Xantech PA640 installation instructions Installation Physical Location and Mounting

INSTALLATION

PHYSICAL LOCATION AND MOUNTING

When you mount the PA640, you need to plan its location carefully. Pay close attention to each of the following factors:

1.The amplifier is convection cooled. That is, it depends on the natural free flow of air over the heat dissipating fins for ad-

equate cooling.

2.If mounted in an equip- ment cabinet or other con- fining location, allow at least 3 inches of space above the heat sink fins (see Fig. 4). Be sure there are large openings to al- low the entry of cool air and the escape of warm air.

Shelf, wall, etc.

Heat Dissipation

PA640Fins

3-inch spacing (minimum)

Aluminum mounting panel (preferred)

3.	If the	cabinet contains
	other	heat generating
	components, or you are		Fig. 4 Horizontal Mounting
	using several PA640's in
	a large multi-zone system,
	you will have to pay even closer attention to adequate ventilation.			PA640
4.	Do not hesitate to use fans, if necessary, to ensure a constant flow
	of air over the PA640's and the other heat generating compo-
	nents.			FINS
5.	The PA640 will operate when mounted either horizontally or
	vertically. The vertical placement is preferred, however, since it
	will run approximately 5% to 10% cooler when so oriented. See
	Fig. 5.

6.In multi-zone installations, you will have large bundles of leads to accommodate audio, video and speaker connections. Be sure to allow enough room for the leads and dress them so that they do not block airflow.

7.Mounting the PA640 onto an aluminium panel (rather than on wood or other non-heat conducting material) will add additional heat dissipation capability. See Fig. 4 & 5.

8.Use the 4 holes on the chassis skirts and the screws provided to mount the PA640.

			Aluminum mounting
			panel (preferred)
		Fig. 5	Vertical mounting (preferred)
	
				5
PA640

Amplifiers & Preamplifiers