SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
RELA
Y FUNC
TIONS
6.4.5.3 Return Flow (Sensor)
Determines the sensor for return flow increase.
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
6.4.5.4 Storage (Sensor)
Determines the storage sensor
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
6.4.6 Collector Field Cooling
This function controls an external cooling unit to cool down the collector.
Settings range: On / Off
6.4.6.1 Tmax Field
If this temperature is exceeded at the reference sensor, the relay is switched on.
Settings range: 100°C to 180°C (212°F to 356°F) / Default: 120°C (248°F)
6.4.6.2 Hys Min
When the temperature falls below Tmax field + Hys min, the relay is switched off.
Settings range: -20°C to -2°C (-4°F to 28°F) / Default: -5°C (-23°F)
6.4.6.3 Hys Max
To protect the cooling unit itself from damage, the relay is switched off as soon as the temperature at the reference sensor reaches Tmax field +
Hys max
Settings range: 2°C to 60°C (35°F to 140°F) / Default: -20°C (-4°F)
6.4.6.4 Field Cooling Sensor
Reference sensor of the collector fi eld cooling function.
Settings range: S1-S8, VFS1-2, active storage, RC / Default: none
CAUTION
This function does not activate the solar pump to cool the collector. Therefore, please refer to the collector protection.
