Page 38 - Climate Control News May 2022

New products
LEFT: Technology to ensure HVAC systems are performing at their best.
Operate at optimal levels
extended version of the company’s world leading PICV, the OPTIMA Compact. Every feature and benefit from the original product can still be found in the Veriflow-series.
The major benefit is the significant energy savings that can be achieved in HVAC systems through maximising Delta T and eliminating overflows in the system.
In addition, the OPTIMA Compact, Veriflow- series offers a brand-new P/T plug design on the DN10-DN50 range and an additional P/T plug on larger sizes up to DN300.
This allows for both flow verification and veri- fication of minimum differential pressure across the valve. This is the first PICV on the market to integrate both functionalities in the original valve housing without add-ons and additional space requirements.
Global HVAC product manager at Frese, Prze- myslaw Klosiak, said it was named the Veriflow- series because it provides verification of the flow through the valve.
“With this evidence the engineers can be com- pletely certain that the system has been commis- sioned and balanced optimally for the sizing con- ditions,” he said.
The LOGICA Digital, Energy-series is another step in a new direction for the company.
This incredibly compact digital actuator is designed to optimise energy usage in HVAC systems during operation through direct com- munication with the building’s BMS via either Modbus or BACnet.
Because of that connectivity many tasks that would have required hands-on management can now be achieved remotely in the BMS.
Remote full flow flushing without PICV stroke limitation is also possible.
WITH THE NEWEST OPTIMA Compact valve and LOGICA Digital actuator, Frese provides deep insight into heating and cooling systems, allow- ing for full energy optimisation in both commis- sioning and operation.
This ensures that the HVAC system is per- forming at its very best at all times.
Frese, well known for its pressure independ- ent control valve (PICV) technology, is launch- ing two new products which, when combined, make it possible to both commission and oper- ate a heating or cooling system at a fully opti- mised level.
With this solution Frese continues to bring its decades of know-how and expertise on flow management technology into the digital age.
Frese product manager, Andy Gibbs, said this solution has strong benefits in all phases of a building project.
“It reduces installation and system commis- sioning time significantly,” he said.
“There are huge advantages for system inte- grators due to the many functionalities built into the actuators’ algorithms.
“It contains live monitoring of system status and is easy to maintain. And because of the sig- nificant energy savings it is good for the bottom line, both financially and environmentally.”
The two-tier solution consists of the OPTIMA Compact, Veriflow-series valve and the LOGICA Digital, Energy-series actuator.
The OPTIMA Compact Veriflow series is an
Centrifugal chillers with compressor options
MITSUBISHI HEAVY INDUSTRIES Thermal Systems Ltd will launch a new series of large-ca- pacity centrifugal chillers in June using the re- frigerant HFO-1234yf.
The series will have two models: the constant- speed JHT-Y and the inverter-equipped JHT-YI.
Both new models feature capacities ranging from 300 to 5,400 refrigeration tonnes (RT) with the maximum capacity representing a 400 RT increase over the “GART-ZE/ZEI” series launched in 2017.
The JHT-Y and JHT-YI are the first centrifugal chillers with capacities up to 5,400 RT offered com- mercially in Japan to feature a low-GWP refriger- ant. Together with the ETI-Z series of centrifugal chillers in the small-to-medium capacity range launched in 2015, MHI Thermal Systems will now offer a full line-up of low-GWP refrigerant models in variations spanning from 150 to 5,400 RT.
The new series also adopts an all-new type of
compressor. Increasing the variety of models en- ables selection of the optimal compressor to match the output of the chiller, to realize high performance throughout the capacity range.
The constant-speed model features a rated COP(Note4) of 6.9, which, as before, provides one of the world’s highest levels of en-
ergy efficiency together with com-
pact size.
Chillers in the new series can
also be controlled with su- preme precision using the lat- est microcomputer operation panel, and both the constant- speed and inverter models can respond to diverse appli- cations including low-tem- perature, heat-pump and heat-recovery specifications.
The new chillers can be controlled using a microcomputer operational panel.
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