G&D GD-20H, Manual & User Manual

Page 1: ...1 800 555 0973 INFO GDCHILLERS COM GDCHILLERS COM INSTALLATION VIDEOS CHILLER INSTALLATION GUIDE USERMANUAL GD 20H GD 27H CHILLERS...

Page 2: ...I 2 GD 20H GD 27H CHILLER MANUAL 2021 G D CHILLERS INC ALL RIGHTS RESERVED...

Page 3: ...UPPORT 4 INSTALLATION VIDEO LINKS 4 PACKAGE CHILLER DESCRIPTION 5 INSTALLATION REQUIREMENTS 6 PIPING RECOMMENDATIONS 7 CONTROLLER AND NAVIGATION 9 C PCO CAREL MINI ALARMS 10 START UP INSTRUCTIONS 12 W...

Page 4: ...ffice at 1 800 555 0973 The voicemail recording will provide contact information for the emergency on call service technician INSTALLATION VIDEO LINKS Visit the following pages for installation video...

Page 5: ...g of discharge pressure Over pressure design allows circuiting back to tank without damage to system or pump Copper and bronze construction REFRIGERANT PIPING Type L ACR copper Liquid line filter drie...

Page 6: ...re Size wire and according to any all applicable local and national codes Refer to chart to the right for proper torque values Refer to spec sticker on control panel for all electrical ratings 2 Field...

Page 7: ...r stainless steel piping x x Loosen packing x d rn handwheel x D x Retighten packing nut once pressure is set EKd Do not open supply ball valve until gauge shows pressure within tank jacket rating If...

Page 8: ...5 8 1 25 7 0 6 W E 675 1 5 9 9 758 81 21 9 9 758 81 21 9 9 6833 5 7851 7 6 3 3 5 8 5 758 81 21 9 9 6 39 3 3 7521 78 7 9 9 9 9 6833 5 7851 5 9 9 9 880 5 5 7 6 7 6...

Page 9: ...see SET in the display screen a Press DOWN until you see pump pressure set point b Press ENTER button to navigate to numerical readout and adjust with UP and DOWN to set pump pressure Please note tha...

Page 10: ...velope High discharge pressure M Stop circuit 1 Parameter Cb17 AL108 Circuit 1 Envelope High suction pressure A Stop circuit 1 Parameter Cb17 AL109 Circuit 1 Envelope Low compression ratio A Stop circ...

Page 11: ...l pressure A Stop circuit 2 Parameter Cb18 AL211 Circuit 2 Envelope Low discharge pressure A Stop circuit 2 Parameter Cb17 AL212 Circuit 2 Envelope Low suction pressure A Stop circuit 2 Parameter Cb17...

Page 12: ...35 propylene glycol Temporarily close the supply valve Confirm glycol pressure shows 20 PSI using both the Carel controller and the manual pressure gauge located on the process pump discharge line 6...

Page 13: ...HASE VOLTAGE VOLTAGE TO GROUND Note High Leg to L2 L1 L2 L3 PUMP ROTATION GLYCOL PRESSURE COMPRESSOR A COMPRESSOR B COMPRESSOR C COMPRESSOR D CRANK CASE HEATER ENGERGIZED 4 HOURS COMPRESSOR OIL LEVEL...

Page 14: ...tion or maintenance of your chiller 800 555 0973 Refer to the separate G D Chillers Preventive Maintenance Checklist for a complete list of maintenance tasks Contract a licensed refrigeration technici...

Page 15: ...ged filter drier Replace filter drier Insufficient subcooling Check condenser subcooling circuit 4 Suction pressure too high Glycol temperature will not reach set point Excessive load on the system Ch...

Page 16: ...oil level or phase reversal Check oil level Restart 3 ph compressor by switching 2 phases replace if it does not restart 9 Compressor starts but start relay does not drop out High running current over...

Page 17: ...ck and widen differential high pressure switch See item 2 See item 2 low pressure switch See items 3 and 5 See items 3 and 5 Leaking liquid line solenoid valve LLSV Replace LLSV Leaking compressor val...

Page 18: ...D U N C N F N G A B Y N E G A M E A B Z D N B C C D S C U N C C S D N G N Y D S F D M N X N H E G M E Z E A N O C C S D N G N Y D S F D D U A E G E D D N U E N M E Y M N X D U N C N F N G A B Y N V N...

Page 19: ...grade to the original product will be covered only for the duration of the original warranty period EXCLUSIONS This warranty does not cover for example abuse accident acts of God consumable parts such...

Page 20: ...WARRANTY TO THE EXTENT PERMITTED BY APPLICABLE LAW G D CHILLERS INC DOES NOT WARRANT THAT THE OPERATION OF ANY PRODUCTS COVERED UNDER THIS LIMITED WARRANTY WILL MEET YOUR REQUIREMENTS OR THIRD PARTY...

Page 21: ...TALLATION GUIDE USER MANUAL SINGLE DUAL STAGE MODELS 21 G D Chillers welcomes any and all questions or concerns We can be reached at 800 555 0973 or 541 345 3903 G D CHILLERS INC GD 20 27H MS_CRL r202...