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11-May-2021

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002512MAN-01

Maritime Geothermal Ltd.

P.O. Box 2555, 170 Plantation Road

Petitcodiac, NB E4Z 6H4

(506) 756-8135

R/RH-Series

Liquid to Air

Heat Pumps

Single-Stage R410a

Model Sizes 09-24

[email protected]

www.nordicghp.com

002512MAN-01

11-May-2021

Installation and Service Manual

Содержание R-09

Страница 1: ...ermal Ltd P O Box 2555 170 Plantation Road Petitcodiac NB E4Z 6H4 506 756 8135 R RH Series Liquid to Air Heat Pumps Single Stage R410a Model Sizes 09 24 info nordicghp com www nordicghp com 002512MAN...

Страница 2: ...s serviced A fire extinguisher and proper ventilation should be present whenever brazing is performed CAUTION Venting refrigerant to atmosphere is illegal A proper refrigerant recovery system must be...

Страница 3: ...SDELT SDERT 02 03 R 24 HAC P 1 L C Z SDELT SDERT 02 03 RH 09 HAC P 1 3 L C Z SDELT SDERT 03 04 05 RH 12 HAC P 1 3 L C Z SDELT SDERT 03 04 05 RH 18 HAC P 1 3 L C Z SDELT SDERT 04 05 RH 24 HAC P 1 L C...

Страница 4: ...Pump Module Installation 21 002336PDG Pump Module Inst 2 Units on 1 Loop 22 Open Loop Installations 23 Well Water Temperature 23 Well Water Flow 23 Well Water Quality 23 Water Discharge Methods 23 Wa...

Страница 5: ...Capacity Ratings Ground Water Cooling 60Hz 43 Table 22 Electrical Specifications 47 Table 23 Plenum Heater Electrical Specifications 47 Figure 1 Ground Loop Accessories Tools 16 Figure 2 Open Loop Acc...

Страница 6: ...enging water applications check with factory A single thermostatic expansion valve TXV regulates superheat The cabinet is constructed from galvanized sheet metal partly powder coated 1 Heating Mode In...

Страница 7: ...acity Ratings rather than detailed performance tables can be used for simplicity For 100 heat pump sizing choose a heat pump with a standard capacity rating that matches or just slightly exceeds the c...

Страница 8: ...ill of Materials Open Building Loop Installations FROM MARITIME GEOTHERMAL R RH SERIES HEAT PUMP L OR R RETURN PLENUM HEATER 5 7kW 2H 1C THERMOSTAT OR SOURCED ELSEWHERE P T PORTS AND HOSE ADAPTERS 2 D...

Страница 9: ...und wire 6 Install the blower and secure panel with the screws 7 Install the adjacent access panel and secure with the remaining screws Note for both R and RH units for blower motor servicing the enti...

Страница 10: ...ce the transformer IMPORTANT NOTE For 208 230VAC 1 60 units if connecting to 208VAC power supply move the red wire connected to the 240 ter minal of the transformer to the 208 terminal of the transfor...

Страница 11: ...the 24vac transformer A fault will occur if a conden sate overflow is detected or a low voltage condition electricity grid brownout is detected The control board has an on board LED and an ALR pin wi...

Страница 12: ...n external trap and vent must be installed An external condensate pump may be installed if there is not sufficient drain piping slope possible to drain condensate under gravity to its destination To a...

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Страница 14: ...Grill Layout Most forced air heating systems have the floor grills placed around the perimeter of the room Supply grills should be placed under a window when possible to help prevent conden sation on...

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Страница 16: ...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 17: ...n be calcu lated in a spreadsheet using the pipe manufacturer s pressure drop tables for pipe diameter and fittings The circulator pump module must be connected to the heat pump Outdoor Loop ports wit...

Страница 18: ...utions have been employed in geothermal systems the alcohols such as methanol or ethanol have the most desirable characteristics for groundloop applications The overall heat transfer characteristics o...

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Страница 23: ...stream ENSURE SELECTED METHOD CONFORMS TO LOCAL REGULATIONS A return well should be a minimum of 80 ft from the supply well for residential applications The water returned to the well will not necessa...

Страница 24: ...pump This reduces the back pressure generated by the weight of the water in the pond Water Valve Water flow through the heat pump is turned on and off by a water valve which is controlled by a 24VAC...

Страница 25: ...ld be to install a variable speed submersible pump which varies its speed to maintain a con stant water system pressure Or use a mechanical cycle stop valve which is installed upstream of the air blad...

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Страница 27: ...and all the air has been purged as much as possible Further purging may be required after the system has been operating for a while 3 Verify that the loop contains the proper mix of antifreeze for th...

Страница 28: ...op Out Supply Out temperature 8 Outdoor Delta T should be between 5 8 F 3 4 C 9 Outdoor flow if available 10 Compressor L1 C current black wire place meter between electrical box and compressor 4 Adju...

Страница 29: ...ect 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 and...

Страница 30: ...the heat exchanger ports and flush the exchanger for several minutes STEP 7 Return the plumbing to its original configuration and open the IN and OUT valves Operate the system and check for improved...

Страница 31: ...stat to call for heating or cooling depending on the season STEP 3 If a 24VAC signal does not appear across Y and C of the terminal strip within 6 minutes proceed to the THERMOSTAT TROUBLESHOOTING sec...

Страница 32: ...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 33: ...Remove wires from compressor Ohmmeter shows infinite resistance between any two terminals Note Be sure compressor overload has had a chance to reset If compressor is hot this may take several hours Re...

Страница 34: ...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 tempe...

Страница 35: ...its Backflush the coaxial exchanger with a calcium removing cleaning solution OPERATION TROUBLESHOOTING HEATING MODE Fault Possible Cause Verification Recommended Action High Suction Pressure may appe...

Страница 36: ...r 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 37: ...obes in connector where wire is inserted do not unplug the connect or Recirculation red pin 1 SP1 orange pin 2 SP2 blue pin 3 SP3 brown pin 4 SP4 grey pin 5 If proper signal isn t present re place Fan...

Страница 38: ...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 39: ...ontinuously for 2 hours Pump down the unit and replace the filter dryer Vacuum the unit as per above procedure b Charge the unit refrigerant can be re used and operate it for 2 3 days Perform an acid...

Страница 40: ...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 duct Heating Minimum EAT 60 16 Reduce air flow if nec...

Страница 41: ...Drop Data R 18 RH 18 2 5 0 16 0 8 5 5 0 8 5 5 0 9 6 2 1 4 9 7 3 0 19 1 0 6 9 1 1 7 6 1 2 8 3 1 9 13 3 5 0 22 1 4 9 7 1 5 10 1 7 12 2 3 16 4 0 25 1 7 12 1 8 12 2 0 14 2 6 18 4 5 0 28 2 1 15 2 3 16 2 6...

Страница 42: ...600 3 9 22 7 6 64 18 1 5 4 5 0 28 3 2 22 1 650 307 935 19 900 5 8 21 4 6 26 24 2 8 0 0 50 4 3 29 7 800 380 931 23 600 6 9 19 6 5 75 Table 19 Standard Capacity Ratings Ground Water Heating 60Hz EAT 68...

Страница 43: ...38 4 12 474 5 04 Fan W 82 82 82 82 82 82 82 82 HEATING COOLING OUTDOOR LOOP ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej W Compressor Current A Input Power W EAT C Evap Temp Airflow L...

Страница 44: ...7 16 689 4 94 Fan W 104 104 104 104 104 104 104 104 HEATING COOLING OUTDOOR LOOP ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej W Compressor Current A Input Power W EAT C Evap Temp Airfl...

Страница 45: ...35 1 22 805 4 91 Fan W 135 135 135 135 135 135 135 135 HEATING COOLING OUTDOOR LOOP ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej W Compressor Current A Input Power W EAT C Evap Temp A...

Страница 46: ...8 31 015 4 24 Fan W 256 256 256 256 256 256 256 256 HEATING COOLING OUTDOOR LOOP ELECTRICAL ELT C Cond Temp Flow L s LLT C Delta T C Heat Rej W Compressor Current A Input Power W EAT C Evap Temp Airf...

Страница 47: ...ons TABLE 22 Elec Code Power Supply Compressor Fan Out door Circ FLA MCA Max Fuse Breaker Min Wire Size V Hz MIN MAX RLA LRA RLA Max A Amps Amps Amps ga R RH 09 1 208 230 1 60 187 253 4 4 20 2 8 1 5 8...

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Страница 52: ...11 May 2021 Page 52 002512MAN 01 Dimensions R 09 12 Left Return...

Страница 53: ...11 May 2021 Page 53 002512MAN 01 Dimensions R 09 12 Right Return...

Страница 54: ...11 May 2021 Page 54 002512MAN 01 Dimensions R 18 24 Left Return...

Страница 55: ...11 May 2021 Page 55 002512MAN 01 Dimensions R 18 24 Right Return...

Страница 56: ...11 May 2021 Page 56 002512MAN 01 Dimensions RH 09 12 Left Return...

Страница 57: ...11 May 2021 Page 57 002512MAN 01 Dimensions RH 09 12 Right Return...

Страница 58: ...11 May 2021 Page 58 002512MAN 01 Dimensions RH 18 24 Left Return...

Страница 59: ...11 May 2021 Page 59 002512MAN 01 Dimensions RH 18 24 Right Return...

Страница 60: ...hed and insulated structure Startup of the unit shall not be scheduled prior to completion of construction and final duct installation for validation of this warranty 4 It is the customer s responsibi...

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