SunMaxx Solar | 5098 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
RELA
Y FUNC
TIONS
6.6.2 ΔT Return Flow
Switch-on temperature difference:
When this difference is exceeded between return fl ow sensor and storage sensor, the relay is switched on.
Settings range: 5-20 K / Default setting: 8 K
Switch-off temperature difference:
When this difference is exceeded between return fl ow sensor and storage sensor, the relay is switched off.
Settings range: 2-19 K (limited by ΔT Storage RF On) / Default setting: 4 K
6.6.3 Return Flow (Sensor)
Determines the sensor for return fl ow increase.
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
6.6.4 Storage (Sensor)
Determines the storage sensor
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
6.7 COLLECTOR FIELD COOLING
This function controls an external coolig unit to cool down the collector.
Settings range: On, Off
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 setting: 120°C (248°F)
6.7.1 Tmax Field
When the temperature falls below Tmax fi eld +Hys min, the relay is switched off.
Settings range:-20°C to -2°C (-4°F to -28°F) / Default setting: -5°C (23°F)
6.7.2 Hys min
To protect the cooling unit itself from damage, the relay is switched off as soon as the temperature at the reference sensor reaches Tmax fi eld +
Hys max
Settings range:2°C to 60°C (36°F to 140°F) / Default setting: -20°C (-4°F)
6.7.3 Hys max
