Mitsubishi Electric Y Series Manual page 12

R2
12
Simultaneous Cooling and Heating
• Features
• Specifications
• Optional parts
• BC controllers
• Technologies and functions
The world's first* two-pipe system that
simultaneously cools and heats
The CITY MULTI R2-Series offers the ultimate in freedom and flexibility. Cool one zone while heating another. Our
exclusive BC controller makes two-pipe simultaneous cooling and heating possible. It is the technological heart of the
CITY MULTI R2-Series. It houses a liquid and gas separator, allowing the outdoor unit to deliver a mixture of hot gas for
heating and liquid for cooling, all through the same pipe.
This innovation results in virtually no energy wasted by being expelled outdoors. Depending on capacity, up to 50 indoor
units can be connected with up to 150% connected capacity.
• Installation image (R2-Series)
Refrigerant piping:
2-pipe type
Meeting room
Heating
• System Pipe Lengths
Refrigerant Piping Lengths
Total piping length
(E)P200 –(E) P300
(E)P350 –(E) P550 (single module)
(E)P400 –(E) P600
(E)P650
(E)P700 –(E) P1100
Maximum allowable length
Maximum length between outdoor
and single/main BC controller
*Maximum total length is dependent upon the distance between
the outdoor unit and the single/main BC Controller.
Maximum length between single/main
BC controller and indoor
and sub-BC controller*1
*1 When you install a sub-BC controller, please refer to DATABOOK for full details.
*2 When the outdoor unit is installed below the indoor unit, top-bottom differential is 40m [131ft].
*3 Depending on the model and installation conditions, top-bottom differential 90m [295ft] (o/u above) and 60m [196ft] (o/u below) is available. For more detailed information,
please contact your nearest sales office or distributor.
*4 Distance of Indoor sized P200, P250 from BC must be less than 10m [32ft], if any.
*5 Distance of Indoor sized P200, P250 from BC must be less than 20m [65ft], if any.
-Series
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙P.13 - P.16
PURY-P Y(S)NW-A1(-BS)
Standard
PURY-EP Y(S)NW-A1(-BS)
High e ciency
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙P.62
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ P.101 - P.111
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙P.162
EP
Outdoor Meeting room
unit
Cooling
Office area
Heating
[( E) P200–(E)P1100 ]
Maximum meters [Feet] Vertical differentials between units
Indoor/outdoor (outdoor higher)
550 [1,804] Indoor/outdoor (outdoor lower)
600 [1,968] Indoor/BC controller (single/main)
750 [2,460]
*Maximum length between single/main BC controller and
800 [2,624]
indoor is dependent upon the vertical differential between
1,000 [3,280] the single/main BC controller and the indoor unit.
165 (190 equivalent)
Indoor/indoor
[541(623)]
Main BC Controller/Sub-BC Controller
110 [360]
40-90 [131-295]
Heat recovery
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ P.42 - P.51
∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ P.52 - P.61
BC controller
Office area
Cooling
Office compartment
*For details of the installation restrictions, refer to the DATABOOK.
Maximum meters [Feet]
50 [164]*3
40 [131]*3
15 [49]*4
30 [98]*5
15 [49]
*This image shows the standard type.
*As of 1992 (according to our in-house survey)
• System example
BC controller (required)*
*R2-Series systems require
the use of a BC controller.
Office area
Cooling
Heating
Between indoor unit and Between indoor unit and
BC controller top- BC controller top-
bottom differential 15m [49ft] *4 bottom differential 15m [49ft] *4
Outdoor unit
Furthest piping length Furthest piping length
Top-bottom Top-bottom
190m [623ft] 190m [623ft]
differential differential
(equivalent length) (equivalent length)
50m [164ft] 50m [164ft]
(actual length 165m [541ft]) (actual length 165m [541ft])
*2 *3 *2 *3
BC controller BC controller
Between indoor units Between indoor units
top-bottom top-bottom
differential 30m [98ft] *5 differential 30m [98ft] *5
Indoor unit Indoor unit
Between indoor unit Between indoor unit
and BC controller and BC controller
top-bottom differential 15m [49ft] *4 top-bottom differential 15m [49ft] *4