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Johnson Controls
J15 warranty
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Contents
Main
TECHNICAL GUIDE
SERIES 20 SINGLE PACKAGE GAS/ELECTRIC UNITS AND SINGLE PACKAGE AIR CONDITIONERS
J15, 18, 20 & 25 DJ
DESCRIPTION
TABLE OF CONTENTS
LIST OF TABLES
349687-JTG-A-1007
PRODUCT NOMENCLATURE
DJJ15 N24 A 2 A AA 1 0 1 2 4 A
15-25 Ton Series 20 Model Number Nomenclature
FEATURES
FACTORY-INSTALLED OPTIONS
FIGURE 1 - UNIT CUTAWAY
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CONTROL OPTIONS
FIELD-INSTALLED ACCESSORIES
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349687-JTG-A-1007
T ABLE 1: SOUND POWER RA TING
T ABLE 2: CAP ACITY RA TINGS - (ARI 360)
TABLE 3: GAS HEAT RATIINGS
349687-JTG-A-1007
TABLE 4: COOLING CAPACITIES FOR J15DJ
TABLE 5: COOLING CAPACITIES FOR J18DJ
TABLE 6: COOLING CAPACITIES FOR J20DJ
TABLE 7: COOLING CAPACITIES FOR J25DJ
CFM, STATIC PRESSURE, AND POWER - ALTI- TUDE AND TEMPERATURE CORRECTIONS
TABLE 8: ALTITUDE CORRECTION FACTORS
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TABLE 9: SUPPLY AIR BLOWER PERFORMANCE (15 TON) - COOLIN G ONLY 180 MBH - BOTTOM DUCT CONNECTIONS
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TABLE 11: SUPPLY AIR BLOWER PERFORMANCE (20 TO N) - COOLING ONLY 240 MBH - BOTTOM DUCT CONNECTIONS
TABLE 12: SUPPLY AIR BLOWER PERFORMANCE (15 TON) - GAS HEAT 180 MBH - BOTTOM DUCT CONNECTIONS
TABLE 13: SUPPLY AIR BLOWER PERFORMANCE (17.5 TON) - GAS HEAT 210 MBH - BOTTOM DUCT CONNECTIONS
TABLE 14: SUPPLY AIR BLOWER PERFORMANCE (20 TON) - GAS HEAT 240 MBH - BOTTOM DUCT CONNECTIONS
TABLE 15: SUPPLY AIR BLOWER PERFORMANCE (25 TON) - GAS HEAT 300 MBH - BOTTOM DUCT CONNECTIONS
TABLE 16: BLOWER MOTOR AND DRIVE DATA
T ABLE 17: STATIC RESIST ANCES
TABLE 18: POWER EXHAUST PERFORMANCE
TABLE 19: J**DJ ELECTRICAL DATA WITHOUT POWERED CONVENIENCE OUTLET
TABLE 19: J**DJ ELECTRICAL DATA WITHOUT POWERED CONVENIENCE OUTLET (CONTINUED)
TABLE 20: J**DJ ELECTRICAL DATA WITH POWERED CONVENIENCE OUTLET
TABLE 20: J**DJ ELECTRICAL DATA WITH POWERED CONVENIENCE OUTLET (CONTINUED)
T ABLE 21: J**DJ VOL T AGE LIMIT A TIONS
TABLE 22: PHYSICAL DATA
MODELS J15DJ J18DJ J20DJ J25DJ
Johnson Controls Unitary Products 29
TABLE 23: SUPPLY FAN VFD WEIGHTS, IN LBS.
POWER WIRING
FIGURE 3 - TYPICAL J**DJ FIELD WIRING DIAGRAM
TABLE 24: ELECTRIC HEAT CORRECTION FACTORS
NOMINAL VOLTAGE VOLTAGE kW CAP. MULTI- PLIER 208 240 480 600
FIGURE 4 - FRONT VIEW DIMENSIONS TABLE 25: UTILITIES ENTRY DATA
water entry into the building.
1. One-inch gas piping NPT required.
D1-11/16 Hole Gas Piping (Bottom)1, 2
2. Opening in the bottom of the unit can be located by the slice in
FIGURE 5 - REAR VIEW DIMENSIONS
REAR VIEW
Dimensions listed are for side duct flange openings; see Field Accessories for Side Duct Flange Kit.
FIGURE 6 - UNIT DIMENSIONS J15, 18, 20 & 25 DJ (RAINHOOD)
TABLE 26: MINIMUM CLEARANCES
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349687-JTG-A-1007
FIGURE 9 - FOUR AND SIX POINT LOADS
Note: These weights are with economizer and high option heat (gas or electric).
TABLE 27: FOUR AND SIX POINT LOADS
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GUIDE SPECIFICATIONS
GENERAL
DESCRIPTION