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Rheem RA17 Series, Installation Instructions Manual

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Rheem RA17 Series Installation Instructions Manual Download Page 54

54

R

C

For Single-Phase Models

WIRING DIAGRAMS

Wiring Diagrams

Summary of Contents for RA17 Series

Page 1: ...ER INSTALLATION ADJUSTMENT AND OPERATION OF THIS UNIT READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALL...

Page 2: ...perature Sensor 22 UP and SELECT Buttons 22 Memory Card 22 EcoNet Communication System Control Wiring 22 EcoNet Communication System ICC Control 22 Condensing Units 23 Active Compressor Protection Mod...

Page 3: ...f the heat pump and may also endanger life and property The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized components accessories or devi...

Page 4: ...or concealed should be filed immediately with the shipping company Check model number electrical characteristics and accessories to determine if they are correct Check system components indoor coil ou...

Page 5: ...20 25 25 40 40 50 50 19 76 1 84 22 23 2 07 32 30 3 00 32 30 3 00 1 1 1 1 5133 2423 3540 1671 4251 2006 5133 2423 128 3629 151 4281 204 5783 223 6322 160 72 6 180 81 6 231 104 8 241 109 3 167 75 7 187...

Page 6: ...ant charge and proper airflow are critical to achieve rated capacity and efficiency Installation of this product should follow the manufacturer s refrigerant charging and airflow instructions Failure...

Page 7: ...ss 60 152 4 cm above fan discharge unit top to prevent recirculation 6 15 2 cm to coil grille air inlets with 12 30 5 cm minimum recommended Corrosive Environment The metal parts of this unit may be s...

Page 8: ...ering the unit Unit Mounting WARNING Secure an elevated unit and its elevating stand in order to prevent tipping Failure to do so may result in severe personal injury or death If installing a unit on...

Page 9: ...410A and air should never be mixed in tanks or supply lines or be allowed to accumulate in storage tanks Leak checking should never be done with a mixture of R 410A and air Leak checking can be perfor...

Page 10: ...vaporator specifically designed for R 410A Location Do not install the indoor coil in the return duct system of a gas or oil furnace Provide a service inlet to the coil for inspection and cleaning Kee...

Page 11: ...nit It is important not to allow the refrigerant to ash any superheated vapor prior to the expansion device of the indoor coil The ashing of refrigerant can occur for the following reasons ow refriger...

Page 12: ...rence the long line set section of the I O for detail Long Line Set Applications ong line set applications are de ned as ap plications that require accessories or alternate construction methods The fo...

Page 13: ...calculated equivalent length falls within the compatibility region of the chart erify Table 3 to verify the capacity di erence is compatible with the application Refrigerant Migration During Off Cycl...

Page 14: ...to have a long line set with the outdoor unit below the indoor unit the following is required at the IDunit ran case heater Start components may be required depending upon quality of voltage Inverted...

Page 15: ...of voltage Insulated liquid and suction line ollow the proper line si ing equivalent length charging requirements and oil level adjustments spelled out in this document and the outdoor units I O erif...

Page 16: ...16 N R Application not recommended INSTALLATION Table 2 Tubing...

Page 17: ...17 N R Application not recommended INSTALLATION Table 3 Tubing...

Page 18: ...an 410A system and the line set is not replaced drain any oil that has pooled in low spots in the lineset Commercially available flush kits are not recommended due to the risk of residual flushing age...

Page 19: ...ions Indoor coils have only a holding charge of dry nitrogen Keep all tube ends sealed until connections are to be made Use type copper refrigeration tubing ra e the connections with the following all...

Page 20: ...to purge lines or pressurize system for leak test Oxygen reacts violently with oil which can cause an explosion resulting in severe personal injury or death Pressurize line set and coil through servi...

Page 21: ...WARNING Solid red light indicates a thermostat call for unit operation is present at the ICC control ICC control will attempt to start unit after short cycle timer expires or when in Active Protection...

Page 22: ...d using traditional control wiriing reference Section 11 7 Conventional 24VAC Thermostat Control Wiring The EcoNet Communication System requires four 4 control wiring for unit operation R 24VAC C 24VA...

Page 23: ...dual 7 segment LEDs will flash c or while the short cycle timer is active and a command for unit operation is received The 3 minute time delay can be bypassed when a command for compressor operation...

Page 24: ...IMPORTANT This mode of active protection must be manually reset 2 High Pressure Control Lockout If the opens three 3 times during the same command for unit operation the ICC will lockout the compress...

Page 25: ...cuit s F THE MINUTE ANTI SHORT CYCLE TIMER OR SECOND MINIMUM RUN TIMER IS ACTIVE A FLASHING hCv OR h v IS DISPLAYED ON THE DUAL SEGMENT S AND A command for unit operation is present TEST mode causes h...

Page 26: ...tem has specific model data for this system The memory card is attached to the control box with a tether The tether has an identification tag that can be used to identify the memory card For the syste...

Page 27: ...ive anti short cycle timer or minimum run timer Wait unit timer has expired or press the TEST button to defeat short cycle delay Status Possible Cause Troubleshooting Information FLASHING FLASHING P P...

Page 28: ...or Open Start Circuit The ICC detects current in the Run circuit but not in the Start circuit of the compressor Check for damaged miswired or wrong run capacitor Check for broken wires loose connector...

Page 29: ...erature Fault The sensor detects an abnormally low or high coil temperature Replace the sensor Check sensor is installed correctly on control 84 Outdoor Ambient Temperature Fault The sensor detects an...

Page 30: ...RING REQUIRES A MINIMUM OF FOUR wires for proper unit operation R 24VAC C 24VAC common 9 n IRST STAGE OPERATION 9 n 3ECOND STAGE OPERATION SOLID COPPER WIRE AWG 3 0 16 14 12 10 10 10 2 5 16 14 12 12 1...

Page 31: ...TH DEHUMIDIFICATION W2 W1 C G HPN Air Handler Y1 Typical Two Stage Thermostat ARL Condensing Unit Y2 C R Y2 Field Installed Line Voltage WIRING INFORMATION Factory Standard ODD R Y1 Y2 G W2 R Y1 C L Y...

Page 32: ...ME DELAY CAN BE BYPASSED WHEN A call for compressor operation is present by pressing the TEST button for 1 second and releasing The compressor will begin operation and the dual 7 segment will stop fla...

Page 33: ...kout s 4HE WILL DISPLAY A FLASHING h v FOLLOWED BY A flashing 06 when an open start circuit condition occurs If the ICC detects current in the run circuit without current present in the start circuit...

Page 34: ...Test and Fault Recall Modes Fault Recall Mode UP and Select Buttons s NTER FAULT RECALL mode by pressing the UP and Select buttons at the same time with insulated probes FOR THREE SECONDS AND RELEASE...

Page 35: ...ng Electrical Wiring Grounding A grounding lug is provided near the contactor for a ground wire WARNING The unit must be permanently grounded Failure to do so can cause electrical shock resulting in s...

Page 36: ...L FURNACE FOR TYPICAL GAS OR OIL HEAT C Y G W R Y G W R TYPICAL THERMOSTAT SUBBASE TYPICAL GAS OR OIL FURNACE TYPICAL CONDENSING UNIT BR BROWN WIRE YL YELLOW WIRE X WIRE CONNECTION YL BR X X FOR TYPIC...

Page 37: ...d attached to the bottom of the control box Connect power wiring to line voltage lugs located in the outdoor unit electrical box See wiring diagram attached to unit access panel Check all electrical c...

Page 38: ...e This ensures a comfortable living space These simple mathematical formulas can be used to determine the CFM in a residential or light commercial system Electric resistance heaters can use CFM volts...

Page 39: ...se readings because of pressure drop through the fittings After adequate evacuation open both service valves by removing both brass service valve caps with an ad ustable wrench Insert a 3 16 5 mm or 5...

Page 40: ...ID Airflow and Coils Are Clean Confirm adequate indoor supply airflow prior to starting the system See the Technical Specification Sheet for rated airflow for each ID OD unit match Air filter s and c...

Page 41: ...perature ODDB _____ F _____ Unit charging is recommended under the following outdoor conditions ONLY ooling ode 55 12 outdoor dry bulb and above 3 Locate and note the design pressures The correct liqu...

Page 42: ...s from pressure ports then replace the pressure port caps and tighten adequately to seal caps Do not overtighten eplace the service valve caps finger tight and then tighten with an open end wrench ade...

Page 43: ...12 hours before the compressor is started Disconnect switch is on and wall thermostat is off Compressor Crankcase Heat CCH High and Low Pressure Controls HPC and LPC HPC and LPC are factory installed...

Page 44: ...This component senses compressor head pressure and shuts the heat pump fan off when the head pressure drops to approximately 250 PSIG This allows the unit to build a sufficient head pressure at lower...

Page 45: ...UnitWiringand Connections CompressorWinding Open Unit Running YES Repairand Recheck YES Repairand Recheck NO VoltageonCompressor SideofContactor NO YES RunCapacitor NO VoltageonLine SideofContactor NO...

Page 46: ...lve Closed Restricted Indoor Metering Device Restricted Filter Drier Dirty Outdoor Coil Inoperative Outdoor Fan Overcharge Recirculation of Outdoor Air Noncondensibles HigherThan Ambient Air Entering...

Page 47: ...Registers sweat ow indoor air ow Increase speed of blower or reduce restriction eplace air lter High head low vapor pressures estriction in liquid line expansion device or lter drier ad emove or repl...

Page 48: ...mer Have problem corrected before diagnosis continues Undersized wire feeding unit Correct and complete diagnosis High line voltage Power company problem Have problem corrected High head pressure Over...

Page 49: ...oad Allow time to reset Compressor windings Check for correct ohms Voltage present on line side of com pressor contactor only Thermostat Check for control voltage to contactor coil Compressor control...

Page 50: ...BLE CAUSE REMEDY Compressor failures Line tubing too large Reduce pipe size to improve oil return Low suction pressure Low charge Check system charge Refrigerant leaks Repair and recharge Cold noisy c...

Page 51: ...ize liquid line correctly Undersized EEV Replace with correct valve Incorrectly sensing vapor line temperature Verify suction thermistor resistance is correct and properly attached and insulated to th...

Page 52: ...se superheat Incorrectly sensing vapor line temperature Verify suction thermistor resistance is correct and properly attached and insulated to the vapor line Suction thermistor incorrectly calibrated...

Page 53: ...ulated Indoor Sensing Bulb High High Low Low High ELECTRONIC EXPANSION VALVES cont SYMPTOM POSSIBLE CAUSE REMEDY Superheat and suction pressure uctuate valve is hunting Oversized EEV Install correct E...

Page 54: ...54 R C For Single Phase Models WIRING DIAGRAMS Wiring Diagrams...

Page 55: ...55 WIRING DIAGRAMS Wiring Diagrams...

Page 56: ...56 NOTES...

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