Heatcraft Refrigeration Products H-IM-CU Space and Location Requirements for, Decorative Fences

Space and Location Requirements for

Air Cooled Condensing Units and Remote Condensers

The most important consideration which must be taken into account when deciding upon the location of air-cooled equipment is the provision for a supply of ambient air to the condenser, and removal of heated air from the condensing unit or remote condenser area. Where this essential requirement is not adhered to, it will result in higher head pressures, which cause poor operation and potential failure of equipment. Units must not be located

in the vicinity of steam, hot air or fume exhausts. Corrosive atmospheres require custom designed condensers.

Another consideration which must be taken is that the unit should be mounted away from noise sensitive spaces and must have adequate support to avoid vibration and noise transmission into the building. Units should be mounted over corridors, utility areas, rest rooms and other auxiliary areas where high levels of sound are not an important factor. Sound and structural consultants should be retained for recommendations.

Figure 1. Space and Location Requirements for Condensing Units

Walls or Obstructions

The unit should be located so that air may circulate freely and not be recirculated. For proper air flow and access all sides of the unit should be a minimum of “W” away from any wall or obstruction. It is preferred that this distance be increased whenever possible. Care should be taken to see that ample room is left for maintenance work through access doors and panels. Overhead obstructions are not permitted. When the unit is in an area where it is enclosed by three walls the unit must be installed as indicated for units in a pit.

Multiple Units

For units placed side by side, the minimum distance between units is the width of the largest unit. If units are placed end to end, the minimum distance between units is 4 feet.

Multiple Units with Horizontal Air Flow

Clearance for multiple units placed side by side

AIR FLOW AIR FLOW

Walls or Obstructions for Horizontal Air Flow
Clearance from walls or obstructions	W
AIR FLOW	AIR FLOW
W	W
	MIN.
	W
AIR FLOW	AIR
	FLOW

W	W
MIN.
	AIR FLOW

W

MIN.W

AIR FLOW

Units in Pits

The top of the unit should be level with the top of the pit, and side distance increased to “2W”.

If the top of the unit is not level with the top of pit, discharge cones or stacks must be used to raise discharge air to the top of the pit. This is a minimum requirement.

	Clearance for units in pits
		STACK
	AIR FLOW	(SUPPLIED BY OTHERS)
	10 FT. MAX.
2W	W	2W
MIN.		MIN.

WW

Decorative Fences

Fences must have 50% free area, with 1 foot undercut, a “W” minimum clearance, and must not exceed the top of unit. If these requirements are not met, unit must be installed as indicated for “Units in pits”.

	Clearance for fence enclosures
	AIR FLOW
W	W	W
MIN.		MIN.
		1 FT. MIN.
	AIR FLOW

NOT RECOMMENDED

W	W	W	W	W
AIR FLOW	AIR FLOW	AIR FLOW	AIR FLOW	AIR FLOW
	* “W” = Total width of the condensing unit