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Section 1 - General Information
INTRODUCTION
Three generations of pride and quality manufacturing and
design improvements are built into all U-Line products. The
result: U-Line leads the market with innovative technology and
superior craftsmanship.
This manual contains specific instructions for servicing the U-
Line Products which include these models:
MODELS
SP18
ULN-95 Icemaker
ULN-98 Icemaker
SS-1095 Icemaker
U-CO29F
U-CO29A
ULN-29R
U-1075BEV
U-1075WC
U-CO1175
BI-2115
ADA15IM
POTENTIAL PROBLEMS WITH
HFC-134A
This service manual has been written to cover products
manufactured with HFC-134A. HFC-134A compressors
receive a synthetic based ester oil charge. The hygroscopic
(water attraction) property of ester oil is many times greater
than the mineral oils previously used with CFC-12. High
system moisture causes the formation of acids and alcohol
which can damage the compressor. Systems should not be left
open for more than fifteen (15) minutes at any time as
humidity from the air will enter the system. To ensure system
dehydration, the system should be pulled down to 100
microns and vacuum pump oil (mineral oil) must not be
allowed to enter the system.
Cleanliness of the system is extremely important. The
presence of residues (chlorinated or greasy residues, mineral
oil, or impurities) can lead to capillary tube restrictions, oil
return problems and compressor damage. Do not use flux on
brazed joints.
IMPORTANT
IMPORTANT
Check for the latest service related information at U-
LineService.com. The Technical Knowledge base is
continuously updated and can be accessed anytime. Each U-
Line product has a unique method of installation, but it is
consistent with U-Line’s methods and requirement. Follow
the installation guidelines for the U-Line product you are
installing.