CAUA

Updated: Mar 4th, 2026

The CAUA gas-fired indoor upflow air handler—available as a power-vented or separated-combustion unit—provides heating with standard 100% return air or optional makeup air for indoor spaces.

Marketing

Reznor HVAC products

RZAPLCNAREVK

DOWNLOAD

Marketing (French)

*Produits de HVAC de Reznor

RZAPLCFC

DOWNLOAD

Warranty

Warranty

1036195

DOWNLOAD

Technical Specifications

Technical specifications list

CAUA-TSL

DOWNLOAD

CAUA Dimensional Drawings

CAUADIMS

OPEN

Wiring diagram

CAUA-WD

DOWNLOAD

Installation Instructions

Installation, operation, and maintenance

164771

DOWNLOAD

Installation Instructions (French)

Installation, fonctionnement et entretien

235992

DOWNLOAD

Replacement Parts List

Replacement parts

CAUA-RPL

DOWNLOAD

Replacement parts policy

PARTS-POLICY

DOWNLOAD

Functional replacements for ignition systems, gas valves, and Maxitrol control systems for units manufactured before June 2015

GAS-CTRL-RPL

DOWNLOAD

Replacement Kits

Replacement kits for current and discontinued models

REZNOR-RPL

DOWNLOAD

Options/Conversion Kits

Outside/return air mixing box installation (options GA6 and GA8)

170640

DOWNLOAD

Return air filter cabinet installation (CW4-CW16)

166162

DOWNLOAD

Gas conversion kit installation

170635

DOWNLOAD

Images

Reznor Air Handler (TIF)

DOWNLOAD

Reznor Air Handler install (TIF)

DOWNLOAD

Can't find what you're looking for? Let us know

For partner files login here