Multi-DENCO Medium Connections
FläktGroup DC-2013-0101-GB • Subject to modifications • R5-08/2020 65
If using expansion loops or offsets, the following minimum dimensions must be
observed:
Fig. 6-3
6.2.6 Insulation
For insulating pipework:
– All insulation (e.g. Armaflex or equivalent) shall be class O minimum 3/8" wall thick-
ness
– All joints and edge splits must be glued or taped on suction lines
– Vapour sealing is not required on hot gas lines
– Any painting of insulation installed outdoors must be completed in line with manu-
facturer's guidelines
Each site must be individually assessed depending on pipework exposure, position,
length and accessibility to pipework, but for Multi-DENCO units:
A-Version: Liquid lines do not need to be insulated, but may be required due to site conditions and
accessibility to pipework. We recommend insulating the liquid line in the raised floor to
avoid heating the cold air.
X-Version: Both lines (suction and expansion) MUST be insulated.
W-Version and P-Version: Discharge line must be insulated.
Tube Outer
Diameter
Size of expansion movement [mm]:
10 20 30 50 70 100
Length (L) of required loop or offset [mm]:
1/2" or 12 mm 200 275 350 425 500 550
5/8" or 16 mm 200 300 375 450 550 650
3/4" or 18 mm 225 325 400 500 600 700
7/8" or 22 mm 225 350 425 550 650 750
1 1/8" or 28 mm 250 375 450 600 700 850
1 3/8" or 35 mm 250 400 475 650 800 900
1 5/8" or 42 mm 275 425 500 700 850 1000
54 mm 300 450 525 750 900 1050
2 1/8" or 67 mm 325 475 550 800 950 1100
Tab. 6-5
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