Installation Instructions

Power supply and batteries
External power supply PP2004
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5.3 External power supply PP2004
The external power supply 'Merawex ZSP135 DR-7A-3 40 Ah' PP2004-A1 is a
wall-mounted power supply with batteries and the following connections:
● 230 V mains connection via power supply terminals
● 1x DC 24 V battery connection
● 2x DC 24 V supply outputs
● Input for pre-assembled temperature sensor
● 2x plug connections for the supply system and battery monitoring signaling
function
Fig. 36: Wiring diagram for the batteries in the PP2004-A1
Ba
Battery separator, positive conductor
Battery +
Positive connection terminal DC 24 V
Battery -
Negative connection terminal DC 0 V
● The battery connection cables must be as short as possible.
● The positive and negative conductors must be routed together, either slightly
twisted or in a spiral cable.