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HP (Hewlett-Packard) N2H3 manual

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Table of contents for the manual

  • Page 1

    506 01 5001 00 May 2007 INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump Product Family: N2H3, H2H3 These instructions must be read and understood completely before attempting installation. DANGER, W ARNING, CAUTION, and NOTE The signal words DANGER, W ARNING, CAU‐ TION, and NOTE are used to identify levels of haz‐ ard seriousnes[...]

  • Page 2

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 2 506 01 5001 00 INSPECT NEW UNIT After uncrating unit, inspect thoroughly for hidden damage. If damage is found, notify the transportation company immediately and file a concealed damage claim. SAFETY CONSIDERA TIONS Consult a qualified installer , service agency , or the dealer/distr[...]

  • Page 3

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 3 Figure 1 Clearances (various examples) W all 6” 24” Service W all W all W all 6” 6” Post W all W all 18” 18” 18” 18” 6” 6” 6” 18” 18” 18” 18” 24” Service 24” Service 24” Service 24” Service 24” Service 24” Service 4” 4” wid[...]

  • Page 4

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 4 506 01 5001 00 UNIT SUPPORT NOTE: Unit must be level | 2 degrees ( a inch rise or fall per foot of run) or compressor may not function properly . A. GROUND LEVEL INST ALLA TION The unit must be level and supported above grade by beams, platform, or a pad. Platform or pad can be of op[...]

  • Page 5

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 5 ! CAUTION PRODUCT DAMAGE HAZARD Failure to follow this caution may result in product damage. Indoor coil and outdoor unit must be listed as a certified combination (match) in the ARI Unitary Directory of Certified Products. Indoor coil must have R-22 specific, hard shu[...]

  • Page 6

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 6 506 01 5001 00 C. ROUTING AND SUSPENDING REFRIGERANT LINES Run refrigerant lines as straight and direct as possible, avoiding unnecessary bends and turns. Always insulate the entire suction line. Both lines should be insulated when routed through an attic or when routed through an un[...]

  • Page 7

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 7 Figure 7 Liquid Line Filter-Drier Installed at Indoor Coil 38-1 1-84 Filter-Drier F . SERVICE V AL VES Service valves are closed and plugged from the factory . Outdoor units are shipped with a refrigerant charge sealed i n the unit. Leave the service valves closed unti[...]

  • Page 8

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 8 506 01 5001 00 H. EV ACUA TING LINE SET AND INDOOR COIL The unit is shipped with a factory refrigerant charge. The liquid line and suction line service valves have been closed after final testing at the factory . Do not disturb these valves until the line set and indoor coil have bee[...]

  • Page 9

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 9 NOTE: These are not back-seating valves. It is not necessary to force the stem tightly against the rolled lip. The service valve cap is a primary seal for the valve and must be properly tightened to prevent leaks. Make sure cap is clean and apply refrigerant oil to thr[...]

  • Page 10

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 10 506 01 5001 00 Thermostat Wiring Connections Route thermostat wiring through rubber grommet in bottom of Control Box. Low voltage lead wires are provided in the control box for connection to thermostat wires (use wire nuts). Refer to Wiring Diagram on unit and Figure 13 for low volt[...]

  • Page 11

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 11 DEFROST SYSTEM A. DEFROST THERMOST A T The defrost thermostat is factory installed on a short tube stub extending from the coil end plate. Refer to Figure 14 and confirm that the thermostat is securely fastened in place on the tube stub. Figure 14 Defrost Thermostat F[...]

  • Page 12

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 12 506 01 5001 00 ST ART-UP PROCEDURE 1. Set indoor thermostat selector switch to OFF . 2. T urn ON all electrical disconnect devices. 3. I f unit has a crankcase heater , energize the heater and wait 24 hours before proceeding. 4. Set indoor thermostat at desired temperature. Be sure [...]

  • Page 13

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 13 Figure 16 R-22 Required Liquid Line T emperature ( ° F) - Cooling Mode Measured Liquid Pressure (psig) Rating Plate (required) Subcooling T emperature ( ° F) Measured Liquid Pressure (psig) Rating Plate (required) Subcooling T emperature ( ° F) 5 10 15 20 5 10 15 2[...]

  • Page 14

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 14 506 01 5001 00 TROUBLESHOOTING Some models are factory equipped with the Comfort Alert t Diagnostics device in the control box (refer to Figure 17). Comfort Alert provides around-the-clock monitoring for common electrical problems, compressor defects, and broad system faults. If tro[...]

  • Page 15

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 506 01 5001 00 15 Figure 18 Comfort Alert t Diagnostics (some models) Status LED Status LED Description Status LED T roubleshooting Information Green “POWER” Module has power Supply voltage is present at module terminals Red “TRIP” LED On Solid Thermostat demand signal Y1 is pr[...]

  • Page 16

    INST ALLA TION INSTRUCTIONS 3-phase R-22 Split System Heat Pump 16 506 01 5001 00 Figure 19 Comfort Alert t Diagnostics (some models) Miswired Module Indication T roubleshooting Information Green LED is not on, module does not power up Determine if both R and C module terminals are connected. V erify voltage is present at module' s R and C ter[...]