Riello Array AR 4000 - Appendix D - Head Available for the System

43
SHUTDOWN
43
APPENDIX
APPENDIX D - HEAD AVAILABLE FOR THE SYSTEM
HEAD AVAILABLE (NO GLYCOL)
Array ∆T = 36°F ∆T = 45°F
AR 3000 9 ft 21 ft
AR 4000 9 ft 21 ft
HEAD AVAILABLE (50% MAXIMUM GLYCOL)
Array ∆T = 36°F ∆T = 45°F
AR 3000 7ft 16.5ft
AR 4000 7ft 16.5ft
Array
Model
Boiler
Quantity
Combined
Max GPM
Common
Pipe Size
(Inch)
Max
Equivalent
Length of
Pipe (ft)
AR 3000
1 150 4 150
2 300 6 300
3 450 6 150
4 600 8 330
AR 4000
1 200 6 180
2 400 8 180
3 600 10 265
4 800 10 160
Notes:
Max equivalent length of pipes must account for all pipes, valves,
ttings and a recommended strainer at boiler inlet.
Multiple boilers to be piped in reverse return layout.