Daikin DPS Service Manual

Installation and Maintenance Manual OM 1141-3
Group: Applied Air Systems
Part Number: OM 1141
Date: October 2014
MicroTech
®
III Unit Controller for
Rebel
®
Commercial Packaged Rooftop Systems
Model DPS

Daikin DPS Specifications

General

Compatibility	Daikin HVAC Systems
Display	LCD Touchscreen
Connectivity	Ethernet
Power Supply	24V
Operating Temperature	0°C to 40°C
Humidity Range	20 to 80% RH (non-condensing)

Summary

Introduction

Using the Keypad/Display

Details operation and navigation of the unit's keypad and display.

Passwords

Manual Control

Allows manual control of unit components for testing and diagnostics.

Commission Unit

Unit Setup

Configures basic unit settings like sensors, units, and names.

SAF Set-up

RF/EF Set-Up

Heating/Cooling Changeover Set-Up

Cooling Set-Up

Inverter Compressor Set-Up

Configures parameters related to the inverter compressor operation.

Economizer Set-up

Min OA Set-Up Menu

Fan Control

Configures settings for supply and exhaust fan operation modes.

Operator's Guide

Heat Pump Control

Supplemental Heating/Compressor Heating Transitions

Heat Pump Defrost Operation

Defrost Control

Defrost Operation– Heat Pump Units Only

Details defrost operation requirements and procedures for heat pump units.

Defrost Operation State

Troubleshooting

Inverter Board Fault Codes

Lists and describes fault codes related to inverter boards.

Troubleshooting Module-to-Module Communication

Aids in diagnosing communication problems between system components.

Supply Fan Failure Codes

Lists and describes failure codes specific to the supply fan.

Check 1

Check 2

Check 3 – Power Resistor Check

ERROR CODE: E5 – Inverter Compressor Motor Lock

Details malfunction detection and causes for E5 error code.

ERROR CODE: E7 – Malfunction of Outdoor Unit Fan Motor

Details malfunction detection and causes for E7 error code.

ERROR CODE: H7 – Abnormal Outdoor Fan Motor Signal

Details malfunction detection and causes for H7 error code.

ERROR CODE: L1 – Defective Inverter PC Board

Details malfunction detection and causes for L1 error code.

ERROR CODE: L4 – Malfunction of Inverter Radiating Fin Temperature Rise

Details malfunction detection and causes for L4 error code.

ERROR CODE: L5 – Momentary Overcurrent of Inverter Compressor

Details malfunction detection and causes for L5 error code.

ERROR CODE: L8 – Momentary Overcurrent of Inverter Compressor

Details malfunction detection and causes for L8 error code.

ERROR CODE: L9 – Inverter Compressor Starting Failure

Details malfunction detection and causes for L9 error code.

ERROR CODE: P1 – Inverter Over-Ripple Protection

Details malfunction detection and causes for P1 error code.

ERROR CODE: P4 – Malfunction of Inverter Radiating Fin Temperature Rise Sensor

Details malfunction detection and causes for P4 error code.

ERROR CODE: PJ – Faulty Field Setting after Replacing Main PC Board or Faulty Combination of PC Board

Details malfunction detection and causes for PJ error code.

ERROR CODE: U2 – Power Supply Insufficient or Instantaneous Failure

Details malfunction detection and causes for U2 error code.