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INSTALLATION INSTRUCTIONS
AIR-COOLED CONDENSING UNITS
(-)ASL-JEC 18 SEER EQUIPPED WITH THE COMFORT CONTROL
SYSTEM™ AND FEATURING DUAL DRIVE COMPRESSORS IN
SELECT MODELS
!
WARNING
!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO
QUALIFIED, LICENSED SERVICE PERSONNEL FOR
PROPER 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 INSTALLATION, ADJUSTMENT, SERVICE OR
MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL
SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
[ ] INDICATES METRIC CONVERSIONS
Featuring Industry Standard
R-410A Refrigerant
ISO 9001:2008
SUPERSEDES 92-101691-05-11
2
92-101691-05-12
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Troubleshooting
Related Manuals for innovair -ASL-JEC 18 SEER
Summary of Contents for innovair -ASL-JEC 18 SEER
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Page 1: Installation Instructions
INSTALLATION INSTRUCTIONS AIR-COOLED CONDENSING UNITS (-)ASL-JEC 18 SEER EQUIPPED WITH THE COMFORT CONTROL SYSTEM™ AND FEATURING DUAL DRIVE COMPRESSORS IN SELECT MODELS Featuring Industry Standard R-410A Refrigerant WARNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT. -
Page 2: Table Of Contents
T BLE OF CONTENTS 1.0 SAFETY INFORMATION ..........3 2.0 GENERAL INFORMATION . -
Page 3: Safety Information
1.0 S FETY INFORM TION W RNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOL- LOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. - Page 4 C UTION R-410A systems operate at higher pressures than R-22 systems. Do not use R-22 service equipment or components on R-410A equipment. C UTION Only use evaporators approved for use on R-410A systems. Use of existing R-22 evaporators can introduce mineral oil to the R-410A refrigerant form- ing two different liquids and decreasing oil return to the compressor.
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Page 5: General Information
2.0 GENER L INFORM TION W RNING The (-)ASL-series of condensing units are designed to operate using the Comfort THE MANUFACTURER’S WAR- Control System™ or traditional 24VAC controls. These units are equipped with the RANTY DOES NOT COVER ANY Comfort Control . -
Page 6: Dimensions
2.3 DIMENSIONS UNIT MODEL NUMBER EXPLANATION FIGURE 1 DIMENSIONS AND (-)ASL – 036 J E C IR DISCH RGE AIR DISCHARGE INSTALLATION ALLOW 600 [1524 mm] CLEARANCE LLOW 60" [1524 mm] CLE R NCE EC = EQUIPPED WITH THE CLEARANCES COMFORT CONTROL SYSTEM™... -
Page 7: Proper Installation
2.5 PROPER INST LL TION Proper sizing and installation of this equipment is critical to achieve optimal perfor- mance. Use the information in this Installation Instruction Manual and reference the applicable Engineering Specification Sheet when installing this product. IMPORTANT: This product has been designed and manufactured to meet ENER- ®... -
Page 8: Operational Issues
3.3 Operational Issues • IMPORTANT: Locate the unit in a manner that will not prevent, impair or com- promise the performance of other equipment horizontally installed in proximity to the unit. Maintain all required minimum distances to gas and electric meters, dryer vents, exhaust and inlet openings. -
Page 9: Refrigerant Connections
FIGURE 2 RECOMMENDED ELEVATED INSTALLATION 4.0 REFRIGER NT CONNECTIONS All units are factory charged with Refrigerant 410A. All models are supplied with service valves. Keep tube ends sealed until connection is to be made to prevent system contamination. 4.1 Tools Required For Installing & Servicing R-410 Models Manifold Sets: -Up to 800 PSIG High side -Up to 250 PSIG Low Side... -
Page 10: Specifications Of R-410A
IMPORTANT: The Rheem approved/recommended method is a guide to securing equipment for wind and seismic loads. Other methods might provide the same result, but the Rheem method is the only one endorsed by Rheem for securing equipment where wind or earthquake damage can occur. Additional information is available in the PTS (Product Technical Support) section of the Rheem website Rheemote.net and can be found as a listing under each outdoor model. -
Page 11: Replacement Units
5.0 REPL CEMENT UNITS To prevent failure of a new condensing unit, the existing evaporator tubing system must be correctly sized and cleaned or replaced. Care must be exercised that the expansion device is not plugged. For new and replacement units, a liquid line filter drier should be installed and refrigerant tubing should be properly sized. -
Page 12: Maximum Length Of Lines
TABLE 2 VAPOR LINE CAPACITY MULTIPLIER (-)ASL 024/025 036/037 Unit Vapor Line 3/4” [19.05] I.D. 3/4” [19.05] I.D. 3/4” [19.05] I.D. 3/4” [19.05] I.D. 7/8” [22.23] I.D. Connection Size Sweat Sweat Sweat Sweat Sweat (inches I.D.) [mm] Vapor Line Diameter (inches O.D.) [mm] 5/8”... - Page 13 TABLE 3 (-)ASL LIQUID LINE SIZING LIQUID LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL Liquid Line Size Line Size Outdoor Unit Above Indoor Coil (Cooling Only - Does not apply to Heat Pumps) R-410A System Connection Line Size (Inch Capacity Model Size (Inch O.D.) [mm]...
- Page 14 TABLE 4 (-)ASL SUCTION LINE SIZING SUCTION LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL Suction Line Size Line Size R-410A System Connection Line Size (Inch Outdoor Unit ABOVE Indoor Coil (Cooling Only - Does not apply to Heat Pumps) Capacity Model Size (Inch O.D.) [mm]...
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Page 15: Tubing Connections
• For best operation, keep tubing run as short as possible with a minimum num- ber of elbows or bends. • Locations where the tubing will be exposed to mechanical damage should be avoided. If it is necessary to use such locations, the copper tubing should be housed to prevent damage. -
Page 16: Dual Drive Compressors
8.0 DU L DRIVE COMPRESSORS The -039, -048, & -060 condensing units contain two compressors to deliver maxi- mum efficiency and comfort. The Dual Drive Compressors are sized to increase run times at first stage operation (partial capacity). When additional capacity is needed, a two stage thermostat energizes both compressors to deliver full rated capacity. -
Page 17: Comfort Control System™ Control Operation
8.3 omfort ontrol System™ Control Operation A Dual Drive unit has two controls instead of a single control. The controls are the same as any residential communicating control except the secondary control dip- switches (SW5) should be in the off position. Therefore, the features such as fault recall and the operation of the test button are the same as any JEC control. -
Page 18: Evacuation Procedure
C UTION THE COMPRESSOR HAS AN INTERNAL OVERLOAD PROTECTOR. UNDER SOME CONDITIONS, IT CAN TAKE UP TO 2 HOURS FOR THIS OVERLOAD TO RESET. MAKE SURE OVERLOAD HAS HAD TIME TO RESET BEFORE CONDEMNING THE COMPRESSOR. 11.1 Evacuation Procedure Evacuation is the most important part of the entire service procedure. The life and efficiency of the equipment is dependent upon the thoroughness exercised by the serviceman when evacuating air and moisture from the system. - Page 19 • # 4 – 6 AWG 45 in/lbs # 8 AWG 40 in/lbs # 10 – 14 AWG 35 in/lbs (Check wire terminations annually) Compressor Control (K2) • Sealed single pole compressor relay switch with optical feedback feature (arc detection) Thermostat Connector (E2) •...
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Page 20: Diagnostic Codes In Dual Drive
12.2 omfort ontrol System™ Control Wiring An HVAC system equipped with Comfort Control System™ consists of: • Heat pump or condensing unit equipped with Comfort Control • Air handler or furnace equipped with Comfort Control • Comfort Control thermostat The four 18AWG low voltage control wires must be installed from the thermostat to the indoor unit and from indoor unit to the outdoor unit. -
Page 21: Icc Control Operation
12.4 omfort ontrol ICC Control Operation Installation Verification • 24V AC power on R&C must be present at the ICC for it to operate • Line voltage must be present at the ICC for the compressor and the outdoor fan to operate •... -
Page 22: Active Compressor Protection Mode
30 Second Minimum Run Timer • The ICC has a built in 30 second minimum unit run time. If a command for com- pressor operation is received by the ICC and the command is removed, the com- pressor will continue to operate for 30 seconds. The dual 7-segment LEDs will flash “c”... - Page 23 Active Protection – Code L4 – Locked rotor If the ICC detects the compressor has run less than 15 seconds before the pro- tector tripped for four (4) consecutive starts during the same command for unit operation, the ICC will lockout the compressor to keep it from continuing to oper- ate and flash a “L”...
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Page 24: Test And Fault Recall Modes
IMPORTANT: This mode of active protection must be manually reset. Exiting Active Compressor Protection Lockout Three are three methods to reset the ICC after an active protection lockout: 1) Cycle the line voltage to the unit 2) Cycle 24VAC to the ICC (remove the R or C connection to the ICC) 3) Push the TEST button down with an insulated probe for one (1) second and release Note: The ICC will attempt to start the unit when the TEST button is pressed... - Page 25 • A maximum of six individual faults can be stored • A maximum of three consecutive identical faults are stored. • A “0” will be displayed with no faults are stored • The ICC will automatically exit the FAULT RECALL mode after displaying stored faults Clear Fault History (TEST and SW2 Buttons) •...
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Page 26: Icc Diagnostic Codes
12.7 OMFORT ONTROL SYSTEM™ CONTROL WIRING CONVENTION L THERMOST T WIRING ICC DI GNOSTIC CODES ICC Diagnostic Codes Descriptions of the ICC diagnostic codes are provided below: Dual 7-Segment Status/Possible Cause – Troubleshooting LEDs Display Diagnostic Description Information Code 0 – Standby Normal operation No command for unit operation c - First Stage Cooling... - Page 27 Dual 7-Segment Status/Possible Cause – Troubleshooting LEDs Display Diagnostic Description Information Code 05 – Open circuit (Compressor will not • Check for damaged, miswired, or wrong run Run) capacitor • The ICC has received a command for • Check for broken wires, loose connectors, or unit operation but no current is present in miswired compressor the start and run circuits...
- Page 28 Dual 7-Segment Status/Possible Cause – Troubleshooting LEDs Display Diagnostic Description Information Code 28 – High Line Voltage Fault • Check line voltage 29 – High Pressure Control Open • Outdoor coil is dirty (cooling mode) • Outdoor fan is not running (cooling mode) The ICC detects the HPC is open •...
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Page 29: Conventional 24Vac Thermostat Control Wiring
12.8 Conventional 24V C Thermostat Control Wiring The (-)ASL series of heat pumps allow the installer to use conventional 24VAC con- trol wiring and a conventional thermostat for proper unit operation. IMPORTANT: The preferred method of unit installation and operation is by serial communications. -
Page 30: Typical Non-Communicating Thermostat Wiring Diagrams
12.9 Typical Non-Communicating Thermostat Wiring Diagrams WIRE COLOR CODE BK – BL CK G – GREEN PR – PURPLE Y – YELLOW The following figures show the typical wiring diagrams with (-)HPN air handler and (-)ARL con- BR – BROWN GY – GR Y R –... -
Page 31: Diagnostic Codes In Dual Drive Condensing Units With Conventional
12.10 Diagnostic Codes in Dual Drive Condensing Units With 12.10 Conventional Thermostat Wiring Each Comfort Control System™ Control Board maintains separate fault history for the compressor it controls. Fault codes are accessible by two methods: 1. Using a service tool plugged directly into the compressor Comfort Control board. -
Page 32: Active Compressor Protection Mode
Flashing upper case C A call for second stage cooling has be received • The 3-minute time 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 flashing. - Page 33 2) High Pressure Control Lockout • If the HPC opens three (3) times during the same call for unit operation, the ICC will lockout the compressor to keep it from continuing to operate and flash a L” on the dual 7-segment LEDs followed by a “29”. Active Protection –...
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Page 34: Test And Fault Recall Modes
Active Protection – Code L7 – Compressor open run circuit If the ICC detects current in the start circuit without current present in the run cir- cuit, , the ICC will lockout the compressor to keep it from continuing to operate and flash a “L”... -
Page 35: Electrical Wiring
Fault Recall Mode (TEST and SW2 Buttons) • Enter FAULT RECALL mode by pressing the TEST and SW2 buttons at the same time with insulated probes for one (1) second and release. • When entering and exiting FAULT RECALL mode the top and bottom segments of the dual 7-segment LEDs will illuminate. -
Page 36: Grounding
13.2 Grounding A grounding lug is provided near the contactor for a ground wire. W RNING THE UNIT MUST BE PERMANENTLY GROUNDED. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH. 13.3 Control Wiring If the low voltage control wiring is run in conduit with the power supply, Class I insu- lation is required. -
Page 37: Evacuation And Leak Testing
Gas furnaces can use: Output Capacity in BTUH* CFM = SHC x temp rise *Refer to furnace data plate for furnace output capacity. SHC = Sensible Heat Constant (see table below), an air velocity meter or airflow hood can give a more accurate reading of the system CFM. -
Page 38: Final Leak Testing
• After adequate evacuation, open both service valves by removing both brass ser- vice valve caps with an adjustable wrench. Insert a 3/16” [5 mm] or 5/16” [8 mm] hex wrench into the stem and turn counterclockwise until the wrench stops. •... -
Page 39: Charging Units With R-410A Refrigerant
NOTICE The optimum refrigerant charge for any outdoor unit matched with a CFL/CFM/H*L indoor coil/air handler is affected by the application. Therefore, charging data has been developed to assist the field technician in optimizing the charge for all mounting configurations (UF – Upflow, DF – downflow, LH –... -
Page 40: Charging By Weight
16.3 CH RGING BY WEIGHT NOTICE ADJUST THE SYSTEM CHARGE BY WEIGHT FOR THE STRAIGHT LENGTH OF THE REFRIGERANT LINE SET. For a new installation, evacuation of interconnecting tubing and indoor coil is adequate; otherwise, evacuate the entire system. Use the factory charge shown in “Electrical and Physical Data”... -
Page 41: Final Charge By Sub-Cooling
Step 3. Locate and note the design pressures. The correct liquid and vapor pressures are found at the intersection of the Installed system and the outdoor ambient temperature on the Charging Chart located on the inside of the control box cover of the outdoor unit. Liquid Pressure: = ______psig;... -
Page 42: Finishing Up Installation
TABLE 7 SATURATION R-410A SATURATION R-410A SATURATION R-410A SATURATION R-410A TEMP PSIG TEMP PSIG TEMP PSIG TEMP PSIG (Deg. F) (Deg. F) (Deg. F) (Deg. F) -150 17.9 107.5 317.4 -140 118.5 340.6 -130 26.4 130.2 365.1 -120 31.3 142.7 390.9 -110 36.5... -
Page 43: Comfort Control
NOTE: In diagnosing common faults in the cooling system, develop a logical thought pattern as used by experienced technicians. The charts which follow are not intended to be an answer to all problems but only to guide the technician’s trouble shooting. Through a series of yes and no answers, follow the logical path to a likely conclusion. - Page 44 FIGURE 11 When a control board requires replacement, it is important that the replacement board gets the shared data from the old control. The primary way the replacement control gets this information is by the memory card that should be installed on the old control.
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Page 45: Electrical Checks Flow Chart
18.3 Electrical Checks Flow Chart Thermostat call For cooling, no cooling Outdoor Unit Running? Refer to panel cover/documentation for Fault Code Troubleshooting. Check fault history for other faults. Check control voltage (R and C) 7-Segment display lit? to control No call received. Y1 LED lit? 24V Systems: Check thermostat, control wiring... -
Page 46: Cooling Mechanical Checks Flow Chart
18.4 Cooling Mechanical Checks Flow Chart Thermostat calling, but unit not cooling Electrical Chart Pressure problems? High Head Pressure Low Head Pressure Low Suction Pressure Dirty Outdoor Coil Low on Charge Dirty Filters Inoperative Outdoor Fan Open IPR Valve Dirty Indoor Coil Overcharge Low Ambient Temperature Inadequate Indoor Air Flow... -
Page 47: General Trouble Shooting Chart
18.5 General Trouble Shooting Chart WARNING DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY BREAK ONLY ONE SIDE. FAILURE TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH. SYMPTOM POSSIBLE CAUSE REMEDY Unit will not run •... -
Page 48: Service Analyzer Charts
18.6 Service nalyzer Charts COMPRESSOR OVERHEATING SYMPTOMS POSSIBLE CAUSE CHECK/REMEDIES High superheat Low charge Check system charge Faulty metering device Restricted cap tube, TEV (TXV) Power element superheat adjustment Foreign matter stopping flow High internal load Hot air (attic) entering return Heat source on;... - Page 49 SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Short cycling of compressor (cont.) Low charge Check system charge Low evaporator air flow Dirty coil Dirty filter Duct too small or restricted Faulty run capacitor Replace Faulty internal overload Replace compressor Faulty Compressor Valves Fast equalization/ Replace compressor and examine Low pressure difference...
- Page 50 LOSS OF LUBRICATION SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Compressor failures Line tubing too long Add oil to the recommended level 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 compressor - Slugging...
- Page 51 THERMOSTATIC EXPANSION VALVES SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES High Superheat, Low Suction Pressure Moisture freezing and blocking valve Recover charge, install filter-drier, evacuate system, recharge Dirt or foreign material blocking valve Recover charge, install filter-drier, evacuate system, recharge Low refrigerant charge Correct the charge Vapor bubbles in liquid line Remove restriction in liquid line...
- Page 52 THERMOSTATIC EXPANSION VALVES SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Superheat is low to normal Unequal evaporator circuit loading Ensure air flow is equally distributed with low suction pressure through evaporator Check for blocked distributor tubes Low load or airflow entering Ensure blower is moving proper air evaporator coil Remove/Correct any air flow...
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Page 53: Subcooling Calculation
18.7 Subcooling Calculation TABLE 8 TEMPERATURE PRESSURE CHART 1. Measure the liquid pressure at the liquid line service valve. TEMP R-410A 2. Convert the liquid line pressure to saturated temperature. See Table 9. (Deg. F) PSIG 3. Measure the liquid line temperature at the liquid line service valve. -150 —... -
Page 54: Wiring Diagrams
19.0 WIRING DI GR MS FIGURE 12 WIRING DIAGRAM FOR (-)ASL-024JEC/-025JEC/-036JEC & -03JEC... - Page 55 FIGURE 13 WIRING DIAGRAM FOR (-)ASL-039JEC, 048JEC, & 060JEC (DUAL DRIVE)
- Page 56 CM 0413...