ELGA PURELAB UHQ II & PS Service Manual
PURELAB UHQ II & PS Service issue 2 03/07
17
8. ELECTRICAL CONNECTIONS
UHQ wiring diagram
Note: Older versions of the UHQ may have a slightly different layout but the electrical
connections and calibration pots are still in similar locations.
WARNING!
The RECIRC switch SW1 MUST always be left in the INT
RECIRC position. Continuous recirculation will result in
excessive temperature build up in the ultra pure water and a
short pump life.
!
LEVEL RESISTIVITY
SW1
CONT
INT
RECIRC
BOTTOM TOP
SCALE SCALE
BOTTOM TOP
SCALE SCALE
P2 P3 P4 P5
.
.
.
.
L
E
V
E
L
BLACK
YELLOW
RED
.
.
.
.
L
IN
E
C
E
L
L
BLACK
YELLOW
BLUE
Live Neutral
S
UV
UV ballast
Power inlet
module
Recirculation
pump
Inlet solenoid
valve
