Technical Support Asif

Technical Support Asif This Page will Help how to repair Home Appliances and Air Conditioner Product and Technical Support

16/07/2025

Dishwasher Hardness Setting DT8S

15/07/2025

Memories of Last Year July 2024 Trainings

15/07/2025

Split AC Repair & Dignostics

RATA Skillathon 2025 is a nationwide online skilling initiative launched by the Refrigeration and Airconditioning Trades Association (RATA) to empower technicians and project engineers across India. In celebration of World Youth Skills Day (15th July), this 15-day knowledge series brings together experts from leading HVAC companies to deliver practical, real-world training.

RATA स्किलाथॉन 2025 एक राष्ट्रव्यापी ऑनलाइन स्किलिंग पहल है, जिसे रेफ्रिजरेशन एंड एयरकंडिशनिंग ट्रेड्स एसोसिएशन (RATA) द्वारा लॉन्च किया गया है। इसका उद्देश्य भारत भर के तकनीशियनों और प्रोजेक्ट इंजीनियर्स को सशक्त बनाना है।
विश्व युवा कौशल दिवस (15 जुलाई) के उपलक्ष्य में आयोजित यह 15-दिन की नॉलेज सीरीज़, अग्रणी HVAC कंपनियों के विशेषज्ञों को एक मंच पर लाती है, जो व्यावहारिक और वास्तविक जीवन से जुड़े प्रशिक्षण प्रदान करते हैं।

Split AC Installation Dimensions
14/07/2025

Split AC Installation Dimensions

14/07/2025

RATA Skillathon 2025 is a nationwide online skilling initiative launched by the Refrigeration and Airconditioning Trades Association (RATA) to empower technicians and project engineers across India. In celebration of World Youth Skills Day (15th July), this 15-day knowledge series brings together experts from leading HVAC companies to deliver practical, real-world training.

RATA स्किलाथॉन 2025 एक राष्ट्रव्यापी ऑनलाइन स्किलिंग पहल है, जिसे रेफ्रिजरेशन एंड एयरकंडिशनिंग ट्रेड्स एसोसिएशन (RATA) द्वारा लॉन्च किया गया है। इसका उद्देश्य भारत भर के तकनीशियनों और प्रोजेक्ट इंजीनियर्स को सशक्त बनाना है।
विश्व युवा कौशल दिवस (15 जुलाई) के उपलक्ष्य में आयोजित यह 15-दिन की नॉलेज सीरीज़, अग्रणी HVAC कंपनियों के विशेषज्ञों को एक मंच पर लाती है, जो व्यावहारिक और वास्तविक जीवन से जुड़े प्रशिक्षण प्रदान करते हैं।

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After routine maintenance service, the following parameters should be checked in an air conditioner (AC) to ensure it's ...
13/07/2025

After routine maintenance service, the following parameters should be checked in an air conditioner (AC) to ensure it's functioning properly:
Electrical Parameters
Power consumption: Verify that the AC is consuming the expected amount of power.
Voltage and current: Check the voltage and current readings to ensure they're within the recommended range.
Electrical connections: Inspect electrical connections for signs of wear, damage, or corrosion.
Refrigeration Parameters
Refrigerant level: Check the refrigerant level to ensure it's within the recommended range.
Refrigerant leaks: Inspect the system for signs of refrigerant leaks.
Condenser and evaporator coils: Verify that the coils are clean and free of debris.
Airflow and Temperature Parameters
Airflow: Check the airflow from the vents to ensure it's adequate and not restricted.
Temperature: Verify that the AC is cooling to the desired temperature.
Temperature difference: Check the temperature difference between the supply and return air.
System Performance Parameters
Cooling capacity: Verify that the AC is providing the expected cooling capacity.
System pressure: Check the system pressure to ensure it's within the recommended range.
Drainage: Verify that the condensate drainage system is functioning properly.

ASHRAE recommends the following indoor design conditions for various spaces:Office Buildings and Commercial FacilitiesCo...
12/07/2025

ASHRAE recommends the following indoor design conditions for various spaces:
Office Buildings and Commercial Facilities
Cooling: 75°F (24°C) dry bulb, 50% relative humidity
Heating: 70°F (21°C) dry bulb
General Spaces
Mechanical/Electrical/Equipment Rooms: 85-90°F (29-32°C) dry bulb for cooling, 60°F (16°C) dry bulb for heating
Toilet Rooms, Locker Rooms, Shower Rooms: 78°F (25°C) dry bulb for cooling, 70°F (21°C) dry bulb for heating
Lobbies, Corridors, Elevator Lobbies, Atriums: 75°F (24°C) dry bulb for cooling, 70°F (21°C) dry bulb for heating
Educational Facilities
Classrooms, Lecture Halls: 75°F (24°C) dry bulb for cooling, 70°F (21°C) dry bulb for heating
Laboratories: 75°F (24°C) dry bulb for cooling, 72°F (22°C) dry bulb for heating
Hospitals and Healthcare Facilities
Operating Theaters: 75°F (24°C) dry bulb
Patient Rooms: 70-75°F (21-24°C) dry bulb
ASHRAE also recommends maintaining relative humidity between 40% to 65% for optimal comfort. Additionally, indoor air temperatures should be kept within certain limits to achieve acceptable conditions, with optimum temperatures ranging from 20°C to 22°C ¹.

VRF Rotary Switches
11/07/2025

VRF Rotary Switches

The additional refrigerant charge calculation in HVAC systems typically depends on the type of refrigerant, the system's...
05/07/2025

The additional refrigerant charge calculation in HVAC systems typically depends on the type of refrigerant, the system's design, and the piping layout. A common formula for calculating additional refrigerant charge is:
Additional Charge = (Liquid Line Length x Liquid Line Charge Rate) + (Suction Line Length x Suction Line Charge Rate)
The charge rates for liquid and suction lines vary by refrigerant type and pipe diameter. These rates are usually provided by the manufacturer or can be found in refrigerant charge calculation tables.
For example, for R-410A refrigerant, the charge rate might be approximately 0.602 ounces/foot for a 3/8" liquid line. However, this value can differ based on the specific application and system requirements.
For R-410A, here are some general guidelines for calculating additional refrigerant charge:
Charge Rates for R-410A
Liquid Line Charge Rates (approximate):
1/4" (6.35mm) diameter: around 0.28-0.30 oz/ft
3/8" (9.52mm) diameter: around 0.60-0.64 oz/ft
1/2" (12.7mm) diameter: around 1.14-1.20 oz/ft
Suction Line Charge Rates (approximate):
1/2" (12.7mm) diameter: around 0.16-0.18 oz/ft
5/8" (15.88mm) diameter: around 0.26-0.30 oz/ft
3/4" (19.05mm) diameter: around 0.38-0.42 oz/ft
Calculation Formula
Additional Charge = (Liquid Line Length x Liquid Line Charge Rate) + (Suction Line Length x Suction Line Charge Rate)
Example Calculation
Let's assume:
Liquid line diameter: 3/8" with a length of 50 feet
Suction line diameter: 5/8" with a length of 50 feet
Using the charge rates above:
Liquid line charge: 50 ft x 0.62 oz/ft = 31 oz
Suction line charge: 50 ft x 0.28 oz/ft = 14 oz
Additional Charge = 31 oz + 14 oz = 45 oz

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