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1-Nov-2021

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001200MAN-09

Maritime Geothermal Ltd.

P.O. Box 2555, 170 Plantation Road

Petitcodiac, NB E4Z 6H4

(506) 756-8135

R/RH-Series

Liquid to Air Geothermal Heat Pumps

Two-Stage R410a

Model Sizes 45-80

[email protected]

www.nordicghp.com

001200MAN-09

1-Nov-2021

Installation and Service Manual

Содержание R-45

Страница 1: ...l Ltd P O Box 2555 170 Plantation Road Petitcodiac NB E4Z 6H4 506 756 8135 R RH Series Liquid to Air Geothermal Heat Pumps Two Stage R410a Model Sizes 45 80 info nordicghp com www nordicghp com 001200...

Страница 2: ...is performed CAUTION Venting refrigerant to atmosphere is illegal A proper refrigerant recovery system must be employed whenever repairs require removal of refrigerant from the heat pump Series R Rev...

Страница 3: ...C Y Z SDELF SDERF 12 13 14 15 2 T 4 T 6 S 7 T R 80 HACW P 1 2 3 4 7 S C Y Z SDELF SDERF 10 11 RH 45 HACW P 1 2 3 4 6 7 T C Y Z SDELF SDERF 08 RH 55 HACW P 1 2 3 4 6 7 T C Y Z SDELF SDERF 08 RH 65 HACW...

Страница 4: ...31 Water Flow Control 31 Submersible Pump Selection 32 Table of Contents Stage 1 vs 2 on Open Loop 32 Plumbing the Heat Pump 32 Pipe Insulation 32 000907CDG Typical Open Loop Installation 33 001822CDG...

Страница 5: ...onfiguration 25 000609INF Typical Vertical Ground Loop Configuration 26 000906CDG Geo Flo Circulator Pump Module Installation 27 001823CDG Dual Flow Circulator Pump Module Installation for 2 Stage Hea...

Страница 6: ...ns A single thermo static expansion valve TXV regulates superheat The cabinet is constructed from powder coated galvanized sheet metal 1 Heating Mode In heating mode the heat pump heats warm air in a...

Страница 7: ...slightly exceeds the calculated heat load Some background on Standard Capacity Ratings closed ground loops are normally designed to reach a minimum tem perature of just below freezing at the end of t...

Страница 8: ...RCHASED Sample Bill of Materials Open Loop Installations FROM MARITIME GEOTHERMAL R RH SERIES HEAT PUMP L OR R RETURN PLENUM HEATER __kW THERMOSTAT WIFI OR STD P T PORTS AND HOSE ADAPTERS 2 DOLE VALVE...

Страница 9: ...at step 2 for the access panel with the blower mounted in it Set the assembly on the floor 5 Disconnect the plenum heater extension from the blower housing and from the access panel 6 Mount the blower...

Страница 10: ...is mounted inside heat pump cabinet See diagram on following page Remove the screws from the cover plate remove the cover plate and place the plenum heater in the cutout Slide it up and secure the bot...

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Страница 12: ...at pump has provisions for connecting the circulator pump module so that the pumps will be turned on whenever the compressor operates Connect the circulator pump module to the appropriate two terminal...

Страница 13: ...Cooling Mode reversing valve Y2 Heat Pump Stage 2 not used for single stage units AR1 Airflow Reduction AR2 Airflow Reduction CP I Plenum Heater dry contact Connect to C or I in plenum heater 1 Plenum...

Страница 14: ...flow sensor located in the drip tray and the voltage of the 24vac transformer A fault will occur if a conden sate overflow is detected or a low voltage condition electricity grid brownout is detected...

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Страница 17: ...es the possibility of reverse heating of the refrigerant gas under low condensing temperature operating conditions WARNING USE ONLY COPPER LINES TO CONNECT THE DESUPERHEATER TEMPERA TURES CAN BE 200 F...

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Страница 20: ...e heater elements If desired the first 5 10 feet of the main supply trunks can be insulated internally with acoustical duct insulation to further inhibit any noise from the unit from travelling down t...

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Страница 22: ...17 16 5 x 16 5 22 944 2250 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18 5 x 18 5 22 1062 2600 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18 5 x 18 5 24 1227 2900 22 12 x 36 14 x 30 16 x 26 18 x 23 2...

Страница 23: ...pump module that can deliver the flow required for the unit at the calculated total pressure drop should be selected Refer to the Model Specific Information section for unit flow re quirements Loop pr...

Страница 24: ...k closed cell pipe insulation to prevent condensa tion and dripping onto floors or walls Although many different antifreeze solutions have been employed in geothermal systems the alcohols such as meth...

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Страница 30: ...or significant Ammonia 0 5 ppm or H2S 0 2 ppm is present the use of an open loop system should be reconsidered Water Discharge Methods Water disposal methods vary from area to area However some consi...

Страница 31: ...the pipe from freezing As opposed to the percolation method water will remain in the end of the pipe It is recommended that the surface of the pond be lower than the installation location of the heat...

Страница 32: ...ble pump will proba bly negate the COP benefit of running the heat pump on stage 1 In this case it is recommended to jumper Y1 and Y2 together at the heat pump terminal strip in order to satisfy the h...

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Страница 36: ...freeze and the mixture value on the startup sheet circle Vol or Weight 4 Record the static loop pressure on the startup sheet Outdoor Loop Open Loop 1 Verify there are no leaks in the connections to t...

Страница 37: ...unit Connect the brown wire with the blue insulated terminal to the compressor contactor as shown in the electrical box diagram Turn the DHW Switch in the unit post on Turn the power to the unit on 6...

Страница 38: ...orrect and securely fastened Circuit breaker or fuse size and wire gauge for Heat Pump A Ga Circuit breaker or fuse size wire gauge and Plenum Heater size A Ga kW Low voltage connections are correct a...

Страница 39: ...warm water open loop systems unusual Coaxial Heat Exchanger Flushing Procedure Open Loop 1 Isolate the heat exchanger by closing the valves in the IN and OUT ports to the heat exchanger 2 Blow out the...

Страница 40: ...urs 3 hours recommended 5 Disconnect the purge cart and dispose of the solution RYDLYME is non toxic and biodegradable and as such can be poured down a drain Clean the purge cart thoroughly 6 Connect...

Страница 41: ...urn the power off wait 10 seconds and turn the power back on Set the thermostat to call for heating or cooling depending on the season STEP 3 If a 24VAC signal does not appear across Y1 and C of the t...

Страница 42: ...th compressor on See Low Discharge Pressure in Heating Mode Cooling Mode Troubleshooting section Faulty low pressure con trol failed open very unlikely For this test there must be a signal present on...

Страница 43: ...re compressor overload has had a chance to reset If compressor is hot this may take several hours Replace the compressor Burned out motor shorted windings Remove wires from compressor Resistance betwe...

Страница 44: ...of the flow restriction and correct it Verify pumps are working and sized correctly for ground loop systems Verify well pump and water valve is working for ground water sys tems Entering liquid temper...

Страница 45: ...osits Backflush the coaxial exchanger with a calcium removing cleaning solution OPERATION TROUBLESHOOTING HEATING MODE Fault Possible Cause Verification Recommended Action High Suction Pressure may ap...

Страница 46: ...Low Suction Pressure Low airflow See Fan Troubleshooting section Note low airflow will cause the air coil to ice up once the suction drops below 90PSIG Correct the problem TXV stuck almost closed or...

Страница 47: ...the following at the fan con trol signal harness insert probes in connector where wire is inserted do not unplug the connector Recirculation grey pin 15 Stage 1 yellow pin 6 Stage 2 yellow black pin1...

Страница 48: ...heck the thermostat manual Faulty thermostat Thermostat doesn t indicate a call for auxiliary or emergency when it should Or thermostat indicates aux iliary or emergency but no 24VAC signal present ac...

Страница 49: ...why possible shorted element Correct problem and replace blown fuse or reset breaker Reset button tripped on hot water tank Check voltage at elements with multimeter Push reset button DHW switch is t...

Страница 50: ...rocedures to prevent soot buildup inside the pipes It is recommended to replace the liquid line filter dryer any time the refrigeration system has been exposed to the atmosphere Place a wet rag around...

Страница 51: ...soot buildup inside the pipes 4 Vacuum the unit as per above procedure 5 If there was a compressor burnout a Charge the unit with new refrigerant and operate it for continuously for 2 hours Pump down...

Страница 52: ...Adequate antifreeze concentration required Heating Maximum ELT 80 27 Reduce flow above this temperature Cooling Minimum ELT 41 5 Flow reduction may be required Cooling Maximum ELT 110 43 INDOOR air d...

Страница 53: ...6 16 1 01 Stage 1 1660 783 2 305 54 300 15 9 7 2 24 4 Stage 2 2100 991 3 710 69 800 20 5 5 7 19 4 R 80 6 17 1 07 Stage 1 2400 1133 4 130 86 500 25 4 5 8 19 6 Table 19 Standard Capacity Ratings Ground...

Страница 54: ...4 3 30 4 6 32 5 5 38 7 2 50 12 0 76 5 2 36 5 5 38 6 6 45 8 7 60 13 0 82 5 9 41 6 2 43 7 4 51 9 7 67 R RH 45 14 0 88 6 7 46 7 0 48 8 6 59 11 3 78 15 0 95 8 0 55 8 2 57 9 5 65 12 5 86 6 0 38 1 1 7 6 1 2...

Страница 55: ...1 0 6 9 1 3 9 0 8 0 50 1 2 8 3 1 3 9 0 1 3 9 0 1 7 12 9 0 57 1 5 10 1 6 11 1 6 11 2 1 14 10 0 63 1 8 12 1 9 13 2 1 14 2 8 19 11 0 69 2 1 14 2 3 16 2 4 17 3 2 22 12 0 76 2 4 17 2 6 18 2 9 20 3 8 26 13...

Страница 56: ...7 50 10 60 7 0 34 965 11 1 2 770 116 1 200 103 38 0 44 185 4 67 Fan W 179 179 179 179 179 179 179 179 HEATING COOLING OUTDOOR LOOP 15 Methanol ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat...

Страница 57: ...0 12 59 8 6 51 663 14 1 3 247 112 1 500 108 40 4 62 471 5 64 Fan W 185 185 185 185 185 185 185 185 HEATING COOLING OUTDOOR LOOP 15 Methanol ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej...

Страница 58: ...14 58 8 7 61 001 18 3 4 353 113 1 900 107 38 6 75 456 5 08 Fan W 300 300 300 300 300 300 300 300 HEATING COOLING OUTDOOR LOOP 15 Methanol ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej...

Страница 59: ...5 69 50 16 60 8 9 71 411 21 1 4 951 113 2 100 109 40 6 87 893 5 20 Fan W 410 410 410 410 410 410 410 410 HEATING COOLING OUTDOOR LOOP 15 Methanol ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C He...

Страница 60: ...00 106 4 38 4 87 458 4 64 66 0 50 16 8 57 0 9 0 75 450 26 1 5 594 113 2 400 109 3 41 3 94 236 4 94 Fan W 661 661 661 661 661 661 661 661 HEATING COOLING OUTDOOR LOOP 15 Methanol ELECTRICAL ELT C Cond...

Страница 61: ...230 581 1000 472 850 401 75 1974 932 1678 792 1560 736 1326 626 1105 522 940 443 80 2256 1065 1918 905 N A N A N A N A 1263 596 1074 507 Table 25 HIGH Airflow 6 Model STAGE 2 STAGE 1 FAN ONLY Recircul...

Страница 62: ...required if connecting 115VAC circulators to the unit R RH 55 1 208 230 1 60 187 253 20 4 122 4 0 5 0 30 2 35 3 50 8 2 2 208 3 60 187 229 14 0 83 4 0 5 0 23 8 27 3 40 8 3 3 265 277 1 60 226 304 16 0 1...

Страница 63: ...1 Nov 2021 Page 63 001200MAN 09 Wiring Diagram 208 230 1 60...

Страница 64: ...1 Nov 2021 Page 64 001200MAN 09 Electrical Box Layout R 45 75 208 230 1 60...

Страница 65: ...1 Nov 2021 Page 65 001200MAN 09 Electrical Box Layout R 80 208 230 1 60...

Страница 66: ...1 Nov 2021 Page 66 001200MAN 09 Electrical Box Layout RH 45 75 208 230 1 60...

Страница 67: ...1 Nov 2021 Page 67 001200MAN 09 Wiring Diagram 208 3 60...

Страница 68: ...1 Nov 2021 Page 68 001200MAN 09 Electrical Box Layout R 45 75 208 3 60...

Страница 69: ...1 Nov 2021 Page 69 001200MAN 09 Electrical Box Layout R 80 208 3 60...

Страница 70: ...1 Nov 2021 Page 70 001200MAN 09 Electrical Box Layout RH 45 75 208 3 60...

Страница 71: ...1 Nov 2021 Page 71 001200MAN 09 Wiring Diagram 265 277 1 60...

Страница 72: ...1 Nov 2021 Page 72 001200MAN 09 Electrical Box Layout R 45 75 265 277 1 60...

Страница 73: ...1 Nov 2021 Page 73 001200MAN 09 Electrical Box Layout R 80 265 277 1 60...

Страница 74: ...1 Nov 2021 Page 74 001200MAN 09 Electrical Box Layout RH 45 75 265 277 1 60...

Страница 75: ...1 Nov 2021 Page 75 001200MAN 09 Wiring Diagram 460 3 60...

Страница 76: ...1 Nov 2021 Page 76 001200MAN 09 Electrical Box Layout R 25 75 460 3 60...

Страница 77: ...1 Nov 2021 Page 77 001200MAN 09 Electrical Box Layout R 80 460 3 60...

Страница 78: ...1 Nov 2021 Page 78 001200MAN 09 Electrical Box Layout RH 25 75 460 3 60...

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Страница 81: ...1 Nov 2021 Page 81 001200MAN 09 Dimensions R 45 Left Return...

Страница 82: ...1 Nov 2021 Page 82 001200MAN 09 Dimensions R 45 Right Return...

Страница 83: ...1 Nov 2021 Page 83 001200MAN 09 Dimensions R 55 65 75 Left Return...

Страница 84: ...1 Nov 2021 Page 84 001200MAN 09 Dimensions R 55 65 75 Right Return...

Страница 85: ...1 Nov 2021 Page 85 001200MAN 09 Dimensions R 80 Left Return...

Страница 86: ...1 Nov 2021 Page 86 001200MAN 09 Dimensions R 80 Right Return...

Страница 87: ...1 Nov 2021 Page 87 001200MAN 09 Dimensions RH 45 Left Return...

Страница 88: ...1 Nov 2021 Page 88 001200MAN 09 Dimensions RH 45 Right Return...

Страница 89: ...1 Nov 2021 Page 89 001200MAN 09 Dimensions RH 55 65 75 Left Return...

Страница 90: ...1 Nov 2021 Page 90 001200MAN 09 Dimensions RH 55 65 75 Right Return...

Страница 91: ...iring or voltage conditions 7 Products subjected to accident misuse negligence abuse fire flood lightning unauthorized alteration misapplication contaminated or corrosive liquid or air supply operatio...

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