T Therm Geo TST-***, Installation & Operating Instructions Manual

Page 1: ...r Since this product requires line sets and air coil installation an experienced and licensed refrigeration technician is required Domestic Water Heater Desuperheater Energy Star promotes the desuperh...

Page 2: ...hanical Installation Refrigeration 22 Charging Procedure 23 Superheat and Sub Cooling 24 Unit Operating Conditions Heat Cool 25 R 410A Pressure Temperature Conversion Chart 27 Electrical Hookup 28 GEO...

Page 3: ...hich may apply to the specific installation See Additional Equipment Concerns Field Setup or Programming Operation Indicators User Instructions Control Sequence and Troubleshooting sections within thi...

Page 4: ...literature tags and labels attached to the unit and other safety precautions that may apply such as the following safety measures Follow all safety codes Wear safety glasses and work gloves Use a quen...

Page 5: ...ion 8 C Copper N Cupronickel M Copper Load Cupronickel Source S Stainless THT only Auxiliary kW Option 13 14 05 4 8 kW 10 9 6 kW 15 14 4 kW 20 19 2 kW XX None Can be factory or field installed Vintage...

Page 6: ...ower CFM Temp Rise COP Capacity Btu h Blower CFM Temp Rise COP FL 8 32 9 850 32 4 05 24 8 850 26 3 56 TST 024 PL 8 21 8 725 29 21 6 18 5 725 26 3 89 FL 10 42 3 1200 31 8 4 01 33 0 1200 26 5 3 62 TST 0...

Page 7: ...Desup Pump Loop Pump Ext Total Min Model 60 Hz RLA LRA FLA FLA FLA Ampac Max Fuse HACR TST 024 Not Available TST 036 200 230 3 14 2 88 15 4 4 18 6 22 1 30 TST 048 200 230 3 16 5 110 0 15 4 4 20 9 25 0...

Page 8: ...12 03 2012 6 GI301 Product Dimensions Forced Air Coil Reference Information...

Page 9: ...all responsibility and or liability associated with any needed installation of the gas oil furnace fuel system flue chimney etc Any instructions or comments made within this manual or factory phone as...

Page 10: ...they cause to great reduction to system airflow Comment zone dampers cause back pressure on the blower and overall reduced airflow Reduced airflow can cause the geothermal unit to perform poorly or in...

Page 11: ...meplate input Btuh output CFM Temperature Rise x 1 08 Duct Sizing Chart Acceptable Branch Duct Sizes Acceptable Main or Trunk Duct Sizes CFM ROUND Rectangular Round Rectangular 100 6 4x8 4x6 150 7 4x1...

Page 12: ...l loops are typically installed with a well drilling rig up to 200 feet 61 meters deep or more Horizontal systems are typically installed with excavating or trenching equipment approximately six to ei...

Page 13: ...ing water This pressure differential can then be compared to the engineering specifications data to determine the flow rate of the system A Flow Meter is an important part of the system It provides a...

Page 14: ...12 03 2012 12 GI301 Figure 4 Non Pressurized Closed Loop with Flow Center Typical piping arrangement Figure 5 Pressurized Closed Loop with Flow Center Typical piping diagram...

Page 15: ...ater WARNING NOT ALL GLYCOLS PROVIDE THE SAME LEVEL OF CONCENTRATION MOST GLYCOLS DO NOT CONTAIN ENOUGH INHIBITORS FOR THE RECOMMENDED CONCENTRATION LEVELS FOR GEOTHERMAL SYSTEMS Open Loop An open sys...

Page 16: ...flow with a reasonable pressure drop generally 1 00 diameter Water discharge is generally made to a drain field stream pond surface discharge tile line or storm sewer Solenoid Valve Wiring for Open L...

Page 17: ...runs and warms up The compressor will then restart again providing heat until the LWT again reaches 39 F If this routine continues the heat pump may not be able to maintain the temperature in the hous...

Page 18: ...flow through the complete desuperheater circuit purging out the air When all the air is purged close the boiler drain and open the ball valve to the bottom of the water heater 5 Never operate the syst...

Page 19: ...and an easy method of purging the desuperheater piping with city well water forcing through the system and out the hose bib drain Note Both ball valves must be open whenever the desuperheater electri...

Page 20: ...the increased air flow larger ductwork should be installed All ductwork should be checked for leaks and repairs made accordingly The duct system and diffusers should be sized to handle the design airf...

Page 21: ...an orientation that will allow it to work properly All brazing will need to be done at the same time so a 2 3 psi nitrogen purge can flow through the line set TXV and coil while brazing Low silver cop...

Page 22: ...12 03 2012 20 GI301...

Page 23: ...ts and valves on the unit 10 Reinstall the Schrader cores in both service ports after lines have cooled 11 Pressure test the line set and A coil assembly using nitrogen and a trace gas if necessary 12...

Page 24: ...tion If one of the tubes happens to kink and it cannot be fully removed the tube must be replaced A kink in a tube will adversely affect system performance When installing the line set it is imperativ...

Page 25: ...ections made in the field Check the service valve ports and stem for leaks If a leak is found repair it and repeat the above steps For safety reasons do not pressurize system above 150 psig The system...

Page 26: ...1 Remove the seal cap from the bottom of the TXV valve 2 Turn the adjustment screw clockwise to increase superheat and counterclockwise to decrease superheat One complete 360 turn changes the superhe...

Page 27: ...6 990 1030 315 335 128 134 13 0 17 0 114 122 45 51 6 9 10 9 1 68 5 6 7 6 9 33 38 9 0 10 0 1 6 970 1010 354 374 133 139 15 1 19 1 150 158 61 68 8 1 12 1 2 32 3 4 7 4 12 26 34 17 0 23 0 3 0 1487 1567 3...

Page 28: ...2 1052 1092 267 287 115 121 13 7 17 7 145 155 61 67 9 6 13 6 1 86 6 7 8 7 9 18 6 23 6 8 4 10 4 2 1 1063 1103 334 354 131 137 14 6 20 6 147 157 62 68 9 2 13 2 2 59 11 9 15 9 12 21 2 29 2 13 9 19 9 3 8...

Page 29: ...122 0 122 3 122 7 123 0 123 4 123 7 124 1 124 4 124 8 125 1 125 4 125 8 126 1 126 5 126 8 127 1 127 5 127 8 128 1 128 5 128 8 129 1 129 4 129 8 130 1 130 4 130 7 131 1 131 4 131 7 132 0 540 542 544 5...

Page 30: ...afety disconnect is required see nameplate max amps Loop pumps control box upper right is the pump relay board with field terminal block connection for the source loop pump station and where applicabl...

Page 31: ...Logic processes this status forwards this status to various connections indicators lights and provides AUX backup heat from stat Y This operating state is only cleared by a power reset HUM a stat ter...

Page 32: ...allows the closed loop to absorb more heat from the earth and move it into the home The installer must be familiar with the manufacturer s low voltage wiring terminology screw terminal terminology co...

Page 33: ...e 8 GEO Logic Board Assignment WARNING ANY CHANGES MADE TO SWITCH SETTIINGS JUMPERS OR ACCESSORIES CONNECTED TO THE GEO LOGIC CONTROLLER WILL REQUIRE THE GEO LOGIC CONTROLLER TO BE POWER CYCLED FOR TH...

Page 34: ...re each one is connected 4 The wires and connector to connect the interface module to the GEO Logic controller are located inside the interface module cabinet 5 Thermostat wire containing 6 wires is n...

Page 35: ...need to deactivate the desuperheater pump again pull off this tagged wire and move it to the P tab directly above the row of small relays The desuperheater will operate under GEO Logic control in both...

Page 36: ...temperature sensors to reach a normal starting pressure or operating temperature range GREEN Cooling Mode ON Solid Stat Y input is active Pulsing ACD is timing anti cycle delay timer Normal compresso...

Page 37: ...a pause in the system for possible system correction or notification for further service action HI PRESSURE HIGH TEMP LIMIT Red LED ON Solid High pressure lockout Pulsing Load side discharge temp too...

Page 38: ...unts out a code for the current fault see Fault Codes PROGRAM FAULT CODES FAULT COUNT LED 1 Pulse Lost Source Flow 2 Pulses Refrigerant High Pressure Limit 550 psi 3 Pulses Refrigerant Low Pressure Li...

Page 39: ...arameters reach a point where system corrective action is advised GEO Logic has default points where the manufacturer feels notification should be made When any one of these temperature points is reac...

Page 40: ...the Forced Air Heat Pump Operational Statistics sheet This sheet is the top page of this manual It should be removed filled out and kept with the manual for future reference 1 Do not connect refriger...

Page 41: ...cord the running voltage Check and record the total amp draw Check and record the compressor amp draw 9 Raise the thermostat only enough to call 2nd stage if applicable Check and record the source sid...

Page 42: ...k out the compressor During both hard and soft lockouts the fault codes are displayed The flow switch has a bypass timer in which the GEO Logic board will ignore an open flow switch for the first 15 s...

Page 43: ...ion components but as an electronic logic product unpredictable and unusual transients or interferences may sometimes cause strange results If the GEO Logic controller is acting strange one immediate...

Page 44: ...nnected to W1 and L2 is connected to W2 WARNING DISCONNECT ALL ELECTRICAL POWER BEFORE ELECTRICALLY CONNECTING OR SERVICING THE UNIT FAILURE TO DISCONNECT THE ELECTRICAL POWER BEFORE WORKING ON THIS P...

Page 45: ...ource flow High Low High High High High Low Low return load temperature Low High Low Low Low High High High return load temperature High Low High High High Low Low Scaled source coil Low High Low Low...

Page 46: ...ter supply Flush until leaving water is clear 8 Repeat procedure until solution runs clear through the chlorine circulation process 9 Flush entire heat pump system with water This procedure can be rep...

Page 47: ...Low Low Low Restricted filter drier Low High Low High Low Low Low Bad TXV No Bulb charge Low High Low High Low Low Low Troubleshooting Guide for Water to Air Geo cooling Head pressure Subcool Suction...

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Page 49: ...l valve AIR COIL Air heat exchanger BL Ref Blower TXV C Expansion valve cool TXV H Expansion valve heat F D Filter dryer LOOP COIL Source heat exchanger P Ref Loop pump FL Flow switch EWT Ref Loop ent...

Page 50: ...RV Reversing valve BV Ball valve AIR COIL Air heat exchanger BL Ref Blower TXV C Expansion valve cool TXV H Expansion valve heat F D Filter dryer LOOP COIL Source heat exchanger P Ref Loop pump FL Fl...

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Page 52: ...n valve and heat exchanger s of its products are free from defects in materials and workmanship through the tenth year following date of original purchase If any compressor reversing valve expansion v...

Page 53: ...ect to adjustment upon verification of defect 2 Any product or product part that has been damaged as a result of being improperly serviced or operated including but not limited to the following operat...