Summary of the content on the page No. 1
USER’s MANUAL & INSTALLATION INSTRUCTIONS
2 Stage R-410A Single Package Heat Pump
15 SEER
IMPORTANT
Please read this information thoroughly and become familiar with the capabilities
and use of your appliance before attempting to operate or maintain this unit.
Keep this literature where you have easy access to it in the future. If a problem
occurs, check the instructions and follow recommendations given. If these
suggestions don’t eliminate your problem, call your NORDYNE Servicing
Contracto
Summary of the content on the page No. 2
SAFETY INFORMATION ...............................3 Defrost Cycle Control ................................9 Ambient Sensor Mounting .......................11 USER INFORMATION ...................................3 Electric Heat Package .............................11 About the Heat pump ................................3 Operating Instructions ...............................3 SYSTEM OPERATION .................................12 Cooling Operation ...................................3 Pre - Star
Summary of the content on the page No. 3
SAFETY INFORMATION Operating Instructions IMPORTANT: Please read all instructions before Cooling Operation servicing this equipment. Pay attention to all 1. Set the thermostat’s system mode to COOL safety warnings and any other special notes or AUTO and change the fan mode to AUTO. highlighted in the manual. Safety markings See Figure 1 are used frequently throughout this manual to 2. Set the temperature selector to the desired designate a degree or level of seriousness and temperature leve
Summary of the content on the page No. 4
At the beginning of the defrost cycle, both the outdoor condenser fan and compressor will CAUTION: turn off. After approximately 30 seconds, the compressor will turn on and begin to heat the This unit uses refrigerant R-410A. DO NOT outdoor coil causing the ice and snow to melt. under any circumstances use any other NOTE: While the ice and snow is melting, some refrigerant in this unit. Use of another steam may rise from the outdoor unit as the warm refrigerant will damage the unit. coil
Summary of the content on the page No. 5
HEAT PUMP INSTALLATION 6 ft. Locating the Heat pump 24" � Select a solid, level position, preferably on a concrete slab, slightly above the grade level, and parallel to the home. DO NOT PLACE UNIT UNDER THE HOME. � The hot condenser air must be discharged up and away from the home, and if possible, in a direction with the prevailing wind. � Do not place the unit in a confi ned space. � If practical, place the heat pump and its ducts 12" in an area where they will be shaded from the afterno
Summary of the content on the page No. 6
14” Duct Dimples Transition Duct Screws INSTALLING RETURN AND LOCATING AND INSTALLING THE SUPPLY AIR FITTINGS RETURN AIR ASSEMBLY To simplify installation, locate and install the The supply and return fi ttings are included with return air assembly fi rst. If desired, the return the unit and located in the supply duct. They opening can be located inside a closet with attach to the unit openings (Figure 4) with a louvered doors that has an open area equal to fl ange and bead arrangement and
Summary of the content on the page No. 7
LOCATING AND INSTALLING THE DUCTING SYSTEM SUPPLY DAMPER(S) Air ducts should be installed in accordance with the standards of the National Fire Protection When locating the supply damper(s), carefully Association “Standard for Installation of Air check fl oor joists and frame members that could Conditioning and Ventilation Systems” (NFPA interfere with the installation of the damper or fl exible duct. Ideally, the damper (Figure 6) should 90A), “Standard for Installation of Residence Type
Summary of the content on the page No. 8
Note: For highly resistive duct systems it may be 2. Locate the orange, black and red wires necessary to add an additional return air duct and terminated to the blower motor. The orange or supply to achieve maximum performance and wire controls the low speed cooling and heating prevent coil icing and refrigerant fl ood back. operations, the black wire controls high speed cooling and heating operations and the red Connecting the Return and Supply Air wire controls the electric heating operat
Summary of the content on the page No. 9
Low Pressure Switch The low pressure switch is factory installed and located in the suction line internal to the unit. The switch is designed to protect the compressor if a loss of charge occurs. Under normal conditions, the switch is closed. If the suction pressure falls below 5 psig, then the switch will open and de-energize the unit. The switch will close again once the suction pressure High Voltage increases above 20 psig. The low pressure Low Voltage switch interrupts the thermosta
Summary of the content on the page No. 10
Y2 Y DF DF2 out out out YR C Y2 L in Green (from Blower Relay) R W2 O Y1 Y2 G C 1 Brown 2 Orange E 3 4 5 L 6 7 8 9 INDOOR DEFROST Accessory Heat Plug THERMOSTAT BOARD SUB-BASE Figure 9. Typical Wiring (Field Supplied) for 2-Stage Cool, 2 Stage Electric Heat Air Flow Model Q5RF Wire Color/Speed Tap Motor Speed (@ 0.3 in WC) T1 Low 560 Orange/T2 Medium/Low* 600 Black/T3 Medium** 800 X24K Red/T4 Medium/High*** 1,040 T5 High 1,250 Orange/T1 Low* 600 T2 Medium/Low 750 X36K Black/T3 Medium** 1,200 Red
Summary of the content on the page No. 11
Control is uncalibrated when power is applied. 6. Install one spacer next between the Calibration occurs after a defrost cycle. The plastic clip and mounting bracket. control initiates defrost after 34 minutes of 7. Bend the mounting bracket into position. accumulated compressor run time in heating Install the mounting bracket to the unit with coil temperature below 35° F. The defrost using the screw in the corner panel. cycle terminates when the coil sensor reaches termination temperature
Summary of the content on the page No. 12
SYSTEM OPERATION setting until the whole system de-energizes. Immediately lower the thermostat temperature Pre-Start Checklist to the original setting and verify that the indoor The following check list should be observed prior blower is energized. After approximately 3 to starting the unit. minutes the compressor and the outdoor fan Is the unit level? Unit should be level or slightly will energize. slanted toward the drain for proper condensate drainage. Emergency Heat Is the unit
Summary of the content on the page No. 13
Anti Short Cycle Timer Test determined in step 4, then there is too much charge in the system. Remove refrigerant and The 3 minute time delay feature can be bypassed repeat steps 1 through 3 until the system is by shorting the “TEST” pins together. correctly charged. Heating Mode � If the pressure measured in step 1 is less When the “TEST” pins are shorted together than the required liquid refrigerant pressure for more than 1 second, the control will switch determined in step 4, then ther
Summary of the content on the page No. 14
Refrigerant Charging Charts for Cooling Mode of Operation Q5RF-X24K CHARGING CHART 600 575 550 525 500 Remove refrigerant when above curve 475 450 425 400 375 350 325 Add refrigerant when below curve 300 275 250 225 200 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 LIQUID TEMPERATURE (F) Figure 11. Charging Chart for 2 ton Units Q5RF-X36K CHARGING CHART 600 575 550 525 500 Remove refrigerant when above curve 475 450 425 400 375 350 325 Add refrigerant when below curve 300 275 250 225 200
Summary of the content on the page No. 15
Refrigerant Charging Charts for Cooling Mode of Operation - Continued Q5RF-X48K CHARGING CHART 600 575 550 525 500 Remove refrigerant when above curve 475 450 425 400 375 350 325 Add refrigerant when below curve 300 275 250 225 200 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 LIQUID TEMPERATURE (F) Figure 13. Charging Chart for 4 ton Units Q5RF-X60K COOLING CHARGING CHART 600 575 550 525 500 Remove refrigerant when above curve 475 450 425 400 375 350 325 Add refrigerant when below curve
Summary of the content on the page No. 16
16 Refrigerant Charging Tables for Heating Mode of Operation Refrigerant Charging Chart Legend for Heating Mode of Operation: Shaded boxes indicate fl ooded conditions. Rated design values. The suction pressure will vary from design value if outdoor air fl ow, entering dry bulb, or entering wet bulb temperatures vary. 1. All pressures are listed psig and all temperatures in °F 2. Discharge temperatures greater than charted values indicate an undercharged system. Q5RF-X24K OUTDOOR TEMPERATURE (D
Summary of the content on the page No. 17
17 Refrigerant Charging Tables for Heating Mode of Operation - (continued) Refrigerant Charging Chart Legend for Heating Mode of Operation: Shaded boxes indicate fl ooded conditions. Rated design values. The suction pressure will vary from design value if outdoor air fl ow, entering dry bulb, or entering wet bulb temperatures vary. 1. All pressures are listed psig and all temperatures in °F 2. Discharge temperatures greater than charted values indicate an undercharged system. Q5RF-X48K OUTDOOR
Summary of the content on the page No. 18
Figure 15. Q5RF/PPH2RF Series Wiring Diagram - 2 & 3 Ton Units 18 3. Not sutiable on systems that exceed 150V to ground. 4. For replacement wires use conductors suitable for 105°C. WIRING DIAGRAM Q5RF/PPH2RF SERIES SMALL PACKAGE H/P 208/230 VOLT 60HZ/SINGLE PHASE 2 TON AND 3 TON 5. Couper le courant avant de faire letretine. BLOWER 6. Employez uniquement des conducteurs NOTES: SEE TABLE FOR FACTORY MOTOR en cuiver. SET BLOWER WIRING 1. Disconnect all power before servicing. 7. Ne convient p
Summary of the content on the page No. 19
Figure 16. Q5RF/PPH2RF Series Wiring Diagram - 4 & 5 Ton Units 19 WIRING DIAGRAM Q5RF/PPH2RF SERIES SMALL PACKAGE H/P 208/230 VOLT 60HZ/SINGLE PHASE 7. Couper le courant avant de faire letretine. 4 TON AND 5 TON 8. Employez uniquement des conducteurs NOTES: BLOWER en cuiver. SEE TABLE FOR FACTORY 1. Disconnect all power before servicing. MOTOR SET BLOWER WIRING 9. Ne convient pas aux installations de plus 2. For supply connections use copper conductors only. HIGH SPEED de 150V a la terre
Summary of the content on the page No. 20
INSTALLER PLEASE LEAVE THESE INSTALLATION INSTRUCTIONS WITH THE HOMEOWNER. 709064B (Replaces 709064A) Specifi cations and illustrations ¢709064-¤ subject to change without notice or incurring obligations. O’Fallon, MO 709064B Printed in U.S.A. (09/09)
