Bunn ITCB-DV manual Improper water pressure, psi 138 and 620 kPa, Head for lime buildup, Buildup

Models: ITCB-DV

1 79
Download 79 pages 183 b
Page 73
Image 73

TROUBLESHOOTING (cont.)

 

 

 

 

PROBLEM

 

PROBABLE CAUSE

 

REMEDY

Inconsistent beverage level in

 

1. Strainer

 

Direction of flow arrow must be

server/dispenser

 

 

 

pointing towards the brewer. Re-

 

 

 

 

move the strainer and check for

 

 

 

 

obstructions. Clear or replace.

 

 

2. Improper water pressure

 

Check operating water pressure to

 

 

 

 

the brewer. It must be between 20

 

 

 

 

and 90 psi (138 and 620 kPa).

 

 

3. Brew valve

 

Test the brew valve. Refer to test

 

 

 

 

outputs on page 56. 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.

 

 

4. Dilution valve

 

If dilution is being used on the in-

 

 

 

 

consistent brewing recipe, test the

 

 

 

 

dilution value. Refer to test outputs

 

 

 

 

on page 56. Turn the valve on for

 

 

 

 

30 seconds and collect the water

 

 

 

 

collected from the nozzle. Repeat

 

 

 

 

the test several times to confirm

 

 

 

 

a consistent volume of dispensed

 

 

 

 

water. If not consistent, check the

 

 

 

 

valve, tubing and nozzle for lime

 

 

 

 

buildup.

 

 

5. Lime buildup

 

Inspect for lime buildup that could

 

 

 

 

block the tank, tank fittings, tubing,

 

 

 

 

valves and sprayhead.

 

 

6. Brew volume adjustment

 

Adjust the brew volume as required

 

 

 

 

to achieve the recommended vol-

 

 

 

 

ume for each brew cycle.

Page 73

36748 080904

 

Page 73
Image 73
Bunn ITCB-DV manual Improper water pressure, psi 138 and 620 kPa, Head for lime buildup, Buildup, Lime buildup