Carrier 62E specifications Contents, Safety Considerations, General, Install Drop in Damper Box

62E Energy Recovery Ventilators 50 Hz

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-UPCHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . .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.

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.

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

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