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10

CM700 Wireless - Programmable Room Thermostat

4.5.2 Category 2 - System Settings

5) Additional Installation Information

5.1 Binding / Rebinding Procedure

The binding operation described below is required if:

•  Any of the system components (room thermostat or relay box) are replaced.
•  The relay box has incorrect or no binding data stored (e.g. when pre-bound system pack components 

have been mismatched).

NOTE:

 During the binding procedure keep approximately 1m distance between the room thermostat and 

the relay box.

To bind/rebind:

1.

  Press and hold the relay box push button for 15 seconds to reset any previously stored data. After 15 

seconds the red LED will change to flashing 0.1sec on/0.9sec off. 

 

NOTE:

 After 5 seconds the red LED will start to flash 0.5sec on/0.5sec off, but continue to hold the 

button).

2.

  Release the push button.

3. 

Press and hold the relay box push button for 5 seconds to enter the binding mode. The Red LED will 

start flashing at 0.5sec on/0.5sec off to confirm the binding mode has been entered.

4. 

Press the 

OFF

 button on the room thermostat. Then press the     and   buttons together along with 

the   button. The unit will display InSt and ‘CONTROL BINDING’.

5.

  Press the green   button to send the binding signal out to the relay box. The red LED is switched off 

to confirm successful binding operation. If the red LED still flashes push the button again until binding 

is successful.

6. 

Now go to Section 

2) Installing the CM700 Wireless System

 to setup the system.

Note

1) Remember to always press the green   button to confirm that you want to store your new Installer Set-

Up setting. To exit the Installer Mode press the 

AUTO

 or 

MAN

 button.

Parameter

Parameter 

No.

Factory Default Setting

Optional Setting

Category 2 Parameters – System Settings (press the 

 button to access this category)

Display Description

Display  Description

Minimum boiler 

ON time

1:Ot

1

1 minute minimum 

ON time

2 to 5

Selection of 2, 3, 4 or 5 minutes 

minimum ON time

Cycle Rate

2:Cr

6

6 cycles per hour 

(cph)

3,9 or 

12

Selection of 3, 9 or 12 cph

Pump Exercise

5:PE

0

Pump exercise 

disabled

1

Pump exercise enabled

System 

Synchronisation

6:Sn

0

Standard operation 

of the Room Unit

1

Room unit configured as 

Synchroniser

Loss of 

Communications 

Instruction

7:LC

0

Relay Off

1

Relay 20% on / 80% off

Summary of Contents for CM721

Page 1: ...roducts from individual system packs are separated or mixed with other pre configured system packs during installations please refer to section 5 1 Binding Rebinding Procedure to bind the desired units together and allow them to communicate with each other Table of Contents Section Page 1 Installation Information 2 2 Installing the CM700 Wireless System 3 2 1 Installing the Relay box 3 2 2 Install...

Page 2: ... strength of the RF signal reaching the relay box depends on the number of walls and ceilings separating it from the room thermostat as well as the building construction the diagram below illustrates an example of typical signal strength reduction Walls and ceilings reinforced with steel or plasterboard walls lined with metal foil reduce the RF signal significantly more Once a position is selected...

Page 3: ...iance considerations Keep AC mains supply load cables separate from signal wiring Refer to Code of Practice standards EN61000 5 1 and 2 for guidance NOTE The Relay Box contains no user serviceable parts It should be opened and installed by qualified installer only WARNING Electrostatic sensi tive device Do not touch the circuit board NOTE All wiring must be in accordance with IEE regulations CAUTI...

Page 4: ...the green button to confirm c Press the or buttons to set the current year e g yr 07 2007 then press the green button to confirm The date is now stored d Use the or buttons to set the correct time then press the green button to confirm Each press of the buttons will change the time by one minute and holding them down will change the time slowly at first and get progressively quicker Note If this m...

Page 5: ...djust the setpoint up to the maximum 35 C by pressing the button The boiler should come on green LED ON on relay box after a few seconds and the symbol appears on the room thermostat LCD display 5 Press the OFF button The boiler will go off green LED OFF on relay box after a few seconds and the symbol disappears 6 Check the system operation by alternately pressing the MAN and OFF buttons several t...

Page 6: ...iod of 1 hour the red LED will illuminate to indicate that no RF messages have been received during the last hour The relay box will also enter the failsafe mode as selected in Installer Mode see section 4 2 BDR91 Relay box Fail Safe Mode Setup To allow manual control of the relay box output manual override is available in fail safe mode When RF communication is restored the relay box will automat...

Page 7: ...o indicate the selected fail safe mode IMPORTANT To enable the frost protection when RF communication is lost select the fail safe mode 1 For systems with separate frost protection thermostat or where frost protection is not required select fail safe mode 0 1 Press the OFF button 2 Press and hold the button and the two PROGRAM and buttons together 3 The unit will display the first parameter of ins...

Page 8: ...e preset period expires the CM721 CM727 will display the SERVICE icon Set parameter 19 SP to the required value to enable maintenance alert Value set to zero disables the function Summer Winter Auto time change This feature moves time automatically on the last Sunday of March and the last Sunday of October The feature is factory enabled To enable Set parameter 3 tC category 1 to 1 Temperature Offs...

Page 9: ...1 Auto Summer Winter Time Change Enabled 0 Auto Summer Winter Time Change Disabled LCD Backlighting 5 bL 1 Backlighting Enable 0 Backlighting Disabled Upper Temp Limit 6 uL 35 35 C Upper Temp Limit 21 to 34 21 C to 34 C adjustment in 1 C steps Lower Temp Limit 7 LL 5 5 C Lower Temp Limit 5 to 21 6 C to 21 C adjustment in 1 C steps Optimisation 8 OP 0 Optimisation Disabled 1 Optimisation Enabled Te...

Page 10: ...tton on the room thermostat Then press the and buttons together along with the button The unit will display InSt and CONTROL BINDING 5 Press the green button to send the binding signal out to the relay box The red LED is switched off to confirm successful binding operation If the red LED still flashes push the button again until binding is successful 6 Now go to Section 2 Installing the CM700 Wire...

Page 11: ...correct or incomplete binding procedure Incorrect position of the room thermostat during binding Repeat the binding procedure Repeat the binding procedure keeping approx 1 m distance between the relay box and the room thermostat The red LED on the relay box is illuminated Communication loss The relay box receives no RF messages from the room thermostat RF signal is blocked due to wrong location of...

Page 12: ...and by its Authorised Representative Honeywell International Inc Honeywell Control Systems Ltd Arlington Business Park Bracknell Berkshire RG12 1EB Technical Help Desk 08457 678999 www honeywelluk com Hereby Honeywell declares that this CM727 CM721 room thermostat and BDR91 Relay Box are in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC 2006 95 EC a...

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