SMA SUNNY ISLAND 8.0H - Charging the Battery

6 Electrical Connection SMA Solar Technology AG
64 SI80H-60H-OffGrid-IA-en-11 Installation Manual
6.25 Connecting the Control Cable for the Battery-Room Fan
If the charging current leads to the emission of gases from the battery, the battery-room fan is switched
on by the off-grid inverter for at least one hour.
If the battery room is ventilated by a battery-room fan, always connect the battery-room fan as follows:
1. Ensure that the battery room is sufficiently ventilated in the case of a malfunction of the multi-
function relay.
2. Connect the battery-room fan for single systems and single-cluster systems:
• Connect the battery-room fan to any multi-function relay (see Section 6.18"Assignment of
Multi-Function Relay",page54).
• Enter the function of the multi-function relay used in the configuration table
(see Section 7.10.1"Use of the Multi-Function Relays",page90). Note the BatFan value.
3. Connecting one battery-room fan for all batteries for a multicluster system:
• Connect the battery-room fan to any multi-function relay in the main cluster
(see Section 6.18"Assignment of Multi-Function Relay",page54).
• Enter the function of the multi-function relay used in the configuration table (see
Section 7.10.1"Use of the Multi-Function Relays",page90). Note the MccBatFan value.
4. Connecting several battery-room fans for a multicluster system:
• Connect a battery-room fan to a multi-function relay of the master, slave 1 or slave 2 for
every cluster.
• Enter the function of the multi-function relays used in the configuration table
(see Section 7.10.1"Use of the Multi-Function Relays",page90). Note the BatFan value.