Page 3 of 65
PG2021 CHV2-VP-ECM-V2
Wiring Diagram Standard EC-S1 Control PCB .............................................................................................................. 32
Configuration Settings ............................................................................................................................................... 33
Control Logic For 2-Pipe System.................................................................................................................................. 34
With Valve Configuration .................................................................................................................................... 34
Control Logic For 4-Pipe System.................................................................................................................................. 37
2-pipe Control Logic -With 6-way modulating Valve Configuration .............................................................................. 39
Sleep Mode ................................................................................................................................................................ 41
Buzzer ....................................................................................................................................................................... 42
Auto Restart .............................................................................................................................................................. 42
On/Off Switch On LED Display .................................................................................................................................. 42
Drain Pump.............................................................................................................................................................. 42
Float Switch ............................................................................................................................................................. 42
Electric Heater Safety Switch .................................................................................................................................... 42
Low Temperature Protection of Indoor Coil in Winter ................................................................................................ 43
Open Modbus Protocol............................................................................................................................................. 44
Network Setup ......................................................................................................................................................... 48
LED Display and Error Description ............................................................................................................................ 50
Control Specifications: Flexible Function (W Type) ........................................................................................................... 51
Features ..................................................................................................................................................................... 51
I/O Port Definitions .................................................................................................................................................... 51
Onboard configuration ............................................................................................................................................... 51
Wiring Diagrams ........................................................................................................................................................ 52
Control Logic Specifications ........................................................................................................................................ 53
Unit Power ON/OFF ............................................................................................................................................. 53
Alarm Protection and Error Display ...................................................................................................................... 53
Drain Pump Operation ......................................................................................................................................... 53
Modulating Signal Input ...................................................................................................................................... 53
Electrical Heater Operation ................................................................................................................................. 53
Low Temperature Protection of Indoor Coil in Winter .......................................................................................... 53
This is frost protection for when the unit is off to prevent water in the coil and room from freezing............................... 53
LED Display and Error Description ............................................................................................................................... 54
User Interface ................................................................................................................................................................... 55
Remote Handset ......................................................................................................................................................... 55
Wired Wall Pad ........................................................................................................................................................... 56
LED display .......................................................................................................................................................... 56
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
