RINSE AID AND SANITIZER ADJUSTMENT:
ADJUSTMENT EXPLANATION (Cont.)
•
Therefore, to increase dispenser pump run time, the time adjustment on the POT must
activate the pump before the valve closes earlier in the cycle.
•
If a POT is set to “0” on the adjustment dial, then the pump will start 1 second before
fill/rinse valve closes.
•
If a POT is set to “4” on the adjustment dial, then the pump will start 11 seconds before
the fill/rinse valve closes.
•
For UH-100B, UH-100, and UL-100:
The time the fill/rinse valve is open varies!!
Fig. 7.3.4 shows fill/rinse valve time set to the maximum of 40 secs. In reality, most
machines will keep the factory setting of 25 seconds, but every installation can be
different depending on supply pressure variations. Therefore, the timing chart is
a guide. Fig. 7.3.4 shows the fill POT time set for 40 seconds. Consequently, the fill valve
opens at 110 seconds and closes at 140 secs into the total cycle. In this example, with the
Dispensing POT set at maximum, the pump would start at 129 seconds into the cycle and
shutoff at 140 seconds. The cycle times would be different if the fill POT were set for 25
seconds.
Models UH-200B, UH-200
also may have variations in fill time because the
water level probe controls initial fill time. But, the time that the fill/rinse valve is open
during the final rinse portion of the automatic cycle is fixed at 11 seconds.
Part 7:
SOLID STATE CIRCUIT BOARDS
Figure 7.3.4
Rinse Aid and Sanitizer Pump Adjustment
2 to 40 sec.
Example: Set to 11 sec.
Example: Set to 11 sec.
Example:
Set to 11 sec.
1 sec. min.
Fill/Rinse Valve
Rinse Aid Pump and/or Sanitizer Pump
Fill/rinse valve
closes =
Reference point
for pump run
time
0
10
20
30
40
50
60
70
80
90
100 110
130
140
150 155
120
0
10
20
30
40
50
60
70
80
90
100 110
130
140
150 155
120
9
1
5
6
4
3
7
2
8
0
10
1 sec. min.
30 sec. max
0
10
20
30
40
50
60
70
80
90
0
10
20
30
40
50
60
70
80
90
Fill/Rinse Valve
Rinse aid Pump
11 sec.
{
{
UH-200B
UH-200
UH-100B
UH-100
UL-100
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