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Page 2 of 12 

Effective Date: 6 May 2022 

Revision: 02 

 
Table of Contents 
 

I. Installation 
 

Clearances ...................................................................................................... 3 

 

Mounting ........................................................................................................ 3 

 

Piping ............................................................................................................. 3 

 

Electrical Power .............................................................................................. 3 

 

Filling the Unit ................................................................................................ 3 

 
II. Startup 
 

Phase Monitor (CGS only) ................................................................................ 4 

 

ON/OFF Switch ............................................................................................... 5 

 

Pump Priming (CGS only) ................................................................................ 6 

 
III. Controller Display 
 

Main Display ................................................................................................... 7 

 

Status Modes .................................................................................................. 7 

 

Adjusting Temperature Set Point (CGS only) ..................................................... 8 

 

Mode Selection ............................................................................................... 8 

 

Adjusting Alarm Set Points ............................................................................... 9 

 

Units of Measure ........................................................................................... 10 

 

Faults ........................................................................................................... 11 

 

 

 

Summary of Contents for CGS

Page 1: ...Page 1 of 12 Effective Date 6 May 2022 Revision 02 MODEL CWS CGS ...

Page 2: ...nting 3 Piping 3 Electrical Power 3 Filling the Unit 3 II Startup Phase Monitor CGS only 4 ON OFF Switch 5 Pump Priming CGS only 6 III Controller Display Main Display 7 Status Modes 7 Adjusting Temperature Set Point CGS only 8 Mode Selection 8 Adjusting Alarm Set Points 9 Units of Measure 10 Faults 11 ...

Page 3: ...prevent any risk of tipping over Leveling legs are provided with the CGS Adjust as necessary Piping Comply with local codes for proper piping Use copper piping or reinforced EPDM hose and use non ferrous materials Insulate piping to minimize condensation Ensure piping is clean and free of flux at solder joints Connect piping to the unit according to the labels on the connections Electrical Power C...

Page 4: ...t Figure 1 If the phase monitor has a solid or flashing red LED contact a licensed electrician to correct the fault Figure 2 Reversal is caused by the 3 lines being in an improper sequence To correct a reversal switch any 2 of the 3 line connections Make this switch at the disconnect not in the unit Loss unbalance is caused by a percentage difference in voltage between the 3 lines relative to each...

Page 5: ...h Location A rotary ON OFF switch is located on the front or side of the unit Figure 3 Operation Rotate the switch to turn the unit ON or OFF If a fault occurs turning the switch to OFF and then back ON will reset the fault Figure 3 ON OFF switch vertical position ...

Page 6: ...t switches to city water backup the pump will run If the controller display shows the pump generating pressure then the pump is primed If the controller display shows a low pressure 10 psi then the pump did not automatically prime Follow the procedure below 1 Identify the priming plug on the face of the pump head Figure 4 2 Use a wrench or hex wrench to loosen the priming plug slightly The plug sh...

Page 7: ... will not switch over to city water backup Auto AUTO mode is selected on the Mode Selection screen In this mode the unit will automatically switch over to city water backup when the supply temperature rises to the high temperature alarm set point or when the flow rate falls to the low flow alarm set point or below the activation threshold of the flow switch FAILOVER The unit has automatically swit...

Page 8: ...hange the setting follow the procedure below 1 Press to move the blinking cursor to the value 2 Press or to adjust the value 3 Press to move the blinking cursor to the top left corner Mode Selection 1 From the main screen press to access the mode selection screen figure 6 2 Press to move the blinking cursor to Mode 3 Press or to change the mode Figure 6 Mode selection ...

Page 9: ...ered On units with a flow transducer the low flow alarm set point is the threshold at which switchover to city water backup is triggered 1 Press on the controller 2 Press or to highlight Setpoints 3 Press to go into that menu section 4 To change an alarm set point value press to move the blinking cursor to the value 5 Press or to adjust the value 6 Press to move the blinking cursor to the top left...

Page 10: ... USA F psi GPM SI C bar LPM To change the units of measure follow procedure below 1 Begin on the main display 2 Press on the controller 3 Press or to highlight Settings 4 Press to go into that menu section 5 Press or until you see Unit of Measure Zone Figure 7 Units of measure screen 6 Press to move the blinking cursor around the screen 7 Press or to select different units of measure 8 Press sever...

Page 11: ...ple faults occur before the faults have been cleared you will see of in the top right hand corner At the bottom you will see a time and date stamp HH MM DD MM YY Fault reset Press until you go past the last active fault you will see this screen which explains how to reset faults Figure 9 Fault history When the screen says NO ALARMS there are no faults currently Press to see the fault history if ne...

Page 12: ...aults Wording Notes Incoming electrical power error Phase Alarm Check the phase monitor in the electrical box see the LED status light and error codes High Temp Alarm Supply fluid temperature is above the alarm set point Fluid Flow Alarm Fluid flow rate is below the alarm set point or below the flow switch activation threshold Log higher number is more recent Description Time and date stamp Figure...

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