INSTALLATION INSTRUCTIONS AIR-COOLED CONDENSING UNITS (-)ASL-JEC 18 SEER EQUIPPED WITH THE COMFORT CONTROL2 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. READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION.
TABLE OF CONTENTS 1.0 SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.0 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Checking Product Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Dimensions . . . . . . . . . . . . . . . . .
1.0 SAFETY INFORMATION ! 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.
! CAUTION R-410A systems operate at higher pressures than R-22 systems. Do not use R-22 service equipment or components on R-410A equipment. ! CAUTION 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 forming two different liquids and decreasing oil return to the compressor. This can result in compressor failure.
! WARNING THE MANUFACTURER’S WARRANTY DOES NOT COVER ANY DAMAGE OR DEFECT TO THE AIR CONDITIONER CAUSED BY THE ATTACHMENT OR USE OF ANY COMPONENTS. ACCESSORIES OR DEVICES (OTHER THAN THOSE AUTHORIZED BY THE MANUFACTURER) INTO, ONTO OR IN CONJUNCTION WITH THE AIR CONDITIONER. YOU SHOULD BE AWARE THAT THE USE OF UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES MAY ADVERSELY AFFECT THE OPERATION OF THE AIR CONDITIONER AND MAY ALSO ENDANGER LIFE AND PROPERTY.
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2.5 PROPER INSTALLATION Proper sizing and installation of this equipment is critical to achieve optimal performance. 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 ENERGY STAR® criteria for energy efficiency when matched with appropriate coil components.
3.3 Operational Issues • • • • IMPORTANT: Locate the unit in a manner that will not prevent, impair or compromise 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. In the absence of National Codes, or manufacturers’ recommendations, local code recommendations and requirements will take precedence.
FIGURE 2 RECOMMENDED ELEVATED INSTALLATION 4.0 REFRIGERANT 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.
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.
5.0 REPLACEMENT 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. Test the oil for acid. If positive, a suction line filter drier is mandatory.
TABLE 3 VAPOR LINE CAPACITY MULTIPLIER (-)ASL Unit Vapor Line Connection Size (inches I.D.) [mm] 024 036 039 048 060 3/4” [19.05] I.D. Sweat 3/4” [19.05] I.D. Sweat 3/4” [19.05] I.D. Sweat 3/4” [19.05] I.D. Sweat 7/8” [22.23] I.D. Sweat Vapor Line Diameter (inches O.D.) [mm] Vapor Line Run Feet [m] 25‘ [7.62] 50’ [15.24] 75’ [22.86] 100’ [30.48] 125’ [38.10] 150’ [45.72] Opt. Std. Opt. Std. Opt. Std. Opt. Std. Opt. Std. Opt. Std. 5/8” [15.88] Optional 5/8” [15.88] Optional 5/8” [15.
TABLE 4 (-)ASL LIQUID LINE SIZING LIQUID LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL R-410A System Capacity Model Line Size Connection Size (Inch I.D.) [mm] -024 3/8” [9.53] -036 3/8” [9.53] -039 3/8” [9.53] -048 3/8” [9.53] -060 3/8” [9.53] Line Size (Inch O.D.) [mm] Liquid Line Size Outdoor Unit Above Indoor Coil (Cooling Only - Does not apply to Heat Pumps) Total Equivalent Length - Feet [m] 25 [7.62] 50 [15.24] 75 [22.86] 100 [30.48] 125 [38.1] 150 [45.
TABLE 5 (-)ASL SUCTION LINE SIZING SUCTION LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL R-410A System Capacity Model Line Size Connection Size (Inch I.D.) [mm] -024 3/4” [19.05] -036 & -039 3/4” [19.05] -048 7/8” [22.22] -060 7/8” [22.22] Line Size (Inch O.D.) [mm] 5/8” [15.88] 3/4” [19.05]* 7/8” [22.23] 5/8” [15.88] 3/4” [19.05]* 7/8” [22.23] 5/8” [15.88] 3/4” [19.05]* 7/8” [22.23] 3/4” [19.05] 7/8” [22.23]* 1-1/8” [28.
• • • • • • • For best operation, keep tubing run as short as possible with a minimum number 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. If tubing is to be run underground, it must be run in a sealed watertight chase. Use care in routing tubing and do not kink or twist. Use a good tubing bender on the vapor line to prevent kinking.
8.0 DUAL DRIVE COMPRESSORS The -039, -048, & -060 condensing units contain two compressors to deliver maximum 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. 8.1 Compressor Identification The individual compressors are identified as Compressor A and Compressor B.
8.3 Comfort Control 2 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 dipswitches (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. The two controls are identical and interchangeable, but the memory cards that attach to the controls are not interchangeable.
! CAUTION 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.
Compressor Control (K2) • Sealed single pole compressor relay switch with optical feedback feature (arc detection) Thermostat Connector (E2) • • • • R – 24VAC from the indoor unit 24VAC transformer (40 VA minimum) C – 24VAC Common from the indoor unit 24VAC transformer 1-Data: System Communications Line 1 2-Data: System Communications Line 2 Low Volt Fuse • If required replace with 3 A automotive ATC style blade fuse Low Pressure Control (LPC Input) COMFORT CONTROL2 SYSTEM™ CONTROL WIRING • Low-pres
12.2 Comfort Control 2 System™ Control Wiring COMFORT CONTROL2 SYSTEM™ CONTROL WIRING An HVAC system equipped with Comfort Control 2 System™ consists of: • Heat pump or condensing unit equipped with Comfort Control 2 • Air handler or furnace equipped with Comfort Control 2 • Comfort Control 2 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.
13.X Serial Communication ICC Control Operation 12.4 Comfort Control 2 ICC Control Operation Installation Verification In s t al l at i o n Ver i f i c at i o n • 24V AC power be present the ICC forICC it to • 24Von ACR&C powermust on R&C must be at present at the foroperate it to operate • Line voltage mustvoltage be present at present the ICCatfor and the outdoor fan fan to operate • Line must be thethe ICCcompressor for the compressor and the outdoor to operate • The ICC displays a “0” for standby mode.
30 Sec o n d Mi n i m u m Ru n Ti m er • The ICC has a built in 30 second minimum unit run time. If a command for compressor operation is received by the ICC and the command is removed, the compressor will continue to operate for 30 seconds. The dual 7-segment LEDs will flash “c” or “C” while the minimum run timer is active.
L 04 P Compressor Protector – Code P – Protector Trip 5) Op en St ar t Ci r c u i t L o c k o u t • The ICC will display a flashing “L” followed by a flashing “06” when an open start circuit condition occurs.
IMPORTA NT: This mode of active protection must be manually reset.
to continue to operate. If no command for unit operation is present, TEST mode causes 1) A steady “t” appears on the 7-segment LEDs • A maximum of six individual faults can be stored 2) The compressor will start • A maximum of three consecutive identical faults are stored. 3) The compressor will turn off after 5-seconds.
cooling during an active anti-short cycle timer or minimum run timer. • Wait until unit timer has expired or press the FLASHING TEST button to reset timer. 12.7 COMFORT CONTROL2 SYSTEM™ CONTROL WIRING C - Second Stage Cooling operation Normal AND Unit has received a command for second 13.X Codes 13.X ICC Diagnostic Codes 13.X ICC Diagnostic 13.X ICC ICC Diagnostic Diagnostic Codes CONVENTIONAL THERMOSTAT WIRING stage coolingCodes 13.
(3) (3) minutes minutes each. each. 01 –––Long Run Time 01 Long Run Time(Compressor) (Compressor) Locked L4 L4 compressor – Locked Rotor Rotor has continuously run The The compressor has continuously runfor for The ICC detects four (4) consecutive The than ICC 18 detects four (4) cooling consecutive more hours in the mode. thantrips 18 hours in the cooling mode.
FLASHING FLASHING • Check incoming line voltage to the disconnect 27 – Low Line Voltage or No Line Voltage 21 – Low Pressure Control Open • Unit has low refrigerant charge unit Fault 27 – Low Line Voltage or No Line Voltage • and Check incoming line voltage to the disconnect The ICC detects the LPC is open.
12.8 Conventional 24VAC Thermostat Control Wiring L Terminal Output • • • • • • • • • Flash 1 – Compressor running extremely long run cycle or low pressure Flash 2 – High pressure control trip Flash 3 – Unit short cycling Flash 4 – Locked rotor Flash 5 – Compressor will not run, open circuit Flash 6 – Open start circuit Flash 7 – Open run circuit Flash 8 – Control mis-operation Flash 9 – Low control voltage TABLE 6 Thermostat Load - Amps FIELD WIRE SIZE FOR 24 VOLT THERMOSTAT CIRCUITS 3.0 2.5 2.
FIGURE 8 FIGURE 9 TYPICAL 2-STAGE THERMOSTAT: CONDENSING UNIT WITH ELECTRIC HEAT TYPICAL TWO-STAGE THERMOSTAT: CONDENSING UNIT WITH ELECTRIC HEAT USING A HUMIDISTAT FOR DEHUMIDIFICATION*.
FIGURE 14 WIRING DIAGRAM FOR (-)ASL-039JEC, 048JEC, & 060JEC (DUAL DRIVE) 50
51
52 CM 0610