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EarthLinked SCWD-024-1C Quick start instructions

Manual is about: Classic Series SCWD Geothermal Heating and Cooling System

Summary of SCWD-024-1C

  • Page 1

    Scwd-qs (12/16) ©2016 earthlinked technologies, inc. Classic series scwd geothermal heating and cooling system quick-start instructions.

  • Page 2: Table Of Contents

    Scwd-qs (12/16) page 2 table of contents list of figures..................................................................................................................................... 3 list of revisions .............................................................................................

  • Page 3: List of Figures

    Scwd-qs (12/16) page 3 list of figures figure 1. Matching component model numbers .................................................................................. 7 figure 2. General layout of system components .............................................................................. 8 figure...

  • Page 4: List of Revisions

    Scwd-qs (12/16) page 4 figure 33. Compressor motor circuit testing.................................................................................... 51 figure 34. Compressor motor grounded winding test ..................................................................... 52 figure 35. System troub...

  • Page 5: Model Nomenclature

    Scwd-qs (12/16) page 5 model nomenclature disclaimer proper installation and servicing of the earthlinked ® heat pump is essential to its reliable performance. All earthlinked ® systems must be installed and serviced by a technician trained and authorized by earthlinked technologies. Installation an...

  • Page 6: Safety

    Scwd-qs (12/16) page 6 safety warning, caution and important notices appear throughout the manual. Read these items carefully before attempting installation, servicing or troubleshooting the equipment. Equipment manuals the following is a listing of the equipment installation manuals that are provid...

  • Page 7: Installation

    Scwd-qs (12/16) page 7 installation 1) component matching upon receipt of the equipment, carefully check the component model numbers by referencing figure 1, to ensure that all components of the system match. Classic systems compressor unit 1 hybrid cooling module earth loop 2 -024 hcm-1860c -024-c ...

  • Page 8

    Scwd-qs (12/16) page 8 figure 2. General layout of system components 2) compressor unit placement earthlinked ® scwd compressor units may be located inside only. When placing it inside, place it on a level, hard surface. Avoid placing the compressor unit in or near sound sensitive areas of the resid...

  • Page 9

    Scwd-qs (12/16) page 9 figure 3. Compressor unit clearance placement instructions for other pieces of equipment that make up the earthlinked ® system are included with those pieces of equipment and are listed in this manual under equipment manuals. 3) refrigeration after the earthlinked ® compressor...

  • Page 10

    Scwd-qs (12/16) page 10 port function type of connection size, inches -024 -030 -036 -042 -048 -060 a 1 electrical, power 1- 1/4” hole --- --- --- --- --- --- b 1,2 electrical, control 7/8” hole --- --- --- --- --- --- 1 plugged ---- ---- ---- ---- ---- ---- ---- 2 plugged ---- ---- ---- ---- ---- -...

  • Page 11

    Scwd-qs (12/16) page 11 compressor units are shipped from the factory with a low pressure nitrogen holding charge. Carefully relieve the holding charge when the compressor unit is being prepared to connect refrigerant system piping. Caution! Refrigerant piping connections refrigerant joints are to b...

  • Page 12

    Scwd-qs (12/16) page 12 the compressor unit package contains a service valve kit and an adapter kit. The two service valves are to be installed on the earth loop vapor and liquid connections of the compressor unit, using the adapters to right-size to the proper earth loop line set. Installation of t...

  • Page 13

    Scwd-qs (12/16) page 13 4) system applications and electrical the scwd compressor unit electrical box major components and electric data for all compressor sizes are shown in figure 6. The surestart module is an optional factory installed component that (1) reduces compressor starting current, (2) r...

  • Page 14

    Scwd-qs (12/16) page 14 compressor unit model compressor model voltage/phase/ hz voltage lra rla mca mfs min. Max. -024-1c zp25k6e-pfv 230-1-60 207 253 72.5 15.0 18.0 30 -024-2c zp25k6e-tf5 230-3-60 207 253 61.4 9.8 12.0 20 -030-1c zp31k5e-pfv 230-1-60 207 253 78.0 18.6 23.0 35 -030-2c zp31k5e-tf5 2...

  • Page 15

    Scwd-qs (12/16) page 15 figure 7. Scwd compressor unit electrical schematic diagram, 230-1-60

  • Page 16

    Scwd-qs (12/16) page 16 figure 8. Scwd compressor unit electrical schematic diagram, 230-3-60

  • Page 17

    Scwd-qs (12/16) page 17 figure 9. Scwd hydronic heating/cooling/water heating sytem application.

  • Page 18

    Scwd-qs (12/16) page 18 figure 10. Scwd hydronic heating/cooling/water heating system field wiring diagram.

  • Page 19

    Scwd-qs (12/16) page 19 5) surestart features surestart is an optional factory installed soft starter that reduces light flicker caused at start-up by scroll compressor motors. This control has the following features: 60 to 70% reduction in direct in-rush current under voltage protection motor rever...

  • Page 20

    Scwd-qs (12/16) page 20 figure 11. Surestart mode of operation.

  • Page 21

    Scwd-qs (12/16) page 21 flash codes – single phase led flash codes a red led indicator will flash under the following conditions. [note: led fault indicator is turned off in normal running mode.] a) rapid flash (10 / sec) : low voltage b) triple flash every three seconds (3 / 3 secs): lockout on thr...

  • Page 22

    Scwd-qs (12/16) page 22 flash codes – three phase a red led indicator will flash under the following conditions. [note: led fault indicator is turned off in normal running mode.] a) reverse phase: (1 / 2 secs) b) fault mode/cycle delay: (1 / 4 secs) c) low voltage/over voltage: 2 / 2 secs) flash cod...

  • Page 23

    Scwd-qs (12/16) page 23 6) plumbing a typical primary hydronic plumbing circuit for an scwd system is illustrated in figure 12. Figure 12a. Typical scwd primary hydronic circuit plumbing.

  • Page 24

    Scwd-qs (12/16) page 24 the components are as follows: 1. Circulating pump: the recommended circulating pump can be purchased from earthlinked as part of the pump kit (pu-kit) composed of the pump, pump flange set and pump mounting brackets. Any field supplied pump must supply a design (minimum) wat...

  • Page 25

    Scwd-qs (12/16) page 25 7) antifreeze protection when scwd compressor units are applied to radiant panel hydronic heating and/or cooling systems, the water circulating system must be protected from potential damage due to freeze-up by utilizing an adequate antifreeze solution. The antifreeze protect...

  • Page 26

    Scwd-qs (12/16) page 26 the manufacturer’s specific instructions and industry standards always take precedence when introducing propylene-glycol to the system. Calculate the quantity of inhibited propylene-glycol (fluid) required to achieve the desired results. Introduce a sufficient quantity of wat...

  • Page 27

    Scwd-qs (12/16) page 27 8) internal heat recovery system the scwd compressor unit has a built-in heat recovery system which provides supplemental domestic water heating at a significant operating cost savings. The heat recovery system operates throughout the year to provide free hot water when opera...

  • Page 28

    Scwd-qs (12/16) page 28 figure 12c. Gste storage water heater —service connections figure 12d. Gste storage water heater —tank top view.

  • Page 29

    Scwd-qs (12/16) page 29 the scwd compressor unit internal heat recovery system contains a water high temperature control. It is factory set to 140°f. The heat recovery system also contains a refrigerant low temperature which is factory set at 130°f. Also, a freeze protection control is designed to o...

  • Page 30

    Scwd-qs (12/16) page 30 earth loop protection system 1) anode wire installation prior to this, the below grade installation of the direct axxess® earth loop system, including the earth loop protection system anode and anode wire has been completed per the earth loop protection kit manual , and at th...

  • Page 31

    Scwd-qs (12/16) page 31 figure 14. Disassembled plug connector.

  • Page 32

    Scwd-qs (12/16) page 32 strip the insulation from the multi-strand anode wire back approximately ¾ inch from the end and while keeping the strands together, push the anode wire through the gland nut, gland cage, gland and plug body as shown in figure 15. Loosen one of the two screw terminals on the ...

  • Page 33

    Scwd-qs (12/16) page 33 figure 16. Install the plug insert slide the gland forward on the anode wire until it is firmly seated in the plug body as shown in figure 17. Next, slide the gland cage over the gland, and slide the gland nut firmly against the gland cage, with the gland nut against the plug...

  • Page 34

    Scwd-qs (12/16) page 34 once the gland nut has been hand tightened into the plug body, use two adjustable wrenches to further tighten the gland nut until it is snug in the plug body as shown in figure 18 and the anode wire is held firmly in the plug body and will not slip out. Do not over-tighten th...

  • Page 35

    Scwd-qs (12/16) page 35 2) eps operation and service reference figure 20 for the eps components in the compressor unit electric box. Figure 20. Electric box with eps components with power on , and viewing the eps module in the compressor unit electric box, the eps green light should be illuminated, ...

  • Page 36

    Scwd-qs (12/16) page 36 3) voltage verification if it is necessary to verify the voltage output of the eps system, it can be checked with a digital dc voltmeter. The correct electrical voltage is listed in figure 21. State of system voltage output unloaded (anode or ground disconnected, alarm soundi...

  • Page 37: Start-Up Process

    Scwd-qs (12/16) page 37 start-up process 1) system leak check after all indoor and outdoor refrigerant bearing components of the system have been installed and joints have been nitrogen brazed, pressurize the system prior to evacuation to leak test the system. Do not exceed 150 psig when pressure te...

  • Page 38

    Scwd-qs (12/16) page 38 figure 23. Scwd internal flow schematic.

  • Page 39

    Scwd-qs (12/16) page 39 figure 24. Scwd piping.

  • Page 40

    Scwd-qs (12/16) page 40 2) evacuation refer to figure 25 and the following procedure: 1. Carefully vent any pressurized nitrogen charge from the compressor unit and system. 2. After venting the pressurized system, use a good quality gauge manifold and a non-permeable hose set as shown in figure 25. ...

  • Page 41

    Scwd-qs (12/16) page 41 figure 25. Evacuation of scwd system.

  • Page 42

    Scwd-qs (12/16) page 42 3) initial charge 1. Disconnect the vacuum pump and isolate the digital vacuum gauge. Connect the refrigerant container to the charging hose of the manifold gauge set as shown in figure 26. 2. Place the refrigerant container upside down (or oriented to deliver liquid refriger...

  • Page 43

    Scwd-qs (12/16) page 43 figure 26. Initial charge of scwd system.

  • Page 44

    Scwd-qs (12/16) page 44 4) final charge 1. Remove the schrader core tool from the hose just taken off of the initial charging port. 2. Crack open the lp valve on the manifold gauge set so that a small amount of refrigerant gas flows to purge the hose. Connect the hose to the final charging port, sho...

  • Page 45

    Scwd-qs (12/16) page 45 figure 27. Final charge of scwd system.

  • Page 46

    Scwd-qs (12/16) page 46 figure 28. Charging to the middle sight glass (heat only units) figure 29. Final charging to the top sight glass (heat/cool units).

  • Page 47

    Scwd-qs (12/16) page 47 temperature (°f) pressure (psig) -20 26.1 -15 30.8 -10 35.9 -5 41.5 0 47.5 5 54.1 10 61.2 15 68.8 20 77.1 25 86.0 30 95.5 35 105.7 40 116.6 45 128.3 50 140.8 55 154.1 60 168.2 65 183.2 70 199.2 75 216.1 80 234.0 85 253.0 90 273.0 95 294.1 100 316.4 105 339.9 110 364.6 115 390...

  • Page 48

    Scwd-qs (12/16) page 48 figure 31. Start-up process.

  • Page 49: Troubleshooting

    Scwd-qs (12/16) page 49 troubleshooting if you experience difficulties with the earthlinked ® system, please review the appropriate section of the manual. It may be helpful to have another professional hvac or eti approved refrigeration service person review and check it with you. Time and expense c...

  • Page 50

    Scwd-qs (12/16) page 50 figure 32. Compressor unit voltage information the following compressor checklist is provided to analyze the compressor and determine if it is operating properly or if it is faulty: 1. Electrical service panel – turn power off. A. Check circuit terminal connections for tightn...

  • Page 51

    Scwd-qs (12/16) page 51 note: cautiously and carefully feel the top of the compressor to see if it has overheated. If it is hot, the internal overload may be open. You may have to wait several hours for it to reset before proceeding. If the compressor draws a high amperage and does not start (ampera...

  • Page 52

    Scwd-qs (12/16) page 52 8. Grounded windings test the compressor motor for a grounded winding. The check should be made using an ohmmeter capable of measuring very high resistance on a vom. The resistance between windings and the housing is one million to three million ohms for an ungrounded winding...

  • Page 53

    Scwd-qs (12/16) page 53 2) system problem / symptom likely cause(s) action/correction a. System does not run. Note: some digital thermostats have a built-in five-minute time delay . 1. Thermostat fault. 1. Adjust thermostat settings. / replace thermostat. 2. Power supply problem (ahu / compressor un...

  • Page 54

    Scwd-qs (12/16) page 54 c. System blows fuses or trips circuit breaker (cont.) 3. Internal short circuit. Loose or improper connection in system. 3. Check wiring in system. See appropriate wiring schematics and diagrams. Test components, especially the compressor, for shorts and grounds. 4. Excessiv...

  • Page 55

    Scwd-qs (12/16) page 55 g. Uncomfortable temperature. (not enough heat/cold air) (cont’d) 5. Compressor fault. 5. To reset switch, turn primary power off then back on; turn thermostat system switch to off, then back on. 6. Outdoor thermostat not connected or failed (heating mode). 6. Check outdoor t...

  • Page 56: Commissioning Document

    Scwd-qs (12/16) page 56 commissioning document download “worksheet – system commissioning” (lit-170) on earthlinked.Com in the technical manuals section (sheets and forms). This document enables verification and documentation of system component model numbers, location of underground system componen...

  • Page 57: Tools And Equipment

    Scwd-qs (12/16) page 57 tools and equipment the purpose of the following list is to highlight key pieces of equipment, tools and materials necessary for the installation, maintenance and servicing of earthlinked ® heating and cooling system hvac (above ground) equipment. The professional hvac techni...

  • Page 58: Triple Evacuation

    Scwd-qs (12/16) page 58 triple evacuation triple evacuation is implemented to evacuate a system to a deep vacuum. It is accomplished by evacuating a system to a vacuum of 1500 microns, and then bleeding a small amount of dry nitrogen into the system. The nitrogen is then blown out to the atmosphere....

  • Page 59: – No Surestart

    Scwd-qs (12/16) page 59 appendix a: electrical diagrams – no surestart the following compressor unit electrical diagrams do not include surestart. They are as follows: figure a1. Scwd compressor unit electrical schematic diagram (no surestart), 230-1- 60……..60 figure a2. Scwd compressor unit electri...

  • Page 60

    Scwd-qs (12/16) page 60 figure a1: scwd compressor unit electrical schematic diagram (no surestart), 230-1-60

  • Page 61

    Scwd-qs (12/16) page 61 figure a2: scwd compressor unit electrical schematic diagram (no surestart), 230-3-60

  • Page 62: Appendix B

    Scwd-qs (12/16) page 62 appendix b : functions of the nano-plc programmable logic controllers (nano-plc) come standard in all prime series units as well as in the classic sdh, scw and scwd. The nano-plc is programmed to ensure different functions depending on the units; you can find a detailed descr...