Carrier 62MC, 62ME, 62MD, 62MB specifications Installation, Start-Up Service Instructions

62MB,MC,MD,ME040-950 Energy Recovery Ventilators

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58 Step 1 — Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Step 2 — Install Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . 1

•STAND-ALONE APPLICATIONS

•COUPLED APPLICATIONS

Step 3 — Rigging and Handling . . . . . . . . . . . . . . . . . 45

• MOUNTING THE UNIT INDOORS

Step 4 — Installing ERV Transitions . . . . . . . . . . . . . . . 47

• ERV UNIT COUPLED WITH A 3 TO 12 1/2 TON HVAC UNIT

Step 5 — Make Electrical Connections . . . . . . . . . . . . 47

•POWER SUPPLY

•ELECTRICAL CONNECTIONS

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-75

Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Rain Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Energy Recovery Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 59

•DRIVE BELT

•AIR SEALS

Blower Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Airflow Settings and Adjustments. . . . . . . . . . . . . . . 59

•FACTORY SETTING

•CURVE SELECTION

•ADJUST THE ERV BLOWER SPEED

•MEASURE MOTOR VOLTAGE, AMPERAGE AND FAN RPM

•BELT MAINTENANCE

Variable Air Volume Option. . . . . . . . . . . . . . . . . . . . . . 74 Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

•OCCUPIED MODE

•UNOCCUPIED MODE

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75-78

Removing Wheel Segments for Cleaning (62M170-950 Units). . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Removing and Installing Non-Segmented

Wheel for Cleaning (62M040 Units). . . . . . . . . . . . 75

Removing and Installing Non-Segmented

Wheel for Cleaning (62M075,120 Units) . . . . . . . 76 Installing Wheel Segments (62M170-950 Units). . . 76 Wheel Drive Motor and Pulley Replacement . . . . . 77 Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78,79 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 62M energy recovery ventilator units.

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.

INTRODUCTION

The 62M energy recovery ventilator (ERV) units recover energy from building exhaust air and pre-condition ventilation air. All ERV units are available in either vertical discharge (through the bottom) or horizontal discharge configuration.

The 62MB and MC vertical discharge units are used when a stand-alone ERV unit is required.

The 62MD and ME horizontal discharge unit can be used as a stand-alone unit, or can also be coupled with a Carrier rooftop unit.

INSTALLATION

Step 1 — Inspection — Inspect the unit; file a claim with the shipping company if the unit is damaged. Check the packing list to ensure that the correct items have been received and notify your Carrier representative of any discrepancy.

Step 2 — Install Roof Curb

STAND-ALONE APPLICATIONS — The ERV unit can be installed without being coupled with a Carrier rooftop unit. The ERV units can be installed in one of three stand-alone applica- tions: down discharge, horizontal discharge, or a combination of both down discharge and horizontal discharge.

When installing a stand-alone ERV unit refer to Fig. 1-45 and, complete the following:

Locate the Roof Curb — Prior to locating the roof curb con- sider the structural support required for the rooftop system and, the duct drop location in relation to the joists. Allow sufficient space for service, clearance, and locations of vents or other sources of air.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book	1	4	Catalog No. 536-220	Printed in U.S.A.	Form 62M-1SI	Pg 1	1-06	Replaces: New
Tab	10a	12a