Hoshizaki DBF-40SAC, Service Manual

Page: 37 / 37

35
9. MAKING AND REPLACING COOLING WATER
1) How to make cooling water
Electric conductivity (E.C.) of cooling water for water tank
Do not use tap water.
Fill the water tank with water having 100-300
μ
S/cm of E.C.
Measure the electric conductivity with conductivity meter.
*E.C. : Physical property to show the ability of conducting electricity.
Unit:
μ
S(microsiemens)/cm
Below 100
μ
S/cm:
Compressor may not work resulting in poor cooling performance.
Above 300
μ
S/cm:
Excessive ice may build up on evaporator and freeze beer inside beer coil preventing beer from
being dispensed properly.
How to make cooling water with 100-300
μ
S/cm of E.C.
The capacity of the water tank of this unit is approx. 16 L.
Make the cooling water by dissolving 3 g of pure baking soda in approx. 16 L of distilled water.
Step 1
Measure 3 g of pure baking soda with nozzle cap (accessory).
Step 2
Fill a bucket with approx. 16 L of distilled water and stir well after adding the 3 g of baking soda
measured in step 1.
Use a conductivity meter if measuring E.C.
Rinse the nozzle cap after use.
2) Replacing cooling water
Replace the cooling water twice a year.
Cap for Foam Nozzle (1g)
Nozzle Cap
Nozzle Cap 1/2 (3g)
Distilled Water
(approx. 16 L)
Bucket