Bunn ITB, TWIN manual Improper water pressure

Models: ITB TWIN

1 39
Download 39 pages 50.34 Kb
Page 37
Image 37

TROUBLESHOOTING (cont.)

 

 

 

 

 

PROBLEM

 

PROBABLE CAUSE

 

REMEDY

Inconsistent beverage level in

1.

Improper water pressure

 

Check operating water pressure to

server/dispenser

 

 

 

 

the brewer. It must be between 20

 

 

 

 

 

and 90 psi (138 and 620 kPa).

 

2.

Brew valve

 

Test the brew valve. Refer to test

 

 

 

 

 

outputs on page 48. Turn the valve

 

 

 

 

 

on for 30 seconds and collect the

 

 

 

 

 

water dispensed from the spray-

 

 

 

 

 

head. Repeat the test several times

 

 

 

 

 

to confirm a consistent volume of

 

 

 

 

 

dispensed water. If not consistent,

 

 

 

 

 

check the valve, tubing and spray-

 

 

 

 

 

head for lime buildup.

 

3.

Bypass valve

 

If bypass is being used on the in-

 

 

 

 

 

consistent brewing recipe, test the

 

 

 

 

 

bypass valve. Refer to test outputs

 

 

 

 

 

on page 48. Turn the valve on for

 

 

 

 

 

30 seconds and collect the water

 

 

 

 

 

collected from the funnel. Repeat

 

 

 

 

 

the test several times to confirm

 

 

 

 

 

a consistent volume of dispensed

 

 

 

 

 

water. If not consistent, check the

 

 

 

 

 

valve, tubing and fittings for lime

 

 

 

 

 

buildup.

 

4.

Lime buildup

 

Inspect for lime buildup that could

 

 

 

 

 

block the tank, tank fittings, tubing,

 

 

 

 

 

valves and sprayhead.

 

5.

Brew volume adjustment

 

Adjust the brew volume, calibrate

 

 

 

 

 

sprayhead and bypass as required

 

 

 

 

 

to achieve the desired volume for

 

 

 

 

 

each brew cycle.

Page 37

41581.2 091609

 

Page 37
Image 37
Bunn ITB, TWIN manual Improper water pressure