Repairing Aluminum Coils - Hussmann EXCEL PW Installation & Service Manual

Medium temperature. bulk produce and bakery merchandisers
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6-4
S
S
6-4
eRvice
ERVICE
REPAIRING ALUMINUM COIL
The aluminum coils used in Hussmann mer-
chandisers may be easily repaired in the field.
Materials are available from local refrigeration
wholesalers.
Hussmann recommends the following solders
and technique:
Solders
Aladdin Welding Products Inc.
P.O. Box 7188
1300 Burton St.
Grand Rapids, MI 49507
Phone: 1-800-645-3413
Fax:
X-Ergon
1570 E. Northgate
P.O. Box 2102
Irving, TX 75062
Phone: 1-800-527-9916
NOTE:
Hussmann Aluminum melts at
Aladdin 3-in-1 rod at
X-Ergon Acid core at
P/N 0518258_C
P/N 0518258_D
1-800-645-3414
1125°F (607°C)
732°F (389°C)
455°F (235°C)
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
Technique:
1. Locate Leak.
2. REMOVE ALL PRESSURE.
3. Brush area UNDER HEAT.
4. Use PRESTOLITE TORCH ONLY.
Number 6 tip.
5. Maintain separate set of stainless steel
brushes and USE ONLY ON ALU-
MINUM.
6. Tin surface around area.
7. Brush tinned surface UNDER HEAT,
thoroughly filling the open pores around
leak.
8. Repair leak. Let aluminum melt solder,
NOT the torch.
9. Don't repair for looks. Go for thickness.
10. Perform a leak check.
11. Wash with water.
12. Cover with a good flexible sealant.

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