Just connect both the wires together in one of the terminals.

Why not just post the link from Google..The BDR91 is compatible; but you will have to "bind" it to the BDR91 as follows:
During the binding procedure keep approximately 1m distance between the room unit and the BDR91.
1. Press and hold the BDR91 push button for 15 sec to reset previously stored data. The red LED will start to flash at 0.1 s on/0.9 s off. Release the push button.
2. Press and hold the BDR91 push button for 5 sec to enter the binding mode. Red LED flashing at 0.5s on/0.5 s off confirms the binding mode has been entered.
3. Move the CM67NG slider to the OFF position (for CM61NG push the OFF button) and press the TEMP UP, TEMP DOWN and PROG 1 buttons together. The CM67/61NG will display InSt
4. Press the "i" button to send the binding signal. The red LED is switched off to confirm successful binding operation.
If red LED still flashes push the "i" button again until binding is successful.
Test as follows:
To check the RF communication move the CM67NG slider into OFF position (for CM61NG press the OFF button) then press the TEMP UP, TEMP DOWN
and PROG 2 buttons for 3 seconds. The unit will display tESt and it will send test signals to the receiver switching the green LED on and off every 5
seconds (relay output will remain off) for a maximum of 10 minutes.
NOTE: If the green LED is not switched at specified intervals follow the BINDING procedures again.
1. Couldn't find a link - nothing on Honeywell's site.
2. I had a copy of the instructions on my PC from when I owned a CM67 - about 10 year ago.
3. My instructions referred to the HC60NG so, to avoid confusion, I edited them to refer to the BDR91.
The BDR91 is compatible; but you will have to "bind" it to the BDR91 as follows:
During the binding procedure keep approximately 1m distance between the room unit and the BDR91.
1. Press and hold the BDR91 push button for 15 sec to reset previously stored data. The red LED will start to flash at 0.1 s on/0.9 s off. Release the push button.
2. Press and hold the BDR91 push button for 5 sec to enter the binding mode. Red LED flashing at 0.5s on/0.5 s off confirms the binding mode has been entered.
3. Move the CM67NG slider to the OFF position (for CM61NG push the OFF button) and press the TEMP UP, TEMP DOWN and PROG 1 buttons together. The CM67/61NG will display InSt
4. Press the "i" button to send g signal. The red LED is switched off to confirm successful binding operation.
If red LED still flashes push the "i" button again until binding is successful.
Test as follows:
To check the RF communication move the CM67NG slider into OFF position (for CM61NG press the OFF button) then press the TEMP UP, TEMP DOWN
and PROG 2 buttons for 3 seconds. The unit will display tESt and it will send test signals to the receiver switching the green LED on and off every 5
seconds (relay output will remain off) for a maximum of 10 minutes.
NOTE: If the green LED is not switched at specified intervals follow the BINDING procedures again.
Is it possible to keep the stat and purchase the bdr91 receiver seeing as that is what it was replaced with ? Will I be able to pair it up with the new receiver ?
Pretty sure not.
Really?The wiring for the BDR91 it is not similar to the R6660D
The writer has confused the earlier CM61 RF (~ 450 MHz) with the CM61NG RF (~880 MHz)Regarding the compatibility of the CM61NG to the BDR91 unfortunately they are not compatible. The CM61NG can operate with the HC60 receiver box.
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