In which systems can the calculated proportional differential pressure mode be used?
In which systems can the measured proportional differential pressure used?
What does LCC stand for?
What are the three most important factors for a life cycle cost calculation for commercial buildings?
What is the average payback time of installing a system with variable speed pumps?
In which types of systems is the constant pressure mode used?
Test results
Q: In which systems can the calculated proportional differential pressure mode be used?
A: In systems where measurement of the differential pressure in the system is not an option and where the valve authority is more than 50%
Q: In which systems can the calculated proportional differential pressure mode be used?
A: In systems where measurement of the differential pressure in the system is not an option and where the valve authority is below 50%
Q: In which systems can the calculated proportional differential pressure mode be used?
A: In systems where the differential pressure is measured in the system and where the valve authority is below 50%
Q: In which systems can the measured proportional differential pressure used?
A: Systems where the differential pressure is measured over the pump and the valve authority is below 50%
Q: In which systems can the measured proportional differential pressure used?
A: Systems where the differential pressure is measured in the system and the valve authority is below 50%
Q: In which systems can the measured proportional differential pressure used?
A: Systems where the differential pressure is measured in the system and where the valve authority is higher than 50%.
Q: What does LCC stand for?
A: Life Cycle Cost
Q: What does LCC stand for?
A: Long Cycle Cost
Q: What does LCC stand for?
A: Life Cycle Circumstances
Q: What are the three most important factors for a life cycle cost calculation for commercial buildings?
A: Initial cost, operating cost and environmental cost
Q: What are the three most important factors for a life cycle cost calculation for commercial buildings?
A: Initial cost, maintenance cost and energy cost
Q: What are the three most important factors for a life cycle cost calculation for commercial buildings?
A: Initial cost, energy cost and downtime costInitial cost, energy cost and downtime cost
Q: What is the average payback time of installing a system with variable speed pumps?
A: Less than a year
Q: What is the average payback time of installing a system with variable speed pumps?
A: 1-2 years
Q: What is the average payback time of installing a system with variable speed pumps?
A: 2-3 years
Q: In which types of systems is the constant pressure mode used?
A: Systems where the valve authority is higher that 50% of the total pressure loss
Q: In which types of systems is the constant pressure mode used?
A: Systems where the valve authority is lower than 50% of the total pressure loss
Q: In which types of systems is the constant pressure mode used?
A: None, this control mode is outdated