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Manual 2100-518B
Page 2 of 30
CONTENTS
Getting Other Informations and Publications .........3
General Information
Flow Center Nomenclature .......................................4
Application
Description ................................................................ 4
Safety .................................................................4
Danger .................................................................4
Warning .................................................................4
Caution .................................................................4
Notice .................................................................4
Flow Center Mounting Instructions
Notice .................................................................7
Stud Wall .................................................................7
Concrete/Masonry Wall .............................................7
Side of Unit ...............................................................7
Piping Installation
Description .............................................................. 10
Actual Photo Images ..........................................10-11
Multiple Unit to Single Loop Connection
Description .............................................................. 12
Flow Center Wiring
Description .............................................................. 16
Flushing & Charging
General ...............................................................18
Procedures for Adding Antifreeze ...........................18
Flushing & Filling Earth Loop & Units .....................22
Flushing Earth Loop Only .......................................22
Flushing Unit Only ...................................................23
Flow Center Initial Startup
General ...............................................................24
Procedures for Pressurizing the System .................24
Pressure/Temperature Plugs ..................................24
Troubleshooting
Troubleshooting Table .............................................27
Antifreeze Selection & Use
General ...............................................................28
Methanol ...............................................................28
Ethanol ...............................................................28
Propylene Glycol .....................................................29
Potassium Acetate (GS4) ........................................29
Antifreeze Verication ............................................. 30
Figures
Figure 1A Performance Model DORFC-1 .................5
Figure 1B Performance Model DORFC-2 .................5
Figure 2 Flow Center Dimensions .......................... 6
Figure 3 Pump Horizontal Applications ..................8
Figure 4A Mounting - Studded Wall ..........................9
Figure 4B Mounting - Masonry Wall ..........................9
Figure 5A Flow Center Connection to GV Series ...12
Figure 5B Flow Center Connection to GT Series ...13
Figure 5C Flow Center Connection to QW Series ..14
Figure 6 Multiple Unit Connection to Singular ...... 15
Figure 7 Electrical Connections ............................17
Figure 8 Connecting Flush Cart to Flow Center ... 19
Figure 9A Positioning - Flush Loop .........................20
Figure 9B Positioning - Flush Loop & Unit ..............20
Figure 9C Positioning - Flush Unit ..........................21
Figure 9D Positioning - Operation ...........................21
Figure 10 Pressure Temperature Ports ..................25
Figure 11 Density Verication - Solution Strength ....30
Tables
Table 1 Fusion or Barbed Fittings ....................... 10
Table 2 Electrical Ratings ...................................16
Table 3A GV Series Coil Pressure Drop ...............25
Table 3B GT Series Coil Pressure Drop ................26
Table 3C QW Series Coil Pressure Drop ..............26
Table Troubleshooting......................................27
Table 4 Fluid Volume ..........................................29
Table 5 Percentages by Volume .........................29
Table 6 Propylene Glycol Specic Gravity .......... 30
Table 7 Methanol Specic Gravity ......................30