Description
The PLW is an MPPT controller for off grid PV solar hot water and grid boosted systems. PV hot water solves many difficult installation problems and can perform better than thermal solar hot water under many conditions. The PLW comes as a complete kit which includes a solar isolator, a low voltage heating element, two temperature sensors and a pre wired mechanical safety thermostat. The PLW takes information from two temperature sensors and displays it to the user. This information is also used to control the maximum tank temperature (thermostat function). The resulting system does not need boosting from other energy sources if an adequately sized PV Array is installed. The controller works with 60 cell and 72 cell panels.
FEATURES
No frost protection devices or pumps to fail. No roof reinforcement is needed. No battery required. Flexible: place tank near point of use and panels where convenient. Approved to the IEC62109-1:2010 safety standard.
SPECIFICATIONS
| Max input DC power | 5000 | W |
| Min Input DC operating Voltage | 27 | V |
| MPPT Voltage range | 27-75 | V |
| Input start-up Voltage | 27 | V |
| Maximum MPPT short circuit current | 80 | A |
| Nominal array Voltage | 48 | V |
| Maximum solar array Voc | 100 | V |
| Maximum average load (element) Current | 30 | A |
| Maximum average solar current | 30 | A |
| Load (element) resistance | 205 | Ohm |
| Maximum Voltage between the "Boost" relay terminals | 85 | v |
| Boost relay terminals maximum wire size | 2.5 | mm2 |
| Maximum " Boost" relay contact Current | 300 | Ma |
| PLW operating temperature range ambient | -20 to +50 | oC |
| Temperature sensor operating range | 0 to 100 | oC |
| Maximum ambient temperature without derating | 50 | oC |
| Humidity range (non condensing) | 5-95 | % |
| Maximum storage temperature | 70 | oC |
| Meter accuracy | <+/-2%FSD +2 digits | |
| Maximum wire size for Solar connection | 35 | mm2 |
| Minimum wire size for Solar connection | 6 | mm2 |
| Maximum wire size for Load connection | 16 | mm2 |
| Minimum wire size for Load connection | 6 | mm2 |
| Earth terminal maximum wire size | 6 | mm2 |
| Recommended terminal torque | 5 | Nm |
| Maximum Altitude | 2000 | m |
| PLW size | 520H x 175W x 90D | mm |
| Shipping box approximate size | 535 x 190 x 185 | mm |
| Shipping box approximate weight | 5.8 | Kg |
| IP Rating | 20 | |
| Overvoltage category | 2 | |
| Max pollution degree | 3 | |
| Country of manufacture | Australia | |
| Series Name | PL Series | |
| Standard approval and certification | IEC62109-1:2010 |