Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 534-094 Printed in U.S.A. Form 40UV,UH-6SI Pg 1 7-05 Replaces: 40UV,UH-3SI
Book 3
Tab 2 a
Installation, Start-Up and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS ............................1
INTRODUCTION ......................................1,2
PREINSTALLATION .....................................1
Unpack and Inspect Units ..............................1
Protect Units From Damage ............................1
Prepare Jobsite for Unit Installation ....................1
Identify and Prepare Units.............................2
PHYSICAL DATA ........................................2
INSTALLATION ......................................2-24
Placing Vertical Units in Position .......................2
Placing Horizontal Units in Position ....................2
Make Piping Connections...............................8
Make Electrical Connections............................8
Actuators (Field-Supplied) ..............................8
Make Duct Connections .............................. 23
Make Final Preparations .............................. 24
PRODUCT INTEGRATED CONTROL ................24-46
Physical Characteristics .............................. 24
Unit Ventilator Comfort Control Module
Installation and Field Wiring ........................ 27
Sensors .............................................. 29
Carrier Comfort Network® Interface .................. 38
Relays ................................................ 39
Actuators ............................................. 39
Direct Expansion (DX) Cooling........................ 41
DX System Design.................................... 41
Electric Heat .......................................... 42
Remote Start ......................................... 42
Fire/Smoke Status Input .............................. 42
Valves ................................................ 43
SET-UP, CONFIGURATION, AND
OPERATION ......................................46-49
START-UP............................................. 50
SERVICE............................................50-66
Preventing Excessive Condensation on Unit.......... 50
Check Drain .......................................... 50
Fan Motor Bearings................................... 50
Fan Shaft Ball Bearing ................................ 50
Clean Fan Wheel...................................... 50
Clean or Replace Air Filters........................... 50
ECM Motor Removal and Reinstallation............... 50
Blower Assembly Section Removal
and Reinstallation .................................. 52
Coil Assembly Removal and Reinstallation ........... 53
Ball Bearing Replacement ............................ 57
Blower Wheel Removal and Reinstallation ............ 62
Sleeve Bearing Replacement ......................... 63
Damper Section Removal and Reinstallation.......... 65
TESTING............................................67-71
Water Valve Tests ..................................... 67
Face and Bypass Damper Tests ...................... 67
Dampers.............................................. 68
Fan Tests ............................................. 68
Filter Maintenance .................................... 68
Remote Start Input.................................... 68
Sensors .............................................. 68
Fire Shutdown Option ................................ 68
Electric Heat and Direct Expansion Cooling .......... 68
Mixed-Air Damper Sensors Final Calibration.......... 69
Testing Completion ................................... 69
Unit Diagnostics and Troubleshooting ................ 69
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.
When installing this unit, observe precautions in the litera-
ture, 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 accessory.
• Use quenching cloth for all brazing operations.
• Have fire extinguisher available for all brazing
operations.
INTRODUCTION
This document contains general installation instructions for
the 40UV,UH unit ventilators and information and trouble-
shooting of the Product Integrated Control (PIC) option.
See submittal drawings for unit configurations, dimensions,
clearances, and pipe connections. Refer to unit wiring label for
all electrical connections; follow NEC (National Electrical
Code) and local codes.
PREINSTALLATION
Unpack and Inspect Units —
Remove shipping wraps
from all units. Check the shipment against shipping order. If
shipment is damaged or incomplete, file claim with transporta-
tion company and advise Carrier immediately.
Protect Units From Damage — To maintain war-
ranty, protect units against adverse weather, theft, vandalism,
and debris on jobsite. Do not allow foreign material to fall into
drain pan. Prevent dust and debris from being deposited on
motor and fan wheels.
If the equipment is stored for any length of time before in-
stallation, it should remain in its shipping container in a clean,
dry, and climate controlled area.
Prepare Jobsite for Unit Installation — To save
time and to reduce the possibility of costly errors, set up a com-
plete sample installation in a typical room at jobsite. Check all
critical dimensions such as pipe, wire, and duct connection
requirements. Refer to job drawings and product dimension
drawings as required. Instruct all trades in their part of the
installation.
Before performing service or maintenance operations, turn
off main power switch to the unit. Electrical shock could
cause personal injury.
40UV,UH050-200
Unit Ventilators
with Product Integrated Control (PIC)
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General
