1-12
5SLY40/50FR
More than 100 More than 500
More
than 100
More
than
100
More than 100
More than 100
More than 500
• Allow more space for installation above with additional obstacle at top side and installation in series.
Top View
Side View
Unit: mm
REFRIGERANT PIPING
Indoor 5CKY20E/ER 5CKY25E/ER 5CKY28ER
Outdoor 5SLY20C/CR 5SLY25C/CR 5SLY28CR
Max. allowable length, m 30 30 50
Max. allowable elevation, m 10 10 30
Liquid pipe size, mm/(in) 6.35 (1/4") 6.35 (1/4") 9.52 (3/8")
Gas pipe size, mm/(in) 12.70 (1/2") 15.88 (5/8") 15.88 (5/8")
Additional charge of refrigerant, g/m
(for piping length above 7.5m)
20 20 50
Indoor 5CKY40ER 5CKY50ER
Outdoor 5SLY40FR 5SLY50FR
Max. allowable length, m 75 75
Max. allowable elevation, m 30 30
Liquid pipe size, mm/(in) 9.52 (3/8") 9.52 (3/8")
Gas pipe size, mm/(in) 15.88 (5/8") 15.88 (5/8")
Additional charge of refrigerant, g/m
(for piping length above 30m)
50 50
Allowable Piping Length
When the pipe length becomes too long, both the capacity and reliability drop. As a result, compressor reliability will be
affected. Always choose the shortest path and follow the recommendation as tabulated below:
Wall facing one side
Wall facing more than 1 side of obstacle
1 EN 5CKYER-1009(1).indd 121 EN 5CKYER-1009(1).indd 12 4/21/11 9:11:20 AM4/21/11 9:11:20 AM
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