Later Design Sequence
Models
With 3-DTMScroll Compressors
 Literature Change History
Overview of Manual
 Table of Contents
 General Information
Model Number Description
 Digit 3 Unit Airflow
 General Information Commonly Used Acronyms
Fiberglass Wool
Hazard Identification
Unit Description
 General Information
Supply AIR
 Ventilation Control Module VCM Design special option only
CFM
 Lead-Lag
 Constant Volume CV Units
 Variable Air Volume VAV Units
Unit Component Layout and Shipwith Locations
 General Information Space Temperature Averaging
 Control Module Locations for SHF 40, 60, 70 & 75 Ton Units
 Table of Contents
 Unit Inspection As soon as the unit arrives at the job site
Unit Dimensions & Weight Information
No Step Surface
Storage
Page
 Sahf Cooling-Only Units 20 thru 75 Ton
 Unit Base Dimensional Data Dimensions
Installation
Unit Dimensional Data Dimensions Size
Electrical Entrance Data Unit Dimensions
 SEHF, SFHF, SLHF, SSHF, Sxhf Units 20 thru 75 Ton
 Electrical Entrance Data Unit Dimensions Size
Unit Base Dimensional Data Dimensions Size
Unit Dimensions Size
Unit Size Furnace Dimensions Note Size/MBH Length Height
 SHG Cooling & Heating Units 90 through 130 Ton
 Slhf
Sahf
Sehf
Sshf
 SE,SL
Roof Curb and Ductwork
Sahf Sshf Sfhf Sxhf Sehg Sfhg Sxhg HF/G
 Heavy Objects
Installation Unit Rigging & Placement
If a Trane Curb Accessory Kit is not used
Pitch Pocket Location
 Typical Unit Rigging Unit Base & Roof Curb Section
 General Unit Requirements
Main Electrical Power Requirements
Installation Field Installed Control Wiring
Requirements for Electric Heat Units
 Installation
 Condensate Drain Connections
Page
 Removing Supply and Exhaust Fan Shipping Channels Motors 5Hp
Page
 Installation Sensor & Tubing Installation
Units with StatitracTM
 Hazardous Gases and Flammable Vapors
Connecting the Gas Supply Line to the Furnace Gas Train
Gas Heat Units SFH
 350 MBH 850 MBH
 1000 MBH Modulating 500 MBH 1000 MBH
Flue Assembly Installation
Flue Assembly
Hot Water Heat Units SLH
 Steam Heat Units SSH
SSHG-90
 Through 130 Ton units
Page
 Live Electrical Components
Hazardous Voltage
Use Copper Conductors Only
 Typical Field Power Wiring 20 thru 75 Ton
Page
 Exhaust Fan Motor
Supply Fan Motor FLA ea Horsepower
Condenser Fans Total FLA
FLA
 Blower Motor Sfhf Only
Combustion
Unit Tonnage No. of Compressors Tonnage Type Designation
 = Current of the Largest Motor Compressor or FAN Motor
Single Source Power 380V, 415V, 460V,
Load Definitions Load
On the Next
 Dual Source Power units 200V
Power Wire Sizing and Protection Device Equations
Disconnect Switch Sizing DSS
MCA = 1.25 x Load MOP = 1.25 x Load
 Installation Controls using DC Analog Input/Outputs
Controls using 24 VAC
Constant Volume System Controls
 Variable Air Volume System Controls
Constant Volume or Variable Air Volume System Controls
 Pressurize
Depressurize
 Purge
Fire
 Refer to Wiring Notes on
16A
 16B
Page
 17A
 17B
 VAV Setpoint
Input Voltage
 Table of Contents
 Cooling Sequence of Operation
Sequence of Operation
 Unit Start-Up
Gas Heating Sequence of Operation
Fenwal Ignition System
Propane Gas
 Flame Failure
Modulating Gas Sequence of Operation
Full and Limited Modulating Gas Furnace
 Unit Start-Up Wet Heat Sequence of Operation
Electric Heat Sequence of Operation
Freeze Protection
 Compressor Damage
Unit Power
Electrical Phasing
 Voltage Supply
Voltage Supply and Voltage Imbalance
Voltage Imbalance
 Service Test Guide for Component Operation
IGV
 Supply FAN
 Verifying Proper Fan Rotation
System Airflow Measurements Constant Volume Systems
Rotating Components
If all of the fans are rotating backwards
 Condenser Fan Location with Human Interface Designator
 Variable Air Volume Systems
 Optional with all Units
Exhaust Airflow Measurement
TraqTM Sensor Airflow Measurement
Optional with all units equipped with an economizer
 20 & 25 Ton Supply Fan Performance without Inlet Guide Vanes
Ton Supply Fan Performance without Inlet Guide Vanes
 Wocfm 1200 RPM 40 HP 40%
 300 RP
 Standard Evaporator Coil
 20000 30000 40000 50000 60000
 Drop
 20 & 25 Ton Supply Fan Performance with Inlet Guide Vanes
Ton Supply Fan Performance with Inlet Guide Vanes
 15 HP 900 RPM 80% 10 HP
 RPM
 Through 75 Ton Component Static Pressure Drops Inches W.C
AIR
 AIR
STD
CFM RPM BHP
 10,000
HF-C20 000
HF-C25 000
HF-C30 000
 RPM BHP BHP RPM BHP RPM BHP
AIR RPM BHP
 Exhaust Air Dampers
Economizer Damper Adjustment
To Adjust the Fresh Air Damper Travel
Fresh Air & Return Air Damper Operation
 Configuration
Damper Travel Adjustment Position
Connecting Rod Crank Arm Hole
Ton Units
 All Systems
Fresh Air & Return Air Linkage Adjustment
Compressor Start-Up
70 & 105 Ton
 At Shutdown
Compressor Operational Sounds
Refrigerant Charging
At Low Ambient Start-Up
 Compressor Locations
 Cooling Cycle Pressure Curve
 340 320
 Full Load
 380 360 340 OD Ambient
 Full Load
 380 360 340 OD Ambient 320
 240 220
 380 360 OD Ambient
 Charging by Subcooling
Thermostatic Expansion Valves
Low Ambient Dampers
 Electric, Steam and Hot Water Start-Up
Gas Furnace Start-Up
 Low-Fire Adjustment 500 MBH, 850 & 1,000 MBH only
High-Fire Adjustment
Combustion Air Adjustment O2
Two Stage Gas Furnace
 Firing Manifold
MBH
CO2 Pressure
 Heat Exchanger
Full Modulating Gas Furnace
Unit control
 Modulating Gas Regulator
Limited Modulating Gas Furnace Unit Start-Up
Modulating Gas Regulator Legend
 Unit Start-Up Final Unit Checkout
Typical Gas Furnace
 Service & Maintenance
 Service & Maintenance
Unit Internal Fuse Replacement Data & VFD Factory Settings
 Wet Heat Coil Fin Data Total Coil Fins
Unit Model Box-type Note Qty
Qty Size of each
Model Type
 Service & Maintenance
 Fan Belt Adjustment
 Suction Line Filter/Drier Installation
Scroll Compressor Replacement
Gripbelts Gripnotch Cross Small P.D Section Range Min Max
 VFD Programming Parameters
Hazardous Voltage! w/Capacitors
Supply and Exhaust Fan VFD Programming Parameters
 Filters
Service & Maintenance Monthly Maintenance
Cooling Season
 Coil Cleaning
Heating Season
 Contains Refrigerant
Coil Cleaners
Steam or Hot Water Coils
 Final Process
 Index
 See Figure Gate type valve 36-37 See -12 Figure
 See VOM Contacts -16 Figure
 Warranty and Liability Clause
Equipment Damage From Ultraviolet UV Lights
 115
 116