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GENERAL

outdoor application and may be mounted on roof or at

Packaged chillers are designed to cool water or other non-

ground level.

corrosive liquids. Water is circulated through the direct
expansion cooler where it is cooled to the desired

Since these units are air cooled, the flow of air to and from

temperature then circulated to cooling coils for air

the condenser coil must not be impeded. There must be no

conditioning, or to other types of heat exchangers for

obstruction above the unit that would tend to deflect

process cooling.

discharge air downward where it could be recirculated back

Care should be taken to see that the equipment is properly

fan outlets.

installed and adjusted. An installer or operator should first
become familiar with the information contained in this

The unit must be installed with sufficient clearance for air

manual.

entrance to the condenser coil and for servicing access.

INSPECTION

wall or other obstruction. See Condenser Clearance

When the equipment is delivered, it is important that the

Drawing page 35. Clearance must be provided at either end

following inspection be completed in the presence of the

of the unit to permit removal of tubes from the chiller.

carrier's representative.

1. Check all crates and cartons received against the Bill of

fume exhausts.

Lading/Shipping Papers to be sure they agree.

2. Check the model number and the electrical

that the unit should be mounted away from noise sensitive

characteristics on the nameplate to determine if they are

spaces and must have adequate support to avoid vibration

correct.

and noise transmission into the building. Units should be

3. Check for freight damage, shortages or other

auxiliary areas where sound levels are not an important

discrepancies and note them on the delivery receipt

factor. Sound and structural consultants should be retained

before signing.

for recommendations on critical installations.

In the event that any damage is found, a damage claim

FOUNDATION

should immediately be filed by the purchaser against the
delivering carrier as all shipments are F.O.B. Factory.

Refer to index for unit dimensions and load points.

RIGGING

functioning of controls and provision must be made for

General - Each unit has been carefully tested and crafted at

dimensions. Roof mounted units must be supported on

the factory where every precaution is taken to assure that

adequate steel structure. If units are located on the ground

the unit reaches you in perfect condition. It is very important

level, a concrete base is recommended.

that the riggers and movers should use the same care and
precaution in moving the equipment into place. Make sure

VIBRATION ISOLATION

that chains, cables, or other moving equipment are placed
so as to avoid damage to the unit or piping. The refrigerant

Under certain critical conditions, it may be necessary to

piping must not be used as a ladder or as a hand hold. Do

install vibration isolators under the base of the Packaged

not attach a chain hoist sling to the piping or equipment.

Chiller.

Move the unit in an upright position and let it down gently
from trucks or rollers.

Rubber-in-shear or spring vibration isolators are offered as

Rigging and Moving - Any unit mounted on skids may be

connections must be installed in the water piping system

moved with a forklift, but care must be taken not to damage

and in the refrigerant lines of split systems. Note: These

the unit with forks. The skids should not be removed until

flexible connectors must be suitable for the fluid and

the unit is at its final location.

pressures involved.

The ACDX/AUDX 040-060 units are to be rigged thru the

All piping which is external to the packaged chiller must be

small holes at the bottom of each leg. On units with optional

supported by spring mounted hangers and any piping which

louvers, it will be necessary to remove labeled louver panels

goes through the wall, ceiling or floor should be properly

to gain access to the rigging holes. Models 080 thru 255 are

sheathed to prevent transmission of piping vibration to the

to be rigged thru the holes in the base side rails. In all

structure.

cases, spreader bars must be used between rigging lines to
prevent coil or fan deck damage. The unit must be lifted

When spring isolators are used, electrical service to the unit

using All Rigging Points. Refer to Rigging Instructions on

must also be flexibly connected, by means of a 36" section

page 36.

of flexible conduit.

All models can be pushed or pulled (with chains) from the

PIPING CONNECTIONS

control box end only. Truck forks must be kept level and not
tilted back. Do not raise the end of the unit more than 2" off
the floor.

LOCATION & MOUNTING
Model ACDX Air Cooled Packaged Water Chillers and
AUDX Air Cooled Condensing Units are designed for

to the inlet of the unit. Ductwork must not be applied to the

The unit should be located no closer than four feet from any

Units must not be located in the vicinity of steam, hot air or

Another consideration which must be taken into account is

mounted over corridors, utility areas, rest rooms or other

Foundations must be level for proper operation and

supporting the individual load points as shown in the unit

optional items. When spring isolators are used, flexible

Water Connections, Chilled Water Piping - After the unit
has been leveled, the external water piping may be made
up. Be sure water piping is connected to the correct fittings.
The water out connection is closest to the expansion valve
(R-in) end. A chilled water flow switch must be installed in
the external chilled water outlet piping.