Installation, use and Maintenance manual - ed. 04/14
16
3.2 - The Control Board- The Controller
The heart of control system is a printed circuit board. The layout with the key input/output
locations is shown below
3.3
Detailed Description of Input and Outputs
3.3.1 - LED Display
On power-up this displays the salinity setting for 3 seconds. During normal running this
shows a single red dot at the lower right hand corner unless an alarm has occurred and
this is retained. In an alarm condition it shows the following codes
01
–
Slow fill
Auto Reset
02
–
Overflow
Manual Reset
03
–
Probes out of sequence
Manual Reset
04
–
Abnormal evaporation
Manual Reset
05
–
Slow Drain
Auto Reset
06
–
External Alarm
Auto Reset
A detailed explanation of these faults and possible causes are detailed in the fault finding
section.
A -LED Display
D -
ISP System Port
G -
Timer
B - Dip switches
C -
RS232 Port
E - Water probes
F - External alarm
H -
Humidistat
I -Thermostat
J - Spare
K -
Wall control
L - Water Inlet Valve
-
N -
Spare
-
T -
Scav. Pump fuse.
O -
Drain
P – Drain fuse
-
S -
Scavenge pump
U -
Live In
V -
Neutral In
W -
Earth In
-
Y - Fan
Circulation pump
Q
Circ. Pump fuse
R
Motor Capacitor
X
