Upgrade your Intercom

Many models upgrade to either Nutone or M&S Systems latest units.

Check your wiring
All current Nutone & M&S models use home-run wiring.
Some older Nutone models used 'loop wiring' rather than
'home-run' (a separate wire runs from 'home' to each satellite).
If the wiring is looped, you must rewire to upgrade.

We can provide the upgrade path for many old systems.

Your current model number will always be either on the top front corner
or printed inside on a door on the front of your system.

There are old photos of old models on an attached page -
Click here to view old Nutone model photos.

Click on your Nutone or M&S Model number below for upgrade paths.

For a PDF file - Upgrading.
Click here to download

-------- Upgrade Nutone 3 wire models to Nutone --------			Upgrade to
203 303 313 323 2011/2012 2015/2016 2031/2032	2034/2035 2036 2053/2054 2055/2056 2057/2058 2062 2063/2064	2065 2067/2068 2071 2090/2091 3003 3103	IMA3303
------- Nutone 3 wire models to M&S Systems DMC -------
IM-203/313 IM-3103 IMA3303 IMA-203D IMA-303 IMA-2003	IMA-3003 IMA-3303 2011/2012 2015/2116 2031/2032 2053/2054	2055/2056 2067/2068 2071 2090/2091	M&S Systems DMC
-------Upgrade 4 wire models to M&S DMC --------
M&S Model 150 MC170 MC300/350/350A N300, N350 MC602 MC603	M&S 10 Series 20 Series 30 Series 200/220/250 300/330/350	Nutone IM-3204
-------Upgrade 6 wire models to M&S DMC --------
M&S 40 Series 44 Series 440/443/448 500 Series MC-702 SM-428	M&S 70, 78 80, 88 and N80 MC440 and NC440 MC500 MC-800	Nutone IM-406 IM-4006 2401/2402 2540/2541 2542 2561/2562

Your may be able to upgrade Nutone to either IM-4406 or IM-5000. If your wiring is 'home run' - that is a wire runs individually to each remote from the master station - you can convert to either system. If not, you must convert to the IM-5000 system.
6 or 8 wire Homerun Wiring	to IM-4406	6 or 8 wire models	to IM-5000
SM428 406 428 806 2416 2500 2501 2510 2540 2541 2542 2561 2562 4006		SM428 406 428 806 2416 2500 2501 2510 2540 2541 2542 2561 2562 4006

Shipping cost are estimated - you will be charged only Actual Shipping Cost + $2 pack/box.

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