Dunham-Bush ACXi 165-5SP-LN, Инструкция по установке, эксплуатации и обслуживанию

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2.0 INSTALLATION
2.1 GENERAL
Packaged chillers are designed to cool water or
other non-corrosive liquids. Water is circulated
through the direct expansion evaporator where it
is cooled to the desired temperature then
circulated to cooling coils for air conditioning, or
to other types of heat exchangers for process
cooling.
Care should be taken to see that the equipment is
properly installed and adjusted. An installer or
operator should first become familiar with the
information contained in this manual.
2.1.1 APPLICATION PRECAUTIONS
The following instructions are intended to
help assure proper and successful
application of your
water chilling
machine.
2.1.2 CHILLED WATER FLOW
The Dunham-Bush ACXi Packaged
Water Chiller is designed for a constant
chilled water flow rate, even when the
cooling load is varying. The machine will
generally perform satisfactorily with
steady flow rates deviating from design
by as much as ±10%. However, varying
water flow rates can cause control
instability which will result in undesirable
system effects, particularly poor control
of leaving chilled water temperature. If
two-way valves are used to control flow
through cooling coils, some means such
as an automatic modulating valve should
be provided in the system to maintain
steady flow through the evaporator.
If the chilled water system is arranged for
the dual purpose of cooling and heating,
the evaporator must incorporate valves to
prevent the flow of hot water through it.
This can be done with either manual or
automatic shutoff valves, but the method
of control must be that water temperature
entering the evaporator never exceeds
90°F.
2.2 INSPECTION
When the equipment is delivered, it is important
that the following inspection be completed in the
presence of the carrier's representative.
1.) Check all crates and cartons received against
the Bill of Lading/Shipping Papers to be sure
they agree.
2.) Check the model number and the electrical
characteristics on the nameplate to determine
if they are correct.
3.) Check for freight damage, shortages or other
discrepancies and note them on the delivery
receipt before signing.
In the event that any damage is found, a damage
claim should immediately be filed by the
purchaser against the delivering carrier as all
shipments are F.O.B. Factory.
2.3 RIGGING
2.3.1 GENERAL
Each unit has been carefully tested and
crafted at the factory where every
precaution is taken to assure that the unit
reaches you in perfect condition. It is very
important that the riggers and movers
should use the same care and precaution
in moving the equipment into place. Make
sure that chains, cables. or other moving
equipment are placed so as to avoid
damage to the unit or piping. The
refrigerant piping must not be used as a
ladder or as a hand hold. Do not attach a
chain hoist sling to the piping or
equipment. Move the unit in an upright
position and let it down gently from
trucks or rollers.
2.3.2 RIGGING AND MOVING
Any unit mounted on skids may be moved
with a forklift, but care must be taken not
to damage the unit with forks. The skids
should not be removed until the unit is at
its final location.
The ACXI model is to be rigged through
the holes in the base side rails. In all
cases, spreader bars must be used between
rigging lines to prevent coil or fan deck
damage. The unit must be lifted using
All
Rigging Points.
Refer to Rigging
Instructions on Figure 2.3.2.
All models can be pushed or pulled (with
chains) from the 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.
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