Carrier 40RMS, 40RMQ installation instructions Installation, Start-Up Service Instructions

40RM

40RMQ

40RMS Packaged Air-Handling Units 50/60 Hz

Installation, Start-Up and

Service Instructions

CONTENTS

Page

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

PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 1

Moving and Storage . . . . . . . . . . . . . . . . . . . . . . . . 1

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Unit Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Unit Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Refrigerant and Chilled Water

Piping Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chilled Water Piping . . . . . . . . . . . . . . . . . . . . . . . 17

Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . 18

Power Supply and Wiring . . . . . . . . . . . . . . . . . . . 19

Connecting Ductwork . . . . . . . . . . . . . . . . . . . . . . 22

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 22

START-UP 23

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-39

Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Fan Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . 23

Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . 23

Centering Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . 24

Fan Shaft Position Adjustment . . . . . . . . . . . . . . 24

Individual Fan Wheel Adjustment . . . . . . . . . . . 24

Fan Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fan Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . 25

Pulley and Drive Adjustment . . . . . . . . . . . . . . . . 25

Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . 25

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Chilled Water Coil Freeze Protection . . . . . . . . 25

Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Cleaning Cooling Coil . . . . . . . . . . . . . . . . . . . . . . 25

Cleaning Insulation . . . . . . . . . . . . . . . . . . . . . . . . 25

Replacing Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

START-UP CHECKLIST . . . . . . . . . . . . . . . . CL-1,CL-2

SAFETY CONSIDERATIONS

Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components and equipment location (elevated structures, etc.).

Only trained, quali®ed installers and service mechanics should install, start up, and service this equipment.

Untrained personnel can perform basic maintenance func- tions such as cleaning coils, and cleaning and replacing

®lters. All other operations should be performed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

·Follow all safety codes.

·Wear safety glasses and work gloves.

·Use care in handling, rigging, and setting bulky equipment.

Be sure all power to equipment is shut off before per- forming maintenance or service. More than one discon- nect may be present.

PRE-INSTALLATION

Moving and Storage Ð To transfer unit from truck to storage site, use a fork truck. Do not stack units more than 2 high during storage. If unit is to be stored for more than 2 weeks before installation, choose a level, dry storage site free from vibration. Do not remove plastic wrap or skid from unit until ®nal installation.

Rigging Ð All 40RM Series units can be rigged by us- ing the shipping skid. Units are shipped fully assembled. Do not remove shipping skids or protective covering until unit is ready for ®nal placement; damage to bottom panels can result. Use slings and spreader bars as applicable to lift unit.

INSTALLATION

General Ð Allow 21¤2 ft at front and side of unit for service clearance and air¯ow. For units equipped with an econo- mizer, refer to the accessory installation instructions for ad- ditional clearance requirements. Be sure ¯oor, wall, or ceil- ing can support unit weight (Tables 1A-1F). See Fig. 1A-1C for dimensions.

Uncrating Ð Move unit as near as possible to ®nal lo- cation before removing shipping skid.

Remove metal banding, top skid, and plastic wrap. Ex- amine unit for shipping damage. If shipping damage is evident, ®le claim with transportation agency. Remove base skid just prior to actual installation.

Check nameplate information against available power supply and model number description in Fig. 2.

Accessories Ð Refer to instructions shipped with each accessory for speci®c information.

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

Book	1	4	PC 111	Catalog No. 534-053	Printed in U.S.A.	Form 40RM-9SI	Pg 1	11-95	Replaces: 40RM-1SI
Tab	3c	2e