Schneider Electric Wiser Air Thermostat Installation Guide

Installation Guide

Wiser Air™ Thermostat

Wiser Ai r Installation Gu ide

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Safety information

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it. The following special messages may appear throughout this installation guide or on the equipment to warn of potential hazards or to call attention to information

that claries or simplies a procedure.

The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death

or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in

death or serious injury.

NOTICE

NOTICE is used to address practices not related to physical injury.

Please Note

Electrical equipment should be installed, operated, serviced, and maintained only by

qualied personnel. No responsibility is assumed by Schneider Electric for any

consequences arising out of the use of this material.

A qualied person is one who has skills and knowledge related to the construction,

installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved.

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Wiser Ai r Installation Gu ide

Before You Start

Read the information in this section in its entirety before you begin the installation of Wiser Air.

TOOLS PROVIDED MATERIALS

• Wire stripper

• Drill

• Screwdriver

• Level

• Voltmeter

Preparation

• Disconnect power to the air conditioning and/or heating system.

• It is recommended to use a properly isolated voltmeter to conrm power is off.

• Wiring must conform to all building codes, regulations, and ordinances as required

by local and national code and regulation authorities.

• Ensure all electrical loads (air conditioners, heating elements, etc.) that will be

controlled by Wiser Air are connected to appropriate fuses to prevent overload.

• Ensure Wiser Air is suitable for the environment. Check the voltage compatibility ( 24V).

• Wiser Air outputs are rated at 1A maximum.

Location

• If this is a new installation, install Wiser Air 5ft (1.52m) above the oor surface in

accordance with applicable building codes.

• Install Wiser Air in areas with frequent occupancy and airow.

• Avoid installing Wiser Air in locations near heating/cooling devices.

• Avoid installing Wiser Air in areas with direct sunlight. The screen may become unreadable due to direct sunlight or reection from windows, and temperature

regulation may be affected.

• Avoid installing Wiser Air behind doors, near corners, near air vents, or in areas with high dust concentration.

Mounting

1. Keep the front of Wiser Air separate from the back plate before mounting.

2. Align the Wiser Air back plate against a wall using a level and mark the placement of the mounting holes.

3. Using a 3/16in (4.8 mm) drill bit, drill a hole to a depth of 1 in (25.4 mm) and

install wall anchors at the marked locations. If a stud is present no anchors are

necessary.

• Wiser Air front

• Wiser Air back plate

• Wiser Air trim plate

• Screws (x2) and anchors (x2)

• Wire extender

• Installation guide

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Cleaning and care

• Use a soft, lint-free dry cloth for cleaning.

• Avoid getting moisture in openings.

• Do not use cleaning products or compressed air.

• Never use tools directly on the touchscreen.

• Never use paint on Wiser Air.

• Do not drop or crush Wiser Air, or allow Wiser Air to come into contact with liquids.

• Do not use a damaged device (such as one with a cracked screen).

• Functionality guarantees are no longer valid if the glass on the screen is broken.

Installation Procedure

WARNING

MERCURY HAZARD

If replacing an existing thermostat that uses a sealed tube of mercury, do not dispose of the tube in the trash. Contact local waste management authorities for information on the safe disposal or recycling of the mercury.

Failure to safely dispose of the mercury can result in exposure leading to serious health damage.

Optional trim plate mounting

If you are replacing an existing thermostat, you have the option of using the provided Wiser Air trim plate. If the hole left by the removal of the existing unit is larger than the

back plate of the Wiser Air thermostat, use the optional trim plate. Run the wires and anchor the mounting screws through it while attaching the back plate to the wall (Fig. 2). Make sure to attach the trim plate with the central hole oriented upwards.

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Wiser Ai r Installation Gu ide

Installing Wiser Air

1. Disconnect power to the HVAC system by turning off the breaker.

2. Remove the existing thermostat’s panel from the wall without disconnecting the

wiring.

3. Take a picture of the wiring of the terminal connections. If necessary label the

wires to prevent confusion (Fig. 1).

Figure 1 :

Removal of existing thermostat and photograph of wiring.

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TIP: Before proceeding further determine if you require the optional trim plate.

TIP: Before proceeding further check if you require a wire extender (see Appendix).

4. Disconnect the wiring of the existing thermostat and remove the back plate.

TIP: Acceptable wire gauge for use with Wiser Air is solid 18 to 22 AWG (0.33 to 0.82mm²).

5. Pull the wires 6in (15cm) out of the wall if they are not already pulled out.

6. Insert the wires through the central hole in the Wiser Air back plate.

7. If required, strip each wire 0.25in (0.6cm) from the end (does not apply to

replacing pre-existing units).

8. Connect the wiring to the Wiser Air back plate, matching the terminal connections

to those in the photograph of the existing thermostat’s wiring or according to the wiring requirements of your HVAC system.

TIP: See the Wiring terminals section (p.7) in this guide before going further, or contact the

Customer Care Center for assistance if necessary.

Figure 2 : Wiring connection and back plate attachment (optional trim plate shown).

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Wiser Ai r Installation Gu ide

9. Gently push the wiring back into the hole.

10. Attach the Wiser Air back plate to the wall using the provided screws in the mounting holes in the top and bottom (Fig. 2).

11. Attach the front of Wiser Air to the back plate, making sure that the front is oriented correctly so that the terminal pins on the front panel match the pins on the back

plate. Do not use excessive force on the Wiser Air as this can damage the terminal

pins (Fig. 3).

Figure 3 :

Front to back plate mounting.

12. Remove the protective plastic cover from the LCD touchscreen.

13. Reconnect power to the HVAC system.

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Wiring terminals

This section describes the procedure for connecting the wiring to the back plate. (Fig. 4) shows the Wiser Air backplate conguration.

When replacing an older thermostat, refer to the photograph of the original wiring

taken in Step 3 terminals. See the caution below.

For a new installation, consult the documentation for your HVAC system to determine the correct wiring terminal connections. Match the wiring labels to the terminal labels.

of the installation procedure to connect the wiring to the correct

NOTICE

EQUIPMENT

O/B

OPERATION HAZARD

• If a wire is connected to

the RH terminal you must

remove the backplate

jumper.

• Never use any tools on

screwless terminals of Wiser Air.

Failure to remove this jumper can cause damage to your Wiser Air.

Save the backplate jumper for

future use.

Figure 4 : Wiring terminals and jumper.

TIP: If you are unsure whether your wiring requires the use of the Wiser Air jumper, remove the

jumper and test the system to see if the heating comes on. If it does, your installation is complete. If it does not, contact the Customer Care Center.

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Wiser Ai r Installation Gu ide

Troubleshooting

If you experience difculties with your Wiser Air thermostat setup, proceed as follows:

• Disconnect power.

• Check that the front plate of Wiser Air is properly connected to the back plate.

• Check that the wires connected to the terminals on the back plate are properly

attached.

Terminal descriptions

Connection Description Notes

RC Cool 24V power supply Required

G Fan relay

W2 Heating relay (Stage 2)

Y2 Compressor relay (Stage 2)

O/B Cool/Heat active reversing valve

S1 Outside air sensor

C Common Required

RH Heat 24V power supply Only if RC is connected

W Heating relay

Y Compressor relay

U Universal (W3)

S2 Outside air sensor

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Touchscreen Display

Installation wizard

When installing a new Wiser Air for the rst time, an installation wizard will launch to guide you through the initial conguration and registration of the device as soon

as the device is connected. Follow the instructions shown. For more information,

go to: www.wiserhome.com/support.

TIP: For on-the-go control of your thermostat, download the Wiser Air application from the App

Store, Google Play or Microsoft Store.

Smart Sense display

Wiser Air has a built-in advanced motion sensor. When it detects a person in proximity, it will show a limited display.

In order to conserve energy, the display is inactive when no presence is detected by the sensor.

Figure 5 : Wiser Air welcome screen.

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