127915-YIM-A-0405
Unitary Products Group
3
LIST OF FIGURES
Fig. #
Pg. #
1
TYPICAL RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2
CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . . . . . 18
3
FIXED OUTDOOR AIR DAMPER . . . . . . . . . . . . . . . . 20
4
RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . . 20
5
TYPICAL FIELD WIRING . . . . . . . . . . . . . . . . . . . . . . 21
6
EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF . . . . . . . . . . . . . . . . . . . . . . . 24
7
BOTTOM SUPPLY CONNECTION
EXTERNAL SHUT-OFF . . . . . . . . . . . . . . . . . . . . . . . 24
8
VENT AND COMBUSTION AIR HOOD . . . . . . . . . . . 25
9
ENTHALPY SETPOINT ADJUSTMENT . . . . . . . . . . . 27
10 HONEYWELL ECONOMIZER CONTROL W7212 . . . 27
11 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 28
12 DIMENSIONS & CLEARANCES 15/20/25 TON . . . . . 36
13 ALTITUDE/TEMPERATURE CONVERSION
FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
14 CHARGING CHART - 15 TON . . . . . . . . . . . . . . . . . . 51
15 CHARGING CHART - 20 TON . . . . . . . . . . . . . . . . . . 51
16 CHARGING CHART - 25 TON . . . . . . . . . . . . . . . . . . 52
17 BELT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . 52
18 PRESSURE DROP ACROSS A DRY
INDOOR COIL VS SUPPLY AIR CFM FOR
ALL UNIT TONNAGES . . . . . . . . . . . . . . . . . . . . . . . . 53
19 REHEAT CONTROL BOARD . . . . . . . . . . . . . . . . . . . 57
20 REHEAT CONTROLS - PART 1 . . . . . . . . . . . . . . . . . 58
21 REHEAT CONTROLS - PART 2 . . . . . . . . . . . . . . . . . 58
22 SYSTEM PIPING SCHEMATIC . . . . . . . . . . . . . . . . . 59
23 GAS VALVE PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . 61
24 GAS VALVE AND CONTROLS. . . . . . . . . . . . . . . . . . 63
25 TYPICAL GAS VALVES . . . . . . . . . . . . . . . . . . . . . . . 64
26 PROPER FLAME ADJUSTMENT . . . . . . . . . . . . . . . . 65
27 TYPICAL FLAME APPEARANCE . . . . . . . . . . . . . . . . 65
LIST OF TABLES
Tbl. #
Pg. #
1
UNIT APPLICATION DATA. . . . . . . . . . . . . . . . . . . . . . .17
2
CONTROL WIRE SIZES . . . . . . . . . . . . . . . . . . . . . . . . .22
3
ELECTRIC HEAT APPLICATION DATA . . . . . . . . . . . .22
4
GAS HEAT APPLICATION DATA. . . . . . . . . . . . . . . . . .23
5
PIPE SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6
FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . . .28
7
PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
8
DR ELECTRICAL DATA - STANDARD DRIVE
MOTOR W/O POWERED CONVENIENCE OUTLET . .30
9
DR ELECTRICAL DATA - HIGH STATIC DRIVE
MOTOR W/O POWERED CONVENIENCE OUTLET . .31
10 DR ELECTRICAL DATA - LOW AIRFLOW DRIVE
MOTOR W/O POWERED CONVENIENCE OUTLET . .32
11 DR ELECTRICAL DATA - STANDARD DRIVE
MOTOR WITH POWERED CONVENIENCE OUTLET .33
12 DR ELECTRICAL DATA - HIGH STATIC DRIVE
MOTOR WITH POWERED CONVENIENCE OUTLET .34
13 DR ELECTRICAL DATA - LOW AIRFLOW DRIVE
MOTOR WITH POWERED CONVENIENCE OUTLET .35
14 ALTITUDE CORRECTION FACTORS . . . . . . . . . . . . . .38
15 DR180 BLOWER PERFORMANCE -
STANDARD DRIVE (COOLING ONLY) . . . . . . . . . . . . .40
16 DR180 BLOWER PERFORMANCE -
STANDARD DRIVE (GAS HEAT) . . . . . . . . . . . . . . . . . .41
17 DR180 BLOWER PERFORMANCE -
HIGH STATIC DRIVE (COOLING ONLY). . . . . . . . . . . .42
18 DR180 BLOWER PERFORMANCE -
HIGH STATIC DRIVE (GAS HEAT) . . . . . . . . . . . . . . . .43
19 DR240 BLOWER PERFORMANCE -
STANDARD DRIVE (COOLING ONLY) . . . . . . . . . . . . .44
20 DR240 BLOWER PERFORMANCE -
STANDARD DRIVE (GAS HEAT) . . . . . . . . . . . . . . . . . .45
21 DR240 BLOWER PERFORMANCE -
HIGH STATIC DRIVE (COOLING ONLY). . . . . . . . . . . .46
22 DR240 BLOWER PERFORMANCE -
HIGH STATIC DRIVE (GAS HEAT) . . . . . . . . . . . . . . . .47
23 DR300 BLOWER PERFORMANCE -
STANDARD DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
24 DR300 BLOWER PERFORMANCE -
HIGH STATIC DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . .49
25 STATIC RESISTANCES . . . . . . . . . . . . . . . . . . . . . . . . .50
26 POWER EXHAUST PERFORMANCE . . . . . . . . . . . . . .50
27 BLOWER MOTOR AND DRIVE DATA . . . . . . . . . . . . . .50
28 LIMIT CONTROL SETTING . . . . . . . . . . . . . . . . . . . . . .60
29 ELECTRIC HEAT ANTICIPATOR SETPOINTS . . . . . . .61
30 LIMIT CONTROL SETTING . . . . . . . . . . . . . . . . . . . . . .63
31 GAS HEAT ANTICIPATOR SETPOINTS . . . . . . . . . . . .63
32 GAS RATE - CUBIC FEET PER HOUR . . . . . . . . . . . . .66
33 UNIT CONTROL BOARD FLASH CODES. . . . . . . . . . .73
34 REHEAT CONTROL BOARD FLASH CODES. . . . . . . .74