Aprilaire 8145NC User Manual

MODEL 8145 FRESH AIR VENTILATOR MODEL 8145NC FRESH AIR VENTILATOR
SAFETY INSTRUCTIONS
WARNING
1. 120 Volts may cause serious injury from electric shock. Disconnect electrical power before starting installation or servicing. Leave power
disconnected until installation/service is completed.
2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling duct work.
CAUTION
1. Read all instructions before beginning installation.
2. Improper installation may cause property damage or injury. Installation, service, and maintenance must be performed by a qualified service
technician.
READ AND SAVE THESE INSTRUCTIONS
VENTILATION CONTROLLER
FILTER
COVER
VENTILATION TERMINALSLOW PRESSURE
PORT
HIGH PRESSURE
PORT
INLET COLLAR AND
NORMALLY CLOSED
POWER DAMPER
OUTLET
COLLAR
SURFACE MOUNT
BRACKET LOCATION
JOIST MOUNT
BRACKET LOCATION
TABLE OF CONTENTS
Safety Instructions ...............................................1
Introduction and Compliance Statement ...........................2
Specifications ...................................................2
Install Electrical Outlet............................................2
Ventilator Location and Orientation................................3
Mount the Ventilator .............................................3
Mount Intake Hood ..............................................4
Install Ductwork .................................................4
Model 8145NC – Wiring to Various Controls.........................5
Model 8145NC – Test Mode .......................................6
Model 8145NC – Sequence of Operation............................6
Model 8145 – Wiring the Control to the HVAC System ...............6
Model 8145 – Connecting the Control to the Ventilator...............7
Model 8145 – Operation ..........................................7
Model 8145 – Test Mode ..........................................8
Measure Delivered Airflow ........................................8
Model 8145 – Set Up .............................................9
Model 8145 – Rater/Inspector Verification .........................10
Model 8145 – Sequence of Operation .............................10
Filter Cleaning...................................................11
Internal Schematics ..............................................11
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Model 8145 and 8145NC
Fresh Air Ventilator
Installation and Operating Instructions
10014353 B2208589A 4.20
English 1

Aprilaire 8145NC Specifications

General

Brand	Aprilaire
Model	8145NC
Category	Fan
Language	English

Summary

Safety Instructions

Warning Notices

Critical safety warnings regarding electrical shock and sharp edges.

Caution Notices

Precautions for proper installation and service by qualified technicians.

Introduction and Compliance

Compliance Standards

Lists standards met by the ventilators when properly installed.

Specifications and Dimensions

Performance Specifications

Details airflow and efficacy at different static pressures.

Unit Dimensions

Provides physical measurements of the ventilator.

Electrical Outlet Installation

Ventilator Location and Orientation

Mounting Clearance Requirements

Specifies minimum distances for safe operation and access.

Mounting Methods and Brackets

Explains how to attach the ventilator using provided brackets.

Intake Hood Installation

Ductwork Installation

Ducting Connections

Guides ducting from the intake hood to the unit and unit to HVAC system.

Model 8145NC Wiring to Controls

Wiring to IAQ Control Module

Diagram for connecting to Aprilaire IAQ control models.

Wiring to Thermostat (8620/8620W)

Diagram for connecting to specific Aprilaire thermostats.

Wiring to Digital Controller (8120X)

Diagram for connecting to the Model 8120X controller.

Model 8145NC Test Mode

Model 8145NC Sequence of Operation

Model 8145 Wiring to HVAC System

Control Removal and Wiring Preparation

Steps to prepare and run wiring between control and HVAC.

Wiring to Furnace System

Wiring diagram for connecting to a furnace/AC system.

Model 8145 Wiring to Heat Pump

Connecting Control to Ventilator

Model 8145 Operation Overview

Control Display and Basic Functions

Explains the ventilator control display and button functions.

Model 8145 Test Mode Procedure

Measure Delivered Airflow

Airflow Measurement Technique

How to use a pressure gauge to measure airflow.

Airflow Conversion and Interpolation

Methods to convert pressure readings to CFM values.

Model 8145 Setup Menu

Navigating the Setup Menu

Instructions on using buttons to navigate setup options.

Setup Configuration Parameters

Details on setting ventilation, temperature, and humidity limits.

Model 8145 Verification

Rater/Inspector Verification Steps

Process for verifying settings against measured values.

Model 8145 Sequence of Operation

"CODE" Setting Operation Logic

Explains operation based on temperature limits and cycle periods.

"COMFORT" Setting Operation Logic

Explains operation considering temperature and humidity limits.

Filter Cleaning and Maintenance

Filter Cleaning Procedure

Step-by-step guide to clean the ventilator's filter.

Internal Schematics

Model 8145 Internal Schematic Diagram

Electrical schematic for the Model 8145 ventilator.

Model 8145NC Internal Schematic

Limited Warranty and Registration

Warranty Terms and Conditions

Details the duration and exclusions of the product warranty.

Warranty Registration Process

Information on how to register the product for warranty coverage.