Trane IntelliPak WEHE Series - Page 71

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System Start-up

RT-SVX35H-EN 71

Figure 40. (continued from previous page) Typical modulating gas heat schematic & connections diagram

Main Page

Table of Contents4
Model Number Descriptions5
General Information7
Unit Nameplate Locations7
Precautionary Measures7
Commonly Used Acronyms7
Unit Description7
Constant Volume (CV) Units12
Variable Air Volume (VAV) Units12
Unit Inspection16
Storage16
Unit Clearances16
Unit Dimensions & Weight Information16
Roof Curb and Ductwork27
Pitch Pocket Location27
Unit Rigging & Placement28
General Unit Requirements30
Main Electrical Power Requirements30
Field Installed Control Wiring30
Requirements for Electric Heat Units30
Requirements for Gas Heat30
Requirements for Hot Water Heat (WLHE)31
Requirements for Steam Heat (WSHE)31
O/A Pressure Sensor and Tubing Installation31
Condensate Drain Connection31
Shipping Fasteners32
O/A Sensor & Tubing Installation33
Gas Heat Units (WFHE)34
Modulating37
Steam Heat Units (WSHE)38
Chilled Water Units41
Disconnect Switch External Handle (Factory Mounted Option)41
Electric Heat Units (WEHE)42
Power Wire Sizing and Electrical Service Sizing Equations47
Constant Volume System Controls49
Variable Air Volume System Controls49
Constant Volume or Variable Air Volume System Controls49
System Start-Up64
Cooling Sequence of Operation (Intellipak Controls Only)64
Gas Heating Sequence of Operation65
Modulating Gas Sequence of Operation66
Voltage Supply and Voltage Imbalance74
Verifying Proper Fan Rotation76
System Airflow Measurements76
Variable Air Volume Systems77
Exhaust Airflow Measurement78
With All Units)78
Traq™ Sensor Airflow Measurement79
Economizer)79
Economizer Damper Adjustment90
Thermostatic Expansion Valves93
Electric, Steam and Hot Water Start-Up93
Systems)93
Gas Furnace Start-Up94
Two Stage Gas Furnace94
Heat Exchanger97
Unit Control97
Limited Modulating Gas Furnace98
Service & Maintenance100
VFD Programming Parameters103
Fan Belt Adjustment104
Monthly Maintenance112
Wiring Matrix115
Warranty and Liability Clause116
Commercial Equipment Rated 20 Tons and Larger and Related Accessories116
Index117

Trane IntelliPak WEHE Series - Page 71

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