Energy Tech Laboratories DSH installation instructions Low line voltage to compressor

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FORM 145.32-IOM1 (908)

 

 

 

 

 

 

 

 

 

 

 

Status LED

Status LED Description

 

Status LED Troubleshooting Information

 

 

 

1.

Low line voltage to compressor

 

Yellow “ALERT”

Locked Rotor

 

 

 

2.

Excessive liquid refrigerant in compressor

 

Flash Code 4

LOCKOUT

 

 

 

 

 

 

 

 

 

 

 

3.

Compressor bearings are seized

 

 

 

 

 

Yellow “ALERT”

Open Circuit

1. Condensing unit power disconnect is open

 

Flash Code 5

 

 

 

 

 

 

2.

Compressor circuit breaker or fuses are open

 

 

 

 

 

 

 

 

3.

Compressor contactor has failed open

 

 

 

 

 

 

 

 

4.

High pressure switch is open and requires manual reset

 

 

 

 

 

 

 

 

5.

Broken supply wires or connector is not making contact

 

 

 

 

 

 

 

 

6.

Unusually long compressor protector reset time due to

 

 

 

extreme ambient temperature

 

 

 

7.

Compressor windings are damaged

 

 

 

 

 

Yellow “ALERT”

Missing Phase

1. Compressor fuse is open on one phase

 

Flash Code 6

LOCKOUT

 

 

 

 

 

 

 

 

 

 

2.

Broken wire or connector on one phase

 

 

 

 

 

 

 

 

3.

Compressor motor winding is damaged

 

 

 

 

 

 

 

4. Utility supply has dropped one phase

 

 

 

 

 

Yellow “ALERT”

Reverse Phase

1. Compressor running backward due to

 

Flash Code 7

LOCKOUT

 

supply phase reversal

 

Yellow “ALERT”

Welded Contactor

1. Compressor contactor has failed closed

 

Flash Code 8

Compressor always runs

 

 

 

 

 

2.

Thermostat demand signal not connected to module

 

 

 

 

 

Yellow “ALERT”

Low Voltage

1. Control circuit transformer is overloaded

 

Flash Code 9

Control circuit < 18VAC

 

 

 

 

 

2.

Low line voltage to compressor

 

 

 

 

 

 

Flash code number corresponds to a number of LED flashes, followed by a pause and then repeated.

TRIP and ALERT LED’s flashing at the same time means control circuit voltage is too low for opera- tion.

Resetting Alert Codes

Alert codes can be reset manually and automatically. The manual method to reset an Alert code is to cycle the power to Comfort Alert off and on. For automatic reset, Comfort Alert continues to monitor the compressor and system after an Alert is detected. If conditions return to normal, the Alert code is turned off automatically. ALERT codes that result in a compressor lock out can only be reset manually. ALERT codes that result in a lockout can only be reset manually.

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JOHNSON CONTROLS

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Contents Model DSH Ceiling Mounted Ducted R-410A General Safety Guidelines Read Before ProceedingTable of Contents General Information Typical Installation Drawing Rigging PRE-INSTALLATION Inspection of EquipmentInstallation Unit Mounting Interconnecting Refrigerant Tubing Split Installation Separation of UnitsDimensional Data Dimensional Data Ductwork Louver Sizing GuidelinesSplit System Electrical WiringPackaged Unit FAN Performance Data Standard Motors ModelBlower Speed Adjustment Motor and Pulley DataRefrigerant Charges Pressure Switch SettingsSTART-UP and Operation Typical Schematic Maintenance / Service FiltersEvaporator and Condenser Coils BlowersLED Description Comfort Alert DiagnosticsInterpreting the Diagnostic Leds Status LED Troubleshooting Information Low line voltage to compressor Installation Verification Limited Warranty Compressor Five Year Limited WarrantyLabor and Cost not Covered Exclusions410A Quick Reference Guide Form 145.32-IOM1

DSH specifications

Energy Tech Laboratories DSH is a pioneering organization at the forefront of energy technology innovation. With a commitment to sustainability and efficiency, DSH focuses on developing cutting-edge solutions that address modern energy challenges. The laboratory excels in research and development, primarily emphasizing renewable energy, energy storage systems, and smart grid technologies.

One of the main features of Energy Tech Laboratories DSH is its state-of-the-art research facilities that house advanced equipment and tools for experimentation and analysis. The laboratories are equipped with simulation tools that facilitate the modeling of complex energy systems, enabling researchers to assess the performance of new technologies under various conditions. This capability is vital for optimizing energy solutions before they are deployed in real-world applications.

DSH has developed several key technologies that exemplify its innovative spirit. Solar photovoltaic (PV) integration is one of the flagship projects, focusing on enhancing the efficiency of solar panels through novel materials and designs. The laboratory continuously investigates new photovoltaic materials that can significantly increase sunlight conversion rates, reducing the overall cost of solar energy.

In addition to solar technologies, DSH is a pioneer in the field of energy storage. The laboratory works on advanced battery technologies, including lithium-sulfur and solid-state batteries, which promise higher energy densities and longer life cycles compared to conventional lithium-ion batteries. These enhancements are vital for the effective storage of renewable energy, allowing for smoother integration into the power grid.

Moreover, Energy Tech Laboratories DSH is heavily invested in smart grid technologies, which enhance the efficiency of electricity distribution through real-time data analysis and improved grid management. By deploying advanced metering infrastructure and predictive analytics, DSH aims to create resilient energy systems that can respond dynamically to consumer demand and integrate various energy sources seamlessly.

The laboratory's dedication to collaboration with industry partners, government agencies, and academic institutions ensures that its research is translated into practical solutions. This synergy fosters innovation and accelerates the adoption of sustainable technologies.

In conclusion, Energy Tech Laboratories DSH stands as a pillar of innovation in the energy sector, exemplifying a strong commitment to developing technologies that support a sustainable future. Its focus on renewable energy, energy storage, and smart grid solutions positions it as a key player in the ongoing transition towards a cleaner and more efficient energy landscape.