MITSUBISHI ELECTRIC WY WR2 LINE City Multi VRF User Manual
- May 15, 2024
- Mitsubishi Electric
Table of Contents
MITSUBISHI ELECTRIC WY WR2 LINE City Multi VRF
Specifications:
- Model: WY WR2 LINE
- Outdoor Units
- Weight Reduction: Up from previous model
- Single Module Installation: Less encumbrance
- Higher Efficiency: Up to 82
- New Case in Small and Large Versions
- Evaporating Temperature Control (ETC) Feature Available
- Water Flow Automatic Control
- Occupied Surface
Product Usage Instructions
Installation:
1. Ensure proper space for installation according to the dimensions provided.
2. Connect the necessary water and power supply to the unit.
3. Follow the installation guide for securing the unit in place.
Operation:
1. Power on the unit using the designated switch.
2. Set desired temperature and mode using the control electronics.
3. Monitor the water flow rate and adjust if necessary.
Maintenance:
1. Regularly check and clean the filters to ensure proper airflow.
2. Inspect for any leaks or unusual sounds during operation.
3. Schedule professional maintenance checks annually for optimal performance.
FAQ
- Q: What is the advantage of the new WY and WR2 model?
- A: The new model grants top-of-the-class EER and COP, providing higher energy efficiency and constant temperature attributes of geothermal application.
- Q: How does a geothermal system work with this product?
- A: A geothermal installation uses the ground as a heat source in winter and as a heat sink in summer, utilizing geothermal probes for heat exchange.
- Q: What are the dimensions and weight specifications of the outdoor units?
- A: The external dimensions, net weight, and other specifications for different models are provided in the table above.
Product Overview
New Small and Large case
New water-condensed outdoor units WY and WR2 are available in two module types: Small and Large. The large module allows a capacity up to 24HP (69 kW in Cooling and 76,5 kW in Heating) with just one module, reducing occupied surface in the installation site up to 50% compared to the previous model. For double module configuration room saving can be up to 33%.
Weight reduction
A significant weight reduction compared to the previous model, up to 44% with a Large module, allows an easier installation and transportation of the unit.
Higher energy efficiency
The new WY and WR2 model grants top-of-the-class EER and COP performances. Energy efficiency has been improved for both single and double modules, in Cooling and Heating, up to +34%. This type of systems are among the most effiencient in the world, thanks to high performances and constant temperature attributes of geothermal application.
- *1 Single module
- *2 Double module
WEIGHT REDUCTION
NEW CASE
Water flow rate control
New YLM water condensed outdoor units are equipper with an automatic flow rate control system, which allows reduction of pumping consumption when the system works in partial load conditions. Flow rate control is performed by a 0-10V signal, which controls the regulation valve by shutting or opening it (field supplied). Thanks to factory setting water circulation pumping is performed even during temporary blackout.
HIGHER ENERGY EFFICIENCY
Geothermal applications
WY and WR2 lines outdoor units are perfectly suited for geothermal applications as they use water as the thermal medium fluid which, at depths from 10 m below ground, maintains a practically constant temperature with no significant excursions all year round. A geothermal installation uses the ground as a heat source in winter and as a heat sink in summer. Using geothermal probes (heat exchangers) together with VRF CITY MULTI WY and WR2 systems, heat may be extracted from the ground to warm in winter, and dissipated into the ground to cool in summer.
GEOTHERMAL SYSTEM COMBINED WITH VRF CITY MULTI WY WATER SOURCE SYSTEM
Advantages
WY and WR2 lines VRF CITY MULTI systems have all the benefits of the Y series,
using water evaporation condensing units. Water heat source condensing units
offer the advantage of being installable inside the building, for even greater
installation flexibility with practically no limitations for the dimensions of
the infrastructure. Depending on the capacity of the outdoor unit, up to 26
indoor units can be connected to a single condensing unit, while up to 50
indoor units can be connected to a modular system with individual user and/or
centralized control. The two-pipe system allows the system to transition from
heating to cooling mode and vice versa, for superior comfort in all zones
.
Technical specifications
Technical specifications WY LINE
- Nominal cooling conditions: Indoor: 27°C DB / 19°C WB. Water temperature 30°C. Piping length 7,5 m, vertical difference 0 m.
- Nominal heating conditions: Indoor 20°C DB. Water temperature 20°C. Piping length 7.5 m, vertical difference 0 m.
- Values were measured in an anechoic chamber.
- GWP value of HFC R410A 2088 according to 517 / 2014.
- Nominal cooling conditions: Indoor: 27°C DB / 19°C WB. Water temperature 30°C. Piping length 7.5 m, vertical difference 0 m.
- Nominal heating conditions: Indoor 20°C DB. Water temperature 20°C. Piping length 7.5 m, vertical difference 0 m.
- Values measured in anechoic chamber.
- GWP value of HFC R410A 2088 according to 517 / 2014.