Manual Honeywell CM721 (page 14 of 16) (English)

471572

Zoom out

Zoom in

1/16

How do I change the batteries on the

thermostat when they run out?

The thermostat constantly monitors the battery

power level, which typically lasts for about 2

yearsbeforeneedingreplaced.Whenthepower

is running low a ashing  symbol will be

displayedonthescreen.Tochangethebatteries

followthe stepsin theabovesection(‘STEP 1:

Installing the Batteries

’ onpage3), replacing

the used batteries with new ones in Step c.

Note:Whilechangingthebatteriesyourprogram

settingswillbestoredbutyoumayneedtoadjust

thetimesettingstobecorrect.

How do I set one temperature for the

whole day?

To operate as a simple thermostat with one

temperature throughout the day, select the

manual operating mode by pressing the

MAN button. Adjust the temperature by

pressingthe  or buttons- thiscan be

setanywherefrom5°Cto35°Cin0.5°Csteps.

The thermostat will continue to maintain this

temperature until another operating mode is

selectedorthetemperatureisadjusted.

FAQ’s

BDR91 Relay Box Controls Layout

The relay box will normally be found mounted

close to the boiler.

What does it mean when the BDR91

relay box green LED is ON?

The green LED indicates normal operation of

the radio frequency system. When the green

LED is ON the boiler is also ON. When the LED

is OFF the boiler is OFF.

When do I need to use the push

button?

You should use the push button to control your

boiler only when the RF communication is lost

(see the Troubleshooting Guide).

Push button

and relay

status LED’s

This product and its associated documentation and packaging are protected by various

intellectual property rights belonging to Honeywell Inc. and its subsidiaries and existing under

the laws of the UK and other countries. These intellectual and property rights may include patent

applications, registered designs, unregistered designs, registered trade marks, unregistered

trade marks and copyrights.

Honeywell reserves the right to modify this document, product and functionality without notice.

This document replaces any previously issued instructions and is only applicable to the

product(s) described.

This product has been designed for applications as described within this document. For use

outside of the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be

held responsible for misapplication of the product(s) described within this document.

Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell

Technologies Sàrl, ACS-ECC EMEA, Z.A. La Pièce 16, 1180 Rolle, Switzerland by its Authorised

Representative Honeywell Inc.

Green light on red light flashing box next to boiler why .
Thank youb Submitted on 6-4-2022 at 21:00
Reply Report abuse

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Honeywell CM721 in the language / languages: English as an attachment in your email.

The manual is 0,61 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Honeywell CM721

Honeywell CM721 Installation Guide - English - 12 pages

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Honeywell CM721 Manual

Product: