Honeywell Y87RFC User Manual

32300942-012 B
2. After five seconds the current
room temperature will be
displayed once again. The
thermostat will then try to
maintain your set temperature
as accurately as possible.
You can check your set
temperature by turning the
dial one ‘click’ to the left or
right. The set temperature will
flash up for a few seconds,
before returning to display
the room temperature again.
Setting your room temperature
1. Your current room temperature
is shown in the display. To
set the temperature you
want, just turn the dial right to
increase and left to decrease.
Each ‘click’ as the dial turns
represents a 0.5°C change.
Replacing the
batteries
The batteries should be replaced
when the symbol is displayed.
Remove the dial (1) and separate
the thermostat (2) from the
mounting plate (3). Replace the
discharged batteries with two new
AA alkaline batteries, then reattach
the thermostat to the mounting
plate and replace the dial.
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EN | User Guide
Night-time temperature reduction
Overnight, or if you are out, it is best to set the thermostat to
a lower temperature, as it will save you energy. In general a
reduction of 5°C is recommended, but this will depend on your
heating system and the amount of insulation in your home.
Y87RFC Connected Single Zone Thermostat
Getting to know your display
Troubleshooting
Low batteries
If you see this battery icon then you need
to replace the batteries right away.
No power to the thermostat
If the thermostat screen is blank after initial installation,
then check the protective tab has been removed from
the batteries. Otherwise, try replacing the batteries.
RF communication error
If these icons are flashing, then there may be an issue
with the signal from the Boiler Relay. First check there is
mains power to the Boiler Relay. If this does not resolve
the problem, consult your installer.
Defective thermostat
If this icon is displayed then the thermostat is no
longer functioning and will need to be replaced.
Set Temperature Indicator
Means the figure on the screen is your set temperature,
rather than your current room temperature.
Boiler Relay Connection
Means your thermostat is successfully
connected to your Boiler Relay.
Internet Gateway Connection (optional)
Means your thermostat is successfully
connected to your Internet Gateway.
Heating on
Means there is a requirement for some heating, so
your boiler should either be on or cycling on/off.

Honeywell Y87RFC Specifications

General

Connectivity	Wireless
Power Source	Battery
Wireless Protocol	Wi-Fi
Programmable	Yes
Compatibility	Works with most heating and cooling systems
Display	LCD
Battery Type	AA Alkaline
Operating Temperature Range	0°C to 35°C
Temperature Range	40°F to 90°F

Summary

Setting Your Room Temperature

Adjusting Room Temperature

Learn how to increase or decrease room temperature using the dial, with each click representing a 0.5°C change.

Night-time Temperature Reduction

Understanding Your Display

Set Temperature Indicator

Identifies the target temperature setting on the display, distinguishing it from current room temperature.

Heating Status Indicators

Explains icons for heating on and successful boiler relay connection.

Internet Gateway Connection Status

Shows the status of the connection to the Internet Gateway for remote operation.

Troubleshooting Common Issues

Low Battery Alert

Notifies users to replace batteries when the low battery icon appears on the display.

Thermostat Power Issues

Guides on resolving a blank screen by checking battery tabs or replacing batteries.

Communication Error Resolution

Addresses RF communication errors, suggesting checks for Boiler Relay power.

Defective Thermostat Identification

Identifies a defective thermostat when a specific icon is displayed, requiring replacement.

Remote Operation Capabilities

Connected Symbol Status

Indicates the thermostat is successfully bound and communicating with the Wireless Internet Gateway.

Remote Set Temperature Change

Shows a square border around the connected symbol when the set temperature is altered remotely.

Other Display Symbols

Explains additional symbols like clock, lock, and off status for remote control.

Binding Thermostat to Internet Gateway

Initiating Binding Process

Steps to activate the binding screen and send the binding signal for gateway connection.

Binding Confirmation

Details on successful binding confirmation via gateway LED and signal strength display.

Gateway Account Setup

Instructions to create an online account and download the smartphone app for gateway control.