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Q5RF SERIES 15 SEER
USER’s MANUAL & INSTALLATION INSTRUCTIONS
Single Package Heat Pump - 2 Stage, R-410A
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 Servicing Con
Forced Defrost Mode (Field Test) .............12 USER INFORMATION Anti Short Cycle Timer Test ......................12 About the Heat Pump ...................................3 Heating Mode ........................................12 Cooling Mode .........................................13 Operating Instructions ................................ 3 Cooling Operation ....................................3 Adjustment of Refrigerant Charge ............13 Heating Operation ........................
USER INFORMATION ABOUT THE HEAT PUMP minutes following a previous operation or the interruption of the main electrical power. Your heat pump is a unique, all weather comfort- control appliance that will heat and cool your Emergency Heat home year round and provide energy saving Some thermostats may include a system mode comfort. It’s an unknown fact that heat is always called EM HT or AUX HT, etc. This is a back- in the air, even when the outside temperature is up heating mode that should
INSTALLER INFORMATION GENERAL INFORMATION SAFETY INFORMATION Single packaged heat pumps are ready for easy and immediate installation and can be readily connected into the high static duct system of a WARNING: home. This unit is completely assembled, wired, The information listed below and run tested at the factory. This heat pump is designed for outdoor installation only. The must be followed during the only connections needed for installation are the installation, service, and operat
Air Duct System Air ducts must be installed in accordance with the standards of the National Fire Protection Elbow Association “Standard for Installation of Air Conditioning and Ventilation Systems” (NFPA 90A), “Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems” (NFPA 90B), these instructions, and all applicable codes. NFPA publications are avaialable by writing to: National Fire Protection Association, P-Trap Batterymarch Park, Quincy, ME 02269 o
14” Duct Dimples Transition Duct Screws 12" 24" 12" 0" Supply Air Return Air Figure 3. Minimum Unit Clearances Figure 4. Return and Supply Air Fittings Installing Return & Supply Air Fittings The supply and return ﬁ ttings are included with 2. Overlap the collar ends keeping the small the unit and located in the supply duct. They screw holes underneath. attach to the unit openings (Figure 4) with a ﬂ ange 3. Align the holes in the crimped area and install and bead arrangement and may be, se
NOTE: The return air box with grille and ﬁ lter Locating & Installing the Supply Damper(s) (Figure 6) should not be located in heavy trafﬁ c When locating the supply damper(s), carefully areas like hallways or center of rooms. A good check ﬂ oor joists and frame members that could spot is in a corner or under a table, if a minimum interfere with the installation of the damper or two inch clearance is available. ﬂ exible duct. Ideally, the damper (Figure 7) should be located in the bottom
ELECTRICAL CONNECTIONS � See the unit wiring label for proper high and low voltage wiring. Make all electrical connections in accordance with all applicable codes and WARNING: ordinances. To avoid electric shock, personal injury, or death, turn off the electric CAUTION: power at the disconnect or the main Label all wires prior to service panel before making any disconnection when servicing electrical connections. controls. Wiring errors can � Electrical connections must be in cause
Overcurrent Protection Overcurrent protection must be provided at the CAUTION: branch circuit distribution panel and sized as shown on the unit rating label and according to To avoid personal injury or applicable local codes. Generally, the best fuse property damage, make certain or breaker for any heat pump is the smallest that the motor leads cannot size that will permit the equipment to run under normal usage and provide maximum equipment come into contact with any metal protectio
Demand Defrost Control Electric Heat Package (optional) The demand defrost board controls the defrost This heat pump is shipped without an auxiliary cycle in response to ambient temperature, electric heat kit installed. If electric heat is desired, outdoor coil temperature and accumulated an accessory Heater Kit must be ﬁ eld installed. compressor run time. The heat pump is allowed to See Speciﬁ cations Sheet for available kits and operate in the heating mode until the combination their app
COND FAN COND FAN AMBIENT AMBIENT M AMBIENT AMBIENT M SENSOR AMBG SENSOR PRESS AMBG DEMAND PRESS DEMAND COILG DEFROST CONTROL COIL COILG DEFROST CONTROL COIL SW BOARD SENSOR SW COIL BOARD SENSOR COIL REV REV TEST W2 W2 TEST W2 W2 LR C Y O IN OUT LR C Y O IN OUT VALVE VALVE Outdoor Thermostat Y1 = 1st Stage Heat Pump (optional) Y2 = 2nd Stage Heat Pump W1 = 1st Stage Auxillary Heat Green (from blower relay) G W1 R Accessory C Heat Plug Y1 1 Brown O 2 Orange 3 E 4 Y2 5 6 Blower Relay 7 Compressor
STARTUP & ADJUSTMENTS temperature selector below the existing room temperature. Allow the cooling system to operate Pre-Start Checklist for several minutes and check for the discharge The following check list should be observed prior of cool air at the supply registers. to starting the unit. Is the unit level? Unit should be level or slightly Short Cycle Protection slanted toward the drain for proper condensate The control circuit is equipped with a time-delay drainage. feature for pro
Cooling Mode Charging an R-410A Unit in Heating Mode When the TEST pins are shorted together for 1. Evacuate the refrigerant system. more than 1 second, the Anti Short Cycle Timer 2. Weigh in the proper charge as shown on the will be bypassed. unit rating plate and use the Heating Charging Tables 2 & 3 (pages 16 & 17) as a guide. Tables Adjustment of Refrigerant Charge reﬂ ect conditions at high speed operation. Unit charge MUST be veriﬁ ed in cooling season. 3. Verify the unit is operat
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
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
16 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 (DEG. F) 0 102030405060 Suc. Liquid Disch. Suc. Liquid Disch
17 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 TEMPERATURE (DEG. F) 0 102030405060 Suc. Liquid Disch. Suc. Liquid Disch
Figure 15. Q5RF/PPH2RF Series Wiring Diagram - 2 & 3 Ton Units 18 3. Not sutiable on systems that exceed 150V to ground. WIRING DIAGRAM 4. For replacement wires use conductors suitable for 105°C. Q5RF/PPH2RF SERIES SMALL PACKAGE H/P W/DEMAND DEFROST 208/230V 60HZ/SINGLE PHASE 2 TON AND 3 TON 1. Couper le courant avant de faire letretine. NOTES: 2. Employez uniquement des conducteurs en cuiver. 1. Disconnect all power before servicing. SEE TABLE FOR FACTORY 3. Ne convient pas aux installations d
Figure 16. Q5RF/PPH2RF Series Wiring Diagram - 4 & 5 Ton Units 19 WIRING DIAGRAM 60HZ/SINGLE PHASE Q5RF/PPH2RF SERIES SMALL PACKAGE H/P W/DEMAND DEFROST 208/230V 4 TON AND 5 TON 1. Couper le courant avant de faire letretine. NOTES: 2. Employez uniquement des conducteurs en cuiver. 1. Disconnect all power before servicing. 3. Ne convient pas aux installations de plus de 150V a la terre. SEE TABLE FOR FACTORY 2. For supply connections use copper conductors only. SET BLOWER WIRING 3. Not sutiable o
COMPONENT FUNCTIONS High Pressure Switch The high pressure switch is factory installed Low Pressure Switch and located in the compressor discharge line The low pressure switch is factory installed and internal to the unit. The switch is designed to de- located in the suction line internal to the unit. The energize the system when very high pressures switch is designed to protect the compressor if a occur during abnormal conditions. Under normal loss of charge occurs. Under normal conditio
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