Maximum System Size

The CP4-R, MC4-R, PC4-R, and DIN-AP4-R control processors are capable of controlling homes of different sizes. The maximum system size recommendation is listed below.

NOTES:

  • For a list of devices that are supported by Crestron Home OS, refer to Works with Crestron Home OS.

  • The Multiple Processors column on the right below indicates the maximum number of devices available across all processors. The individual processor system size recommendations should be followed when using multiple processors.

System Size Recommendations

  MC4‑R DIN‑AP4‑R CP4‑R PC4‑R Multiple Processors
Multiple Processors    
Parent Processors 1 1 1 1 -
Child Processors 4 4 4 4 -
Keypads and User Interface Devices    
Touch Screens or TSR-310s 12 12 24 24 40
Remotes (HR series) 16 16 24 24 24
Remotes per Room 1 1 2 2 2
Keypads 60 60 120 120 240
Audio    
Audio Sources 24 24 24 24 48
Crestron Speaker Zones 32 32 56 56 72
Active Audio Groups 4 4 4 4 4
Rooms in an Audio Group 10 10 20 20 20
Sonos Speaker Zones or Players 8 8 16 16 16
Video    
Video Sources 16 16 32 32 54
Video Zones 16 16 32 32 40
Displays in a Room 7 7 7 7 7
AV Receivers 3 3 6 6 6
Apple TV® Devices with Apple HomeKit™ Technology1 5 5 5 - 5
Gateways    
Crestron Wireless (External) 14 15 15 15 15
Crestron Wired (External) 14 14 14 14 14
DMX-C 3 3 3 3 3
DALI 15 15 15 15 15
Philips Hue Bridge 12 1 1 1 1
Lutron Processors 1 1 1 1 1
Lights and Shades    
Shades and Drapes 50 50 100 150 200
Lighting Loads (total) 100 100 300 600 600
DMX-C Lights 255 255 255 255 600
Climate Control    
Thermostats 12 12 32 32 40
BACnet Objects3 500 500 2,000 2,000 2,000
Security and Locks    
Security Systems 2 2 2 2 2
Locks 4 4 6 6 6
Streaming Cameras 25 25 25 40 40
Other Devices    
Sensors 16 16 32 32 32
  1. Refer to Pair Apple TV with Apple HomeKit for detailed configuration and pairing details. The PC4-R does not support Apple HomeKit.
  2. Use the Phillips Hue driver with MC4-R processors that are version 2 or later. MC4-R V2 processors have a serial number greater than 2211JBH14341 or greater or the model number report as "MC4-R (HW Ver 2) Cntrl Eng" when running the "ver -v" command in Crestron Toolbox Software.
  3. The full BACnet network/IP license is included with Crestron Home processors to support the maximum number of BACnet objects. No additional purchase required.

Quick Action and Scene Limits

Maximum Quick Actions and Scenes

Limit Type Qty.
Whole House Limits
Quick Actions 50

Note:The Crestron Home app displays up to 20 Quick Actions on the Home tab.
Climate Scenes 150
Room-Level Limits
Quick Actions 50

Note:The Crestron Home app displays up to 20 Quick Actions per room.
Lighting Scenes 50
Shade Scenes 50
Media Scenes 200