 2 is set to
Floor.
Default: 85°F (29.5°C)
Set Temperature Menu
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Setting Display
Minutes
Set the current time minutes.
Access Level: Installer, User Range: 00 to 59
Conditions: Always available. Default: 00
Hours
Set the current time hours.
Access Level: Installer, User Range: 12 AM to 11 PM or 00
to 23
Conditions: Always available. Default: 12 AM
Day of Week
Select the current day
of the week.
Access Level: Installer, User Range: Sunday to Saturday
Conditions: Always available. Default: Sunday
Time Mode
Select either 12 or 24 hour
time format.
Access Level: Installer, User Range: 12 or 24 hour
Conditions: Always available. Default: 12 hour
Clock
Select whether to show the time
clock on the display.
Access Level: Installer, User Range: OFF or ON
Conditions: The time is always
shown when a schedule is used
and the clock setting option
is hidden.
Default: OFF
Time Menu
17
SetPoint 521 Programmable Thermostat Installation and Operation Manual

Schedule Menu
The schedule menu can operate on a 24 hour or 7 day repeating schedule. When
a 24 hour schedule is selected, “SuMoTuWeThFrSa” is shown on the top of the
screen to show that the event time applies to all days of the week. When a 7 day
schedule is selected, each individual day of the week is shown with the event time.
Setting Display
Event 1
The first programmable schedule time period
of the day. The temperature settings are
used during this time period.
SaFrThWeTuMoSu
Access Level: Installer, User Range: 12:00 AM to 11:50 PM, SKIP or 00:00 to
23:50, SKIP
Conditions: Schedule setting is set to On. Default: 6:00 AM
Event 2
The second programmable schedule time
period of the day. The temperature settings
are used during this time period.
SaFrThWeTuMoSu
Access Level: Installer, User Range:
12:00 AM to 11:50 PM,
SKIP or 00:00 to 23:50, SKIP
Conditions: Schedule setting is set to On. Default:
10:00 PM when Event/Day is 2
8:00 AM when Event/Day is 4
Event 3
The third programmable schedule time period
of the day. The temperature settings are
used during this time period.
SaFrThWeTuMoSu
Access Level: Installer, User Range: 12:00 AM to 11:50 PM, SKIP or 00:00 to
23:50, SKIP
Conditions: Schedule setting is set to On. Default: 6:00 PM
Event 4
The fourth programmable schedule time period
of the day. The temperature settings are
used during this time period.
SaFrThWeTuMoSu
Access Level: Installer, User Range:
12:00 AM to 11:50 PM, SKIP
or 00:00 to 23:50, SKIP
Conditions: Schedule setting is set to On. Default: 10:00 PM
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