Models 1952, 1953 | Aprilaire 1953 & 1972 instruction

Ultraviolet Germicidal Lamps

Model 1952

24” Rooftop Unit

Model 1953

32” Rooftop Unit

Model 1972

Rooftop Unit, Internal Mount

Safety, Installation and Service Manual

Models 1952, 1953 & 1972

READ AND SAVE THIS MANUAL

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Aprilaire 1953 & 1972 service manual Models 1952, 1953, Read and Save this Manual

Contents

Read and Save this Manual Models 1952, 1953 Safety Instructions Table of Contents II. Application III. Installation Determine Mounting Location Installation of External Mount Rooftop Units Models 1952 Make Electrical Connections Install the Unit Base Model 1952/1953 Lamp Installation Install Lamp Check Lamp Operation Installation of Internal Mount Rooftop Units Model More details Model 1972 Wiring Diagram IV. Annual Lamp Replacement VII. Lamp Replacement Record VI. TroubleshootingList of Replacement Parts Lamp Disposal Warranty Registration VIII. Limited Warranty