Enviro HL SERIES User Manual

ENVIRO-TEC
ii
FORM ET115.24-NOM11 (118)
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations ....................... 1
TABLE OF CONTENTS
Section One - Receipt & Initial Installation
HL Series Features.......................... 2
Preface ................................... 3
Unpacking & Inspection ...................... 3
Handling & Installation ....................... 3
Drain Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cooling/Heating Medium Connections ........... 6
Auxiliary Drain Pans ......................... 7
Ductwork Connections . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Connections ....................... 7
Electrical Enclosure ......................... 7
Telescoping Bottom Panel .................... 8
Model HLP Horizontal Fan Coil Optional
Telescoping Bottom Panel Assembly,
Typical Installation Instructions ............. 9
Service & Clearance Requirements ............ 10
Height Restricted Application . . . . . . . . . . . . . . . . . 11
Width Restricted Application.................. 12
External Space Requirements ................ 13
Section Two - Start-Up
General.................................. 14
Cooling/Heating System..................... 14
Air System Balancing ....................... 14
Motor & Fan Data .......................... 15
Water System Balancing .................... 16
Controls Operation ......................... 16
Section Three - Normal Operation &
Periodic Maintenance
General.................................. 17
Motor/Blower Assembly ..................... 17
Fan Deck ................................ 17
Coil ..................................... 18
Start-Up Checklist
Inspection & Start-up Checklist ............... 27
Section Five - Fan Relay Board
Installation ............................... 28
Reference Wire Diagram .................... 30
Ratings .................................. 31
Tools Needed for Installation/Troubleshooting .... 32
Jumpers ................................. 33
Test Points ............................... 33
Screw Terminal Signals ..................... 34
Checking Wire Harnesses ................... 35
Section Six - Troubleshooting
Fan Relay Board........................... 36
PSC Motor ............................... 37
EC Motor ................................ 40
Cooling System ........................... 44
Electric Heat .............................. 45
Electric Resistance Heater Assembly........... 18
Electrical Wiring & Controls .................. 18
Valves & Piping............................ 18
Filters, Throwaway ......................... 19
Drain.................................... 20
Optional Item Installation .................... 21
Condensate Pump ...................... 21
Current Switch Device ................... 21
Di󰀨erentialAirPressureSwitch ............ 22
Discharge Air Sensor .................... 23
Condensate Float Switch Installation........ 25
Replacement Parts......................... 26
Section Four - Inspection &
Low Temperature Cutout Control ........... 23
Unit Weight Data . . . . . . . . . . . .. ...........24

Enviro HL SERIES Specifications

General

Brand	Enviro
Model	HL SERIES
Category	Fan
Language	English