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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53620007-01 Printed in U.S.A. Form 62E-C1SI Pg 1 8-10 Replaces: New
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Step 1 — Inspect the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 2 — Install Combination Roof Curb
(62EB-EU Units)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 3 — Install Drop in Damper Box
(62EB-EU Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 — Install Horizontal Base and Transition
(62EB-EU and 62E2-E7 Units)
. . . . . . . . . . . . . . . . . . . . 7
Step 5 — Install Standard Roof Curb . . . . . . . . . . . . . . 14
• VERTICAL STAND-ALONE APPLICATIONS
• HORIZONTAL STAND-ALONE APPLICATIONS
Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . 16
Step 7 — Make Electrical Connections . . . . . . . . . . 17
• POWER SUPPLY
• ELECTRICAL CONNECTIONS
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-32
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rain Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Energy Recovery Wheel. . . . . . . . . . . . . . . . . . . . . . . . . 22
• DRIVE BELT
•AIR SEALS
Airflow Settings and Adjustments. . . . . . . . . . . . . . . 22
• UNITS WITH EZERV CONROL OPTION
Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ComfortLink™ Interface Device . . . . . . . . . . . . . . . . . 27
Optional BACnet or LON Communications
Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-36
Removing and Installing Non-Segmented
Wheel for Cleaning (62EB,E7 Units). . . . . . . . . . . 32
Removing and Installing Non-Segmented Wheel
for Cleaning (62ECC and 62E2C Units). . . . . . . . 33
Removing Wheel Segments for Cleaning (62ECD,
62ED-EU, 62E2D, and 62E3-E6 Units) . . . . . . . . . 33
Installing Wheel Segments. . . . . . . . . . . . . . . . . . . . . . . 33
Wheel Drive Motor and Pulley Replacement
(62EC-EU and 62E2-E6 Units) . . . . . . . . . . . . . . . . . 34
Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
• ALTERNATE BELT REPLACEMENT METHODS
Removing the Service Door . . . . . . . . . . . . . . . . . . . . . 35
Replacing a Blower (All ERV Cabinets Except
62EB and 62E7 Units) . . . . . . . . . . . . . . . . . . . . . . . . . 35
• EXHAUST SIDE
• SUPPLY SIDE
Replacing a Blower (62EB and 62E7
Size Cabinets). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
• EXHAUST OR SUPPLY SIDE
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Air Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Page
Wheel Drive Components . . . . . . . . . . . . . . . . . . . . . . . 37
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Replacing the Throwaway Filters . . . . . . . . . . . . . . . . 37
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . .CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance
functions of cleaning coils and filters and replacing filters. All
other operations should be performed by trained service
personnel. When working on air-conditioning equipment,
observe precautions in the literature, tags and labels attached to
the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. These instructions describe how to install, start up, and
service 62E energy recovery ventilator (ERV) units.
GENERAL
The 62E ERV units recover energy from building exhaust
air and pre-condition ventilation air. See Tables 1A-2B for unit
data. All 62EB-62EU units are configured for vertical dis-
charge (through the bottom). Vertical units may be installed on:
• a stand-alone roof curb
• a combination curb for direct coupled connection to a
rooftop unit
If horizontal supply and return is desired using a vertical
unit, the vertical unit may be installed on a horizontal supply/
return base.
NOTE: The horizontal supply/return base accessory includes a
roof curb. The horizontal supply/return base should NOT be
used with a stand-alone roof curb.
All 62E2-62E7 units are configured for horizontal discharge
(through the side). Horizontal units may be installed on a
stand-alone roof curb.
DIRECT COUPLED APPLICATIONS (Vertical) — The
ERV unit can be installed directly coupled to a RTU (rooftop
unit). For vertical (through the roof) applications, the connec-
tion between the 62EB-62EU ERV unit and the RTU may be
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all discon-
nect locations to alert others not to restore power until work
is completed.
62E
Energy Recovery Ventilators
50 Hz