COMPRESSOR OF CENTRIFUGAL WATER CHILLER

Compressor of Centrifugal Water Chiller

The vapor-compression refrigeration cycle in water chillers varies by the type of compressor used in it. As per the size of chillers, the following types of compressors are typically used:

Safety of DuPont Suva Refrigerants

DuPont Suva® refrigerants are a line of hydrofluorocarbon (HFC) refrigerants used in air conditioning and refrigeration applications. They are designed as alternatives to ozone-depleting substances like HCFC-22. Some common Suva® refrigerants include Suva® 407C and Suva® 407A, which are used in commercial and residential air conditioning systems.

DuPont has also developed next-generation refrigerants under the Opteon® brand, such as Opteon® YF (HFO-1234yf), which has a significantly lower global warming potential (GWP) compared to traditional HFC refrigerants.

DuPont Answers Your Questions about the Safe Handling and Use of DuPont Suva Refrigerants

DuPont Suva refrigerants, which are composed of hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) compounds, were developed as safe, effective alternatives to existing chlorofluorocarbon (CFC) refrigerants.

What is the function of Catch-All-Filter-Drier in HVAC System?

The Catch-All-Filer-Drier is a consumable, brilliant gadget that can dispose of the considerable number of shortcomings of free-filled reenactment by embellishing a mix into a spongy center.


The center gives a great filtration framework, particularly for dampness, earth, acids, and waste without the likelihood of desiccant powdering, pressing, and getting away into the framework.

Reciprocating Liquid Chiller Controls Start-Up and Operation

Controls Start-Up, Operation, Service, and Troubleshooting of Reciprocating Liquid Chiller

Chiller installation, starting, servicing the equipment properly, and troubleshooting the problem may be hazardous if you do not know the right procedure. You need a manufacturer-provided instruction manual and user guidelines. This guide contains the Carrier reciprocating liquid chillers' controls, start-up, operation, service, and troubleshooting manuals for

30HK, HL040-060, 

30HWA,B,C,S018-040, 

30GTN015-035

You may download the full 92-page user guide in PDF form from the link below:

DOWNLOAD

Trouble Shooting a Faulty Refrigeration Circuit-Danfoss

Fig: Virtual Presentation of Finding Fault

How to Troubleshoot HVAC Faulty Refrigeration Circuit

Smart troubleshooting of HVAC problems and malfunctions is a technique where an HVAC technician thinks very sharply and shoots skilled way. Quick troubleshooting depends on fault-finding techniques rather than the difficulty of the fault. Sometimes very simple problem kills a long span of technician time, reversely tactful technician solves the critical malfunction very quickly. 

Fig: Sectional Diagram of Chiller Evaporator

What is Evaporator and How Does it Work in a Chiller

This weight drop of the fluid refrigerant the second development gadget to streak and the subsequent blend of fluid and vapour enter the low-weight council of the economizer. 

Routine Maintenance of HVAC Recirculated Water System

The Routine Maintenance of HVAC Re-circulated Water System

Routing maintenance of HVAC re-circulated water system is recommended to keep the system any kind of trouble-free. Routine maintenance or preventive maintenance determines the continuous services as well as ensures increasing the lifetime of machinery.

Strainer Maintenance:

The pan strainer should be removed and cleaned at least once a month or as often as necessary to keep it clean.

Wiring Diagrams for Reciprocating Liquid Chillers-Carrier

Details Wiring Diagram for Reciprocating Liquid Carrier Chiller

You will find the carrier reciprocating liquid chillers' complete wiring diagram for
30GTN, GTR040-420
30GUN, GUR040-420

Download the full PDF copy of the liquid chiller wiring diagram

DOWNLOAD

How Economizer Works in Centrifugal Chiller

Air-Side Economizer Flow Diagram

Economizer Working Principle in Centrifugal Chiller System

Economizers may use in air side or water side of the HVAC system. Let's see the use of economizer on a different side to save energy.

Expansion Device Orifice Plates of Centrifugal Water Chiller

Expansion Device Orifice Plates of Centrifugal Water Chiller

Fig: Orifice Plates Diagram

An expansion device is used to maintain the pressure difference between the high-pressure (condenser) and low-pressure (evaporator) sides of the refrigeration system, as established by the compressor. 

This pressure difference allows the evaporator temperature to be low enough for the refrigerant to absorb heat from the water being cooled, and the condenser temperature to be high enough for the refrigerant to reject heat to water at normally available temperatures. 

How Chiller Motor works for Long Time keeping Cool

Fig: Hermetic Motor  Cooling System

How Chiller Motor works for a Long Timekeeping Cool

How chiller motor keeps cooling is an important issue because chiller normally works continuously and need to keep cooling; so how chiller motor keeps cooling. 

A motor is used to rotate the impeller(s). A direct-drive motor is connected directly to the impeller shaft and the impeller rotates at the same speed as the motor. 

Easy Finding Fault Location for HVAC Trouble Shooting: Danfoss Guide

HVAC fault finding and troubleshooting within a minimal time denote an HVAC technician's efficiency. 

Especially find fault location troubleshooting during system breakdown is very challenging for an HVAC technician.

Hope this troubleshooting fault location guide will be helpful for any beginner as well as the experienced technician.

Air-Cooled and Fluid-Cooled Chillers Control and Troubleshooting

Air-Cooled and Fluid-Cooled Carrier Chiller Control Guide

This article helps you control start-up, operation, and services and troubleshoot the carrier air-cooled and fluid-cooled chillers with comfort link controls for

30GXN, R080-528; 

30HXA,HXC076-271

The full 122 pages pdf troubleshooting and operation guide are also available to download from the below link:

Most Useful HVAC Wiring Diagram that You Should Collect

The HVAC Wiring Diagram

If your profession is with HVAC equipment installation or operation, then you must keep near hand the HVAC wiring diagram manual, HVAC wiring diagrams troubleshooting manual, HVAC wiring diagram symbols, HVAC wiring diagram colors, HVAC wiring schematic diagrams, air conditioner thermostat wiring diagram, HVAC condenser wiring diagram, how to wire air conditioner to furnace and heat pump wiring diagram, etc.

Freeze Protection Pro Cooling System

Fig: Freeze protection pro cooling system diagram

The freeze protection pro cooling system

Solidifying or Freezing is one of the most imperative vocabularies in the cooling framework; because of solidifying in the cooling framework liquid stream is blocked, metallic channels broke, supplies cracked and so on, and trouble happened. To keep nonstop sheltered and sound fluid stream solidify assurance then again against solidifying framework is required both in re-flowed water framework and shut-circuit liquid cooler framework.

Freeze protection for re-circulating water system:

What is Taco Hydronic System Solutions?

Taco Hydronic System Solutions (knowledge of HVAC systems and their design required

What is Taco Hydronic System Solutions?

Taco Hydronic System Solutions is a dynamic, drag-and-drop technology software that assists HVAC designers in the design of hydronic equipment systems, setting of system parameters, and scheduling of HVAC equipment.

How Does Condenser Fan Speed Controller Work?

What Is Condenser Fan?

A condenser fan in an HVAC system is part of a heat pump or central air conditioning system that circulates air across the system's condenser coil to increase the transfer of heat. Generally, you will find some condenser fan motors in sealed bearings, whereas others are lubrication systems. In either case, though, fan functionality is vital.

Condenser fan speed controllers are used to control the speed of condenser fans in order to maintain optimal cooling efficiency. By controlling the fan speed, the controller can reduce energy consumption and noise levels while ensuring that the condenser is operating at its most efficient. This article will discuss how a condenser fan speed controller works and how it can be used to improve energy efficiency in a wide range of applications.

A Comprehensive Guide to VFD66 Series Condenser Fan Speed Controls and How They Can Help Your Business

Fault Location Overview On HVAC Compressor-Danfoss

Free download the guide for Danfoss Fault Location Overview On HVAC Compressor

This is an intelligent technique of an HVAC professional just beginning systematic fault locating, cutting off the power supply  for at least 5 minutes which will ensure that the PTC starting device has reset and cooled off to ready for next new start. 

The first minutes of power cut-off  pull down the appliance with cold compressor and lead to an interlocking situation.

In this article will helpful you who are seeking for understanding the service network for household appliances and similar.

This focuses on mainly PL, TL, NL and FR compressors for 220-240V. For detailed information on compressors download the full pdf version file from the below link; from where you can learn details about compressors types- PL, TL, NL, FR and partly SC are equipped with a PTC starting device or a relay and start capacitor.

Sponsored:

This guide discussed the following fault location procedure for HVAC Compressor system step-by-step that will very helpful for a technician.

1. Fault location;
2. Electrical compressor quick check;
3. Check main and start winding;
4. Check protector;
5. Check relay; &
6. Check PTC.

Finally a table is denoted for most common fault reasons, detectable before dismounting compressor.

Free download the guide for Danfoss Fault Location Overview On HVAC Compressor.

DOWNLOAD .pdf

Commonly Used HVAC Abbreviations

Fig: Abu Dhabi Airport Inside

Heating, ventilation, and air conditioning are the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space.

An abbreviation, simply put, is a shortened form of a word. In writing, abbreviations are useful when you need to squeeze a lot of writing into a small space. You can also use them in place of long or cumbersome phrases to make your sentences easier to read.

HVAC ENGINEERING DICTIONARY

Sometimes it becomes difficult to describe the known terms clearly to others. This article is for the guy who works with HVAC, the terms related to the HVAC systems that every day you use, keep saved, and may need at necessary.

HVAC (heating, ventilation, and air conditioning) is a major sub-discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort.

heating, ventilation (or ventilating), and air conditioning: The right HVAC system can help regulate the environmental factors inside your home, like air quality, humidity, and temperature.