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General| Brand | Daikin |
|---|---|
| Model | DPS004 |
| Category | Air Conditioner |
| Language | English |
Explains DANGER, WARNING, and CAUTION symbols used for safety in the manual.
Specifies required clearances around the unit for service access and proper operation.
Provides instructions for assembling and installing the roof curb for the unit.
Details safe procedures and precautions for rigging and handling the unit.
Describes optional damper assemblies, their operation, and linkage adjustment.
Provides instructions for installing ductwork, including flexible connections and sound transmission.
Details the procedure for installing duct static pressure sensor taps for VAV units.
Describes the installation of the discharge air temperature sensor.
Details pressure tap installation for lab pressurization applications.
Table providing recommended wire sizes based on ampacity.
Describes the refrigerant piping system variations and common characteristics.
Describes the fixed speed compressor (COMP3) used in medium cabinet units.
Explains the function and refrigerant flow for the receiver in heat pump units.
Describes the purpose and location of check valves on compressor discharge lines.
Describes the function of the four-way valve (reversing valve) in heat pump units.
Describes the function of the receiver solenoid valve (SVR).
Details the operation of the indoor expansion valve (EVI).
Explains the operation of the outdoor expansion valve (EVO).
Details the indoor refrigerant temperature sensor (IRT) in heat pump units.
Details the heating mode for heat pump units, including supplemental heat usage.
Explains the defrost operation cycle for heat pumps to remove frost.
Describes the variable speed compressor (COMP1) in 016-028 units.
Details the function and operation of high pressure switches on compressors.
Details the discharge pressure transducer (PTD) for 016-028 units.
Explains the discharge refrigerant temperature sensor (DRT) for all units.
Describes the suction refrigerant temperature sensor (SRT).
Outlines the start-up sequence for the VFD compressor.
Details the control logic for unloading the compressor due to high pressure.
Discusses monitoring and controlling superheat for VFD compressor protection.
Describes actions taken when suction superheat is too low.
Describes actions taken when suction superheat is too high.
Provides general information and warnings about variable speed scroll compressors.
Describes the optical oil sensor used to monitor oil level in the VFD compressor.
Explains the reheat coil option and its role in dehumidification and temperature control.
Describes the design of the electric heat option, including safeties and controls.
Details the design of the gas furnace option, including components and safety switches.
Recommended maintenance schedule and procedures for the gas furnace.
Troubleshooting guide for the VB-1200 combustion board.
Discusses the design of hot water heater coils and installation considerations.
Details factory-installed frost protection options for the enthalpy wheel.
Explains the standard defrost control method based on outdoor temperature.
Describes frost prevention by jogging the wheel at constant speed.
Explains frost prevention by slowing the wheel speed.
Details the VFD control for enthalpy wheel speed based on frost protection.
Explains the technology used for measuring airflow.
Details the duct high pressure limit control (DHL) and its function.
Explains how the unit enters heating mode based on control temperature and setpoint.
Explains unit cooling modes based on control temperature and setpoints.
Details cooling mode for CAV units using space temperature.
Details cooling mode for VAV units using return temperature.
Explains economizer operation based on outdoor air enthalpy and setpoints.
Lists critical safety precautions and checks before starting the unit.
Steps for starting up the economizer, including damper observation.
Procedures for preparing and starting the compressors.
Recommendations for checking subcooling levels after compressor start-up.
Details monitoring and adjusting superheat for critical compressor operation.
Guidelines for performing air balancing by a qualified technician.
Guide for setting parameters for normal unit operation after start-up.
General guidelines for performing service maintenance on the unit.
Recommends preventive maintenance schedules and checks.
Step-by-step guide for evacuating and recharging the unit's refrigerant system.
Specific keypad navigation instructions for charging and evacuation.
Explains how to service the compressor ground fault interrupter.
Details the phase voltage monitor and its LED indications for power conditions.
Emphasizes the importance of quarterly coil cleaning for warranty and performance.
Information on ordering replacement parts, including required details.
Details the first-year parts-only warranty for scroll compressors.
Checklist for compressor operation checks during startup.
Section for recording performance data like pressures, temperatures, and superheat.
Checklist for furnace checks, tests, and startup procedures.
Setup for expansion valves, including position and superheat control.
Setup parameters for the defrost cycle.
