Carrier 40RMQ - Manual

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, qualified 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
filters. 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 — 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 final installation.
Rigging — 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 final placement; damage to bottom panels can
result. Use slings and spreader bars as applicable to lift unit.
INSTALLATION
General — Allow 2 1 ⁄
2
ft at front and side of unit for
service clearance and airflow. For units equipped with an econo-
mizer, refer to the accessory installation instructions for ad-
ditional clearance requirements. Be sure floor, wall, or ceil-
ing
can support unit weight (Tables 1A-1F). See
Fig. 1A-1C for dimensions.
Uncrating — Move unit as near as possible to final 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, file 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 — Refer to instructions shipped with each
accessory for specific information.
40RM
40RMQ
40RMS
Packaged Air-Handling Units
50/60 Hz
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 3c 2e
PC 111 Catalog No. 534-053 Printed in U.S.A. Form 40RM-9SI Pg 1 11-95 Replaces: 40RM-1SI