Aprilaire 8126A User Manual

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Model 8120X Digital
Ventilation Controller
Installation and Operation Manual

Aprilaire 8126A Specifications

General

Humidity Control	Yes
Operating Voltage	24 VAC
Mounting	Wall Mount
Model	8126A
Compatibility	Aprilaire
Display	Digital
Power Supply	24V AC
Operating Temperature	32°F to 122°F (0°C to 50°C)
Humidity Sensor Accuracy	±5% RH
Warranty	5 years

Summary

Warnings and Cautions

Package Contents

Specifications

Mounting the Controller and Outdoor Temperature Sensor

Mounting to an 8140NC Ventilator

Instructions for mounting the control to the housing of the Model 8140NC when humidity limits are not used.

Mounting the Controller to the Return Ductwork

Instructions for mounting the controller to ductwork, specifying location and installation methods for sheet metal or duct board.

Mounting the Controller in a Closet Return Plenum

Details on mounting the controller in a closet return plenum, focusing on sensing return air humidity.

Mounting the Outdoor Temperature Sensor

Steps to drill a hole and install the outdoor sensor into the fresh air inlet hood ductwork.

Wiring

Operation

Set Up Menu

Test Mode

Rater/Inspector Verification

Sequence of Operation – “CODE” Setting

Sequence of Operation – “COMFORT" Setting

Limited Warranty

Warranty Registration

Instructions on how to register the Aprilaire product online or by mail.