Introduction - Daikin AGZ 025D Operating & Maintenance Manual

Introduction

General Description
NOTE: Vintage changes; this manual covers
Revision 0A to the original AGZD version
"00". The units are very close in appearance
but can be differentiated by their nameplate.
Version OO name plate is AGZ..........E10
Revision OA nameplate is AGZ.........E11
Daikin Applied air-cooled global water chillers
are complete, self-contained automatic
refrigerating units. Every unit is completely
assembled, factory wired, charged, and tested
(except remote evaporator option). Each unit
consists of twin air-cooled condensers with
integral subcooler sections, two tandem or
triple scroll compressors, brazed-plate or
replaceable tube, dual circuit shell-and-tube
evaporator, and complete refrigerant piping.
Liquid line components include manual liquid
line shutoff valves, sight-glass/moisture
Scroll Compressor
Hazard Identification Information
Dangers indicate a hazardous situation which will result in death or serious injury if not avoided.
Warnings indicate potentially hazardous situations, which can result in property damage, severe
Cautions indicate potentially hazardous situations, which can result in personal injury or equipment
OMM 1166-1
Nomenclature
A G Z - XXX D H
Air-Cooled
Global
!
WARNING
!
personal injury, or death if not avoided.
CAUTION
!
damage if not avoided.
AGZ 025D through 190D
indicators, solenoid valves, and thermal
expansion valves.
Other features include compressor crankcase
heaters, an evaporator heater for chilled water
freeze protection, , automatic compressor lead-
lag to alternate the compressor starting
sequence, and sequenced starting of
compressors.
The electrical control center includes all
equipment protection and operating controls
necessary for dependable automatic operation.
This manual covers units with Software
Version 251699201 which must be used with
firmware version 9.XX.
Installation, information is in IM 1165 (or
current, latest dash number) manual.
DANGER
Application
H= Packaged Chiller
B= Remote Evaporator
Design Vintage
Model Size
(Nominal Tons)
3