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To convert a plus chiller to a minus chiller package, the refrigeration system needs to be modified to accommodate the change in temperature requirements.
Modify the refrigeration system to allow for lower temperatures
Adjust the settings and controls to operate at negative temperatures
Install additional insulation to maintain lower temperatures
Replace any components that are not rated for sub-zero temperatures
Inverter changes speed based on load, while fixed speed operates at a constant speed.
Inverter adjusts motor speed to match the required load, saving energy and reducing wear and tear.
Fixed speed motors operate at a constant speed regardless of the load, leading to higher energy consumption.
Inverter technology is commonly used in air conditioners and refrigerators for energy efficiency.
Fixed speed motors are often found...
Pump HP is calculated using the formula: HP = (Q x H) / (3960 x Efficiency)
HP = Horsepower of the pump
Q = Flow rate of the pump in gallons per minute (GPM)
H = Total head in feet
Efficiency = Efficiency of the pump as a decimal
Suction head is the vertical distance between the pump impeller and the surface of the liquid being pumped.
Suction head is important in determining the efficiency of a pump.
It is crucial for ensuring that the pump does not cavitate, which can damage the pump.
Examples of suction head include static suction head and dynamic suction head.
Chiller selection is based on various parameters such as cooling capacity, efficiency, size, noise level, and cost.
Cooling capacity: Determine the required cooling capacity based on the size of the space and heat load.
Efficiency: Look for energy-efficient models to reduce operating costs.
Size: Consider the physical dimensions of the chiller to ensure it fits in the designated space.
Noise level: Choose a chiller with lo...
The inlet and outlet temperatures for both the evaporator and condenser depend on the ambient conditions prescribed by ISHRAE.
Inlet and outlet temperatures for the evaporator and condenser will vary based on the ambient conditions specified by ISHRAE standards.
For air-cooled systems, the inlet temperature for the evaporator is typically higher than the outlet temperature, while the opposite is true for the condenser.
IS...
Designing ODU VRF with AHU involves selecting compatible units, determining capacity requirements, and ensuring proper installation.
Select compatible ODU VRF and AHU units based on capacity and efficiency requirements
Calculate the total cooling and heating load of the space to determine the capacity needed
Design the refrigerant piping and electrical connections between the ODU VRF and AHU
Ensure proper ventilation and a...
Refnets are calculated based on the number of referrals made by an individual.
Refnets are typically calculated by counting the number of referrals made by an individual.
The formula for calculating refnets may vary depending on the specific program or system being used.
Refnets can be used to track the effectiveness of referral programs and the performance of individuals in generating referrals.
PIBCV valves are typically installed on the supply side of the chilled water system.
PIBCV valves are installed on the supply side to control the flow of chilled water into the system.
They are often located near the chillers or air handling units.
PIBCV valves help regulate the temperature of the chilled water circulating in the system.
These valves are crucial for maintaining the efficiency and performance of the chilled
IK/TR stands for Installment Key/Total Receivables and NPLV stands for Net Present Loan Value.
IK/TR is a financial metric used to calculate the ratio of total installment payments to total receivables.
NPLV is a financial metric used to determine the net present value of a loan.
IK/TR is important for assessing the repayment capacity of borrowers, while NPLV helps in evaluating the profitability of loans.
Example: If a bo...
The MaX COP of VRF systems is typically higher than that of chillers.
VRF systems generally have a higher COP (Coefficient of Performance) compared to chillers.
VRF systems can achieve COP values of 4 or higher, while chillers typically have COP values around 2 to 3.
The higher COP of VRF systems makes them more energy efficient and cost-effective in the long run.
Top trending discussions
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in May 2019. There were 3 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 6 interview rounds.
I have 8 years of experience in HVAC sales.
8 years of experience in HVAC sales
Managed a team of sales representatives
Successfully increased sales by 20% in the last year
My total Sales Target is 50 Lakhs with 100 ODU. I handle products like electronics, home appliances, and furniture.
Total Sales Target: 50 Lakhs
Number of ODU: 100
Products handled: electronics, home appliances, furniture
Yes, I am aware of how to do heat load and BOQ preparation.
For heat load calculation, I consider factors like building size, insulation, number of occupants, and equipment usage.
For BOQ preparation, I consider materials needed, quantities required, labor costs, and any additional expenses.
I also take into account any special requirements or specifications provided by the client or project manager.
Examples: For heat loa...
I have handled territories in the Midwest region, major dealers include ABC Company and XYZ Inc., and have contributed to a 20% increase in business.
Handled territories in the Midwest region
Major dealers include ABC Company and XYZ Inc.
Contributed to a 20% increase in business
2 Hours -logical ,Apti & case based questions.
My in hand salary is the amount I receive after deductions. The fixed component of my CTC is the guaranteed portion of my salary, while the variable component depends on performance.
In hand salary is the amount received after deductions such as taxes and other withholdings.
Fixed component of CTC is the guaranteed portion of salary, such as base salary.
Variable component of CTC is the portion that can vary based on perf
My expected CTC is negotiable based on the responsibilities and benefits offered for the Assistant Manager position.
My expected CTC is based on industry standards and my level of experience.
I am open to discussing the salary range during the interview process.
I am looking for a competitive salary package that reflects my skills and contributions to the role.
I applied via Company Website and was interviewed before Dec 2022. There were 3 interview rounds.
Heat load for an ice cream chamber is calculated based on factors like room temperature, insulation, and heat generated by equipment.
Calculate the heat gain from the room temperature by considering the difference between the desired temperature inside the chamber and the ambient temperature outside.
Take into account the heat generated by the equipment inside the chamber, such as the compressor and lights.
Factor in the ...
Sensitive heat is the heat required to change the temperature of a substance without changing its state, while latent heat is the heat required to change the state of a substance without changing its temperature.
Sensitive heat is the heat needed to raise the temperature of a substance without changing its state
Latent heat is the heat needed to change the state of a substance without changing its temperature
Examples of ...
The cold room business is expected to grow significantly due to increasing demand for temperature-controlled storage and transportation of goods.
Rising demand for cold storage facilities for perishable goods
Expansion of pharmaceutical and biotech industries requiring temperature-controlled storage
Increased focus on food safety and quality standards driving the need for cold chain logistics
Technological advancements in ...
I applied via Referral and was interviewed before Dec 2022. There was 1 interview round.
I applied via Campus Placement and was interviewed before Mar 2023. There were 3 interview rounds.
Random topic was given
Set of questions based on aptitude
posted on 23 Jun 2022
Test is in aptitudes
I am currently working as a Senior Sales Executive in my current company.
Responsible for managing a team of sales representatives
Developing and implementing sales strategies to achieve targets
Building and maintaining relationships with key clients
Analyzing market trends and competitor activities
Preparing sales reports and presenting them to senior management
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