Hawke’s Bay
Manual
18| P a g e 1 0 - 4 2 5 - 1 R E V : - F W : X X X
a.
Absorb Time
–
Calculate the normal Absorb time then add one hour. This will
ensure that enough time is allowed for Ending Amps to be achieved.
b.
Ending Amps
–
Usually 1
–
3% of batt bank Ah capacity.
c.
Battery Capacity
–
Batt bank’s 20
-hr Ah capacity.
d.
Amp-Hour Efficiency
–
Good starting point is 80% for flooded; 85% for sealed; 94%
for Lithium.
2.
Go to Setup / MPPT Config / External Sensors, then WBJr, and set to Battery.
Battery Sense Circuit
The
Hawke’s Bay
measures battery bank voltage via the Batt+ and Batt- cables connected to the
battery bank, and it compares that measured voltage with the Battery Sense Circuit connection.
If the Battery Sense voltage is within a pre-set range, the system will automatically use this
voltage versus the voltage on the high current connections (the Hawke’s Bay’s actual battery
cables). Only one Battery Sense wire connection to the battery bank is required for an entire
system (i.e., multiple Hawke’s Bays
, Barcelonas, and/or Rosie inverter/chargers).
Connect two
#22 AWG
wires from the #4 terminal block (See
Figure 2
) directly to the battery
bank master positive and negative terminals. Install a
1A
fuse on the positive wire. Use the
shortest length of wire possible. Crimp terminal lugs (ring connectors) on the ends that connect
to the battery terminals.
HAWKE’S BAY
WIRING
PV
(Figure 17)
•
Connect PV+ and PV- wires to the
Hawke’s Bay
terminal block.
•
Torque to 39.8 in-lbs.
•
Route PV- directly from the PV array to the
Hawke’s Bay PV
- terminal.
Figure 17
The WBJr can be installed with the purple wire pointing left or right.
BUT
… the battery
negative cable must be on the same side as the purple wire!
