INSTALLATION INSTRUCTIONS AIR-COOLED CONDENSING UNITS EQUIPPED WITH THE COMFORT CONTROL SYSTEM™ (-)ANL-JEZ MODEL SERIES - 13 SEER (-)APL-JEZ MODEL SERIES - 14 SEER (-)APM-JEZ MODEL SERIES - 14.5 SEER FEATURING EARTH-FRIENDLY R-410A REFRIGERANT refrigerant ! RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION! ! WARNING THESE INSTRUCTIONS ARE INENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT.
TABLE OF CONTENTS Checking Product Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Electrical & Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Application . . . . . . . . . . . . . . . . . . . . . . .
UNIT MODEL NUMBER EXPLANATION FIGURE 1 DIMENSIONS AND INSTALLATION CLEARANCES (-) A N L – 018 J E Z DISCHARGE AIR AIR DISCHARGE ALLOW 600 [1524 mm] CLEARANCE [1524 mm] CLEARANCE ALLOW 60” COOLING CONNECTION FITTING Z - SWEAT WITH Z - SCROLL COMPRESSOR W W VARIATION E = ELECTRONIC VARIATION L ELECTRICAL DESIGNATION J = 208/230V-1-60 HH COOLING CAPACITY -018 = 18,000 BTUH (-)APL ONLY) -024 = 24,000 BTUH -030/-031 = 30,000 BTUH -036/-037 = 36,000 BTUH -042/-043 = 42,000 BTUH -048/-049 = 48,000 BTUH -
TABLE 1 (-)ANL ELECTRICAL AND PHYSICAL DATA ELECTRICAL PHYSICAL Compressor Fuse or HACR Model Fan Motor Minimum Outdoor Coil Phase Circuit Breaker Number R-410A Rated Load Locked Rotor Full Load Circuit Frequency (Hz) (-)ANLOz. [g] Amperes Ampacity Minimum Maximum Face Area No. Amperes CFM Voltage (Volts) Amperes (FLA) Amperes Amperes Amperes Sq. Ft. [m2] Rows {RAL) (LRA) [L/s] Net Lbs. [kg] Shipping Lbs. [kg] 024JEZ 030JEZ 031JEZ 036JEZ 037JEZ 042JEZ 043JEZ 048JEZ 049JEZ 060JEZ 140 [63.5] 160 [72.
! 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.
Multiple Unit Applications: When multiple condenser grille sides are aligned, a 6inch per unit clearance is recommended, for a total of 12” between two units. Two combined clearances below 12 inches will reduce capacity and efficiency. Do not reduce the 60-inch discharge, or 24-inch service, clearances. CUSTOMER SATISFACTION ISSUES NOTE: In some cases, noise in the living area has been traced back to improper installation of equipment.
UNIT MOUNTING If elevating the condensing unit, either on a flat roof or on a slab, observe the following guidelines. • • The base pan provided elevates the condenser coil 3/4” above the base pad. If elevating a unit on a flat roof, use 4” x 4” (or equivalent) stringers positioned to distribute unit weight evenly and prevent noise and vibration. NOTE: Do not block drain openings shown in Figure 1.
STEP 4: Drill four pilot holes in pad, ensuring that the hole is at least 1/4” deeper than the concrete screw being used. STEP 5: Center basepan over pre-drilled holes and insert concrete screws. STEP 6: Tighten concrete screws. NOTE: Do not over-tighten the concrete screws. Doing so can weaken the integrity of the concrete screw and cause it to break. Be careful to not damage coil fins. STEP 7: Finish unit assembly per unit’s installation instructions.
• R-410A systems are to be charged with liquid refrigerants. Prior to March 1999, R-410A refrigerant cylinders had a dip tube. These cylinders should be kept upright for equipment charging. Post March 1999 cylinders do not have a dip tube and should be inverted to ensure liquid charging of the equipment. • Do not install a suction line filter drier in the liquid line. • A liquid line filter drier is standard on every unit. Only manufacturer approved liquid line filter driers can be used.
MAXIMUM LENGTH OF LINES The maximum length of interconnecting line is 150 feet. Always use the shortest length possible with a minimum number of bends. Additional compressor oil is not required for any length up to 150 feet. NOTE: Excessively long refrigerant lines cause loss of equipment capacity. OUTDOOR UNIT INSTALLED ABOVE INDOOR COIL Keep the vertical separation between coils to a minimum. However, the vertical distance can be as great as 120 feet with the condensing unit ABOVE the indoor coil.
TUBING CONNECTIONS Indoor evaporator coils have only a holding charge of dry nitrogen. Keep all tube ends sealed until connections are to be made. • Use type “L” copper refrigeration tubing. Braze the connections with accepted industry practices. • Be certain both refrigerant service valves at the outdoor unit are closed. • • Clean the fittings before brazing. Remove the cap and schrader core from service port to protect seals from heat damage.
TABLE 7 LIQUID LINE SIZE — OUTDOOR UNIT ABOVE INDOOR COIL System Capacity Line Size Connection Line Size Size (Inch O.D.) (Inch I.D.
increased power input and non-verifiable performance. Moisture chemically reacts with the refrigerant and oil to form corrosive hydrofluoric and hydrochloric acids. These attack motor windings and parts, causing breakdown. After the system has been leak checked and proven sealed, connect the vacuum pump and evacuate system to 500 microns. The vacuum pump must be connected to both the high and low sides of the system through adequate connections.
An air velocity meter or airflow hood can give a more accurate reading of the system CFM. CHECKING REFRIGERANT CHARGE Charge for all systems should be checked against the Charging Chart inside the access panel cover. Before using the chart, the indoor conditions must be within 2°F of desired comfort conditions and system must be run until operating conditions stabilize (15 min. to 30 min.) ! CAUTION THE TOP OF THE SCROLL COMPRESSOR SHELL IS HOT.
CHARGING BY WEIGHT For a new installation, evacuation of interconnecting tubing and evaporator coil is adequate; otherwise, evacuate the entire system. Use the factory charge shown in Table 1 of these instructions or unit data plate. Note that charge value includes charge required for 15 ft. of standard size interconnecting liquid line. Calculate actual charge required with installed liquid line size and length using: 1/4” O.D. = 0.2 oz./ft. 5/16” O.D. = 0.3 oz./ft. 3/8” O.D. = 0.5 oz./ft. 1/2” O.D. = 1.
ELECTRICAL WIRING Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local code. POWER WIRING It is important that proper electrical power from a commercial utility is available at the condensing unit contactor. Voltage ranges for operation are shown in Table 11. Install a branch circuit disconnect within sight of the unit and of adequate size to handle the starting current (see Tables 1, 2 and 3).
may be run through the insulated bushing provided in the 7/8 hole in the base panel, up to and attached to the pigtails from the bottom of the control box. Conduit can be run to the base panel if desired by removing the insulated bushing. NOTE: Use No. 18 AWG solid copper wire at a minimum. If the wire length between the thermostat and the unit is more than 100 ft., use 16 AWG solid copper wire to avoid excessive voltage drop.
COMFORT CONTROL SYSTEM™ The Integrated Compressor Control (ICC) is an integral part of the Comfort Control System™ and has the following features: - Independent compressor and outdoor fan control - Anti-short cycle protection (3 minute) - Minimum unit run time (30 seconds) - 7-segment LED to display status and diagnostics for faster service and accuracy - High and low pressure switch monitoring - Power and control voltage monitoring - Active compressor protection integrated into the control - Fault Recall c
Line Voltage Connector (ST1) • Line voltage is connected to control board at Connector ST1 • Maximum wire size accepted is 6 AWG copper wire • Torque terminals up to 20 in. lbs.
3-minute Anti-short Cycle Timer • The ICC has a built in 3-minute time delay between compressor operations to protect the compressor against short cycling (Status flashing c). • The 3-minute time delay can be bypassed when a Y1 call is present by pressing the TEST button for 1 second and releasing (Status solid on c). 30 Second Minimum Run Timer • The ICC has a built in 30 second minimum unit run time (Status flashing c).
TEST AND FAULT RECALL MODES Test Mode (TEST Button) • The TEST mode resets the ICC from any active protection lockout mode or bypasses the 3-minute anti-short cycle timer and energizes the unit • To enter TEST mode press TEST button with an insulated probe for 1 second and then release: o If a Y1 call is present and a flashing “c” is indicated on the 7-segment display, a “t” will momentarily flash on the 7-segment display, the unit will energize, and the display will change to a steady “c” o If a Y1 call is
Status and Diagnostic Description 7 -Segment Display Code 0 c c Flashing F 1 (*) 2 (*) 21 (***) L21 (**) 23 (***) 22 Diagnostic Description Status / Possible Cause -Troubleshooting Information Standby Y1 Anti-Short Cycle Timer (3 minutes) or Minimum Run Timer (30 seconds) ICC Board Fuse Open Compressor Running Extremely Long Run Cycle (Cooling mode only) Standby - No call for operation First Stage or Single Stage Unit Operation Waiting for anti-short cycle timer to expire Waiting for minimum run time
5 (*) (***) Compressor will not run Active Protection – After detecting compressor will not run the ICC control will shut the unit down. The control will try to restart the unit every 5 minutes for 4 tries. After that, the ICC will attempt a restart every 20 minutes up to 6 hours. L5 (**) Lockout – Check Compressor (**) 8 (*) ICC Board Mis-operation ICC Board Mis-operation (L terminal output only) ICC Secondary Voltage Low (Less than 18V) 9 (*) 1.
TROUBLESHOOTING IMPORTANT: The JEZ series units with the ICC (Integrated Compressor Control) provide status and diagnostic information that greatly enhances the ability to quickly diagnose system faults. Use the following troubleshooting guides as another tool in system diagnostics. NOTE: In diagnosing common faults in the cooling system, develop a logical thought pattern as used by experienced technicians.
COOLING MECHANICAL CHECKS FLOW CHART Unit Running? YES NO Pressure problems? Go to Electrical Checks Flow Chart 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 Recirculation of Outdoor Air Inoperative Compressor Valves Inoperative Indoor Blower Non-condensibles Outdoor Check Valve Closed Low on Charge Higher tha
SYSTEM CHARGE TROUBLESHOOTING TABLE 12 TEMPERATURE PRESSURE CHART 26 TEMP (Deg. F) R-410A PSIG -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 — — — — — — — — — 0.4 5.1 10.9 14.2 17.9 22.0 26.4 31.3 36.5 42.2 48.4 55.1 62.4 70.2 78.5 87.5 97.2 107.5 118.5 130.2 142.7 156.0 170.1 185.1 201.0 217.8 235.6 254.5 274.3 295.3 317.4 340.6 365.1 390.9 418.0 446.5 476.5 508.
GENERAL TROUBLESHOOTING CHART ! WARNING DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. RELAY MAY BREAK ONLY ONE SIDE. FAILURE TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.
GENERAL SERVICE ANALYZER 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; mis-wired or faulty control Restriction in liquid line Drier plugged Line kinked Low head pressure Low charge Operating in low ambient temperatures Low voltage Suction or l
SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Short cycling of compressor (cont.
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 Dilution of Oil with Refrigerant Observe piping guidelines Noisy compressor Migration Check crankcase heater Cold, sweating compressor Flooding Check system charge Low L
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 Correct the refrigerant charge Remove non-condensible gases Size liquid line corre
THERMOSTATIC EXPANSION VALVES SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Superheat is low to normal with low suction pressure Unequal evaporator circuit loading Ensure air flow is equally distributed through evaporator Check for blocked distributor tubes Low load or airflow entering evaporator coil Ensure blower is moving proper air CFM Remove/Correct any air flow restriction Superheat and suction pressure fluctuate (valve is hunting) Expansion valve is oversized Install correct TEV Sensing bulb i
FIGURE 5 JEZ-DIAGNOSTIC LABEL C aution – UNI T M A Y ST A R T SUDDE NL Y A ND W I T H OUT W A R NI NG Solid red L E D light indicates a thermostat call for unit operation is present at the ICC. ICC will attempt to start unit after short cycle timer expires or when in Active Protection mode will attempt to restart unit prior to L ockout mode.
FIGURE 6 JEZ TEST & FAULT RECALL LABEL T E S T MODE MANUAL OP E R AT ION (T E S T ) T he T E S T mode res ets the IC C (Integrated C ompress or C ontrol) from any lockout mode or bypas ses compress or anti-s hort cycle delay timer. T o enter T E S T mode pres s T E S T button with ins ulated probe for 1 s econd and then release. A “t” will display on the 7-segment dis play. T he “t” will remain unless an error is detected or a call for Y 1 is present (red LE D Y 1 is on).
FIGURE 7 WIRING DIAGRAM 35
CM 0109
