Bryant 704A, Руководство по установке

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1
Installation Instructions
704A
SINGLE--PACKAGED AIR CONDITIONER
WITH R--22 REFRIGERANT
2--5 NOMINAL TONS (SIZES 024--060) 1 & 3 PHASE
NOTE
: Read the entire instruction manual before starting the
installation.
NOTE
: Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
Page
SAFETY CONSIDERATIONS 1 . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECEIVING AND INSTALLATION 2--9 . . . . . . . . . . . . . . . . .
Check Equipment 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identify Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspect Shipment 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Unit Support 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Curb 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slab Mount 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground Mount 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Clearances 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field Fabricate Ductwork 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rig and Place Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Use of Rigging Bracket 6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect Condensate Drain 7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Duct Connections 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Units for Downflow (Vertical) Discharge 7 . . . . .
Install Electrical Connections 8 . . . . . . . . . . . . . . . . . . . . . . . .
High--Voltage Connections 9 . . . . . . . . . . . . . . . . . . . . . . . .
Special Procedures for 208v Operation 9 . . . . . . . . . . . . . . .
Control Voltage Connections 9 . . . . . . . . . . . . . . . . . . . . . . .
Standard Connection 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transformer Protection 9 . . . . . . . . . . . . . . . . . . . . . . . . . . .
PRE--START--UP 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP 11--16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Refrigerant Leaks 11 . . . . . . . . . . . . . . . . . . . . . . . .
Start--Up Adjustments 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Cooling Control Operation 11 . . . . . . . . . . . . . . .
Checking and Adjusting Refrigerant Charge 11 . . . . . . . . . .
Indoor Airflow and Airflow Adjustments 11 . . . . . . . . . . . .
Cooling Sequence of Operation 16 . . . . . . . . . . . . . . . . . . . .
MAINTENANCE 16--18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Blower and Motor 17 . . . . . . . . . . . . . . . . . . . . . . . . . .
Outdoor Coil, Indoor Coil, and Condensate Drain Pan 17 . . . .
Outdoor Fan 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Controls and Wiring 18 . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Circuit 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Airflow 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Metering Devices–AccuRater
®
Piston 18 . . . . . . . . . . . . . . . .
TROUBLESHOOTING 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP CHECKLIST 18 . . . . . . . . . . . . . . . . . . . . . . . . . . .
C99062
Fig. 1 -- Unit 704A
SAFETY CONSIDERATIONS
Installation and servicing of this equipment can be hazardous due to
mechanical and electrical components. Only trained and qualified
personnel should install, repair, or service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning and replacing air filters. All other operations must be
performed by trained service personnel. When working on this
equipment, observe precautions in the literature, on tags, and on
labels attached to or shipped with the unit and other safety
precautions that may apply.
Follow all safety codes. Installation must be in compliance with
local and national building codes. Wear safety glasses, protective
clothing, and work gloves. Have fire extinguisher available. Read
these instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit.
Recognize safety information. This is the safety--alert symbol .
When you see this symbol on the unit and in instructions or manuals,
be alert to the potential for personal injury. Understand these signal
words: DANGER, WARNING, and CAUTION. These words are
used with the safety--alert symbol. DANGER identifies the most se-
rious hazards which will result in severe personal injury or death.
WARNING signifies hazards which could result in personal injury
or death. CAUTION is used to identify unsafe practices which may
result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which
will result in en-
hanced installation, reliability, or operation.