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PURY and BC Box range
DEP | MITSUBISHI ELECTRIC EUROPE | UK
Created on November 11, 2020
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Transcript
R2 City Multi Heat Recovery System
Branch Control (BC) Box
The R2 VRF City Multi system uses a BC Box to allow simultaneous Heating and Cooling operation from a 2 pipe system
COP
The BC Box moves energy from one unit to another creating a super efficient system
Upto
11.85
Simultaneous Heating and Cooling
Half in Cooling
Half in Heating
Capacity Range
You can modulate several VRF Outdoor units together to create one High capacity system upto a maximum of 1100
PURY
Available in capacity range 200 to 1100
P1100
P200
BC Box Range
Click on the BC Box for more Information
Small capacity 4-6 Port
Standard Main 8 to 16 Port
Large capacity Main 16 Port
BC Boxes MUST be installed Indoors and kept within temperature range 0 - 32 degrees Maximum of 140 capacity per BC Box port Reccomended 1 unit per port but it is allowable to have 3 units per port as long as you do not exceed 140 capacity
Sub Box 4-8 Port
Optional Individual shut-off valves for each port available
R2 System Capacity Indexing
When designing and Installing VRF systems you need to make sure the Outdoor unit can operate and accommodate the total amount of Indoor Unit capacity required It is natural to assume that if you are installing a P250 Outdoor Unit you can have 250 worth of Indoor Fan Coils (5 x P50 Indoors for example) This is where system Indexing comes in.......
150%
R2 Systems (PURY/PQRY) allow you to over Index the amount of Indoor Units connected by 150%!!
It works on the assumption that all Indoor Fan Coils will not be operating at the same time, therefore, the system can target the Indoor units that require Heating/Cooling and achieve temperature before other Indoor fan coils come into demand
So what does this actually mean?
If you Installed 1 xPUHY-P250YNW-A Outdoor unit =250 8 x PLFY-P50VCM-E Indoor Fan Coils =400 400 / 250 = 160% This is not acceptable as it exceeds 150%
If you Installed 1 xPURY-P250YNW-A Outdoor unit =250 7 x PLFY-P50VCM-E Indoor Fan Coils =350 350 / 250 = 140% This is acceptable as it is less than 150%