Enviro VDD - Default Chapter; Table of Contents

ENVIRO-TEC
ii
FORM ET115.24-NOM12 (718)
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations ....................... 1
TABLE OF CONTENTS
Section One - Receipt & Initial Installation
Direct Drive Blower-Coil Series Features......... 2
Preface ................................... 2
Unpacking & Inspection ...................... 3
Code Compliance........................... 3
Handling and Installation ..................... 3
Unit Rigging and Placement................... 4
Drain Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cooling/Heating Medium Connections ........... 6
Ductwork Connections . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Connections ....................... 6
Electrical Enclosure ......................... 7
Condensate Drain and Traps . . . . . . . . . . . . . . . . . . 8
Service and Clearance Requirements ........... 9
Clearance ................................ 11
Section Two - Start-Up
General.................................. 12
Cooling/Heating System..................... 12
Air System Balancing ....................... 12
Motor & Fan Data .......................... 13
Water System Balancing .................... 13
Controls Operation ......................... 13
Section Three - Normal Operation &
Periodic Maintenance
General.................................. 14
Motor/Blower Assembly ..................... 14
Coil ..................................... 15
Electric Resistance Heater Assembly........... 15
Electrical Wiring & Controls .................. 16
Filters, Throwaway ......................... 16
Drain.................................... 17
Optional Item Installation .................... 17
Condensate Float Switch Installation........ 17
Replacement Parts......................... 18
Section Four - Discrete Components
Fan Motor Control.......................... 19
Installation ............................... 19
Reference Wire Diagram .................... 20
Inputs and Outputs ......................... 21
Tools Needed for Installation/Troubleshooting .... 21
Jumpers ................................. 21
Checking Wire Harnesses ................... 22
Section Five - Troubleshooting
Discrete Components....................... 23
EC Motor ................................ 24
Cooling System ........................... 24
Electric Heat .............................. 25
Section Six - Inspection &
Start-Up Checklist
Inspection & Start-up Checklist ............... 29