rada DRV40 - Common Fault: Blend Circuit Temperature Issues; Blend Circuit Not Returning to Normal Temp

62
Stop Valve
Full Bore Isolating Valve
Pressure Reducing Valve
Shower
Thermometer
Cold Water
Hot Water
Mixed Water
Check Valve
Recirculation Pump
Key
Strainer / Filter
Needle Valve
Flow indicator
Safety Valve
Water
Heater
Temp High 53˚C
Setpoint 49˚C
Temp Low 38˚C
Setpoint 49˚C
Temp High
Error Temp
49˚C
Problem: “LCD Display shows any of the following...”
Blend circuit / 'DRV Programming
Software'
Blend circuit does not fully return to normal
temperature within the 'Disinfection
Timeout' period. Check the following:
• Disinfection Timeout value.
• Cool Down start and nish times.
• Early abort of disinfection cycle.
• Use of a dump valve to speed up cool
down time.
dump valve
position