Daikin Pathfinder AWV Series User Manual

Installation, Operation,
and Maintenance Manual
Pathnder
®
Air-cooled Screw Chillers
Model AWV
100 to 565 Tons (350 to 1985 kW)
HFC-134a Refrigerant
60/50 Hz
IOM 1242-2
Group: Chiller
Part Number: IOM1242-2
Date: August 2018

Daikin Pathfinder AWV Series Specifications

General

Brand	Daikin
Model	Pathfinder AWV Series
Category	Chiller
Language	English

Summary

INTRODUCTION

WARNING

Electric shock hazard during service of control panel. Proper grounding is essential.

CAUTION

Static sensitive components require a static strap. Handle electronics carefully.

Nameplates

DANGER

Hazards associated with improper rigging and lifting of the unit.

Receiving and Handling

Clearance Requirements

Chilled Water Piping

Evaporator Freeze Protection

Electrical Connections

Remote Evaporator Refrigerant Piping

Controller Features

WARNING

Electric shock hazard warning for controller service. Use qualified personnel.

MicroTech® III Inputs/Outputs

Compressor VFDs

Unit Level Set Points

Circuit Level Set Points

Unit Mode Selection

Unit Control States

Unit Status

Low Ambient Lockout

Evaporator Pump Control

Freeze Protection

Unit Capacity Control

Unit Capacity Limits

RapidRestore®

Circuit Availability

Circuit States

Compressor Control

Condenser Fan Control

Fan Control - All Fans with VFD

Evaporator EXV Control

Pressure Control State

EXV controls evaporator pressure to a target.

MOP Control State

Economizer EXV Control

Circuit Capacity Overrides

Unit Alarms

Unit GFP Fault

Description of Unit GFP Fault alarm.

Circuit 1 GFP Fault

Description of Circuit 1 GFP Fault alarm.

Evaporator Flow Loss

Evaporator Water Freeze Protect

Evaporator EWT Sensor Fault

DC Fan Controller Comm Failure

Economizer EXV Module Comm Failure

Low Evaporator Pressure

High Condenser Pressure

Mechanical Low Pressure Switch

High Discharge Temperature

High Oil Pressure Difference

Low Discharge Superheat

High Motor Current

CC Module Comm Failure

Evaporator Pressure Sensor Fault

Discharge Temperature Sensor Fault

Economizer Pressure Sensor Fault

DC Fan Motor Fault

Low Evaporator Pressure - Unload

Low Pressure Difference Or Ratio Shutdown

High Motor Current - Unload

High VFD Temperature Hold

Compressor Start Failure

Unit Controller Operation

Pre-startup

Startup

Temporary Shutdown

Startup After Extended (Seasonal) Shutdown

Pump Operation

Daikin Applied Americas Inc. LIMITED PRODUCT WARRANTY (North America)