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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. 536-220 Printed in U.S.A. Form 62M-1SI Pg 1 1-06 Replaces: New
Book 1 4
Tab 10a 12a
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
•DRIVEBELT
•AIRSEALS
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.
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.
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.
62MB,MC,MD,ME040-950
Energy Recovery
Ventilators