Johnson Controls J15 warranty Series Single Package Gas/Electric Units, Description

Page 1
TECHNICAL GUIDE

349687-JTG-A-1007

TECHNICAL GUIDE

SERIES 20

SINGLE PACKAGE GAS/ELECTRIC UNITS

AND SINGLE PACKAGE AIR

CONDITIONERS

J15, 18, 20 & 25 DJ

15 & 25 NOMINAL TONS

12.00EER (15 TONS), 11.70 EER (17.5 TONS),

11.3EER (20 TONS), 10.5 EER (25 TONS)

DESCRIPTION

Johnson Controls Series 20 J**DJ units are convertible single package high efficiency rooftops. All models have indepen- dent dual refrigerant circuits for efficient part load operation. Although the units are primarily designed for curb mounting on a roof, they can also be slab-mounted at ground level or set on steel beams above a finished roof.

All units include:

Powder Paint finish that meets ASTM-B-117 750 hour salt spray standards

Two-stage cooling provided by dual independent refrigeration circuits with expansion valves, filter-driers, high and low pressure/loss of charge switches and freezestats

Scroll compressors

Two-stage heating provided by dual independent heat exchangers with aluminized steel tubes, redundant gas valves, spark ignition with induced draft logic

Permanently lubricated motors

Bottom or side air discharge configuration capability (field convertible)

Belt Drive Blower Motor with high static drive option

Constant supply air volume (CV) with optional variable air volume (VAV)

Manufactured under the quality standards of ISO9001

Zero-25% fixed air damper with hood

Copper tube/aluminum fin coils

Hinged filter access and tool free latched doors

Hinged tool free blower, blower motor, filters and electri- cal panel access

Rigging holes in base rails for lifting

Single point power connection

Complete factory package - tested, charged and wired

CSA agency approvals on all units

WARRANTY

One-year parts warranty

A Five-year parts warranty on the compressors and electric heat elements

Ten-year parts warranty on the gas-fired heat exchangers

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

Image 1
Contents AND SINGLE PACKAGE AIR CONDITIONERS SERIES SINGLE PACKAGE GAS/ELECTRIC UNITSDESCRIPTION TECHNICAL GUIDELIST OF FIGURES TABLE OF CONTENTSLIST OF TABLES 15-25Ton Series 20 Model Number Nomenclature PRODUCT NOMENCLATUREJ15 D J N24 A 2 A AA 1 0 1 2 4 A FEATURES FIGURE 1 - UNIT CUTAWAY FACTORY-INSTALLEDOPTIONS349687-JTG-A-1007 CONTROL OPTIONS FIELD-INSTALLEDACCESSORIES349687-JTG-A-1007 TABLE 2 CAPACITY RATINGS - ARI TABLE 1 SOUND POWER RATING1TABLE 3 GAS HEAT RATIINGS TABLE 4 COOLING CAPACITIES FOR J15DJ TABLE 5 COOLING CAPACITIES FOR J18DJ TABLE 6 COOLING CAPACITIES FOR J20DJ TABLE 7 COOLING CAPACITIES FOR J25DJ TABLE 8 ALTITUDE CORRECTION FACTORS Johnson Controls Unitary Products FIGURE 2 - ALTITUDE/TEMPERATURE CONVERSION FACTOR208 VOLT AND HIGH STATIC DRIVE 208 VOLT AND STANDARD DRIVE230/460/575 VOLT ANDSTANDARD 208 VOLT ANDDRIVE 208 VOLT AND208 VOLT AND HIGH STATIC DRIVE 208 VOLT AND STANDARD DRIVE230/460/575 VOLT AND208 VOLT AND HIGH STATIC DRIVE 208 VOLT AND STANDARD DRIVE230/460/575 VOLT ANDSTANDARD 208 VOLT ANDDRIVE 208 VOLT AND208 VOLT AND HIGH STATIC DRIVE 208 VOLT AND STANDARD DRIVE230/460/575 VOLT AND208 VOLT AND HIGH STATIC DRIVE 208 VOLT AND STANDARD DRIVE230/460/575 VOLT ANDTABLE 16 BLOWER MOTOR AND DRIVE DATA TABLE 18 POWER EXHAUST PERFORMANCETABLE 17 STATIC RESISTANCES1 COMPRESSORS Johnson Controls Unitary Products NOTE 1 HACR Type per NECNOTE 1 HACR Type per NEC 349687-JTG-A-1007Johnson Controls Unitary Products NOTE 1 HACR Type per NECTABLE 22 PHYSICAL DATA TABLE 21 J**DJ VOLTAGE LIMITATIONS1MODELS J15DJFIGURE 3 - TYPICAL J**DJ FIELD WIRING DIAGRAM TABLE 23 SUPPLY FAN VFD WEIGHTS, IN LBSTABLE 24 ELECTRIC HEAT CORRECTION FACTORS TABLE 25 UTILITIES ENTRY DATA FIGURE 4 - FRONT VIEW DIMENSIONSHOLE USED FORDimensions listed are for side FIGURE 5 - REAR VIEW DIMENSIONSField Accessories for Side duct flange openings seeTABLE 26 MINIMUM CLEARANCES FIGURE 8 - TYPICAL UNIT APPLICATIONS FIGURE 7 - UNIT CENTER OF GRAVITYROOF JACK INSTALLATION ROOF CURB INSTALLATION SLAB ON GROUND INSTALLATIONTABLE 27 FOUR AND SIX POINT LOADS FIGURE 9 - FOUR AND SIX POINT LOADSTotal 4 Point Loads lbsFIGURE 11 - ROOF CURB DUCT OPENINGS DIMENSION FIGURE 10 - UNIT ROOF CURB DIMENSIONSFIGURE 12 - CUT AWAY OF ROOF CURB Page GENERAL GUIDE SPECIFICATIONSDESCRIPTION REFRIGERANT COMPONENTS OUTDOOR CONDENSER FAN ASSEMBLYUNIT CONTROLS GAS HEATING SECTION J**DJN MODELSELECTRIC HEATING J**DJC/E MODELS UNIT OPERATING CHARACTERISTICSELECTRICAL REQUIREMENTS STANDARD LIMITED WARRANTIESOTHER PRE-ENGINEEREDACCESSORIES AVAILABLE