ICP DLF4HH30K1A User Manual

421 01 9204 00 1/03/13
SERVICE MANUAL
R−410A Ductless Split System
Air Conditioner and Heat Pump
MODELS: DLC4(A/H)−Outdoor, DLF4(A/H)−Indoor
SIZES: 9K, 12K, 18K, 24K, 30K, and 36K
INTRODUCTION
This Service Manual provides the necessary information to
service, repair, and maintain the DLF4(A,H), DLC4(A/H)
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1........................
SPECIFICATIONS 2..................................
MODEL / SERIAL NUMBER NOMENCLATURE 16.......
STANDARD FEATURES AND ACCESSORIES 17........
DIMENSIONS 18.....................................
CLEARANCES 22....................................
SYSTEM OPERATING ENVELOPE 23..................
ELECTRICAL DATA 25...............................
CONNECTION DIAGRAMS 26.........................
WIRING DIAGRAMS 27...............................
REFRIGERATION SYSTEM DIAGRAM 36...............
REFRIGERANT LINES 38.............................
SYSTEM EVACUATION AND CHARGING 39............
CONTROL SYSTEM 40...............................
MODES OF OPERATION 44...........................
TROUBLESHOOTING 47.............................
DIAGNOSTIC CHARTS 48............................
MALFUNCTION ANALYSIS 55.........................
APPENDIX 79.......................................
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air−conditioning
equipment can be hazardous due to system pressures,
electrical components, and equipment location (roofs,
elevated structures, etc.).
Only trained, qualified installers and service mechanics
should install, start−up, and service this equipment.
Untrained personnel can perform basic maintenance
functions such as cleaning coils. All other operations should
be performed by trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work
gloves. Keep quenching cloth and fire extinguisher nearby
when brazing. Use care in handling, rigging, and setting
bulky equipment.
Read these instructions thoroughly and follow all warnings
or cautions included in literature and attached to the unit.
Consult local building codes and National Electrical Code
(NEC) for special requirements. In Canada, refer to current
editions of the Canadian Electrical Code, CSA 22.1.
Recognize safety information. This is the safety−alert
symbol
!
!
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.Understand these signal words: DANGER,
WARNING, and CAUTION. These words are used with the
safety−alert symbol. DANGER identifies the most serious
hazards which will result in severe personal injury or death.
WARNING signifies hazards which could result in personal
injury or death. CAUTION is used to identify unsafe
practices which may result in minor personal injury or
product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation,
reliability, or operation.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant
pipe in the ground. If any section of pipe is buried, there
must be a 6 in. (152 mm) vertical rise to the valve
connections on the outdoor units. If more than the
recommended length is buried, refrigerant may migrate
to the cooler buried section during extended periods of
system shutdown. This causes refrigerant slugging and
could possibly damage the compressor at start−up.

ICP DLF4HH30K1A Specifications

General

Brand	ICP
Model	DLF4HH30K1A
Category	Air Conditioner
Language	English

Summary

Introduction to Service Manual

Safety Considerations Overview

Essential safety precautions for installing, starting, and servicing the equipment.

Model and Serial Number Nomenclature

Explanation of model series and serial number coding for identification.

Product Specifications

Indoor Unit Specifications

Detailed technical specifications for indoor unit components like fan motor and evaporator.

Outdoor Unit Specifications

Detailed technical specifications for outdoor unit components like compressor and heat exchanger.

Model and Serial Number Nomenclature

Model Series Explanation

Breakdown of the model number to understand unit features and type.

Serial Number Explanation

Guide to deciphering the serial number for tracking and identification.

Standard Features and Accessories

Feature Categories Overview

Categorization of unit features such as ease of operation, comfort, and safety.

Warranty Information

Details on standard and extended warranty coverage for the unit.

Unit Dimensions

Indoor Unit Dimensions

Physical dimensions (width, height, depth) of the indoor unit for various sizes.

Outdoor Unit Dimensions

Physical dimensions (width, height, depth) of the outdoor unit for various sizes.

Clearances for Installation

Unit Clearance Requirements

Minimum required clearances around indoor and outdoor units for proper operation.

System Operating Envelopes

Operating Range Tables

Tables detailing operating temperature ranges for different models and voltages.

Operating Envelope Graphs

Graphical representation of system performance limits based on ambient conditions.

Electrical Data and Wiring

Electrical Data Table

Comprehensive table of electrical ratings, currents, and component data.

Wiring Guidelines

Recommendations for field wiring, cable sizing, and connection precautions.

Connection Diagrams

115V Connection Diagrams

Diagrams illustrating power and control connections for 115V models.

208/230V Connection Diagrams

Diagrams illustrating power and control connections for 208/230V models.

Wiring Diagrams

Indoor Unit Wiring Diagrams

Schematic diagrams for the internal wiring of indoor units.

Outdoor Unit Wiring Diagrams

Schematic diagrams for the internal wiring of outdoor units.

Refrigerant System Diagrams

Cooling Only System Diagrams

Refrigerant flow diagrams for cooling-only models.

Cooling and Heating System Diagrams

Refrigerant flow diagrams for cooling and heating models.

Refrigerant Lines and Charge

Refrigerant Line Routing

Guidelines for routing refrigerant lines and drain connections.

Refrigerant Charge and Length Guidelines

Information on refrigerant charge amounts and maximum line lengths.

System Vacuum and Charge Procedures

Vacuum Pump Procedures

Steps for evacuating the system using a vacuum pump.

Deep Vacuum Method

Detailed method for achieving a deep vacuum of 500 microns.

Triple Evacuation Method

Alternate method for system evacuation if pump capabilities are limited.

Remote Control and Functions

Remote Control Display Details

Explanation of symbols and indicators on the remote control display.

Battery Installation

Instructions for installing or replacing batteries in the remote control.

Function and Controls

Control Operation Descriptions

Detailed explanation of each control and its operation.

Protection Mechanisms

Description of various protection functions like antifreeze and overload.

Mode-Specific Operations

Explanation of unit behavior in Cooling, Heating, Fan, and Auto modes.

Sensor Malfunction Detection

How the system detects and reports temperature sensor malfunctions.

Troubleshooting Guide

Inspection and Repair Precautions

General safety rules and precautions for performing maintenance and repairs.

Error Code Interpretation

Explanation of error codes displayed on the unit and their meanings.

Malfunction Analysis

Systematic analysis and diagnosis for common unit malfunctions.

Appendices

Temperature Sensor Resistance Tables

Tables correlating ambient and tube temperatures with sensor resistance.