heatcraft-refrigeration-p h-im-fl1a User Manual

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.

* “W” = Total width of the condensing unit or condenser.

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.

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”.

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.

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.