Trane VariTrane LDEF User Manual

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Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
September 2021
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Installation, Operation, and Maintenance
VariTrane™™ Variable Air Volume
(VAV) Terminal Air Units
Shutoff, Fan Powered, and CoolSense™
Sensible Cooling
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DDuuaall--DDuucctt:: VDDF
FFaann--PPoowweerreedd:: VPCF, VPEF, VPWF, VSCF, VSEF, VSWF
FFaann--PPoowweerreedd LLooww HHeeiigghhtt:: LPCF, LPEF, LPWF, LSCF, LSEF, LSWF
CChhiilllleedd WWaatteerr SSeennssiibbllee CCoooolliinngg TTeerrmmiinnaall UUnniittss:: LDCF, LDEF, LDWF

Trane VariTrane LDEF Specifications

General

Brand	Trane
Model	VariTrane LDEF
Category	Fan
Language	English

Summary

Model Number Breakdown

Single-Duct VAV Unit Model Numbers

Details the model number configuration for single-duct VAV units.

Dual-Duct VAV Unit Model Numbers

Details the model number configuration for dual-duct VAV units.

Fan-Powered VAV Unit Model Numbers

Details the model number configuration for fan-powered VAV units.

Chilled Water Sensible Cooling Terminal Unit Model Numbers

Details the model number configuration for chilled water units.

Unit Information and Types

Unit Installation Guidelines

Electrical and Structural Safety Warnings

Provides warnings for hazardous voltage and proper structural support.

Single-Duct VAV Unit Installation

Recommendations for hanging and installing single-duct VAV units.

Dual-Duct VAV Unit Installation

Recommendations for supporting and installing dual-duct VAV units.

Temperature Sensor Installation

Instructions for installing discharge duct and electronic duct sensors.

Unit Setup and Configuration

Wiring Diagrams

Electric Heater Control Box Wiring

Wiring diagram for single duct, single phase electric heater control box.

Single Duct Wiring Diagrams

Wiring diagrams for single duct units with various stage configurations.

Fan-Powered Unit Wiring Diagrams

Wiring diagrams for fan-powered units with different motor and stage configurations.

Control Box Wiring Diagrams

Wiring diagrams for control boxes with PSC, ECM, and ECV motors.

Maintenance Procedures

Fan Motor Replacement Warning

Provides warnings and steps for fan motor replacement.

SCR Assembly Maintenance

Information on SCR assembly mounting and troubleshooting.