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PY4G- -- -B
PY4G- -- -E
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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14 SEER SINGLE ---PACKAGED AIR CONDITIONER AND
GAS FURNACE SYSTEM WITH R ---410A REFRIGERANT
SINGLE PHASE 2---5 NOMINAL TONS (SIZES 24---60)
THREE PHASE 3---5 NOMINAL TONS (SIZES 36---60)
Installation Instructions
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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. Have a fire extinguisher available. Read these
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instructions thoroughly and follow all warnings or cautions
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included in literature and attached to the unit. consult local
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Fig. 1 - - Unit PY4G
(Low NOx Model Available)
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Table of Contents
Related Manuals for Carrier PY4G B Series
Summary of Contents for Carrier PY4G B Series
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Page 1: Table Of Contents
PY4G- -- -B 14 SEER SINGLE ---PACKAGED AIR CONDITIONER AND GAS FURNACE SYSTEM WITH R ---410A REFRIGERANT PY4G- -- -E SINGLE PHASE 2---5 NOMINAL TONS (SIZES 24---60) THREE PHASE 3---5 NOMINAL TONS (SIZES 36---60) Installation Instructions 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
RECEIVING AND INSTALLATION building codes, the current editions of the National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code Step 1 — Check Equipment (NEC) NFPA 70. Identify Unit In Canada refer to the current editions of the National Standards of The unit model number and serial number are stamped on the unit Canada CAN/CSA- -B149.1 and .2 Natural Gas and Propane information plate. -
Page 3: Field Fabricate Ductwork
Training for operators of the lifting equipment should include, but not be limited to, the following: 1. Application of the lifter to the load, and adjustment of the OPTIONAL OPTIONAL RETURN SUPPLY lifts to adapt to various sizes or kinds of loads. OPENING OPENING 2. - Page 4 A190121 Fig. 3 - - 24- -36 Unit Dimensions...
- Page 5 A190122 Fig. 4 - - 42- -60 Unit Dimensions...
- Page 6 SMALL/COMMON CURB SMALL SUPPLY BASE UNIT LARGE BASE RETURN UNIT UNIT PLACEMENT ON COMMON CURB SMALL OR LARGE BASE UNIT LARGE CURB A180216 B (small / common B (large UNIT CATALOG base) base) SIZE NUMBER IN. (mm) IN. (mm) (mm) IN.
- Page 7 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 8: Connect Condensate Drain
Table 1—Physical Data Con’t UNIT SIZE 48090 48115 48130 60090 60115 60130 NOMINAL CAPACITY (ton) SHIPPING WEIGHT lb SHIPPING WEIGHT kg COMPRESSOR / QUANTITY Scroll / 1 REFRIGERANT (R --- 410A) Quantity lb Quantity (kg.) REFRIGERANT METERING DEVICE Orifice ORIFICE ID in./mm .080 / 2.03 .084 / 2.14 OUTDOOR COIL... -
Page 9: Install Gas Piping
NOTE: Dedicated low NOx models MUST be installed in 2. When flexible connectors are used, the maximum length shall not exceed 36 inches (915 mm). California Air Quality Management Districts where a Low NOx rule exists. 3. When lever handle type manual equipment shutoff valves are used, they shall be T- -handle valves. -
Page 10: Install Duct Connections
tion, and only the piece over the downshot knockout needs WARNING to be removed. Discard insulation. 4. To remove the downshot (plastic) knockouts for both sup- FIRE OR EXPLOSION HAZARD ply and returns, break front and right side connecting tabs with a screwdriver and hammer. -
Page 11: Install Electrical Connections
5. Size all ductwork for maximum required airflow (either codes for maximum fuse/circuit breaker size and minimum circuit heating or cooling) for unit being installed. Avoid abrupt amps (ampacity) for wire sizing. duct size increases or decreases or performance may be The field- -supplied disconnect switch box may be mounted on the affected. -
Page 12: Standard Connection
Standard Connection PRE- - START- - UP Run the low- -voltage leads from the thermostat, through the inlet WARNING hole, and into unit low- -voltage splice box. Locate six (seven for 3- -phase) 18- -gage wires leaving control box. These low- -voltage connection leads can be identified by the colors ENVIRONMENTAL, FIRE, EXPLOSION,... -
Page 13: Check For Refrigerant Leaks
4. Verify the following conditions: a. Make sure gas line is free of air. Before lighting the unit for the first time, perform the following with the gas valve in the OFF position: NOTE: If the gas supply pipe was not purged before connecting the unit, it will be full of air. -
Page 14: Adjust Gas Input
S The rated gas inputs shown in Table 6 are for altitudes from sea Measure Gas Flow (Natural Gas Units) level to 2000 ft (610 m) above sea level. These inputs are based Minor adjustment to the gas flow can be made by changing the manifold pressure. -
Page 15: Check Burner Flame
Measure Manifold Pressure (Propane Units) WARNING Refer to propane kit installation instructions for properly checking gas input. FIRE AND UNIT DAMAGE HAZARD NOTE: For installations below 2,000 ft (610 m), refer to the unit rating plate for proper propane conversion kit. For installations Failure to follow this warning could result in personal injury or death and/or property damage. - Page 16 A150502 Fig. 14 - - 208/230- -1- -60 Connection Wiring Diagram...
- Page 17 A150510 Fig. 14 Cont. - - 208/230- -1- -60 Ladder Wiring Diagram...
- Page 18 A150508 Fig. 15 - - 208/230- -3- -60 Connection Wiring Diagram...
- Page 19 A150511 Fig. 15 Cont. - - 208/230- -3- -60 Ladder Wiring Diagram...
- Page 20 A150509 Fig. 16 - - 460- -3- -60 Connection Wiring Diagram...
- Page 21 A150512 Fig. 16 Cont. - - 460- -3- -60 Ladder Wiring Diagram...
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Page 22: Normal Operation
Normal Operation Table 7 – LED Indications STATUS CODE LED INDICATION An LED (light- -emitting diode) indicator is provided on the Normal Operation integrated gas unit controller (IGC) to monitor operation. The IGC No Power or Hardware Failure is located by removing the control access panel (see Fig. 20). Check fuse, low voltage circuit 1 Flash During normal operation, the LED is continuously on (See Table 7... -
Page 23: Checking & Adjusting Refrigerant Charge
Checking and Adjusting Refrigerant Charge (psig) to determine desired system operating liquid line temperature (See Table 9). The refrigerant system is fully charged with R- -410A refrigerant 6. Compare actual liquid line temperature with desired liquid and is tested and factory sealed. Allow system to operate a line temperature. -
Page 24: Cooling Sequence Of Operation
1. Remove the vinyl cap off of the desired speed tap wire 2. Determine correct normal cooling fan speed for unit and (Refer to Table 8 for color coding). Table 11 and 12 show application. Add the wet coil pressure drop in Table 14 to the temperature rise associated with each fan speed for a the system static to determine the correct cooling airflow given static pressure. - Page 25 HEAT HIGH OILL AB A15 R3 R5 R6 C 24VAC SSTZ-8 W2 Y2/ DH G A09058 Fig. 18 - - Interface Fan Board (IFB) Shunt in no Shunt in dehumidification dehumidification position position A14399 Fig. 17 - - Single Phase IGC Board...
- Page 26 Table 9 – Cooling Charging Chart 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 50: Maintenance
MAINTENANCE 3. Inspect blower motor and wheel for cleanliness at the beginning of each heating and cooling season. Clean when To ensure continuing high performance and to minimize the necessary. For first heating and cooling season, inspect possibility of premature equipment failure, periodic maintenance blower wheel bi- -monthly to determine proper cleaning must be performed on this equipment. -
Page 51: Induced Draft (Combustion Air) Blower
f. Connect 5 pin plug and 4 pin plug to indoor blower 7. Remove the mounting screw that attaches the burner rack to motor. the unit base (See Fig. 19). g. Reinstall blower access panel (see Fig. 20). 8. Partially slide the burner rack out of the unit (see Fig. 19 3. -
Page 52: Outdoor Fan
A07680 Fig. 22 - - Burner Rack Removed Outdoor Fan Control CAUTION Access Panel Blower Access Panel UNIT OPERATION HAZARD Compressor Access Failure to follow this caution may result in damage to unit Panel components. A09215 Keep the condenser fan free from all obstructions to ensure Fig. -
Page 53: Refrigerant Circuit
FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” SIZE Fig. 23 - - Fan Blade Position Refrigerant Circuit Pressure Switches Annually inspect all refrigerant tubing connections. Pressure switches are protective devices wired into control circuit (low voltage). -
Page 54: Troubleshooting
Servicing Systems on Roofs with Synthetic Materials The compressor is an electrical (as well as mechanical) device. Exercise extreme caution when working near compressors. Power POE (polyolester) compressor lubricants are known to cause long should be shut off, if possible, for most troubleshooting techniques. term damage to some synthetic roofing materials. - Page 55 R- -410A QUICK REFERENCE GUIDE S 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 S R- -410A refrigerant cylinders are rose colored. S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
- Page 56 Table 17 – 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, or high--pressure, Replace component loss--of--charge or low--pressure switch Compressor and condenser fan will not start. Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
- Page 57 Table 18 – Troubleshooting Guide–Heating SYMPTOM CAUSE REMEDY Water in gas line Drain. Install drip leg. No power to furnace Check power supply fuses, wiring or circuit breaker. Check transformer. No 24--v power supply to control circuit NOTE: Some transformers have internal over--current protection that requires a cool--down period to reset.
- Page 58 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 GAS PIPING FOR LEAKS (WHERE APPLICABLE)