Bunn PAF (Ultra) Manuel Du Propriétaire
7
FAULT LIST
Door Lamp
Fault
ON
Normal operation - Powder Auto-Fill ready to dispense
Flashes ON/OFF at 50% duty cycle
Low product level in Powder Auto-Fill hopper
Two flashes about every 2 seconds
ULTRA/Powder Auto-Fill probe circuit open
Three flashes about every 2 seconds
Powder Auto-Fill hopper not in place
Four flashes about every 2 seconds
ULTRA refill exceeded 5 minutes
OFF
Door not closed
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ON TIME (Dispense Time)
OFF TIME (Delay Time)
Switch Position
Seconds
Switch Position
Minutes
0
5
0
3
1
10
1
4
2
15
2
5
3
20
3
6
4
25
4
7
5
30
5
8
6
35
6
9
7
40
7
10
8
45
8
11
9
50
9
12
WATER BYPASS OPTION
Installing a new 3-position On/Off switch will allow you to run the product in Ultra hopper low. The third postion of the
switch does this by grounding the level probe making the PAF think is it full.
DELAYED AUTOFILL CIRCUIT BOARD ADJUSTMENT
1. Unplug PAF unit from power source.
2. Remove rear panel.
3. Set red dipswitch on main circuit board to “ON” position.
4. Adjust on and off time knobs to position desired for proper fill and delay times. (See table below).
5. Replace rear panel, reposition PAF unit onto machine and plug in power cord.
6. The PAF unit will fill the hopper until level probe is reached.
Dispense and Delay times:
The “ON Time” adjustment will set the maximum amount of product that is filled each time the level drops below
the probe. The dispense rate for the PAF is approximately 1.4 ounces per second (this will vary depending on the type of
product and flow rate set up). So if this setting is at position #1 (10 seconds), the machine will dispense about 14 ounces
of product. Position #1 is the suggested starting set point for this machine.
The “OFF Time” adjustment will set the delay time between refilling the hopper, so that the product in the hopper will
not become too diluted (melted down). Position #2 (5 minutes) is the suggested starting set point for this machine.
Please note that the machine will do a complete fill to the level probe at any initial power up and also after the door
has been opened and closed again. If the machine is already filled to the probe at these times then no filling will occur until
product is drawn off.