NuTone IMA-3033 Series Master Station Wire Matching Chart, Connecting the Remote, Speaker Wiring

INSTALLATION (Continued)

Wire Matching Chart							1		2
NuTone has adopted the use of a 3-wire color-coded cable. If						RED
						SILVER
you are replacing an older model radio-intercom, use this chart						CENTER
to match the copper/center/silver designations of older wiring				FOR SYSTEMS
						BLUE
with the blue/grey/red-stripe color-coded wire.
				USING 10-13		COPPER
				SPEAKERS, MAKE
	OLD CABLE	NEW CABLE
				DOUBLE
	Wire	Insulation				6		7
				CONNECTIONS TO
						RED
	Copper	Blue		ONLY TERMINALS
						SILVER
	Center	Grey		1, 2, 6, 7.		CENTER
	Silver	Red Stripe
						BLUE
Connecting the Remote
						COPPER
									FIGURE 3
Speaker Wiring
NOTE: All speaker and door wiring must return directly to
Master unit. Do not connect wiring from speaker to speaker.					TERMINAL BOARD
1. Dress all speaker wiring through the oblong wire holes in the
			1		2	3	4	5	CN702
rough-in frame. All wiring connections are made to the
Master unit’s terminal board.				RED
2. Refer to Figure 6. When routing speaker wires through				SILVER
rough-in, run wires through the LEFT-HANDside of the				CENTER
upper and/or lower wiring channels.
									CN701
3. Refer to Figures 3, 4 & 5. Connect the three-conductor wire				BLUE
				COPPER
(IWA-3) from each speaker to a set of terminal screws.
Connect speaker wiring as follows:
RED STRIPE wire to terminal screw marked RED SILVER.				CN704
GREY wire to terminal screw marked CENTER. BLUE wire			6		7	8	9		DOOR
to terminal screw marked BLUE COPPER.
				RED					SPKR
4. Refer to Figure 5. The system will accommodate up to 13				SILVER
speakers. If more than 9 speakers are connected, use only				CENTER					CN703
terminals 1, 2, 6 and 7 for double wiring connections.
When connecting two remotes to screw terminals 1, 2, 6 and 7.				BLUE
• Connect both red wires to the RED SILVER terminal screw.
				COPPER					EARTH

•Connect one remote’s GREY wire to a CENTER terminal screw, and connect the second remote’s center wire to the second CENTER terminal screw.

• Connect one remote’s BLUE wire to a BLUE COPPER			FIGURE 4
terminal screw, and connect the second remote’s BLUE
wire to the second BLUE COPPER terminal screw.
Repeat this procedure for each double remote	DOUBLE REMOTE CONNECTION		SINGLE REMOTE CONNECTION
connections. NOTE: Failure to make these double
	RED
connections properly will cause the unit to squeal.
		1
5. Refer to installation instructions packaged with remote	STRIPE
			RED
speakers or remote controls for wiring of the units.
			STRIPE

6.See “Wire Matching Chart” if you are retrofitting a system with the previously used Copper/ Center/

Silver wire.		RED
	RED
		SILVER
	SILVER

Connecting the Door
				CENTER	GREY		CENTER
Speaker Wiring	GREY
1. The door speaker connects to the Master
terminal board with two conductor (IW-2)			BLUE COPPER
						BLUE COPPER
22 gauge twisted pair wire.	BLUE				BLUE
2. Refer to Figure 4. Connect the two wires
from the door speaker(s) to the two terminal							FIGURE 5
screws marked DOOR SPKR on the Master
Terminal board.		3