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262292-YTG-B-0107
2 Unitary Products Group
TABLE OF CONTENTS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . .3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . . . . . .8
FIELD-INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . . .9
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . .53
LIST OF FIGURES
Fig. # Pg. #
1 UNIT CUTAWAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 REHEAT CONTROL BOARD . . . . . . . . . . . . . . . . . . . . . 6
3 REHEAT CONTROLS - PART 1. . . . . . . . . . . . . . . . . . . 7
4 REHEAT CONTROLS - PART 2. . . . . . . . . . . . . . . . . . . 7
5 WR180 MOISTURE REMOVAL - ALT. MODE. . . . . . 21
6 WR180 MOISTURE REMOVAL - NORMAL MODE. . 21
7 WR240 MOISTURE REMOVAL - ALT. MODE. . . . . . 22
8 WR240 MOISTURE REMOVAL - NORMAL MODE. . 22
9 WR300 MOISTURE REMOVAL - ALT. MODE. . . . . . 23
10 WR300 MOISTURE REMOVAL - NORMAL MODE. . 23
11 ALTITUDE/TEMPERATURE CONVERSION
FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
12 UNIT DIMENSIONS WR180, 240 & 300
(FRONT VIEW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
13 REAR VIEW DIMENSIONS . . . . . . . . . . . . . . . . . . . . 47
14 UNIT DIMENSIONS WR180, 240 & 300
(RAINHOOD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
15 UNIT CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . 49
16 TYPICAL UNIT APPLICATIONS . . . . . . . . . . . . . . . . 49
17 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 50
18 UNIT ROOF CURB DIMENSIONS . . . . . . . . . . . . . . . 51
19 ROOF CURB DUCT OPENINGS DIMENSION . . . . . 51
20 CUT AWAY OF ROOF CURB . . . . . . . . . . . . . . . . . . 51
21 TYPICAL FIELD WIRING . . . . . . . . . . . . . . . . . . . . . . 52
LIST OF TABLES
Tbl. # Pg. #
1 SOUND POWER RATING . . . . . . . . . . . . . . . . . . . . . 11
2 CAPACITY RATINGS - (ARI 360) . . . . . . . . . . . . . . . 11
3 GAS HEAT RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 COOLING CAPACITIES FOR WR180 . . . . . . . . . . . . 12
5 COOLING CAPACITIES FOR WR240 . . . . . . . . . . . . 14
6 COOLING CAPACITIES FOR WR300 . . . . . . . . . . . . 16
7 COOLING CAPACITIES FOR WR180 (ALTERNATE
REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8 COOLING CAPACITIES FOR WR240 (ALTERNATE
REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Tbl. # Pg. #
9 COOLING CAPACITIES FOR WR300 (ALTERNATE
REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10 ALTITUDE CORRECTION FACTORS. . . . . . . . . . . . . 24
11 WR180 BLOWER PERFORMANCE - 15 TON STD.
DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 26
12 WR180 BLOWER PERFORMANCE - 15 TON STD.
DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 27
13 WR180 BLOWER PERFORMANCE - 15 TON HIGH
STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 28
14 WR180 BLOWER PERFORMANCE - 15 TON HIGH
STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 29
15 WR240 BLOWER PERFORMANCE - 20 TON STD.
DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 30
16 WR240 BLOWER PERFORMANCE - 20 TON STD.
DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 31
17 WR240 BLOWER PERFORMANCE - 20 TON HIGH
STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 32
18 WR240 BLOWER PERFORMANCE - 20 TON HIGH
STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 33
19 WR300 BLOWER PERFORMANCE - 25 TON STD.
DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 34
20 WR300 BLOWER PERFORMANCE - 25 TON STD.
DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 35
21 WR300 BLOWER PERFORMANCE - 25 TON HIGH
STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 36
22 WR300 BLOWER PERFORMANCE - 25 TON HIGH
STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 37
23 BLOWER MOTOR AND DRIVE DATA . . . . . . . . . . . . 38
24 STATIC RESISTANCES. . . . . . . . . . . . . . . . . . . . . . . . 38
25 POWER EXHAUST PERFORMANCE . . . . . . . . . . . . . 38
26 WR ELECTRICAL DATA - STANDARD DRIVE
MOTOR W/O POWERED CONV. OUTLET. . . . . . . . . 39
27 WR ELECTRICAL DATA - HIGH STATIC DRIVE
MOTOR W/O POWERED CONV. OUTLET. . . . . . . . . 40
28 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE
MOTOR W/O POWERED CONV. OUTLET. . . . . . . . . 41
29 WR ELECTRICAL DATA - STANDARD DRIVE
MOTOR WITH POWERED CONV. OUTLET. . . . . . . . 42
30 WR ELECTRICAL DATA - HIGH STATIC DRIVE
MOTOR WITH POWERED CONV. OUTLET. . . . . . . . 43
31 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE
MOTOR WITH POWERED CONV. OUTLET. . . . . . . . 44
32 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
33 SUPPLY FAN VFD WEIGHTS, IN LBS. . . . . . . . . . . . . 45
34 UTILITIES ENTRY DATA . . . . . . . . . . . . . . . . . . . . . . . 46
35 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 48
36 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . . 50