55
APPLICATION DATA — 566D150-240, 566E150-240 (cont)
REFRIGERANT PIPING SIZES
LEGEND
Close-coupled.
*Requires a double suction riser if 2 unloaders are used and the evaporator is
below the condensing unit. See Refrigerant Piping Sizes — Double Suction Ris-
ers table and Suction Line Piping figure below for more information.
NOTES:
1. Pipe sizes are based on a 2° F loss for liquid lines and a 1.5° F loss for suc-
tion lines.
2. Pipe sizes are based on an equivalent length equal to the maximum length
of interconnecting piping plus 50% for fittings. A more accurate estimate
may result in smaller sizes.
REFRIGERANT PIPING SIZES —
DOUBLE SUCTION RISERS
NOTES:
1. See Suction Line Piping figure below for “A,” “B,” and “C” dimensions.
2. No double suction risers are needed for unit size 240.
UNIT
566D
LINEAR LENGTH OF INTERCONNECTING PIPING (FT)
0-15 16-25 26-50 51-75 76-100
Line Size (in. OD)
LSLSLSL S L S
150 1/211/81/213/85/813/85/815/8*7/815/8*
180 1/213/85/813/85/815/87/815/87/821/8*
240 5/815/85/815/87/815/87/821/87/821/8
UNIT
566E
LINEAR LENGTH OF INTERCONNECTING PIPING (FT)
0-25 25-50 50-75 75-100
Line Size (in. OD)
LSLSLSLS
150 1/211/81/211/81/211/81/211/8
180 1/213/81/213/81/213/85/813/8
240 1/213/81/213/85/813/85/813/8
L—Liquid
S—Suction
UNIT
566D
LINEAR LENGTH OF INTERCONNECTING PIPING (FT)
51-75 76-100
Line Size (in. OD)
ABCABC
150 11/813/815/811/813/815/8
180 ———1
3/815/821/8
Location ofOne Liquid Line Solenoid
Valve Serving 2 Coil Circuits
(Solenoid Drop Control)
TXV—Thermostatic
Expansion Valve
TXV—Thermostatic
Expansion Valve
Face-Split Coil Suction and
Liquid Line Piping
LEGEND
Suction Riser
Without
Trap
Suction Riser
With
Trap
Suction Line to Condensing Unit
Short Vertical Riser Into Condensing Unit:
566D150,180 — 13/8in. OD
A
B
C
D
Suction Line Piping
50TFQ004-012