Loren Cook ACE-D User Manual

This publication contains the installation, operation and
maintenance instructions for standard units of the AC-
Centrifugal Roof and Wall Exhausters.
• ACE-D / ACE-B
• ACW-D / ACW-B / ACW-HP / ACW-XP
• ACRU-D / ACRU-B / ACRU-HP / ACRU-XP
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook AC catalog provides additional information
describing the equipment, fan performance, available
accessories, and specification data.
For additional safety information, refer to AMCA
publication 410-96, Safety Practices for Users and Installers
of Industrial and Commercial Fans.
All of the publications listed above can be obtained from
Loren Cook Company by phoning (417)869-6474,
extension 166; by FAX at (417)832-9431; or by e-mail at
info@lorencook.com.
For information and instructions on special equipment,
contact Loren Cook Company at 417.869-6474.
Receiving and Inspection
Immediately upon receipt of an AC fan, carefully inspect
the fan and accessories for damage and shortage.
• Turn the wheel by hand to ensure it turns freely and
does not bind.
• Check dampers (if included) for free operation of all
moving parts.
• Record on the Delivery Receipt any visible sign of
damage.
Rotating Parts & Electrical Shock Hazard:
Disconnect electric power before working on unit.
Follow proper lockout / tagout procedures to ensure
the unit cannot be energized while being installed or
serviced.
A disconnect switch should be placed near the fan in
order that the power can be swiftly cut off, in case of
an emergency and in order that maintenance
personnel are provided complete control of the power
source.
Grounding is required. All field-installed wiring must
be completed by qualified personnel. All field-
installed wiring must comply with National Electric
Code (NFPA 70) and all applicable local codes.
Failure to follow these instructions could result in
death or serious injury.
Centrifugal Roof and Wall Exhausters
INSTALLATION, OPERATION AND MAINTENANCE
Handling
Lift the fan by the shipping
carton or lifting lugs provided
under top cap. NOTICE! Never
lift by the shaft, motor or
housing.
Storage
If the fan is stored for any
length of time prior to installation,
store it in its original shipping
crate and protect it from dust,
debris and the weather.
Installation
If the fan was delivered with the motor unmounted, see
the maintenance section for belt and pulley installation.
If the fan was purchased as a wall mount unit and a
grease terminator or grease trough was not purchased, a 1-
1/16 inch diameter drain hole should be drilled at the bottom
side of the fan for drainage.
Code requirements and environmental effects
The attachment of roof mounted fans to the roof curb
as well as the attachment of roof curbs to the building
structure must exceed the structural requirements
based on the environmental loading derived from the
applicable building code for the site. The local code
official may require variations from the recognized
code based on local data. The licensed engineer of
record will be responsible for prescribing the correct
attachment based on construction materials, code
requirements and environmental effects specific to
the installation.
Failure to follow these instructions could result in
death or serious injury.
AC
Lifting Lugs
®

Loren Cook ACE-D Specifications

General

Brand	Loren Cook
Model	ACE-D
Category	Fan
Language	English

Summary

Installation, Operation, and Maintenance

Handling Instructions

Proper methods for lifting the fan to prevent damage.

Storage Guidelines

Recommendations for storing the fan to protect it from environmental factors.

Installation Procedures

Steps for installing the fan, including motor mounting and drain hole drilling.

Electrical and Rotating Part Hazards

Critical safety warnings for electrical shock and rotating parts during installation.

Receiving and Inspection Process

Procedure for inspecting the fan upon receipt for damage and functional checks.

Fan Installation Specifics

Wall Exhauster Installation

Instructions for mounting wall exhausters using templates and fasteners.

Damper Installation

Steps for installing dampers, ensuring free movement and correct airflow.

Wiring Installation and Diagrams

Guidelines for electrical wiring, including local codes and motor-specific diagrams.

Operational Checks and Maintenance

Final Installation Steps

Final checks for fasteners, voltage, amperage, accessories, and correct rotation.

Start-up and Initial Inspection

Procedure for initial fan start-up, inspecting for vibration, noise, and belt alignment.

Maintenance Schedule

Establishing a regular inspection schedule for fan components.

Fan Bearings and Motor Speed

Bearing Relubrication Intervals

Table for greasing intervals based on bearing conditions and operating environment.

Motor Bearing Lubrication

Information on motor bearing lubrication, including prelubricated types and service life.

Changing Fan Shaft Speed

Instructions for adjusting fan speed using variable pitch pulleys.

Pulley and Belt Maintenance

Pulley Alignment Procedure

Steps to ensure proper alignment between motor and fan pulleys for efficient operation.

Bearing Replacement Guide

Detailed instructions for removing and installing new fan bearings.

Wheel Replacement Process

Methodology for safely removing and replacing the fan wheel using specialized tools.

Wheel-to-Inlet Clearance

Clearance Adjustment

Critical adjustment of fan wheel and inlet clearance for optimal performance.

Troubleshooting Fan Issues

Low Capacity or Pressure

Diagnosing and resolving issues related to reduced fan output or static pressure.

Vibration and Noise Problems

Identifying causes and solutions for excessive fan vibration and operational noise.

Overheated Motor Diagnosis

Troubleshooting common causes of motor overheating, such as wiring or clearance.

Overheated Bearings Diagnosis

Identifying and resolving issues leading to overheated fan bearings.

ACE-D Parts List

ACE-D Model Parts Breakdown

Diagrams and lists of parts for ACE-D models in sizes 70-100 and 120-180.

ACE-B Parts List

ACE-B Model Parts Breakdown

Diagrams and lists of parts for ACE-B models in sizes 60-100, 120-245, 270-300, 330-540.

ACW-D Parts List

ACW-D Model Parts Breakdown

Diagrams and lists of parts for ACW-D models in sizes 70-100 and 120-195.

ACW-B Parts List

ACW-B Model Parts Breakdown

Diagrams and lists of parts for ACW-B models in sizes 100, 120-165, and 180-245.

ACRU-D Parts List

ACRU-D Model Parts Breakdown

Diagrams and lists of parts for ACRU-D models in sizes 70-100 and 120-195.

ACRU-B Parts List

ACRU-B Model Parts Breakdown

Diagrams and lists of parts for ACRU-B models in sizes 100, 120-245, and 270-490.

Limited Warranty Information

Warranty Coverage and Claims

Details of manufacturer's warranty, exclusions, and procedure for making a claim.