| System 4 |
3 Way mixing valve with primery pump
|
|
| Functions |
|
| |
|
| -Primery Circuits :constant flow |
|
| -Secondary Circuits :variable flow,constant temperatur |
|
| -not provided constant temperature in coils |
|
| -Coils ,not subjected to freezing |
|
| |
|
| Balancing |
|
| 1-Open port A-AB fully |
|
| 2-Reduce flow with STAD-P for design flow |
|
| 3-Open port B-AB fully |
|
| 4-Adjust STAD-B for design flow Throurh STAD-P |
|
| |
|
| |
|
| Return to control
valve selection |
|
