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SD-410-QS (H) (06/15) 

 

Page 65 

 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.  The system is then evacuated 
until the vacuum is again reduced to 1500 microns.  This procedure is repeated three times, with the 
last vacuum level reaching a deep vacuum of 400 microns, which is held for 10 to 15 minutes.  The 
following is a detailed description of the triple evacuation. 

1.  Attach an electronic micron gage to the system.  The best place is as far from the vacuum port 

as possible, which would be the access port on a service valve on the EarthLinked

®

 

compressor unit. 

2.  Let the vacuum pump run until the micron gage reaches 

1500 microns.

 

3.  Allow a small amount of dry nitrogen to enter the system until the vacuum shows about 20 

inches of Hg on the manifold gage.  This small amount of dry nitrogen will fill the system and 
mix with the other vapors. 

4.  Open the vacuum pump valve and start the vapor removal process from the system again.  

Let the vacuum pump run until the vacuum is again reduced to 

1500 microns.   

Repeat Step 3.

 

5.  After nitrogen has been added to the system a 

second time

, open the vacuum pump valve 

and again remove the vapor.  Operate the vacuum pump until the vacuum on the electronic 
micron gage reads 

400 microns.

 

6.  Once the micron gage reads 

400 microns for 10 to 15 minutes

, isolate the micron gage and 

charge the system in accordance with the initial refrigerant charging procedure. 

 

 

Summary of Contents for AVS-0030-A

Page 1: ...SD 410 QS H 06 15 Copyright 2015 Earthlinked Technologies Inc Classic Series SD H Geothermal Heating and Cooling System Quick Start Instructions...

Page 2: ...Electrical 13 Plumbing 21 Antifreeze Protection 23 Internal Heat Recovery System 24 Earth Loop Protection System 28 Anode Wire Installation 28 EPS Operation and Service 33 Current Verification 34 Syst...

Page 3: ...Field Wiring Diagram 20 Figure 11 Typical SD H Primary Hydronic Circuit Plumbing 21 Figure 12 Standard Storage Water Heater Service Connections 25 Figure 13a GSTE Storage Water Heater Service Connect...

Page 4: ...s 46 Figure 35 Trickle of Bubbles Inline Sight Glass 46 Figure 36 Minimum Suction and Discharge Pressures 47 Figure 37 Pressure Temperature for R 410A 48 Figure 38 Cooling Mode Start Up 49 Figure 39 C...

Page 5: ...provide installation and service by an ETI authorized installer in a manner consistent with this manual will void and nullify the limited warranty coverage for the system Earthlinked Technologies sha...

Page 6: ...s GSTE Storage Water Heater Series GST Storage Water Tank Model HHK CWK 1872 Temperature Control Kit Earth Loop Specification and Installation Manual SureStart Manual Earth Loop Protection Kit Install...

Page 7: ...AVS 0060 A CCS 0060 A TXV 3672CE HWM 060C 060 C 1 Contained in each compressor package compressor unit four L shaped hold down brackets service valves liquid and vapor adapters for service valves and...

Page 8: ...sidence Attic installations must include a condensate pan with drain and suspension from rafters with suspension isolators Clearance around the unit for service is illustrated in Figure 4 However loca...

Page 9: ...pressor unit IMPORTANT EarthLinked compressor units that provide space cooling shall be equipped with an EarthLinked Hybrid Cooling Module HCM when 1 Required by the performance tables OR where BOTH o...

Page 10: ...4 3 4 3 4 7 8 7 8 7 8 6 AH CC Vapor Braze 3 4 3 4 3 4 7 8 7 8 7 8 7 8 7 Plugged Braze 8 HWM Liquid Braze 1 2 1 2 1 2 1 2 1 2 1 2 1 2 9 DWT Supply Solder 1 2 1 2 1 2 1 2 1 2 1 2 1 2 10 DWT Return Solde...

Page 11: ...ure out of the compressor unit and the POE lubricant Complete preparing and brazing all compressor unit refrigerant connections at one setting to minimize exposure of open connections to air Failure t...

Page 12: ...M MODEL LINE SET O D INCHES LIQUID VAPOR LIQUID VAPOR 2 0 Tons 024 3 8 5 8 024C 3 8 1 2 2 5 Tons 030 3 8 3 4 030C 3 8 1 2 3 0 Tons 036 1 2 3 4 036C 3 8 1 2 3 5 Tons 042 1 2 3 4 042C 1 2 5 8 4 0 Tons 0...

Page 13: ...external electrical connection on the backside of the compressor cabinet The anode wire connection is detailed in a later section of this manual SD H Heating and Cooling System electrical and applicat...

Page 14: ...ZP44K5E PFV 230 1 60 207 253 135 0 23 9 29 0 50 042 2C ZP44K5E TF5 230 3 60 207 253 98 0 16 1 20 0 30 048 1C ZP51K5E PFV 230 1 60 207 253 134 0 29 4 36 0 60 048 2C ZP51K5E TF5 230 3 60 207 253 110 0...

Page 15: ...SD 410 QS H 06 15 Page 15 Figure 8a SD H Compressor Unit Electrical Ladder Diagram 230 1 60...

Page 16: ...SD 410 QS H 06 15 Page 16 Figure 8b SD H Compressor Unit Electrical Schematic Diagram 230 1 60...

Page 17: ...SD 410 QS H 06 15 Page 17 Figure 9a SD H Compressor Unit Electrical Ladder Diagram 230 3 60...

Page 18: ...SD 410 QS H 06 15 Page 18 Figure 9b SD H Compressor Unit Electrical Schematic Diagram 230 3 60...

Page 19: ...SD 410 QS H 06 15 Page 19 Figure 10a SD H Air Heating Cooling Hydronic Heating and Water Heating Application...

Page 20: ...SD 410 QS H 06 15 Page 20 Figure 10b SD H Air Heating Cooling Hydronic Heating and Water Heating Field Wiring Diagram...

Page 21: ...antifreeze mixture The kit includes calibration equipment 2 Strainer Models ST 1836 for 1 5 thru 3 0 ton systems and ST 4272 for 3 5 thru 6 0 ton systems are 20 mesh brass inline strainers available f...

Page 22: ...All plumbing installations are to be in accordance with the applicable local and national codes WARNING The heat exchanger must be isolated from the water system when the system undergoes a superchlor...

Page 23: ...ith an inhibitor prior to filling the system or it can be purchased as inhibited propylene glycol The following are examples of manufacturers for the above Straight propylene glycol Chemical Specialti...

Page 24: ...esired results Introduce a sufficient quantity of water to the system and pressure check to ensure a sealed system Drain some water from the system to provide enough volume for the calculated amount o...

Page 25: ...ith a standard electric water heater Operation of the Heat Recovery System during the cooling season utilizes waste heat from the cooling system and does not impose an additional load on the cooling o...

Page 26: ...SD 410 QS H 06 15 Page 26 Figure 13a GSTE Storage Water Heater Service Connections Figure 13b GSTE Storage Water Heater Tank Top View...

Page 27: ...ulation independent of compressor operation The GSTE storage water heaters are available in 60 80 and 119 US gallon capacities all of which have a 4 5 kW electric heating element which provides the fo...

Page 28: ...sor Cabinet Socket Cap The EPS KIT contains the plug connector which will be field assembled and connected to the anode wire The steps to install the anode wire to the plug connector assembly are as f...

Page 29: ...SD 410 QS H 06 15 Page 29 Figure 15 Disassembled Plug Connector...

Page 30: ...of the strands of anode wire on one terminal Figure 16 Anode Wire Insertion After inserting all strands of the anode wire into one of the terminals on the plug insert tighten the wire in place by tig...

Page 31: ...in the plug body as shown in Figure 18 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 body Engage the threads of th...

Page 32: ...ssembled re connect the sealing cap assembly tool to the socket on the compressor unit cabinet After aligning the electrical contact pins manually engage the threads on the plug locking cap with the t...

Page 33: ...ll wiring and connection as appropriate from the EPS module to the earth loop to ensure they are not shorting If none of the lights are illuminated check and replace as appropriate the fuse for the EP...

Page 34: ...EPS module as shown in Figure 23 and connect the DC ammeter as shown to measure and verify the current flow Figure 23 Test for DC Current WARNING Use extreme caution when checking current through the...

Page 35: ...r unit are illustrated in Figures 24 and 25 The evacuation and charging process will utilize an access port initial charging port and final charging port Figure 24 SD H Internal Flow Schematic CAUTION...

Page 36: ...er venting the pressurized system connect the Gage Block and Hoses as shown in Figure 26 LP and HP valves are fully open Both Service Valves are fully opened 3 As illustrated in Figure 26 connect a go...

Page 37: ...microns initiate the evacuation process again and until the above conditions are met A procedure often used to evacuate a system to a deep vacuum level known as the triple evacuation method is detail...

Page 38: ...s of refrigerant gas vapor is harmful and may cause heart irregularities or death Vapor reduces oxygen available for breathing and is heavier than air Decomposition product are hazardous Liquid contac...

Page 39: ...itial charging port goes directly to the system earth loops it does not go to the compressor Should the pressures equalize and prevent the intended charge from entering completely terminate the proces...

Page 40: ...F to 80 F If necessary the air can be warmed with electric supplemental heat in the air handler Shunt R to W2 at the terminal block Hydronic Systems If heating is provided through a hydronic water mo...

Page 41: ...5 Adding liquid refrigerant will raise the liquid level in the ACC Continue to add liquid refrigerant to the system until the liquid level has reached the bottom sight glass as shown in Figure 29 6 W...

Page 42: ...re is below the acceptable range air flow is too high Adjust air flow as appropriate Figure 30 Air System Performance Parameters For Hydronic Systems In Figure 31 locate the evaporating temperature on...

Page 43: ...to 80 F If site conditions prevent maintaining an air handler return air temperature between 70 F and 80 F the cooling system start up steps can be completed at a later time If the cooling mode start...

Page 44: ...EFRIGERANT in the bottom sight glass proceed to step 5 4 If there is LIQUID REFRIGERANT in the bottom ACC sight glass continue to run the system to remove the liquid refrigerant from the ACC in accord...

Page 45: ...SD 410 QS H 06 15 Page 45 Figure 32 Suction Pressure and Temperature Measurements SC System shown...

Page 46: ...120 psig there are still many bubbles in the INLINE sight glass as shown in Figure 33 refrigerant must be added to the system through the final charging port 8 Observe the refrigerant flow in the INL...

Page 47: ...Figure 36 When these conditions are met proceed to step 11 adjustment of the TXV superheat Figure 36 Minimum Suction and Discharge Pressures 11 The TXV is to be adjusted to provide 10 F to 15 F super...

Page 48: ...erature from the suction temperature read at the compressor suction port thermocouple The difference in the temperatures is the superheat Superheat F Suction Temp F Saturation temp F 15 The TXV must b...

Page 49: ...SD 410 QS H 06 15 Page 49 Figure 38 Cooling Mode Start Up...

Page 50: ...ce Figure 39 CAUTION SERVICE MAY BE PERFORMED ONLY BY AN EARTHLINKED TECHNOLOGIES AUTHORIZED PROFESSIONAL HVAC OR REFRIGERATION SERVICE PERSON USE ONLY SAFE AND APPROVED SERVICE TECHNIQUES IMPROPER IN...

Page 51: ...cceptable voltage range See Figure 39 5 Check voltage at compressor unit terminals to determine whether it is within acceptable voltage range See Figure 39 6 Running Amperage Connect a clip on type am...

Page 52: ...ompressor windings as shown in Figure 40 The power leads to the compressor must be disconnected before taking an electrical measurement A good rule of thumb for single phase compressors is that start...

Page 53: ...and to each compressor terminal as shown in Figure 41 A short circuit at a high voltage indicates a motor defect Figure 41 Compressor Motor Grounded Winding Test 9 Compressor not pumping Connect gage...

Page 54: ...ompressor diagram replace the compressor B System runs for long period or continuously 1 Thermostat fault 1 Adjust thermostat settings Replace thermostat 2 Refrigerant undercharged 2 Repair leak Evacu...

Page 55: ...evel in ACC Repair leak evacuate system and recharge with refrigerant 2 System undercharged 2 Charge system 3 Four way valve is short circuiting refrigerant and bypassing hot gas to suction 3 Replace...

Page 56: ...Control is set to actuate at 5 R 22 407C 25psig R 410A low pressure and 400 R 22 407C 600 psig R 410A high pressure 10 Check for continuity on both switches under normal pressure conditions 11 Reduce...

Page 57: ...ssioning Document The document that follows LIT 170 enables verification and documentation of system component model numbers location of underground system components and system performance for air an...

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Page 64: ...capacity Evacuation Manifold for vacuum pump Digital Vacuum micron Gauge Charging Evacuating Manifold for R 410A Charging Hi Vacuum Hoses black quantity of 6 Digital Refrigerant Scale Digital Thermome...

Page 65: ...be the access port on a service valve on the EarthLinked compressor unit 2 Let the vacuum pump run until the micron gage reaches 1500 microns 3 Allow a small amount of dry nitrogen to enter the syste...

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