Main
INSTALLATION MANUAL
MILLENNIUM ROOFTOP 25, 30 & 40 TON
882108-YIM-B-1012
MODELS: Z42 Z33 Z34
TABLE OF CONTENTS
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GAS HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
GAS FURNACE OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
LIST OF FIGURES
LIST OF TABLES
NOMENCLATURE
123 4 CONTROL
BASIC UNIT
Z
3
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GENERAL
SAFETY CONSIDERATIONS
NOTES, CAUTIONS AND WARNINGS
GAS FIRED MODELS
ALL MODELS
INSTALLATION
PRECEDING INSTALLATION
LIMITATIONS
LOCATION
TABLE 1: COOLING & ELECTRICAL APPLICATION
TABLE 3: STANDARD GAS HEATING CAPACITIES
TABLE 4: TEMPERATURE RISE
TABLE 5: MINIMUM HEATING CFM
TABLE 6: MODULATING GAS HEATING CAPACITIES
882108-YIM-B-1012
FIGURE 2 - TYPICAL RIGGING
TABLE 7: MODULATING HEAT
TABLE 8: UNIT WEIGHTS
TABLE 9: SUPPLY FAN MOTOR VFD WEIGHTS
TABLE 10: EXHAUST FAN MOTOR VFD WEIGHTS
FIGURE 3 - CENTER OF GRAVITY
RIGGING AND HANDLING
TABLE 11: UNIT CORNERWEIGHT
TABLE 12: UNIT CENTER OF GRAVITY
DUCTWORK
AIR HOODS FOR FIXED OUTSIDE AIR (UNITS WITH MANUAL ECONOMIZER)
AIR HOODS FOR ECONOMIZER
AIR HOODS FOR EXHAUST AIR
CONDENSATE DRAIN
SERVICE ACCESS
COMPRESSORS
FILTERS
THERMOSTAT (CONSTANT VOLUME UNITS)
SPACE SENSOR (VARIABLE AIR VOLUME UNITS)
POWER AND CONTROL WIRING
GAS HEATING
GAS PIPING
GAS CONNECTION
TABLE 14: PIPE SIZES
FIGURE 6 - TYPICAL GAS PIPING CONNECTION
VENT AND COMBUSTION AIR
FIGURE 7 - VENT AND COMBUSTION AIR HOODS
FIGURE 8 - CLEARANCES
ELECTRIC HEAT
HOT WATER HEAT
STEAM HEAT
FIGURE 9 - HOT WATER PIPING CROSS-SEC- TION
FIGURE 10 - STEAM PIPING CROSS-SECTION
STATIC PRESSURE CONTROL PLASTIC TUBING
EXHAUST STATIC PRESSURE
882108-YIM-B-1012
SUPPLY AIR
C
REAR
FRONT
LEFT
RIGHT END
FRONT
REAR RIGHT END LEFT END FRONT
FRONT
RIGHT END LEFT END
REAR
FIGURE 13 - BOTTOM RETURN, FRONT & REAR SUPPLY
LEFT END
RIGHT END
RIGHT END
FIGURE 14 - END RETURN, FRONT & REAR SUPPLY
OPEN
B
C
TABLE 15: GENERAL PHYSICAL DATA
TABLE 16: REFRIGERANT FACTORY CHARGE R-410A
TABLE 17: ELECTRICAL DATA 25 TON BASIC UNIT R-410A
TABLE 18: ELECTRICAL DATA 30 TON BASIC UNIT R-410A
TABLE 19: ELECTRICAL DATA 40 TON BASIC UNIT R-410A
TABLE 20: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT R-410A
TABLE 21: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT R-410A
TABLE 22: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT R-410A
TABLE 23: ELECTRICAL DATA 25 TON W/POWER EXHAUST R-410A
TABLE 24: ELECTRICAL DATA 30 TON W/POWER EXHAUST R-410A
TABLE 25: ELECTRICAL DATA 40 TON W/POWER EXHAUST R-410A
TABLE 26: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A
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TABLE 26: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)
TABLE 27: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A
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TABLE 27: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)
TABLE 28: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A
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TABLE 28: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)
FIGURE 15 - FIELD INSTALLED DISCONNECT
*
FIGURE 16 - 40 TON CONDENSER DETAIL
FIGURE 17 - PARTIAL ROOF CURB MODEL 1RC0455P
A B
CFM, STATIC PRESSURE, AND POWER - ALTI- TUDE AND TEMPERATURE CORRECTIONS
TABLE 29: ALTITUDE CORRECTION FACTORS
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TABLE 30: FAN PERFORMANCE - 25 TON 1,
25 Ton Forward Curve
TABLE 31: FAN PERFORMANCE - 30 TON 1, 2
30 Ton Forward Curv
TABLE 32: FAN PERFORMANCE - 40 TON1,2
40 Ton Forward Curve
TABLE 33: COMPONENT STATIC RESIST ANCE
TABLE 34: SUPPLY FAN MOTOR AND DRIVE DATA
TABLE 35: EXHAUST FAN DRIVE DATA
TABLE 36: POWER EXHAUST - ONE FORWARD CURVED FAN 25 TON
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TABLE 37: POWER EXHAUST - TWO FORWARD CURVED FANS - 30 & 40 TON
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START-UP
COMPRESSOR ROTATION
FIGURE 24 - BELT TENSION ADJUSTMENT
SUPPLY AIR FAN INSTRUCTIONS
TABLE 38: BELT ADJUSTMENT
SYSTEM SETPOINTS
TABLE 39: BLOWER SPEED RATE OF CHANGE
TABLE 40: 25 TON DRIVE ADJUSTMENT
TABLE 41: 30 TON DRIVE ADJUSTMENT
TABLE 42: 40 TON DRIVE ADJUSTMENT
TABLE 43: DRIVE ADJUSTMENT FOR POWER EXHAUST - 25 TON
GAS FURNACE OPERATING INSTRUCTIONS
TO LIGHT THE MAIN BURNERS
TO SHUT DOWN
POST-START CHECKLIST (GAS)
MANIFOLD GAS PRESSURE ADJUSTMENT
C
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FM Btuh 0.8 1.08 F Degrees Temp Rise
ELECTRIC HEATING
COOLING OPERATING INSTRUCTIONS
SERVICE
FIGURE 26 - TYPICAL FLAME APPEARANCE
REFRIGERATION SYSTEM
COMPRESSORS
MOTORS
TABLE 46: STEAM COIL (1 ROW, 25 & 30 TON)
TABLE 47: STEAM COIL (1 ROW, 40 TON)
TABLE 48: STATIC RESIST ANCE STEAM COIL (25 & 30 TON)
TABLE 49: STATIC RESISTANCE STEAM COIL (40 TON)
TABLE 50: HOT WATER COIL (1 ROW 25 & 30 TON)
TABLE 51: HOT WATER COIL (1 ROW , 40 TON)
TABLE 52: WATER PRESSURE DROP (1 ROW , 25 & 30 TON)
TABLE 53: WATER PRESSURE DROP (1 ROW, 40 TONS)
TABLE 54: HOT WATER COIL (2 ROW, 25 & 30 TON)
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GAS FURNACE SAFETY FEATURES
MAINTENANCE
NORMAL MAINTENANCE
GAS BURNER
TABLE 59: INDOOR BLOWER BEARING LUBRICATION SCHEDULE
SECURE OWNERS APPROVAL
NOTE:
FIGURE 48 - TYPICAL FLUE BAFFLE
25 TON CHARGING CURVE
DISCHARGE PRESSURE (PSIG)
30 TON CHARGING CURVE
40 TON CHARGING CURVE
DISCHARGE PRESSURE (PSIG)
PRESSURE DROP ACROSS A DRY EVAPORATOR COIL 25T
PRESSURE DROP ACROSS A DRY EVAPORATOR COIL - 30T
LIOC ROTAROPAVE YRD A SSORCA PORD ERUSSERP T04
PRESSURE DROP (in. wg.)
FIGURE 55 - R-410A QUICK REFERENCE GUIDE
R-410A QUICK REFERENCE GUIDE
Refer to Installation Instructions for specific installation requirements.