M&S Systems DMC3-4 installation instructions Transformer 120VAC/60Hz run

Figure 2 - dmc1H or dmc1HC wall housing placement

dmc3-4

combination systems only – or those that include the dmc3-4 master and the optional dmc1CD 6-disc CD player.

Locate wall housing dmc1H or dmc1HC (combo). The housing must be positioned so that the transformers are on the bottom of the wall housing as shown in figure 1. If you are replacing the existing master only system with a combination dmc3-4 system you will have to cut

the rough-in opening larger to accommodate the larger wall housing. Prior to making the cutout check the stud cavity for obstructions or items in the wall that may prevent the transformers from fitting in the wall. The dmc1H and dmc1HC transformers drop in from the bottom of the housing. Refer to Figure 2 for wall housing placement.

The wall housing is designed to fit between 16" on center (OC) studs. In

retrofit applications you may encounter stud spacing that varies from this standard.

Connect the existing, dedicated 120VAC/60Hz line with ground connection from the power panel to the wall housing as shown in Figure 3. The dmc3-4 requires a dedicated power source to assure no interference from other equipment caused by looped power circuits. The ground is necessary for proper radio reception.

Figure 3 - Transformer 120VAC/60Hz run

Place transformer enclosure from the inside of the wall housing into the transformer enclosure opening at the bottom of the wall housing as shown in Figure 4. Do not run the 120VAC through the wall housing.

www.mssystems.com 800.421.1587

Page 10