Service manual

53
Section 7 Refrigeration System
REFRIGERANT RE-USE POLICY
Manitowoc recognizes and supports the need for
proper handling, re-use, and disposal of, CFC and
HCFC refrigerants. Manitowoc service procedures
require recapturing refrigerants, not venting them to
the atmosphere.
It is not necessary, in or out of warranty, to reduce
or compromise the quality and reliability of your
customers’ products to achieve this.
Important
Manitowoc Ice, Inc. assumes no responsibility for
use of contaminated refrigerant. Damage
resulting from the use of contaminated,
recovered, or recycled refrigerant is the sole
responsibility of the servicing company.
Manitowoc approves the use of:
1. New Refrigerant
• Must be of original nameplate type.
2. Reclaimed Refrigerant
• Must be of original nameplate type.
• Must meet ARI Standard 700 (latest edition)
specifications.
3. Recovered or Recycled Refrigerant
• Must be recovered or recycled in accordance
with current local, state and federal laws.
• Must be recovered from and re-used in the
same Manitowoc product. Re-use of
recovered or recycled refrigerant from other
products is not approved.
• Recycling equipment must be certified to
ARI Standard 740 (latest edition) and be
maintained to consistently meet this
standard.
• Recovered refrigerant must come from a
“contaminant-free” system. To decide
whether the system is contaminant free,
consider:
• Type(s) of previous failure(s)
• Whether the system was cleaned,
evacuated and recharged properly
following failure(s)
• Whether the system has been
contaminated by this failure
• Compressor motor burnouts and
improper past service prevent refrigerant
re-use.
• Refer to “System Contamination
Cleanup” to test for contamination.
4. “Substitute” or “Alternative” Refrigerant
• Must use only Manitowoc-approved
alternative refrigerants.
• Must follow Manitowoc-published
conversion procedures.