National Comfort Products NHPA 3000 Series Installation Manual Download Page 22 | Manualshive

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Installation Guide for NHPA Split-System Heat Pumps

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Summary of Contents for NHPA 3000 Series

Page 1: ...lation National Comfort Products A Division of National Refrigeration Air Conditioning Products Inc 539 Dunksferry Road Bensalem PA 19020 215 244 1400 1 800 523 7138 Fax 215 639 1674 HEATING A C EQUIP...

Page 2: ...Leak Checking Page 8 Evacuation Electrical Connections Page 9 High Voltage and Power Supply Page 10 Start Up Sequence of Operations Page 10 Refrigerant Charging Page 12 Maintenance Checkout Procedure...

Page 3: ...y grounded Failure to do so can cause electrical shock resulting in severe personal injury or death WARNING These instructions are intended as an aid to qualified licensed service personnel for proper...

Page 4: ...uctions do not cover all variations in systems or provide for every possible contingency to be met in connection with the installation Should further information be desired or should particular proble...

Page 5: ...ved by NCP to maintain unit performance and warranty Care must be taken to locate coil intake side of unit away from loose debris that may clog intake 7 If the unit is mounted behind a decorative gril...

Page 6: ...ted Isolate lines from all ductwork Minimize the number of 90 turns Maximum Allowable Liquid Line Pressure Drop 50 PSI Subtract 43 PSI for each foot of Liquid Lift if any Do Not Exceed this value when...

Page 7: ...he heat pump should not block access to major components Refrigerant lines should not be in direct contact with the floor or ceiling joists Use insulated or suspension type hangers When refrigerant li...

Page 8: ...valent length of refrigerant lines exceeds 50 ft Leak Checking Leak checking of refrigerant line braze joints and evaporator unit using dry nitrogen 1 Install service port cap of the vapor line servic...

Page 9: ...onnected Electrical Connections NOTE Make certain that the volts hertz and phase correspond to that specified on the unit rating plate and that the service provided by the utility is sufficient to han...

Page 10: ...l stop On a call for heating the room heat pump thermostat makes circuits R G and R Y Circuit R G energizes the indoor blower motor relay Circuit R Y energizes the contactor starting the compressor an...

Page 11: ...nder the coil must be piped per item number 12 under the Unit Location Considerations section of this manual System Charge Adjustment Temperature Measurements Check the outdoor temperatures Subcooling...

Page 12: ...Operation Compressor Damage Do not operate with a restricted suction Do not operate with the low pressure cut out bridged Do not operate compressor without enough system charge to maintain at least 0...

Page 13: ...ng for leaks and suction line insulation Improper insulation can cause condensate water damage 6 Pressure and temperature readings of high and low side of system should be checked for proper super hea...

Page 14: ...Reading between Terminals C R __________ 5 Compressor Winding OHM Reading between Terminals R S __________ 6 Compressor Winding OHM Reading between Terminals C Ground __________ 7 Compressor Winding O...

Page 15: ...Installation Guide for NHPA Split System Heat Pumps 15...

Page 16: ...00 19 000 ELECTRICAL 208 230 60 1 12 13 78 20 208 230 60 1 10 16 8 25 Volts Hertz Phase Min AWG Wire Min Cir Ampacity Max Fuse COMPRESSOR 9 0 56 3 10 9 62 9 RLA Amps LRA Amps FAN MOTOR 0 25 1500 1 4 0...

Page 17: ...5 HP 1500 RPM 14270049 14270049 10 14 Prop Fan 14214033 14214033 11 Motor Mount 14270102 14270102 12 Access Panel 3000 14256780 14256780 13 Top Panel 3000 14256303 14256303 14 Right Side Panel 1425631...

Page 18: ...ndard AHRI 270 2008 As an option we offer an Insulated Sound Cover for installation over the inside cover of the unit Sound Without Indoor Cover 70 4 dba Standard AHRI 350 2008 Sound With Indoor Cover...

Page 19: ...all other warranties express or implied arising by operation of law or otherwise including without limitation merchantability and fitness for a particular purpose whether or not the purpose or use has...

Page 20: ...ial number whichever occurs first then Customer may take the compressor to any Authorized Copeland Distributor for replacement of said compressor If the defect is reported to National Comfort after on...

Page 21: ...ta Limitations All installations should factor a proper building heat gain along with appropriate duct sizing and electrical supply wiring to be figured by a professional engineer familiar with local...

Page 22: ...____________________ ________________________________________________________________________ ________________________________________________________________________ _________________________________...

Page 23: ...____________________ ________________________________________________________________________ ________________________________________________________________________ _________________________________...

Page 24: ...Installation Guide NHPA Heat Pump 14299144 7 2016 National Comfort Products 539 Dunksferry Road Bensalem PA 19020 5908 800 523 7138 Fax 215 638 1674 HEATING A C EQUIPMENT NATIONAL COMFORT PRODUCTS...

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