Contents
20 75Tons 90 130Tons
American Standard Inc
Introduction
Contents
Field Installed Accessories
Features and Benefits
Standard Features
Optional Features
Reliability
Features Summary
Installation Ease
Easy to Service
Integrated Comfort System ICS
SimplifyingThe Comfort System
Tracer control points for IntelliPak Rooftops
Features and Benefits Optimum Building Comfort Control
FansWith Inlet GuideVanes
Variable Frequency Drives VFD
LowTorqueVariation
Proven DesignThroughTesting and Research
Trane 3-DScroll Compressor
Simple Design with 70% Fewer Parts
Application Considerations
Barometric Relief Dampers
Percent Exhaust System
SXHF, SFHF, SLHF, Sshf Units
Panel C Dimensions
Horizontal Discharge
20 75 tons SXHF, SFHF, SLHF, SSHF,
Table AC-4 SXHG, SLHG, Sshg Panel a and B Dimensions
Table AC-5 SXHG, SLHG, Sshg Z Dimensions
2508 17.4
Natural Gas Heating Considerations
High Capacity Evaporator Coil
Corrosive Atmospheres
Ventilation Override Sequences
Clearance Requirements
Acoustical Considerations
Duct Design
Figure AC-4 Unit Placement
Selection Procedure
HotWater Heating
DetermineTotalWinter Heating Load
Electric Heating System
Gas Heating System Natural Gas
Supply Fan Motor Sizing
Exhaust Fan Motor Sizing
Altitude Corrections
Selection Procedure
H F C
Model Number Description
1 1 567
RPM
General Data
Table GD-1- General Data 20-40Tons
20Ton 25Ton 30Ton 40Ton
Filters
Table GD-2 General Data 50-75Tons
Low Ambient Option Min. Outside AirTemp
50Ton 55Ton 60Ton 70Ton 75Ton
Table GD-3 General Data 90-130Tons
90Ton 105Ton 115Ton 130Ton
50% 100% Number/Size/Type 22/FC
Table GD-4 ARI Performance Data
Table GD-5 ARI Correction Multipliers
EER Iplv
Table PAF-1 Enthalpy of Saturated AIR
Performance Adjustment Factors
Performance 20Ton Data
Performance 25Ton Data
Performance 30Ton Data
431 551
Performance 40Ton Data
345 452 265 496 183
561 207 451 399 493 302 537 199 429 389 468 292
Performance 50Ton Data
Performance 55Ton Data
Performance 60Ton Data
AmbientTemperature F
Performance 70Ton Data
Flow
Performance 75Ton Data
Performance 90Ton Data
Performance 105Ton Data
115, 130Tons
Performance
Table PD-26 Steam Heating Capacities Q/ITD1
Performance Data
Table PD-24 Natural Gas Heating Capacities
Table PD-25- Natural Gas Heating Capacities
Table PD-28 20 to 75-Tons Electric Heat AirTemperature Rise
Table PD-29- 90To 130-Ton Electric Heat AirTemperature Rise
Table PD-30- Electric Heat KW Ranges
Table PD-31- HotWater Heating Capacities Q/ITD1
RPM BHP
20, 25Tons
Pressure
1409
4000 1037
1225 1271
1364
10 HP 1200 RPM 80% 1100 RPM
22.22
6000 883 927 968 1007 1043 1078
1400 RPM Wocfm 40% 1300 RPM 25 HP Inches 1200 RPM 50% 20 HP
Table PD-35 Supply Fan PerformanceWITH Inletvanes 30Ton
6000 890 933 974 1012 1049
1357 20.45
1000 RPM 10 HP
Dual 18 X 18 Fans Wocfm Entrance Losses
Ithout Exhaust
15 HP 1200 RPM Fan Curve Limits
40, 50, 55Tons
30.47
32.36
40, 50, 55Tons
1161 32.63 Cfm Total Static Pressure Std 250 500 750 000
800 14.86 820
Inches w.c
43.85
60, 70, 75Tons
60, 70, 75Tons
14000 729
800 RPM 20 HP 70% 15 HP
897 12.88 928 14.40 957 15.80 985
27000 646 690 732 773 808 840 10.71 872
904 13.34 28000 667 710 750 791 826 10.15 857
30000 708 749 787 826 10.13 861
1515 53.66 30000 1382 43.16 1406 45.18 1428
27000 1363 39.85 1388 41.68 1414 43.54 1437 45.26 1461
29000 1375 42.04 1398 43.93 1423 45.91 1445
1469 49.80 1491
897 13.19 928 14.59 958 16.05 987
27000 695 734 770 805 840
904 13.44 935 14.77 28000 718 756 791 825 10.28 858
891 12.90 922 14.26 952 15.65 29000 741 778 812 845
37000 1494
1579
32000 1442 49.55 1464
1496 55.23 1518 57.33 1541 59.53 1565
Performance 105,115,130Tons
100 900 RP
1623 76.74 1640 78.95
00 R 1500
1100
30.40 1216 32.05 1240 33.79 1086 23.37
25.35
26.95
32.56 1233 34.40 1255 36.26 1277 38.17 46000 1138 26.67
1641 79.40
1625 76.92 1643 79.30 46000 1624
Performance 20 -75Tons Data
Table PD-44 Component Static Pressure Drops in.W.G
SFHF/G SEHF/G SLHF/G SSHF/G
SLHF/G SSHF/G
Performance 90-130Tons Data
Table PD-45 Component Static Pressure Drops in.W.G
SFHF/G
Table PD-47 90-130 -Tons Supply Air Fan Drive Selections
Table PD-46 20-75 -Tons Supply Air Fan Drive Selections
BHP RPM
835 39.71 859
885 44.08 910 46.33 934 48.32
Table PD-51 90-130Tons -100% Exhaust Fan Drive Selections
Table PD-50 20-75Tons 100% Exhaust Fan Drive Selections
Table PD-52 20-75Tons 50% Exhaust Fan Performance
Table PD-53 90-130 Tons 50% Exhaust Fan Performance
18.97 835 19.86 859 20.87 885 22.05 910 23.18 934 24.17
Table PD-54- 50% Exhaust Fan Drive Selections
Controls
VAV Units
VAV Units Only
ZoneTemperature Control Unoccupied Zone Heating and Cooling
Supply Air Setpoint Reset
Reset based on outdoor air temperature
Reset based on zone temperature
CV Units
CV Units Only
Heating Gas Heating -Two-Stage
HotWater or Steam Heating
Unoccupied ZoneTemperature Control Cooling and Heating
Gas Heating Modulating Gas
Electric Heating
VAV/CV Units
Human Interface Panel H.I
Exhaust sequence C
Purge sequence D
Purge with duct pressure control E
Human Interface Panel Main Menu
Generic Building Automation System odule Gbas
Evaporator Coil Frost Protection
Occupied/Unoccupied input on the RTM
Occupied/Unoccupied Switching
Dry BulbTemperature Control of Economizer
Night Setback Sensors
Set 2. Rooftop units with Electric Heat
Electrical Service Sizing
Dual Source Power units 200V
Electrical Data
178 21.8 143
RLA1 LRA
FLA
Table ED-6 -Voltage Utilization Range
48.5 39.0 Motor Hp
48.5 39.0
Dimensional 20 75Tons
Detail B Covers 40, 60, 70 and 75 TON Units
Figure DD-1 20-75Ton Cooling Only Unit Dimensions Sahf
20 & 25 5-8 15/ 16 24-1 3 5/ 8 1-7 9
10’-1 7 ’-10 15/ 16 2’-0 ’-6
Sahf
Figure DD-5 90 130Tons Service Clearance
Dimensional 90 130Tons
Section B-B RT-PRC010-EN
Figure DD-6 90 130Ton Roof Curb Dimensions
Field Installed Sensors
Dimensional
Constant
Integrated Comfort System Sensors
CV and VAV
14740 15380 15930 16080
Weights
TableW-1 -Approximate OperatingWeights Lbs./Kg
SL/SS
Options
Options
Ambient Control
Agency Approval
Miscellaneous Options
Roof Curb
Electronic Zone Sensors
General
Mechanical Specifications
Unit Controller
Supply Fan 20 75Ton Units
90 130Ton Units
Controls
Percent cartridge filter option
Permanent cleanable wire mesh option
High efficiency throwaway option
Percent bag filter option
Ultra low-leak economizer dampers option
Outside Air General
Manual outside air option
Percent modulating economizer option
Heating System
Accessories
Literature Order Number
File Number PL-RT-S*HF/S*HG-20-130TONS-PRC0010-EN-10-2001
Supersedes RT-DS-8 05/98 Stocking Location Inland-LaCrosse