Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53400048-01
Printed in U.S.A.
Form 40UV-UH-11SI
Pg 1
8-18
Replaces: 40UV-UH-10SI
Installation, Start-Up and Service Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 2
Unpack and Inspect Units . . . . . . . . . . . . . . . . . . . . 2
Protect Units From Damage . . . . . . . . . . . . . . . . . . 2
Prepare Jobsite for Unit Installation . . . . . . . . . . . 2
Identify and Prepare Units. . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 — Place Units in Position . . . . . . . . . . . . . . 2
Step 2 — Make Piping Connections . . . . . . . . . . . . 9
Step 3 — Make Electrical Connections . . . . . . . . 10
Step 4 — Mount Actuators (Field-Supplied) . . . . 10
Step 5 — Make Duct Connections . . . . . . . . . . . . 30
Step 6 — Make Final Preparations . . . . . . . . . . . . 31
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Periodic Maintenance Checklist . . . . . . . . . . . . . . 32
Preventing Excessive Condensation on Unit . . . 32
Check Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fan Motor Bearings . . . . . . . . . . . . . . . . . . . . . . . . 32
Fan Shaft Ball Bearing . . . . . . . . . . . . . . . . . . . . . . 32
Clean Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Clean or Replace Air Filters . . . . . . . . . . . . . . . . . 32
ECM Motor Removal and Re-installation . . . . . . . 32
Blower Assembly Section Removal and
Re-installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Coil Assembly Removal and Re-installation . . . . 38
Ball Bearing Replacement . . . . . . . . . . . . . . . . . . . 40
Sleeve Bearing Replacement . . . . . . . . . . . . . . . . 45
Blower Wheel Removal and Re-installation . . . . 47
Damper Section Removal and Re-installation. . . 48
UNIT START-UP CHECKLIST . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installation and servicing of this unit can be hazardous due to
system pressure, electrical components and equipment location
(such as a ceiling or elevated structure). Untrained personnel can
perform the basic maintenance functions of replacing filters.
Only trained and qualified service personnel should perform all
other operations. See Fig. 1 for Proposition 65 warning label.
When installing this unit, observe precautions in the literature,
tags and labels attached to the equipment, and any other safety
precautions that may apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care in handling and installing this unit and any
accessories.
• Use quenching cloth for all brazing operations.
• Have fire extinguisher available for all brazing operations.
Fig. 1 — Proposition 65 Warning Label
WARNING
Before performing service or maintenance operations, turn
off main power switch to the unit. Electrical shock could
cause personal injury.
CAUTION
Sharp edges, coil surfaces and rotating fans are a potential
injury hazard - avoid contact.
!
WARNING
This product can expose you to chemicals
including Lead, lead compounds, and
formaldehyde, which are known to the State of
California to cause cancer and birth defects
or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov
Ce produit peut vous exposer à des agents
chimiques, y compris le plomb et les composes
de plomb, et formaldéhyde, identifiés par l’État
de Californie comme pouvant causer le cancer
et des malformations congénitales ou autres
troubles de l’appareil reproducteur. Pour de
plus amples informations, prière de consulter
www.P65Warnings.ca.gov
!
AVERTISSEMENT
!
ADVERTENCIA
Este producto puede exponerlo a químicos que
incluyen plomo y compuestos de plomo, y
formaldehído, los cuales son conocidos en el
Estado de California como causantes de
cáncer y defectos de nacimiento, u otros daños
reproductivos. Para mayor información, visite
www.P65Warnings.ca.gov
40UV,UH050-200
Unit Ventilators
