Honeywell thermostat CM927 7 Day Wireless Programmable Thermostat User Manual

CM927 - User Guide
7 day Wireless Programmable Room Thermostat
with LoT TechnologyDescription
The  Honeywell  CM927  is  a  ‘wireless’  programmable  room  thermostat  designed  to 
control your heating system efficiently, providing comfortable temperatures when you 
are at home and energy savings when you are away. With ‘wireless’ communication 
there is no need to provide a wired connection between the thermostat and boiler.
The  following  instructions  explain  how  to  set  up,  program  and...

Contents
GETTING STARTED WITH THE CM927
STEP 1: Installing the Batteries .........................................3
STEP 2: Setting the Date and Time  ...................................4
STEP 3: Running the Built-In Heating Program  ................4
PROGRAMMING  THE CM927
The Built-in Heating Program ............................................5
Reviewing the Heating Program  .......................................5
Modifying the Heating Program  ........................................5
Disabling /...

3
This section shows you how to setup and run the thermostat in 3 simple steps:
STEP 1: Installing the Batteries
Note:  Please  follow  the  instructions  in  this  section  only  if  the  thermostat  screen  is 
blank (no symbols or digits are displayed). If the screen displays some information 
move on to STEP 2: Setting the Date and Time.
To install the Batteries:
a.
 Lift up the front cover of the thermostat to reveal the battery cover and product 
controls.
b.
  Remove  the  battery  cover  by...

4
STEP 2: Setting the Date and Time
To set the Date and Time:
a.
 Move the slider switch to the DATE  position. ‘SET THE DAY’ will be displayed on 
the screen and the day digits will be flashing.
b.
  Use the   or  buttons to set the correct day. When either of these buttons are pressed ‘DAY OK?’ will be displayed. Once the correct day is reached, press 
the green  button to confirm.
c.
  Now the month digits will start flashing and ‘SET THE MONTH’ will be displayed. Change the month and then the year...

5
pRoGRAMMING THE CM927 
The Built-in Heating Program
The built-in heating program has 6 temperature level changes per day that can be 
set  between  3.00am  and  2.50am  the  following  day  -  allowing  you  to  maintain  the 
evening  temperature  after  midnight.  Each  temperature  level  can  be  set  between 
5°C  and  35°C,  and  adjusted  in  0.5°C  increments.  The  factory  default  program  for 
heating is as follows:
Reviewing the Heating Program
To review or edit the heating program move...

6
pRoGRAMMING THE CM927 
b. To adjust the period start time press the   or  buttons and ‘TIME 1 OK?’ will be displayed. Holding the button down will change the time quickly.  Note: If you are pressing the   or  buttons and the display flashes the next change period, it means the next change will be pushed forward if you continue 
to press   or  buttons).
c.  Press the green  button to confirm the setting. ‘CHANGES SAVED’ is displayed 
for 1.5 seconds then ‘SET TEMP 1’ will be shown. 
 Note:  If  the...

7
pRoGRAMMING THE CM927 
i. To  exit  the  programming  mode  move  the  slider  switch  to  the  desired  operating mode -  AUTO, MAN  or OFF.  Note: To run the adjusted program select the  AUTO 
mode.
  Note: If  the  unit  is  left  in  programming  mode  for  more  than  10  minutes  without 
the  slider  being  moved  or  any  buttons  pressed,  ‘MOVE  THE  SLIDER’  will  be 
displayed.  Press  a  button  to  finish  programming  the  thermostat  or  move  the 
slider to select the desired operating...

8
opERATING THE CM927
Choosing the Operating Mode
The  thermostat  can  operate  in  three  different  modes:  Automatic,  Manual  or  Off.  To 
set  the  operating  mode  move  the  slider  switch  to  the  desired  position.  The  screen 
indicates which mode is currently active by displaying AUTO, MAN or OFF.
•	AUTO (automatic) mode
 Automatic mode sets the thermostat to follow the temperature program (default or  personalised).  Operating  the  thermostat  in  this  mode  is  the  best  way  to...

9
opERATING THE CM927
•	Temperature Override
 During  normal  operation  (AUTO  mode)  the  programmed  temperature  can  be 
adjusted  manually  by  pressing  the    or   buttons.  The  ‘target‘  temperature will be displayed and flash for 5 seconds – during this time the   or  buttons can be used to modify the set value.
 Note:  This  temperature  override  is  cancelled  at  the  next  programmed 
temperature change.
Using the Special Functions
•	 HOLIDAY Function
 The  holiday  function  allows  you...

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opERATING THE CM927
•	PARTY Function
 The  party  function  allows  you  to  extend  your  heating  program  by  a  specified number  of  hours  at  a  particular  temperature  before  resuming  with  the  normal 
temperature  program.  This  is  especially  useful  when  you  want  to  maintain  or 
increase  the  temperature  during  a  special  occasion  such  as  a  party  or  when 
entertaining guests.
 This  function  can  also  be  used  to  reduce  the  temperature  when  you  leave  the house...