Watts W561 Manuel utilisateur

Compatible With

• 1-stage heating

• Supports included floor sensor for radiant floor heating applications

WARNING

Please read carefully before proceeding with

installation. Your failure to follow any attached

instructions or operating parameters may lead to the

product’s failure.

Keep this Manual for future reference.

IOM-W561

Installation, Operation and Maintenance

W561 WiFi Thermostat

Works with the

Watts®Home Mobile App

Important Safety Information .................................................................................3

Installation ..............................................................................................................4

Preparation ........................................................................................................4

Removing The Thermostat Base.......................................................................5

Mounting The Thermostat .................................................................................5

Application W561-1............................................................................................6

Application W561-2 ...........................................................................................7

Application W561-3 ...........................................................................................8

Application W561-4 ...........................................................................................9

Sequence of Operation ........................................................................................10

Heating Operation ...........................................................................................10

User Interface.......................................................................................................11

User Settings........................................................................................................12

Away ................................................................................................................12

Schedule..........................................................................................................12

Display .............................................................................................................13

Time .................................................................................................................14

WiFi ..................................................................................................................15

WiFi and Connectivity Troubleshooting...........................................................16

Installer Settings...................................................................................................17

Setup ............................................................................................................... 17

Setup - Toolbox ...............................................................................................17

Setup - Temp ...................................................................................................18

Setup - Sensors...............................................................................................19

Setup - Alerts...................................................................................................19

Setup - Relays .................................................................................................19

Error Messages ....................................................................................................20

Technical Data ......................................................................................................21

Hydronic System Electronic Controls and Thermostats Limited Warranty.........24

Table of Contents

The App Store®is a registered trademark of Apple Inc.

The “Google Play” name and the Google Play Store icon are property of Google LLC.

It is your responsibility to ensure that this thermostat is safely installed according to

all applicable codes and standards. Watts®is not responsible for damages resulting

from improper installation and/or maintenance.

This is a safety-alert symbol. The safety alert symbol is shown alone

or used with a signal word (DANGER, WARNING, or CAUTION), a

pictorial and/or a safety message to identify hazards.

When you see this symbol alone or with a signal word on your

equipment or in this Manual, be alert to the potential for death or

serious personal injury.

This pictorial alerts you to electricity, electrocution, and shock hazards.

This symbol identifies hazards which, if not avoided, could result in

death or serious injury.

This symbol identifies hazards which, if not avoided, could result in

minor or moderate injury.

This symbol identifies practices, actions, or failure to act which could

result in property damage or damage to the equipment.

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 Watts.com

•

It is the installer’s responsibility to ensure that this thermostat is safely installed

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. Other controls that

are intended and certified as safety limits must be placed 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 warranty.

Important Safety Information

Tools Required

• Watts or jeweler screwdriver

• Phillips head screwdriver

• Wire stripper

• Drill (for wall anchor)

• 3⁄16" drill bit (for wall anchor)

Materials Required

• 18 AWG LVT Solid Wire (Low Voltage Connections)

Consider the following:

• Interior Wall.

• Keep dry. Avoid potential leakage onto the control.

• Relative Humidity less than 90%. Non-condensing environment.

• No exposure to extreme temperatures beyond 32-122°F (0-50°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.

• The maximum length of wire is 500 feet (150 m).

• Strip wire to 3⁄8" (10 mm) for all terminal connections.

• Use standard 8 conductor, 18 AWG wire.

Installation

Preparation

Installation Location

To prevent the risk of personal injury and/or death, make sure power is

not applied to the thermostat until it is fully installed and ready for final

testing. All work must be done with power to the circuit being worked

on turned off.

Please be aware local codes may require this thermostat to be installed

or connected by an electrician.

Thermostat

Front

Thermostat

Base

Stud

Switch

Box

3 1/4"

(83 mm)

While holding the base section in one hand, pull

the lower half of the display front towards you to

pivot it away from the base.

Wall

Stud

Thermostat

Front

Thermostat

Base

Removing the Thermostat Base

Mounting the Thermostat

Legend

B1 = Boiler

BP = Boiler Pump

PS = System Pump

T1 = W561 WiFi Thermostat

V1 = Zone Valve

ZVC1 = Zone Valve Control 304V or 306V

ZVC1

The W561 WiFi Thermostat operates a radiant floor heating system. The thermostat

uses the built-in air temperature sensor.

W561 WiFi Thermostat

RH1

AWAY

SEN

COM

Zone Valve Control or

Switching Relay

AWAY

Mechanical

Electrical

Application W561-1

Legend

B1 = Boiler

BP = Boiler Pump

PS = System Pump

T1 = W561 WiFi Thermostat

S1 = Floor Sensor 079

V1 = Zone Valve

ZVC1 = Zone Valve Control 304V or 306V

ZVC1

The W561 WiFi Thermostat operates a radiant floor heating system based upon the

floor temperature sensor, included. The built-in air sensor is disabled.

W561 WiFi Thermostat

RH1

AWAY

SEN

COM

Zone Valve Control or

Switching Relay

AWAY

Mechanical

Electrical

Application W561-2

The W561 WiFi Thermostat operates a radiant floor heating system. The thermostat

uses both air and floor temperature sensors. The air temperature sensor can be either

built-in and/or external.

ZVC1

Legend

ZVC1

W561 WiFi Thermostat

RH1

AWAY

SEN

COM

Zone Valve Control or

Switching Relay

AWAY

B1 = Boiler

BP = Boiler Pump

PS = System Pump

T1 = W561 WiFi Thermostat

S1 = Floor Sensor 079

S2 = Optional Indoor Sensor 084

V1 = Zone Valve

ZVC1 = Zone Valve Control 304V or 306V

Mechanical

Electrical

Application W561-3

The W561 WiFi Thermostat operates a baseboard/radiator using an air temperature

sensor. The air temperature sensor can be either built-in and/or external.

ZVC1

W561 WiFi Thermostat

RH1

AWAY

SEN

COM

Zone Valve Control or

Switching Relay

AWAY

Legend

B1 = Boiler

BP = Boiler Pump

PS = System Pump

T1 = W561 WiFi Thermostat

S1 = Optional Indoor Sensor 084

V1 = Zone Valve

ZVC1 = Zone Valve Control 304V or 306V

Mechanical

Electrical

Application W561-4

The heating setpoint can be set from 40 to 95°F (4.5 to 35°C). The Heat On symbol is shown

on the display when the thermostat is heating. Heating for freeze protection is provided

whenever the air or floor temperature falls below 40°F (4.5°C), regardless of operating mode.

Regular Heating

W1 relay is on when the air temperature falls 1.5°F (1°C) below the Heat To setting.

When the temperature reaches the Heat To setting, the relay turns off.

Radiant Floor Heating

When Radiant Floor Heating is selected in the setup menu, the W1 relay operates using

Pulse Width Modulation. This improves comfort for radiant systems with high mass floors.

• 100% on time at Heat To setting -1.5

• 50% on time at Heat To setting

• 0% on time at Heat To setting + 1.5

Room Sensor and Averaging

The thermostat can measure room temperature between -46 to 212°F (-43 to 100°C).

The room temperature can be measured using a combination of the built-in and

auxiliary sensors.

• Built-in room sensor only

• Built-in room sensor with auxiliary room sensor(s) (temperature is averaged)

• Auxiliary room sensor only

Floor Sensor for Radiant Floor Heating

The thermostat can measure floor temperature between -46 to 212°F (-43 to 100°C).

If a floor sensor is connected, floor minimum and maximum settings are available.

The floor heating setpoint is adjustable from 40 to 100°F (4.5 to 38.0°C).

For a combination of air and floor temperature control, leave the internal air sensor on

in the setup menu. A floor minimum can be used to prevent a fast drop in temperature

caused by receding solar exposure. This operation is recommended for areas heated

by afternoon sun through large windows. When the sun sets, 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.

A floor maximum is 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.

If there are more than one floor temperature sensors, the temperature is averaged.

Warm Weather Shut Down (WWSD)

The heating system can automatically shut off based upon the outdoor temperature

and the WWSD setting. This provides a convenient way to shut off radiant floor heating.

Sequence of Operation

Heating Operation

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