Daikin DTH XXX XXX Series User Manual

This manual is to be used by qualied, professionally trained HVAC techni-
cians only. Daikin does not assume any responsibility for property damage
or personal injury due to improper service procedures or services per-
formed by an unqualied person.
RSD6412017r34
November 2019
DTG Gas Electirc
DTC Cooling/DTH Heat Pump
Commercial Package Units
with R-410A Refrigerant
3 - 5 Tons & Accessories
Service Instructions
Copyright ©2015-2019
O
NLY PERSONNEL
THAT
HAVE BEEN
TRAINED
TO INSTALL
, ADJUST,
SERVICE OR
REPAIR (HEREINAFTER
, “SERVICE”)
THE EQUIPMENT SPECIFIED
IN
THIS
MANUAL
SHOULD SERVICE
THE EQUIPMENT
. THE MANUFACTURER WILL
NOT
BE
RESPONSIBLE
FOR
ANY INJURY
OR
PROPERTY
DAMAGE ARISING
FROM
IMPROPER SERVICE OR SERVICE
PROCEDURES. IF YOU SERVICE THIS
UNIT, YOU
ASSUME RESPONSIBILITY
FOR ANY INJURY
OR PROPERTY DAMAGE
WHICH MAY
RESULT. I
N ADDITION
, IN JURISDICTIONS
THAT REQUIRE ONE
OR
MORE
LICENSES TO
SERVICE THE EQUIPMENT
SPECIFIED
IN THIS MANUAL, ONLY
LICENSED
PERSONNEL SHOULD SERVICE THE EQUIPMENT
. IMPROPER
INSTALLATION, ADJUSTMENT,
SERVICING
OR REPAIR
OF THE
EQUIPMENT
SPECIFIED IN THIS
MANUAL, OR ATTEMPTING
TO INSTALL, ADJUST, SERVICE
OR
REPAIR THE
EQUIPMENT SPECIFIED IN
THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN
PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL
INJURY OR
DEATH.
WARNING
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
0140M00517-A

Daikin DTH XXX XXX Series Specifications

General

Brand	Daikin
Model	DTH XXX XXX Series
Category	Heat Pump
Language	English

Summary

Service Instructions

Important Safety Information

Key safety warnings and precautions for unit operation.

Safe Refrigerant Handling

Guidelines for safe handling of refrigerants.

Product Identification

Model Configuration and Options

Product Design

Unit Location Requirements

Guidelines for proper unit placement and site preparation.

Electrical Wiring Safety

System Operation

Pre-Operation Safety and Instructions

Critical safety warnings and operating procedures.

Gas Appliance Operation

Instructions for operating gas-fired heating systems.

Heat Pump System Operation

Scheduled Maintenance

Routine Maintenance Recommendations

Overview of preventive maintenance schedule and tasks.

Filter Maintenance

Furnace Inspection and Cleaning

Procedures for inspecting and cleaning furnace components.

Servicing

Troubleshooting Charts

Charts for diagnosing cooling and gas heating issues.

Voltage and Wiring Checks

Procedures for checking unit voltage supply and wiring integrity.

Thermostat and Control System Checks

Procedures for testing thermostats, relays, and control circuits.

Motor and Compressor Component Tests

Procedures for testing capacitors, motors, and compressors.

Refrigeration System Diagnostics

Procedures for checking reversing valves, defrost, refrigerant charge, and leaks.

Gas System Component Checks

Ignition System Troubleshooting