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INSTALLATION INSTRUCTIONS
14 SEER Single- -Packaged Air Conditioner System
Single Phase 2- -5 Nominal Tons (Sizes 24- -60
IMPORTANT: Effective January 1, 2015, all split system and
packaged air conditioners must be installed pursuant to applicable
regional efficiency standards issued by the Department of Energy.
NOTE:
Read the entire instruction manual before starting the
installation.
NOTE:
Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
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with R- -410A Refrigerant
Three Phase 3- -5 Tons (Sizes 36- -60)
PAD4 Series E and WPA4 Series B
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Specifications are subject to change without notice.
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Fig. 1 - - Unit PAD4 and WPA4
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(Some models may vary in appearance)
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SAFETY CONSIDERATIONS
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Improper installation adjustment, alteration, service, maintenance,
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or use can cause explosion, fire, electrical shock, or other
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conditions which may cause death, personal injury, or property
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damage. Consult a qualified installer, service agency, or your
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distributor or branch for information or assistance. The qualified
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installer or agency must use factory- -authorized kits or accessories
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when modifying this product Refer to the individual instructions
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packaged with the kits or accessories when installing.
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Follow all safety codes. Wear safety glasses, protective clothing,
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and work gloves. Use quenching cloth for brazing operations.
Have a fire extinguisher available. Read these instructions
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thoroughly and follow all warnings or cautions included in
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literature and attached to the unit. Consult local building codes, the
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current editions of the National Electrical Code (NEC) NFPA 70.
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In Canada refer to the current editions of the Canadian electrical
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Code CSA C22.1.
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Recognize safety information. This is the safety- -alert symbol
When you see this symbol on the unit and in instructions or
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manuals, be alert to the potential for personal injury. Understand
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these signal words; DANGER, WARNING, and CAUTION. These
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words are used with the safety- -alert symbol. DANGER identifies
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the most serious hazards which will result in severe personal injury
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or death. WARNING signifies hazards which could result in
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personal injury or death. CAUTION is used to identify unsafe
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practices which may result in minor personal injury or product and
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property damage. NOTE is used to highlight suggestions which
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will result in enhanced installation, reliability, or operation.
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A09034
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51901180403
07/2017
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Table of Contents
Related Manuals for Carrier PAD4 E Series
Summary of Contents for Carrier PAD4 E Series
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Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS 14 SEER Single- -Packaged Air Conditioner System with R- -410A Refrigerant Single Phase 2- -5 Nominal Tons (Sizes 24- -60 Three Phase 3- -5 Tons (Sizes 36- -60) PAD4 Series E and WPA4 Series B IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy. -
Page 2: Introduction
Step 2 — Provide Unit Support WARNING IMPORTANT: The unit must be secured to the curb by installing screws through the bottom of the curb flange and into the unit base ELECTRICAL SHOCK HAZARD rails. When installing large base units onto the common curb, the Failure to follow this warning could result in personal screws must be installed before allowing the full weight of the unit injury or death. - Page 3 A150557 Fig. 2 - - PAD4 24- -36 Unit Dimensions 51901180403 Specifications are subject to change without notice.
- Page 4 A160006 Fig. 3 - - WPA4 24- -36 Unit Dimensions 51901180403 Specifications are subject to change without notice.
- Page 5 A150558 Fig. 4 - - PAD4 42- -60 Unit Dimensions 51901180403 Specifications are subject to change without notice.
- Page 6 A160007 Fig. 5 - - WPA4 42- -60 Unit Dimensions 51901180403 Specifications are subject to change without notice.
- Page 7 Dashed lines show cross support location for large basepan units. HVAC unit HVAC unit basepan base rails Sealing Gasket Roofcurb Anchor screw Wood nailer* Flashing field supplied Roofcurb* Insulation (field supplied) Roofing material field supplied Cant strip field supplied SMALL/COMMON CURB A09413 *Provided with roofcurb A09090...
- Page 8 CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"...
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Page 9: Provide Clearances
Step 3 — Provide Clearances INSPECTION The required minimum service clearances are shown in Fig. 2 and Prior to initial use, and at monthly intervals, all rigging shackles, 5. Adequate ventilation and outdoor air must be provided. The clevis pins, and straps should be visually inspected for any damage, outdoor fan draws air through the outdoor coil and discharges it evidence of wear, structural deformation, or cracks. -
Page 10: Connect Condensate Drain
Step 6 — Connect Condensate Drain (SMACNA) and Air Conditioning Contractors Association (ACCA) minimum installation standards for residential NOTE: When installing condensate drain connection be sure to heating and air conditioning systems. comply with local codes and restrictions. 5. Secure all ducts to building structure. Flash, weatherproof, Unit disposes of condensate water through a 3/4 in. -
Page 11: Install Electrical Connections
CAUTION UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the unit being installed. 1. Make all electrical connections in accordance with NFPA 70 (NEC) (latest edition) and local electrical codes governing such wiring. In Canada, all electrical connections must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. -
Page 12: Special Procedures For 208V Operation
SPECIAL PROCEDURES FOR 208- - V OPERATION WARNING HIGH VOLTAGE POWER LEADS POWER (SEE UNIT WIRING SUPPLY LABEL) ELECTRICAL SHOCK HAZARD 3-PHASE SHOWN 1-PHASE USES Failure to follow this warning could result in personal TWO POWER injury or death. EQUIP GR LEADS FIELD-SUPPLIED Before installing or servicing system, always turn off main... - Page 13 Table 1 – Physical Data- -Unit UNIT SIZE NOMINAL CAPACITY (ton) 2 ---1/2 3 ---1/2 SHIPPING WEIGHT lb. SHIPPING WEIGHT (kg) Rotary Reciprocating Scroll COMPRESSORS Quantity REFRIGERANT (R --- 410A) Quantity lb Quantity (kg) REFRIGERANT METERING DEVICE Orifice Orifice ORIFICE ID in./mm .059 / 1.5 .061 / 1.55 .073 / 1.85...
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Page 14: Pre- -Start- -Up
PRE- -START- -UP START- - UP Step 1 — Check for Refrigerant Leaks WARNING WARNING ENVIRONMENTAL, FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD EXPLOSION HAZARD Failure to follow this warning could result in personal Failure to follow this warning could injury or death and/or property damage. result in death, serious personal injury, 1. -
Page 15: Indoor Airflow And Airflow Adjustments
INDOOR AIRFLOW AND AIRFLOW ADJUST- WARNING MENTS CAUTION EXPLOSION HAZARD Failure to follow this warning could result in death, serious personal injury, UNIT OPERATION HAZARD and/or property damage. Failure to follow this caution may result in unit damage. Never use air or gases containing For cooling operation, the recommended airflow is 350 to oxygen for leak testing or operating 450 cfm for each 12,000 Btuh of rated cooling capacity. -
Page 16: Continuous Fan Operation
1. Using Fig. 13, move the two pin DEHUM jumper from the 3. Select speed tap from Table 5 that will achieve required “STD” position to the “DEHUM” position. airflow from Table 2. 2. Remove fan speed tap wire from the “LOW” terminal on 4. - Page 17 51901180403 Specifications are subject to change without notice.
- Page 18 51901180403 Specifications are subject to change without notice.
- Page 19 51901180403 Specifications are subject to change without notice.
- Page 20 51901180403 Specifications are subject to change without notice.
- Page 21 51901180403 Specifications are subject to change without notice.
- Page 22 51901180403 Specifications are subject to change without notice.
- Page 23 51901180403 Specifications are subject to change without notice.
- Page 24 A150503 Fig. 14 - - Connection Wiring Diagram 208/230- -1- -60 51901180403...
- Page 25 A150513 Fig. 12 Cont. - - Ladder Wiring Diagram 208/230- -1- -60 51901180403 Specifications are subject to change without notice.
- Page 26 A150504 Fig. 15 - - Connection Wiring Diagram 208/230- -3- -60 51901180403...
- Page 27 A150514 Fig. 13 Cont. - - Ladder Wiring Diagram 208/230- -3- -60 51901180403 Specifications are subject to change without notice.
- Page 28 A150505 Fig. 16 - - Connection Wiring Diagram 460- -3- -60 51901180403...
- Page 29 A150515 Fig. 14 Cont. - - Ladder Wiring Diagram 460- -3- -60 51901180403 Specifications are subject to change without notice.
- Page 30 Superheat charging table is derived from optimum performance point. (95_F [35_C] outdoor ambient and (80_F [27_C] dry bulb; 67_F [19_C] wet bulb indoor condition.) Where a dash( --- ---) appears do not attempt to check charge or charge unit under these conditions using the superheat method. (Weigh in method should be used.) A150625 To properly check or adjust charge, conditions must be favorable for subcooling charging.
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Page 31: Maintenance
MAINTENANCE Air Filter IMPORTANT: Never operate the unit without a suitable air filter To ensure continuing high performance, and to minimize the in the return- -air duct system. Always replace the filter with the possibility of premature equipment failure, periodic maintenance same dimensional size and type as originally installed. -
Page 32: Outdoor Coil, Indoor Coil, And Condensate Drain Pan
FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” SIZE Fig. 18 - - Fan Blade Position Inspect the drain pan and condensate drain line when inspecting the coils. Clean the drain pan and condensate drain by removing all foreign matter from the pan. -
Page 33: Refrigerant Circuit
After inspecting the electrical controls and wiring, replace the charge so that pressure gauges read 0 psi (0 Pa). Never open system access panels (see Fig. 19). Start the unit, and observe at least one without breaking vacuum with dry nitrogen. complete heating cycle and one complete cooling cycle to ensure High- - Pressure Switch proper operation. -
Page 34: Troubleshooting
Liquid Line Filter Drier This system uses R- -410A refrigerant which has higher operating pressures than R- -22 and other refrigerants. No other refrigerant The filter drier is specifically designed to operate with R- -410A. may be used in this system. Gage set, hoses, and recovery system Use only factory- -authorized components. - Page 35 Table 11 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, control relay, or high-- Replace component pressure, loss--of--charge or low--pressure switch Compressor and outdoor fan will not start Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
- Page 36 AIR CONDITIONER WITH R- -410A QUICK REFERENCE GUIDE R- -410A refrigerant operates at 50- -70 percent higher pressures than R- -22. Be sure that servicing equipment and replacement components are designed to operate with R- -410A. R- -410A refrigerant cylinders are rose colored. S R- -410A refrigerant cylinders manufactured prior to March 1, 1999, have a dip tube that allows liquid to flow out of cylinder in upright position.
- Page 37 START- -UP CHECKLIST (Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: SERIAL NO.: DATE: TECHNICIAN: II. PRESTART- -UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE...
- Page 38 Copyright 2017 International Comfort Products Replaces: 51901180402 Lewisburg, TN 37091 USA 51901180403...