Daikin AKZ438 - User Manual

44 pages

Save Page as PDF

To Next Page

To Next Page

Loading...

Built-in breaker

model

Built-in tank

model

Different-voltage

model

CE model

Built-in heater

model

Installation

Models

Oil Cooling Unit and Accessories

4

Precautions for Installation 5

Reference for Pipe Selection 6

Electric Wiring 7

CONTENTS

1

Circulating type

Standard

model

Menu

Series

Built-in

breaker

model (–B)

CE model

(–C)

Built-in

heater

model (–H)

Built-in

tank model

(–T1, –T)

Different-

voltage

model (–E)

AKZ148

AKZ328

AKZ438

AKZ568

AKZ908

Instruction Manual

AKZ8 Series

If the air filter is clogged, the cooling performance deteriorates,

causing excess power consumption.

Clean the air filter periodically to reduce power consumption.

Thank you for purchasing DAIKIN Oil Cooling Unit (“OILCON”).

This instruction manual includes instructions for using the Oil

Cooling Unit.

To ensure proper use of this product, be sure to read through this

instruction manual before using it.

After reading this manual, keep it handy for your future reference.

Monitor Items 23

Timer Operation 24

Additional Setting Functions 25

Setting Additional Function 27

For Temperature Control Improvement 30

Alarm/Warning Output Logic 33

Alarm Settings for Optional Protection

Devices (Installed by User) 33

Handling

Before Operation

12Model Identification and Specifications

14

Part Names and Functions 15

Names and Functions of the Control Panel Parts

16

Checking Initial Operating Conditions 18

Operation Setting 19

Holding Constant Oil Temperature 20

Tuning Oil Temperature to Room Temperature

(or Machine Temperature)

21

Cooling Oil at Constant Capacity (%) 22

Optional Parts

Machine temperature tuning control 34

Returned oil temperature control 35

Communication with main machine 36

Maintenance

37

38

Maintenance/Inspection

• Daily maintenance/inspection

• Periodic maintenance/inspection

• To leave the unit unused for a long period

Troubleshooting

• When the unit operation seems abnormal

although no alarm is activated

• When an alarm is activated

Safety Precautions

Installation

Procedure

Before

Operation

Useful

Functions

Maintenance

Troubleshooting

Optional

Functions

Operating

Procedure

DAIKIN Oil Cooling Unit

(“OILCON”)

Proper use results in power saving

PIM00116C

PIM00116C_EN.fm -1 ページ２００８年９月２９日　月曜日　午前１１時５１分

Table of Contents

Questions and Answers

S
smithamyAug 6, 2025
What to do if my Daikin Accessories unit won't cool oil, even though the pump and compressor are running?
- A
  Ashley McbrideAug 6, 2025
  If your Daikin Accessories unit isn't cooling oil despite the pump and compressor running, several factors could be the cause. First, check for any obstructions near the air intake/exhaust port and remove them. Next, inspect the air filter for clogs and clean it if necessary. Also, the unit might be under capacity suppressing control due to high room temperature; compare the capacity in the operating temperature range with the catalog to see if you need a model with more appropriate capacity. Ensure that the temperature setting isn't too high by adjusting it to a more appropriate level. Finally, if the exhaust air temperature is nearly the same as the room temperature when the compressor is running, the refrigerant gas might be low, and you should refill it.
M
Michelle LewisAug 10, 2025
What to do if my Daikin AKZ438 Accessories compressor does not run, although the pump is running?
- M
  Melissa PierceAug 10, 2025
  If the compressor in your Daikin Accessories unit isn't running while the pump is, it could be due to several reasons. The compressor might be stopped under temperature control. Check if the compressor restart prevention timer has been activated and wait for the preset time to elapse. Also, the low oil temperature or low ambient temperature protection device might be activated; ensure the oil temperature is at least 5°C and the room temperature is at least 0°C. Another possibility is that the capacity setting is at 0% (Mode 9); if so, change the operation mode to an appropriate setting.
B
Beth WallaceAug 15, 2025
What to do if oil does not flow in my Daikin Accessories, although the pump is running?
- D
  donnamitchellAug 15, 2025
  If oil isn't flowing in your Daikin Accessories unit even when the pump is running, and the pump sound level is high, there are a few things to check. First, inspect the pump suction pipe connection for looseness; check the pipe packing and re-tighten it securely. Then, examine the suction strainer for clogs and clean it; if the oil in the tank is dirty, replace it. Also, check the oil level in the tank and refill if necessary. If there's a large pressure loss in the oil discharge pipe, causing the pump relief valve to activate, increase the oil pipe diameter and shorten the pipe length.
H
Holly CookAug 18, 2025
How to fix Daikin AKZ438 when operation setting cannot be performed?
- J
  James SimsAug 19, 2025
  If you cannot perform operation settings on your Daikin Accessories unit, there are a couple of things to check. If “---” appears on the data display, the temperature sensor corresponding to the selected operation mode might not be connected; ensure the corresponding temperature sensor is connected. If “---” momentarily appears when you press the [ENT] key, the erroneous operation prevention switch might be set to ON; turn OFF the erroneous operation prevention switch (SW1) on the control board.
L
Lindsay LoweAug 23, 2025
Why Daikin AKZ438 alarm output operation is different from conventional signal output?
- W
  william79Aug 23, 2025
  The alarm output operation in your Daikin Accessories unit might differ from conventional signal outputs because the alarm output signal connection has been partially changed. The [60] to [63] outputs are compatible with conventional models (AKS5 and AKZ6 series). However, with the AKZ8 series, signal operations and connections of the [64] and [65] outputs have been changed.
S
Stacy GreeneAug 27, 2025
What to do if my Daikin AKZ438 pump does not run?
- G
  George GrantAug 28, 2025
  If the pump in your Daikin Accessories unit isn't running, check the connection of the remote control input. Also, the unit might be set to the operation lock mode; cancel the LOCK mode on the control panel.
J
Jessica CoxSep 1, 2025
What to do if my Daikin AKZ438 Accessories unit does not run at all?
- M
  Mary BradySep 1, 2025
  If your Daikin Accessories unit isn't running at all and the POWER lamp on the control panel is unlit, check if the main power supply is OFF or if the power cable (L1, L2) is disconnected. Ensure the power cable is connected to the power supply terminal.

Summary

Safety Precautions

Hazard Classifications

Differentiates hazards: Danger, Warning, Caution.

Installation Safety Guidelines

Mandatory installation safety measures and precautions.

Operational Safety Precautions

Unit Handling and Usage Restrictions

Precautions for handling, tilting, atmosphere, and maintenance.

General Safety Warnings

Environmental and Operational Hazards

Warnings about special atmospheres, leaks, and improper use.

Installation Procedure

Installation Precautions

Site Selection and Oil Piping Management

Guidelines for choosing installation location and managing oil piping.

Electric Wiring Procedure

Circuit Breaker Mounting and Wiring

Before Operation Checks

Operating Environment and Installation Checks

Check site conditions and installation setup.

Unit Components and Functions

Control Panel Overview

Operation Modes

Initial Operating Conditions Check

Checking and Cancelling Operation Lock

Procedure to check and cancel the operation lock mode.

Holding Constant Oil Temperature

Tuning Oil Temperature

Cooling Oil at Constant Capacity

Additional Setting Functions

Parameter Setting Procedure

Temperature Range Warning Function

Function Outline and Settings

Details on warning types, output, and compressor stop.

Auto-Tuning for Temperature Control

Auto-Tuning Function and Operation

How auto-tuning works and its steps.

Alarm and Warning Output Logic

Settings for Optional Protection Devices

Connecting and setting up external protection devices.

Maintenance and Inspection

Daily Maintenance Checks

Daily checks for oil, power, and operational sounds.

Troubleshooting Guide

Abnormal Operation Without Alarms

Troubleshooting when the unit operates abnormally without alarms.

Alarm List Reference

Detailed Alarm Codes and Causes

Alarm List Reference (continued)

Comprehensive Alarm Code Descriptions

Daikin AKZ438 Specifications

General

Brand	Daikin
Model	AKZ438
Category	Accessories
Language	English

Related product manuals

Preview: Daikin AKZ8 Series

Daikin AKZ8 Series