GFCI 29050 Owner's Manual - User Manual

Download PDF User Manual

Full Text Searchable PDF User Manual

Owner’s Manual

Infloor Sales & Service

Programmable Thermostat

29050 Version 2

The Infloor Sales & Service 29050 is designed to operate either a 120 VAC or

240 VAC resistance floor heating system. It comes with an easy setup wizard, a

typical program ready to go, and a GFCI inside to meet safety needs.
Please follow this manual for installation and operating instructions. Leave these

instructions with the homeowner.

Installation

Cautions to Follow

You are required to thoroughly read all installation instructions and product

safety information before beginning the installation of this product. FAILURE

TO COMPLY WITH PROPER INSTALLATION AND MAINTENANCE INSTRUCTIONS

COULD RESULT IN DAMAGE TO THE SYSTEM OR ELECTRIC SHOCK CAUSING

PROPERTY DAMAGE, PERSONAL INJURY AND/OR DEATH. Infloor is not

responsible for damages resulting from improper installation and/or

maintenance.
Local building or plumbing codes may require modifications to the information

provided. You are required to consult the local building and plumbing codes

prior to installation. If this information is not consistent with local building or

plumbing codes, the local codes should be followed.

CAUTION: This product requires electrical wiring. It is recommended that

this product is installed by a qualified technician. Local codes may require

this product be installed by an electrician. Prior to installation, consult

your local codes for what is acceptable in your area. To the extent this

information is not consistent with local codes, the local codes should be

followed.

ALWAYS: Wire all circuits as Class 1, Electric Light and Power Circuits

ALWAYS: Wire all circuits with insulation rated 600V minimum.

ALWAYS: Mount this control only to a grounded metallic box or a nonmetallic

box.

ALWAYS: Use power supply wires suitable for at least 90°C.

WARNING: High voltage – disconnect power supply before servicing.
WARNING: The GFCI (ground-fault circuit interrupter) in this thermostat

control does not protect against shock if both bare conductors are touched

at the same time.

WARNING: Do not exceed 15 amps on this thermostat control. Doing so will

cause risk of fire hazard and damage.

CAUTION: Make sure the house power supply voltage matches the voltage

rating of the floor heating system. Do not apply 240 VAC to a 120 VAC rated

system. Connecting the wrong voltage may cause overheating and damage

to the system, the control, floor coverings, etc.

Parts Needed

Contents of package:

Unpack the thermostat control and make sure everything is in good condition.

Do not use a damaged control or part. The package comes with these items:
(1) Thermostat

(1) Thermostat floor sensor

(4) Wire nuts (Marettes®)

(2) Mounting screws

(1) Screwdriver

Tools and supplies needed:

- No. 2 Phillips screwdriver

- Hole saw (if installing in an existing wall)

- Wire strippers, wire cutters, and other electrical tools

- Electrical wall box (plastic or metal)*

*NOTE: A single-gang extra-deep box allows sufficient space to connect 1 or 2

heating mats or cables. For 3 heating mats or cables, a 4-inch square extra-deep

electrical box with a single-gang “mud ring” is necessary. Alternately, a junction

box may be installed to connect multiple heating mats or cables, then run

power supply wire from the junction box to the control electrical box. See the

Installation Instructions provided with the floor heating system for more details.

Locating the Control

Find a suitable location for the control. It is designed for indoor dry location only.

It may be placed on an insulated or uninsulated wall, preferably an interior wall

to avoid overheating from outside sun heat. Keep it away from all water sources

such as sinks, showers, and bathtubs as well as heat sources such ashot-water

piping, heat ducting, wall-mount lighting, and direct sunlight. Locate it at a

suitable height, normally about 4-1/2’ to 5’ (1.4 m to 1.5 m) from the floor.

Mounting the Electrical Box

When mounting on an existing wall, cut the opening for the electrical box for the

control. To make it easier to pull the wiring, wait to install the electrical box until

after all wiring is drawn into this opening.
When mounting on an open wall, secure the electrical box for the control to the

wall stud.
When mounting on an open wall, conduit from the electrical box to the floor is

recommended (check local codes for requirements) for additional protection.

Install one conduit for the floor sensor. Install another conduit for the floor

heating system power leads. Refer to the Installation Instructions supplied with

the floor heating system for additional installation details.

Wiring

CAUTION: Turn off power at the circuit breaker before doing any

electrical work.

House Wiring

A qualified person should run a dedicated circuit from the main circuit breaker

panel to the control location. If a dedicated circuit is not possible, it is acceptable

to tap into an existing circuit. However, there must be enough capacity to handle

the load (amps) of the floor heating system being installed and any possible

appliance, such as a hair dryer or vacuum cleaner. Avoid circuits that have

ballasted lighting, motors, exhaust fans, or hot tub pumps due to

possible interference.
The circuit breaker should be rated 20 amps for total circuit loads up to 15 amps.

A 15 amp circuit breaker may be used for total circuit loads up to 12 amps. A

GFCI (ground-fault circuit interrupter) or AFCI (arc-fault circuit interrupter) type

circuit breaker may be used if desired, but is not necessary.

WARNING: Do not exceed 15 amps on this thermostat control. Doing so will

cause risk of fire hazard and damage.

Pull power supply wiring to the control location. Leave about 6 to 8 inches (15

to 20 cm) of wire for connections later. This wiring should be size 12 or 14 AWG

following appropriate local code requirements.

Floor Sensor

Pull the floor sensor wire up the wall (or conduit) to the control location, leaving

about 6 inches (15 cm) of wire for connection later. The sensor wire may be cut

shorter if desired, but do not cut it shorter until the sensor is fully installed

(see below).
Note: If the sensor wire is not long enough to reach the control location, it may

be extended an additional 15 feet (4.5 m) using minimum 20 AWG 2-conductor

unshielded wire, or an additional 50 feet (15 m) using shielded wire. When

using shielded wire, the “shield” must be connected to the lower sensor

terminal, nearest to Bus A. A junction box may be required by local code for the

connection to this extension wire.
After the floor heating system is completely installed according to its

instructions, secure the thick sensor tip to the floor. It must be located halfway

between heating wires and at least 1 foot into the heating area. Use hot-glue to

secure the sensor tip and wire in place. Do not cross over a heating wire. Avoid

placing it in an area where heating wires are spaced further apart than the rest

of the floor, like a large gap between mats or cables. Avoid placing it in an area

where a heat duct or recessed light will cause improper measurements. Try to

avoid locating it where future items such as a clothes hamper or similar could

trap heat and cause improper measurement.
Finish securing the sensor wire along the floor and up the wall. At the control

location, cut the sensor wire shorter if needed, leaving at least 6 to 8 inches (15

to 20 cm) of wire for connections later. Re-strip the sensor wire ends 1/8” to

3/16” (3 mm to 4.5 mm) long. If the ends are stripped longer than this they may

short-circuit resulting in an Err2 code.

Mat or Cable Power Leads

Pull the power lead wires from the floor heating system into the control

location. Leave about 6 to 8 inches (15 to 20 cm) of wire for connections.

On/Off and GFCI

On/Off and Reset

Pressing will turn the thermostat on or off. This also Resets

the thermostat to clear an error or GFCI fault. See “GFCI Testing” and

“Troubleshooting”.

GFCI Testing

The GFCI (Ground Fault Circuit Interrupter) in this control must be tested when

installation is finished and once each month.

• Make sure the control shows it is Heating. This may require temporarily

increasing the setpoint temperature.

• Press the button. GFCI TRIP should be indicated on the control.

There will also be a click sound, indicating power has been removed from

the floor heating system. If either of these indications fail, turn off the

thermostat and replace it. Do not continue to use.

• To reset the GFCI TRIP, press

on/off

off and back on.

Startup Wizard

This thermostat comes with a “wizard” to help the user through basic setup.

• When first powered up, or upon resetting the factory defaults, the display

will ask to set the year. Adjust the year by pressing

and press

• Select the month and press

• Select the day and press

• Set the hour and minutes (format is 12-hour clock but this can be changed

to a 24-hour clock). See Changing Settings Section.

• Select the sensing method (Floor or Air). Default is Floor. See cautions

before using the Air Sensing method. See Changing Settings Section.

• Select a program schedule. The default is called “Normal Day” where it

makes the floor warmer during morning and evening hours. Any of the

schedules can be customized to fit your needs.

• Press

and the thermostat will begin working automatically.

NORMAL DAY

Cycle

WAKE

LEAVE

RETURN

SLEEP

Monday –

Friday

6:00 AM

(6:00)

8:00 AM

(8:00)

5:00 PM

(17:00)

10:00 PM

(22:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

Saturday

7:00 AM

(7:00)

9:00 AM

(9:00)

5:00 PM

(17:00)

11:00 PM

(23:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

Sunday

7:00 AM

(7:00)

9:00 AM

(9:00)

5:00 PM

(17:00)

11:00 PM

(23:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

NOTE: Air Sensing mode default temperatures are 70F and 62F.

WARM ALL NIGHT

Cycle

WAKE

LEAVE

RETURN

SLEEP

Monday –

Friday

8:00 AM (8:00) 5:00 PM (17:00)

74 F (23.3 C)

82 F (27.8 C)

Saturday

9:00 AM (9:00) 5:00 PM (17:00)

74 F (23.3 C)

82 F (27.8 C)

Sunday

9:00 AM (9:00) 5:00 PM (17:00)

74 F (23.3 C)

82 F (27.8 C)

NOTE: Air Sensing mode default temperatures are 70F and 62F.

HOME DURING DAY

Cycle

WAKE

LEAVE RETURN

SLEEP

Monday –

Friday

6:00 AM (6:00)

10:00 PM (22:00)

82 F (27.8 C)

74 F (23.3 C)

Saturday

7:00 AM (7:00)

11:00 PM (23:00)

82 F (27.8 C)

74 F (23.3 C)

Sunday

7:00 AM (7:00)

11:00 PM (23:00)

82 F (27.8 C)

74 F (23.3 C)

NOTE: Air Sensing mode default temperatures are 70F and 62F.

Wire Connections

Match and connect the two wires marked “LINE1(L)” and “LINE2(N)” to the

house power supply wires using the wire nuts provided. Gently tug on the wires

to make sure they are secure, otherwise a wire could come loose and cause

failure. For added security, overwrap the connections with electrical tape.
Match and connect the two wires marked “LOAD1” and “LOAD2” to the power

lead wires from the floor heating system. Secure these wire connections the

same way with the appropriate size wire nut for the number of wire connected.

CAUTION: Make sure the house power supply voltage matches the voltage

rating of the floor heating system. Do not apply 240 VAC to a 120 VAC rated

system. Connecting the wrong voltage may cause overheating and damage

to the system, the control, floor coverings, etc.

Connect the house ground wire to the ground wire(s) from the floor heating

system. If the electrical box is metal, a short length of wire must be secured to

the electrical box from this ground connection.
Insert the ends of the floor sensor wire into the terminals marked “SENSOR” and

snug the screws. It does not matter which wire goes into which terminal

Infloor Relay 29053

version 2 only (Optional)

Read and follow the instructions provided with the 29053 Version 2.
Pull 18 AWG to 24 AWG 2-conductor shielded wire through the wall from the

Infloor Relay location to this control location. This wire may be up 100 feet (30

m) in length. Strip the wire ends 1/8” to 3/16” (3 mm to 4.5 mm) long. If the

ends are stripped longer than this they may short-circuit.
Connect the wire ends into the “BUS” A and B terminals. Make sure the wire in

“A” terminal is connected to an “A” terminal in the Infloor Relay.

Mounting the Control

Carefully press the wires back into the electrical box. Do not use the control to

push them in, as this may cause connections to loosen and possible failure.
Loosen the screw and remove the front module from the power module. Secure

the power module into the electrical box with the mounting screws provided.
Snap the front module onto the power module and tighten the screw. Press the

Screw Cover in place to cover screw.

Operation

Overview of Features and Display

Press a button if the display is dark. This wakes the display backlight.

on/off

GFCI

Test

Setpoint temperature

Floor temperature

Day

Time

Screw Cover

Cover Screw

Front Module

Load 1

Line 1

Line 2

Load 2

Floor Sensor

Connection

Power Module

Adjusting the Temperature

Normally the thermostat will run automatically based on the programmed

settings. However, these settings may be overridden temporarily or for a

specified period of time.

Overriding Temporarily

To only override the program until the next scheduled time, press

select the desired setpoint temperature. After a few seconds it will indicate

“HOLD SET TEMP UNTIL NEXT PERIOD” and CANCEL will show. To cancel this

override and return to normal scheduled settings press CANCEL .

Holding the Override

To override the program for a specific period of time, press HOLD . Select

whether to set this for a Continuous Hold or for a certain number of days by

pressing

. The number of days can be adjusted by selecting EDIT and

then pressing

. Press

to save this selection. The display will show

the Hold setting. The thermostat will operate at the setpoint temperature

continuously or for the number of days selected before returning to normal

schedule settings. This feature may be cancelled by pressing CANCEL .

Customizing the Program Schedule

Press PROGRAM . The schedule shown is set for the highlighted day shown at

the top of the display. This is a 7-day programmable thermostat, allowing each

day to have its own schedule. Press or to browse through each day(s)

schedule.

How does a schedule work?

Example:

• To have the floor warm up to 82F at 6:00 AM in the morning, set the WAKE

period to these values.

• To save energy and allow the floor to cool to 74F after leaving at 8:00 AM,

set the LEAVE period to these values.

• To have the floor warm again to 82F when returning home at 5:00 PM, set

the RETURN period to these values.

• Finally, to save energy overnight and cool the floor to 74F after 10:00 PM,

set the SLEEP period accordingly.

NOTE: With the SmartStart feature turned on (see SmartStart below), the

thermostat will learn how long it takes the floor to reach 82F and begin warming

up a little early, reaching 82F by the WAKE time 6:00 AM and again at the

RETURN time 5:00 PM.

Modifying the schedule

To modify the schedule, select the period desired and press EDIT .

Press or to adjust the time.

Press

to save.

Press or to adjust the temperature.

Press

to save.

Select another schedule to be edited, or press

to return to the home screen.

NOTE: To clear a period, useful if you want to only raise and lower the floor

temperature once in a day, select CLEAR . The thermostat will skip over this

period in the schedule. There must be two periods in the schedule.

Changing Settings

Date/Time

Press SETUP. Press to select “CLOCK” and press

. Adjust the hour and

press

. Adjust the minutes and press

. Adjust the year, month, and day and

press

to save and return to the home screen.

Clock and Temperature Format

Press SETUP. Select “°F/°C” by pressing

. The display will show the current

time and temperature formats. Select either °F / 12-hour clock or °C / 24-hour

clock. Press

to save and return to the home screen.

Floor Limit

The thermostat can be adjusted for the minimum and maximum allowable

setpoint temperatures of the floor sensor. This is useful when the floor covering

cannot exceed a certain temperature (84F is common for many wood or

laminate products. Consult your floor covering manufacturer for recommended

limits.). It is also useful to limit adjustment by users. And it is useful if the

thermostat is being operated in Air Sensing mode (see Sensor Regulation below)

but it is still desired to maintain a minimum floor temperature regardless of the

air temperature.
Press SETUP. Press to select “FLOOR LIMIT” and press

. Adjust the

Maximum and Minimum allowed floor temperature setpoints. Press

to save

and return to the home screen.

Sensor Regulation

The thermostat is designed to operate best in Floor Sensing mode. It is also

possible to operate in Air Sensing mode with Floor Sensing limitation. However,

make sure to set a proper maximum Floor Limit temperature (see Floor Limit

above) to avoid overheating certain floor coverings. Also note that internal

heating in the thermostat may affect the air sensor temperature reading.
Press SETUP. Press to select “AIR/FLOOR” and press

. Select the desired

sensor mode and press

to save and return to the home screen.

SmartStart

The thermostat is factory set with the “SmartStart” feature turned on. This

allows it to learn and automatically determine the best time to begin heating,

reaching the setpoint temperature at the scheduled time. For example, the

schedule may have a “WAKE” start time of 6:00AM to be 82F (27.8C) and

SmartStart may begin pre-heating at 5:30AM to reach 82F by 6:00AM.
If this feature is not desired, it may be turned off. Press SETUP. Press to

select “SMARTSTART” and press

. Select “ON” or “OFF” and press

to save

and return to the home screen.

Other Features

Usage

The thermostat stores in memory the number of hours that it is heating.

This information may be useful in calculating the energy used by the floor

heating system.
Press SETUP. Press to select “USAGE” and press

. The display shows the

number of hours it was heating today. Pressing will show the number of

hours it was heating the last 7 days and 30 days. To reset these counters to zero,

press CLEAR . Press

to return to the home screen.

Lockout

The thermostat has the ability to lock out adjustments. This may be useful in

public locations.
To use this feature, press and at the same time and hold for 2 seconds.

“LOCK” will show in the display. To cancel, press and at the same time and

hold for 2 seconds.

Calibration

Under special circumstances it may be desired to slightly adjust the temperature

that is displayed for the sensor. Normally this is not recommended. However, it

can be done by pressing SETUP for 2 seconds. The display will show “CAL” and

the current sensor temperature and the offset value. Adjust by pressing or

. Press

to save and return to the home screen.

Reset Factory Defaults

To reset all programming and settings to the factory defaults, press SETUP.

Press to select “FACTORY RESET” and press

. It will ask you confirm this by

pressing

again, or select BACK to cancel.

Troubleshooting

Problem

Solution

Thermostat works but no

heat from the system.

1. Check wiring connections.

2. If GFCI is tripped, reset thermostat

with on/off switch.

3. Check resistances on floor heating

system. See manual for system.

No display

1. Check wiring connections.

2. Check circuit breaker or other

protection “upstream” of

thermostat.

GFCI is tripped

1. Check wiring connections.

2. Reset thermostat by switching

on/off.

3. Check resistances on floor heating

system. See manual for system.

Heating occurs at the wrong

times

1. Check that the current time and

schedule times are properly set to

AM or PM.

2. On uninsulated concrete

SmartStart may start heating very

early. You may turn this feature off

if not desired.

Err1:Wrong floor sensor

Floor sensor not correct type or

out of range. Check floor sensor

resistance.

Err2:Floor sensor shorted

Floor sensor short-circuited. Turn off

power at breaker. Make sure wires

are not crossed at the terminals.

Or replace sensor. Or Reset Factory

Defaults.

Err3:Floor sensor missing

Floor sensor not attached and

thermostat is in floor sense mode.

Turn off power at breaker and attach

sensor. Or Reset Factory Defaults.

Err4/Err5:Internal sensor

fail

Internal air sensor is faulty. Replace

thermostat or operate in floor sense

mode.

Err6:Internal temp limit

Internal temperature overlimit. Make

sure sunlight is not directed at the

thermostat or other heat sources in

proximity. Make sure load does not

exceed 15 amps. Otherwise, turn

off power at breaker and contact

factory.

Err7:End-of-life

“End-of-life” indication. GFCI will no

longer function correctly or safely.

Reset the circuit breaker or replace

thermostat.

Specifications

Power Supply

120/240 VAC, 50/60 Hz

Maximum Load

15 amps, resistive

Maximum Power

1800 watts at 120 VAC

3600 watts at 240 VAC

GFCI

Class A (5 milliamp trip nominal)

Display Range

32°F to 99°F (0°C to 37°C)

Setting Range

40°F to 99°F (4°C to 37°C)

Accuracy

± 0.9°F (0.5°C)

Environment

Indoor dry location only

Storage Temperature 0°F to 120°F (-17°C to 49°C)

Floor Sensor

Thermistor, 10k NTC type, double-insulated

Memory

Programming retained indefinitely

Current time/day will need reset if power is lost more than 30 minutes.

ETL Listing

Control No. 3037530

Conforms to UL 873, UL 943, CSA C22.2 No. 24, CSA/CAN C22.2 No. 144

Limited Warranty

Infloor warrants this control (the product) to be free from defect in material

and workmanship for a period of (3) years from the date of original purchase

from authorized dealers. During this period, Infloor will replace the product or

refund the original cost of the product at Infloor’s option, without charge, if

the product is proven defective in normal use. Please return the control to your

distributor to begin the warranty process.
This limited warranty does not cover shipping costs. Nor does it cover a product

subjected to misuse or accidental damage. This warranty does not cover the cost

of installation, diagnosis, removal or reinstallation, or any material costs or loss

of use.
This limited warranty is in lieu of all other warranties, obligations, or liabilities

expressed or implied by the company. In no event shall Infloor be liable for

consequential or incidental damages resulting from installation of this product.

Some states or provinces do not allow limitations on how long an implied

warranty lasts, or the exclusion or limitation of incidental or consequential

damages, so the above exclusions or limitations may not apply to you. This

warranty gives you specific legal rights and you may also have other rights that

vary from state to state.

Infloor Sales and Service

503 Gregg Dr.

Buena Vista, CO 81211

800.608.0562

719.395.3555 FAX

www.infloor.com

Ask a Question ?