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Daikin DPS025 User Manual

Daikin DPS025
122 pages
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3–6 tons
7–15 tons
Shown with Energy Recovery
16–28 tons
Shown with Energy Recovery
Installation and Maintenance Manual IM 1125-7
Group: Applied Air Systems
Part Number: IM 1125
Date: November 2015
Rebel
Commercial Packaged
Rooftop Systems
Heating and Cooling
Models DPS003 – 028A
R-410A Refrigerant
MicroTech
®
III Unit Controller
Energy Recovery Wheel

Table of Contents

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Daikin DPS025 Specifications

General IconGeneral
CategoryAir Conditioner
TypeSplit System
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply220-240V, 50Hz
RefrigerantR32
Indoor Unit Weight8.5 kg

Summary

Introduction

Hazard Identification Information

Explains the meaning of DANGER, WARNING, and CAUTION symbols.

Mechanical Installation

Installer Responsibilities

Outlines the duties and qualifications of installers for this equipment.

Mechanical Installation

Rigging and Handling

Details safe procedures for rigging and handling the unit during installation.

Electrical Installation

Electrostatic Discharge (ESD)

Outlines precautions to prevent damage from electrostatic discharge during servicing.

Before Start-Up

Lists preliminary checks and steps before initiating unit start-up.

Refrigeration System

VFD Compressor Control

Details how the VFD compressor is controlled via signals and its start sequence.

High Discharge Line Temperature Unloading Control

Details unloading control based on high discharge line temperature.

Low/High Discharge Superheat Control

Discusses monitoring and controlling discharge superheat for VFD compressors.

Refrigeration System

VFD Compressor Operation – DPS 016–028

Explains the operation and modulation of VFD compressors in DPS 016-028 units.

VFD Compressor Protection Unloading Control

Details control functions that protect the VFD compressor from abnormal conditions.

Variable Frequency Drive for VFD Compressor

Provides warnings and operational information for the VFD compressor drive.

High Pressure Unloading Control

Explains the high pressure unloading control for the VFD compressor.

Optional Modulating Hot Gas Reheat

Modulating Hot Gas Reheat

Explains the reheat coil option and its function for temperature control.

Control & Arrangement

Details the control and arrangement for Modulating Hot Gas Reheat (MHGRH).

Optional Electric Heat

Electric Heater Design

Explains the design of the electric heat option, including safeties and controls.

Optional Gas Heat

Operating Procedures

Provides step-by-step instructions for operating the unit.

Gas Furnace Design

Explains the design features of the gas heat furnace option.

Turning OFF Gas to the Appliance

Details the procedure for safely turning off gas to the appliance.

Optional Gas Heat

DPS 016–028 Gas Pipe Manifold Pressure Adjustment

Provides instructions for adjusting gas pipe manifold pressure for staged and modulating furnaces.

DPS 003–015 Sequence of Operation

Details the sequence of operation for staged and modulating gas furnaces.

DPS 003–015 Staged Gas Furnace Ignition Control

Describes the ignition control module and its LED diagnostics for staged furnaces.

DPS 003–015 Modulating Gas Furnace Ignition Control

Describes the ignition control module for modulating gas furnaces.

DPS 003–015 Gas Furnace Ignition and Control Troubleshooting

Covers troubleshooting for ignition and control of gas furnaces.

Functional Alerts - DPS 003–015

Lists functional alerts, their descriptions, possible causes, and solutions.

Functional Alerts Continued

Continues the list of functional alerts, causes, and solutions.

DPS 016–028 Gas Furnace Ignition Troubleshooting

Provides troubleshooting for ignition control on DPS 016-028 gas furnaces.

Start-Up Procedures

Outlines the responsibilities and preliminary steps for unit start-up.

Staged Ignition Control Troubleshooting Guide

Offers troubleshooting guidance for staged ignition control based on LED indicators.

Before Start-Up Checks

Lists checks and actions to perform before initiating unit start-up.

Optional Gas Heat

DPS 016–028 Sequence of Operation

Details the sequence of operation for staged and modulating gas furnaces.

Lockout Errors - DPS 003–015

Lists lockout errors, their descriptions, possible causes, and solutions.

Lockout Errors Continued

Continues the list of lockout errors, causes, and solutions.

Optional Hot Water Heat

Hot Water Heater Design

Discusses design considerations for hot water heater options, including freeze protection.

Optional Energy Recovery Wheel

System Description

Describes how the optional enthalpy wheel provides energy recovery.

Frost Protection Options

Describes factory-installed frost protection options for the enthalpy wheel.

Optional Outdoor Air Monitor

Thermal Dispersion Airflow Measurement Technology

Explains the thermal dispersion technology used for airflow measurement.

Optional Outdoor Air Monitor

General Transmitter Troubleshooting

Provides troubleshooting steps for common issues with the transmitter and LCD display.

Transmitter Communication Troubleshooting

Offers troubleshooting for communication issues between the transmitter and host control system.

ECM Motor

VFD Compressor Emergency Stop Control

Describes the emergency stop control function for the VFD compressor.

Wiring Diagrams

Typical CAV_VAV 208-230 VAC Wiring (Part 1)

Provides the first part of the typical wiring diagram for CAV/VAV units.

Typical CAV_VAV 208-230 VAC Wiring (Part 2)

Provides the second part of the typical wiring diagram for CAV/VAV units.

Typical CAV_VAV 208-230 VAC Wiring (Part 3)

Provides the third part of the typical wiring diagram for CAV/VAV units.

Typical CAV_VAV 208-230 VAC Wiring (Part 4)

Provides the fourth part of the typical wiring diagram for CAV/VAV units.

Typical CAV_VAV 460 VAC Wiring (Part 1)

Provides the first part of the wiring diagram for 460 VAC CAV/VAV units.

Typical CAV_VAV 460 VAC Wiring (Part 2)

Provides the second part of the wiring diagram for 460 VAC CAV/VAV units.

Typical CAV_VAV 460 VAC Wiring (Part 3)

Provides the third part of the wiring diagram for 460 VAC CAV/VAV units.

Typical CAV_VAV 460 VAC Wiring (Part 4)

Provides the fourth part of the wiring diagram for 460 VAC CAV/VAV units.

Typical 575 Volt Wiring (Part 1)

Provides the first part of the wiring diagram for 575 VAC units.

Typical 575 Volt Wiring (Part 2)

Provides the second part of the wiring diagram for 575 VAC units.

Typical 575 Volt Wiring (Part 3)

Provides the third part of the wiring diagram for 575 VAC units.

Typical 575 Volt Wiring (Part 4)

Provides the fourth part of the wiring diagram for 575 VAC units.

Sequence of Operation

Mechanical Cooling Operation

Describes the cooling mode operation based on control temperature and setpoint.

Heating Modes

Explains heating operation for electric, gas, and hot water heat.

Preparing the Unit for Start Up

Pre-Start of Unit Procedures

Lists safety precautions and initial checks before starting the unit.

Preparing the Unit for Start Up

Fan Start-Up Checks

Outlines checks and procedures for starting the unit's fans.

Check, Test and Start Procedures

Economizer Start-Up

Guides on checking and starting the economizer operation.

Set Up for Optimum Control

Guides on calibrating sensors and setting up for optimum control.

Compressor Start-Up Procedure

Details the preparation and procedure for starting the compressors.

Check, Test and Start Procedures

Energy Recovery Wheel Pre-startup and Adjustment

Covers pre-startup checks and diameter seal adjustment for the ER wheel.

Final Control Settings

Controller Settings for Normal Operation

Lists parameters to set for normal unit operation after start-up.

Maintenance

Performing Service Maintenance

Emphasizes that maintenance must be done by qualified personnel.

Refrigerant Charge Procedures

Discusses factors affecting refrigerant charge and proper charging procedures.

Servicing Control Panel Components

Stresses disconnecting power before servicing control panel components.

Re-charging the Unit

Details the evacuation and re-charging process for the refrigerant system.

Planned Maintenance Overview

Outlines routine preventive maintenance tasks for the unit.

Maintenance

Cleaning Option E Coated Coils

Recommends cleaning procedures for Option E Coated Coils for warranty.

Phase Voltage Monitor (PVM) Function

Describes the phase voltage monitor designed to protect three-phase loads.

Routine Quarterly Cleaning of Coated Coils

Emphasizes quarterly cleaning of coated coils for efficiency and warranty.

Service and Warranty Procedures

Replacement Parts Ordering

Provides information on ordering replacement parts and required details.

Warranty Registration Form

Rebel Equipment Warranty Registration Form

Instructions and form for registering equipment warranty with Daikin Applied.

Initial Check List

Checklist for initial inspection items before unit start-up.

Performance Data Recording

Section to record performance data like pressures, temperatures, and superheat.

Furnace Check, Test, & Start

Checklist for furnace gas pressure, limit controls, and air switch function.

Start-Up Compressor Operation Checks

Checklist for verifying compressor operation and parameters during start-up.

Appendix – Keypad/Display Menu Structure

Main Menu Structure Overview

Illustrates the main menu and navigation flow of the MicroTech III controller.

Commission Unit Functions

Guides through commissioning the unit via keypad menus.

Inverter Compressor Setup

Details compressor status and setup for inverter compressors.

Appendix – Keypad/Display Menu Structure

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