CaptiveAire NLINE Installation Manual
Standard and Modular Centrifugal Untempered Supply Fans
Installation, Operation, and Maintenance Manual
Standard Untempered Supply Fan
Modular Untempered Supply Fan
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RECEIVING AND INSPECTION
WARNIN
G!!
INLINE Filtered Supply Fan
Upon receiving unit, check for any interior and exterior damage, and if found, report it
immediately to the carrier. Also check that all accessory items are accounted for and are
damage free. Turn the blower wheel by hand to verify free rotation and check the damper (if
supplied) for free operation.
Installation of this ventilator should only be performed by a qualified professional who has
read and understands these instructions and is familiar with proper safety precautions.
Improper installation poses serious risk of injury due to electric shock, contact with rotating
equipment, and other potential hazards. Read this manual thoroughly before installing or
servicing this equipment. ALWAYS disconnect power prior to working on fan.
. This document is the property of the owner of this equipment and is
required for future maintenance. Leave this document with the owner when installation or
service is complete.
A0011038
April 2011 Rev. 11
TABLE OF CONTENTS
WARRANTY .................................................................................................................................................. 3
INSTALLATION ............................................................................................................................................. 4
Mechanical ................................................................................................................................................ 4
Site Preparation .................................................................................................................................... 4
Intake Assembly ................................................................................................................................... 4
Curb and Ductwork ............................................................................................................................... 4
Recommended Supply Ductwork Sizes ............................................................................................... 4
Roof Mount Installation ......................................................................................................................... 5
Wall Mount Installation ......................................................................................................................... 5
Indoor (Inline) Installation ..................................................................................................................... 6
Installation with Exhaust Fan ................................................................................................................ 6
Electrical ................................................................................................................................................... 7
Copper Wire Ampacity ......................................................................................................................... 7
PSC (Permanent Split Capacitor) Motor Speed Control ...................................................................... 8
ECM (Electronically Controlled Motor) Speed Control ......................................................................... 8
Motorized Intake Damper ..................................................................................................................... 8
Fan to Building Wiring Connection ....................................................................................................... 9
OPERATION ............................................................................................................................................... 10
Start Up ................................................................................................................................................... 10
Special Tools Required ...................................................................................................................... 10
Start Up Procedure ............................................................................................................................. 10
Pulley Adjustment ............................................................................................................................... 11
Pulley Alignment ................................................................................................................................. 11
Proper Belt Tension ............................................................................................................................ 11
Pulley Setscrew Torque ..................................................................................................................... 11
Pulley Combination Chart ................................................................................................................... 12
Troubleshooting ...................................................................................................................................... 13
Troubleshooting Chart ........................................................................................................................ 13
MAINTENANCE .......................................................................................................................................... 14
General Maintenance ............................................................................................................................. 14
2 weeks after startup .............................................................................................................................. 14
Every 3 months ....................................................................................................................................... 14
Filter Quantity Chart ........................................................................................................................... 15
Yearly ...................................................................................................................................................... 15
Start-Up and Maintenance Documentation ............................................................................................ 16
Job Information ................................................................................................................................... 16
Fan Unit Information ........................................................................................................................... 16
Maintenance Record .......................................................................................................................... 16
Factory Service Department ............................................................................................................... 16
2
WARRANTY
This equipment is warranted to be free from defects in materials and workmanship, under normal use and
service, for a period of 12 months from date of shipment. This warranty shall not apply if:
1. The equipment is not installed by a qualified installer per the MANUFACTURER’S installation
instructions shipped with the product,
2. The equipment is not installed in accordance with federal, state and local codes and regulations,
3. The equipment is misused or neglected,
4. The equipment is not operated within its published capacity,
5. The invoice is not paid within the terms of the sales agreement.
The MANUFACTURER shall not be liable for incidental and consequential losses and damages
potentially attributable to malfunctioning equipment. Should any part of the equipment prove to be
defective in material or workmanship within the 12-month warranty period, upon examination by the
MANUFACTURER, such part will be repaired or replaced by MANUFACTURER at no charge. The
BUYER shall pay all labor costs incurred in connection with such repair or replacement. Equipment shall
not be returned without MANUFACTURER’S prior authorization and all returned equipment shall be
shipped by the BUYER, freight prepaid to a destination determined by the MANUFACTURER.
3
INSTALLATION
It is imperative that this unit is installed and operated with the designed airflow and electrical supply in
accordance with this manual. If there are any questions about any items, please call the service
department at 1-866-784-6900 for warranty and technical support issues.
Mechanical
WARNING: DO NOT RAISE VENTILATOR BY THE INTAKE HOOD, BLOWER OR
MOTOR SHAFT, OR BEARINGS – USE LIFTING LUGS PROVIDED OR A SLING
Site Preparation
1. Provide clearance around installation site to safely rig and lift equipment into its final position.
Supports must adequately support equipment. Refer to manufacturer’s estimated weights.
2. Consider general service and installation space when locating unit.
3. Locate unit close to the space it will serve to reduce long, twisted duct runs.
4. Do not allow air intake to face prevailing winds. Support unit above ground or at roof level high
enough to prevent precipitation from being drawn into its inlet. The inlet must also be located at
least 10 feet away from any exhaust vents. The fan inlet shall be located in accordance with the
applicable building code provisions for ventilation air.
Intake Assembly
Filters and intake hoods for standard supply fans are shipped inside the supply fan housing for protection
during shipping. Modular intakes are shipped on a separate skid. Upon unit arrival, follow the following
procedure to assemble the intake to the fan:
1. Remove the fan top (standard supply fans
only).
2. Remove the intake hood and filters from the
fan housing.
3. Re-install the fan top (standard supply fans
only).
4. Apply silicone or weather-proof gasket on the
back side of the flanges of the intake hood.
5. Screw the flanges of the intake hood to the
unit at the hatched areas shown with the
supplied sheet metal screws. Place caulk on
the outside of the screws to prevent water
leaks. Slide the filters down the filter track as
shown.
Curb and Ductwork
This fan was specified for a specific CFM and static
pressure. The ductwork attached to this unit will
significantly affect the airflow performance.
Flexible ductwork and square elbows should not be
used. Also, transitions and turns in ductwork near
the fan outlet will cause system effect and will
drastically increase the static pressure and reduce
airflow. The chart to the right shows the minimum
fan outlet duct sizes and straight lengths
recommended for optimal fan performance.
FAN TOP
INTAKE HOOD
FILTER(S)
SUPPLY FAN
Recommended Supply Ductwork Sizes
Blower Size Duct Size Straight Duct Length
10 14 x 14 48 in.
12 16 x 16 54 in.
15 20 x 20 72 in.
18 24 x 24 86 in.
20 26 x 26 108 in.
25 32 x 32 168 in.
4
Follow SMACNA guides and recommendations for the remaining duct run. Fans designed for
rooftop installation should be installed on a prefabricated or factory built roof curb. Follow curb
manufacturer’s instructions for proper curb installation. The unit should be installed on a curb and/or rail
elevated not less than 14” above any surface. Be sure duct connection and fan outlet are properly
aligned and sealed. Secure fan to curb through vertical portion of the ventilator base assembly flange
using a minimum of eight (8) lug screws, anchor bolts, or other suitable fasteners (not furnished). Shims
may be required depending upon curb installation and roofing material. Check all fasteners for tightness.
The diagrams below show different mechanical installation configurations.
Roof Mount Installation
Wall Mount Installation
5
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