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920-159-04

Table of Contents

Your Safety and the safety of others ............................................................................................................................... 3

Installation Recommendations .................................................................................................................................... 4

General Specifications

Model Number Identification Guide ................................................................................................................................. 5

VERT-I-PAK Chassis Specifications................................................................................................................................ 5

Electrical Data ..............................................................................................................................................................5-6

Installation

Utility Closet Dimensions................................................................................................................................................. 7

Wall Plenum & Architectural Louver Installation .............................................................................................................. 8

Drain Pan Installation ...................................................................................................................................................... 9

Condensate Disposal System ......................................................................................................................................... 9

Indoor Return Air Grille Installation.................................................................................................................................. 9

Indoor Airflow Data ........................................................................................................................................................ 10

Chassis Installation ....................................................................................................................................................... 10

Remote Thermostat Operation

Remote Thermostat....................................................................................................................................................... 11

Thermostat Connections ............................................................................................................................................... 11

Desk Control Terminals ................................................................................................................................................. 11

Auxiliary Fan Control ..................................................................................................................................................... 11

Electrical and Thermostat Wiring Diagrams .................................................................................................................. 12

Chassis Final Connection

Final Installation checklist.............................................................................................................................................. 13

Chassis Operation

Fresh Air Door ............................................................................................................................................................... 13

Low Ambient Protection................................................................................................................................................. 13

Room Freeze Protection ............................................................................................................................................... 13

Emergency Heat Override............................................................................................................................................. 13

Emergency Heat Operation........................................................................................................................................... 13

Service

Servicing/Chassis Quick Changeouts ........................................................................................................................... 14

Routine Maintenance .................................................................................................................................................... 14

Error Codes ................................................................................................................................................................... 15

Factory Dipswitch Configuration.................................................................................................................................... 15

Accessories ................................................................................................................................................................... 16

Warranty ....................................................................................................................................................................... 17