Inc. Air Conditioner User Manual

349687-JTG-A-1007
2 Johnson Controls Unitary Products
TABLE OF CONTENTS
DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . 3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . 5
FIELD-INSTALLED ACCESSORIES. . . . . . . . . . . . . 7
GUIDE SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 37
LIST OF FIGURES
Fig. # Pg. #
1 UNIT CUTAWAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 ALTITUDE/TEMPERATURE CONVERSION
FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 TYPICAL J**DJ FIELD WIRING DIAGRAM . . . . . . . . 29
4 FRONT VIEW DIMENSIONS . . . . . . . . . . . . . . . . . . . 30
5 REAR VIEW DIMENSIONS . . . . . . . . . . . . . . . . . . . . 31
6 UNIT DIMENSIONS J15, 18, 20 & 25 DJ
(RAINHOOD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7 UNIT CENTER OF GRAVITY. . . . . . . . . . . . . . . . . . . 33
8 TYPICAL UNIT APPLICATIONS . . . . . . . . . . . . . . . . 33
9 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 34
10 UNIT ROOF CURB DIMENSIONS . . . . . . . . . . . . . . . 35
11 ROOF CURB DUCT OPENINGS DIMENSION . . . . . 35
12 CUT AWAY OF ROOF CURB . . . . . . . . . . . . . . . . . . 35
13 TYPICAL UNIT WIRING DIAGRAM . . . . . . . . . . . . . . 36
LIST OF TABLES
Tbl. # Pg. #
1 SOUND POWER RATING. . . . . . . . . . . . . . . . . . . . . . . 9
2 CAPACITY RATINGS - (ARI 360) . . . . . . . . . . . . . . . . . 9
3 GAS HEAT RATIINGS. . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 COOLING CAPACITIES FOR J15DJ . . . . . . . . . . . . . 10
5 COOLING CAPACITIES FOR J18DJ . . . . . . . . . . . . . 11
6 COOLING CAPACITIES FOR J20DJ . . . . . . . . . . . . . 12
7 COOLING CAPACITIES FOR J25DJ . . . . . . . . . . . . . 13
Tbl. #
Pg. #
8 ALTITUDE CORRECTION FACTORS . . . . . . . . . . . . 14
9 SUPPLY AIR BLOWER PERFORMANCE (15 TON) -
COOLING ONLY 180 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 SUPPLY AIR BLOWER PERFORMANCE (17.5 TON) -
COOLING ONLY 210 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 SUPPLY AIR BLOWER PERFORMANCE (20 TON) -
COOLING ONLY 240 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 SUPPLY AIR BLOWER PERFORMANCE (15 TON) -
GAS HEAT 180 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
13 SUPPLY AIR BLOWER PERFORMANCE (17.5 TON) -
GAS HEAT 210 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
14 SUPPLY AIR BLOWER PERFORMANCE (20 TON) -
GAS HEAT 240 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
15 SUPPLY AIR BLOWER PERFORMANCE (25 TON) -
GAS HEAT 300 MBH - BOTTOM DUCT
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
16 BLOWER MOTOR AND DRIVE DATA . . . . . . . . . . . . 23
17 STATIC RESISTANCES . . . . . . . . . . . . . . . . . . . . . . . 23
18 POWER EXHAUST PERFORMANCE . . . . . . . . . . . . 23
19 J**DJ ELECTRICAL DATA WITHOUT POWERED
CONVENIENCE OUTLET. . . . . . . . . . . . . . . . . . . . . . 24
20 J**DJ ELECTRICAL DATA WITH POWERED
CONVENIENCE OUTLET. . . . . . . . . . . . . . . . . . . . . . 26
21 J**DJ VOLTAGE LIMITATIONS . . . . . . . . . . . . . . . . . 28
22 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
23 SUPPLY FAN VFD WEIGHTS, IN LBS. . . . . . . . . . . . 29
24 ELECTRIC HEAT CORRECTION FACTORS. . . . . . . 29
25 UTILITIES ENTRY DATA . . . . . . . . . . . . . . . . . . . . . . 30
26 MINIMUM CLEARANCES. . . . . . . . . . . . . . . . . . . . . . 32
27 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 34