Heatcraft Refrigeration Products H-IM-UC User Manual
Installation and
Operations Manual
H-IM-UC August 2008 Part No. 25008201
Replaces None. Information formerly included in H-IM-64L
Unit Coolers
Table of Contents
General Safety Information .................................................................. 2
Inspection ................................................................................................2
Warranty Statement ............................................................................... 2
Placement .............................................................................................3-4
Defrost Troubleshooting ....................................................................... 4
Condensate Drain Lines ........................................................................5
Field Wiring .............................................................................................. 5
H-IM-UC-0808 | Version 000
Check Out and Start Up ......................................................................... 5
Operational Check Out .......................................................................... 6
Evaporator Superheat ...........................................................................6
Expansion Valve Selection .................................................................... 7
Evaporator Troubleshooting ................................................................8
InterLink Replacement Parts ................................................................ 8
Installation and Operations Manual
General Safety Information
1. Installation and maintenance to be performed only
by qualied personnel who are familiar with this type
of equipment
2. Some units are pressurized with dry air or inert gas.
All units must be evacuated before charging the system
with refrigerant.
WARNING: Refrigerant can be harmful if it is inhaled. Refrigerant must be used and recovered responsibly.
Failure to follow this warning may result in personal injury or death.
Inspection
Responsibility should be assigned to a dependable individual at the
job site to receive material. Each shipment should be carefully checked
against the bill of lading. The shipping receipt should not be signed
until all items listed on the bill of lading have been accounted. Check
carefully for concealed damage. Any shortage or damages should
be reported to the delivering carrier. Damaged material becomes the
delivering carrier’s responsibility, and should not be returned to the
manufacturer unless prior approval is given to do so. When uncrating,
care should be taken to prevent damage. Heavy equipment should be
left on its shipping base until it has been moved to the nal location.
Check the serial tag information with invoice. Report any discrepancies
to your Heatcraft Refrigeration Products Sales Representative.
Warranty Statement
Seller warrants to its direct purchasers that products, including Service
Parts, manufactured by SELLER shall be of a merchantable quality, free
of defects in material or workmanship, under normal use and service
for a period of one (1) year from date of original installation, or
eighteen (18) months from date of shipmen
rst occurs. Any product covered by this order found to Seller’s
satisfaction to be defective upon examination at Seller’s factory will
at SELLER’s option, be repaired or replaced and returned to Buyer
via lowest common carrier, or SELLER may at its option grant Buyer
a credit for the purchase price of the defective article. Upon return
of a defective product to SELLER’s plant, freight prepaid, by Buyer,
correction of such defect by repair or replacement, and return freight
via lowest common carrier, shall constitute full performance by SELLER
of its obligations hereunder.
SELLER shall have no liability for expenses incurred for repairs made by
Buyer except by prior, written authorization. Every claim on account
of breach of warranty shall be made to SELLER in writing within the
warranty period specied above – otherwise such claim shall be
deemed waived. Seller shall have no warranty obligation whatsoever
if its products have been subjected to alteration, misuse, negligence,
free chemicals in system, corrosive atmosphere, accident, or if
operation is contrary to SELLER’s or manufacturer’s recommendations,
or if the serial number has been altered, defaced, or removed.
Seller makes no express warranties except as noted above. All implied
warranties are limited to the duration of the Express Warranty. Liability
for incidental and consequential damages is excluded.
The forgoing is in lieu of all other warranties, express or implied,
notwithstanding the provisions of the uniform commercial code, the
Magnuson-Moss Warranty - Federal Trade Commission Improvement
Act, or any other statutory or common law, federal or state.
t by SELLER, whichever
3. Make sure that all eld wiring conforms to the requirements
of the equipment and all applicable national and local codes.
4. Avoid contact with sharp edges and coil surfaces.
They are a potential injury hazard.
5. Make sure all power sources are disconnected before any
service work is done on units.
SELLER makes no warranty, express or implied, of tness for any
particular purpose, or of any nature whatsoever, with respect
to products manufactures or sold by seller hereunder, except as
specically set forth above and on the face hereof. It is expressly
understood and agreed that SELLER shall not be liable to buyer,
or any customer of buyer, for direct or indirect, special, incidental,
consequential or penal damages, or for any expenses incurred by
reason of the use or misuse by buyer or third parties of said products.
To the extent said products may be considered "consumer products,"
As dened in Sec. 101 of the Magnuson-Moss Warranty - Federal
Trade Commission Improvement Act, SELLER makes no warranty of
any kind, express or implied, to "consumers," except as specically set
forth above and on the face hereof.
The following conditions should be adhered to when installing
this unit to maintain the manufacturers warranty:
(a) System piping must be in accordance with good
refrigeration practices.
(b) Inert gas must be charged into the piping during
brazing.
(c) The power supply to the unit must meet the
following conditions:
A. Three phase voltages must be +/ 10% of nameplate ratings. Single
phase must be within +10% or
-5% of nameplate ratings.
B. Phase imbalance cannot exceed 2%.
(d) All control and safety switch circuits must be
properly connected according to the wiring diagram.
(e) The factory installed wiring and piping must not be
changed without written factory approval.
(f) All equipment is installed in accordance with
Heatcraft Refrigeration Products specied minimum
clearances.
© 2008 Heatcraft Refrigeration Products LLC
2
Unit Coolers
Recommended Unit Cooler Placement
Some general rules for evaporator placement which must be
followed are:
1. The air pattern must cover the entire room.
2.
NEVER locate evaporators over doors.
3. Location of aisles, racks, etc. must be known.
4. Location relative to compressors for minimum pipe runs.
5. Location of condensate drains for minimum run.
Minimum Unit Clearances
Figure 1. Medium Prole and Large Unit Coolers
NOTE:
W = Total width
of evaporator
coil surface.
The size and shape of the storage will generally determine the
type and number of evaporators to be used and their location.
The following are some typical examples:
NOTE: Leave space equal to unit height between bottom of unit
and product. Do not stack product in front of fans.
One evaporator
Figure 2. Low Prole Unit Coolers
One evaporator
Figure 3. Center Mount Unit Coolers
Two evaporators
NOTE:
H = Total height
of evaporator
coil surface.
Two evaporators
Recommended Maximum - Minimum Dimensions for
Center Mount Unit Cooler Installations.
E S M T
Max. Min. Max. Min. Max. Min. Max. Min.
25' 2' 20' 3' 40' 3' 40' 6'
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