Water Connection (A,B,C) In Connection Plan - Convotherm OES 6.10 Manual

4. Water connection
4.1 Water inlet
Water connection position, see point (A, B)
in connection plan.
A water flow plan can be found on the
•
inside of the motor cover.
Unit must be connected to a cold water
•
Picture 14
supply of drinking water quality. Note
label on water inlet.
Find information on water quality and
•
water hardness at your local water
supply company.
Before carrying out the water
•
connection, rinse the customer's water
line.
Customer is to install a stop valve (Y)
•
with drain sieve.
Picture 14
Water pressure (flow pressure) must be
•
min. 200 kPa (2bar) and max. 600 kPa
(6bar). For combi steamers with
automatic cleaning (CONVOClean
system) flow pressure should be min.
300 kPa (3bar).
Water connection using ½" pressure
•
hose with ¾" threaded joint. Assemble
drain sieve!
Adjusted water pressure for OES and
•
OGS :
start up)
Water conducting capacity must be
•
between 10 - 200µS/cm.
The water must have the following
•
characteristics:
– pH: 6.5 – 8.5
– Cl
Picture 14/15
– SO
– Fe ≤ 0.1 mg/l
– Mn ≤ 0.05 mg/l
– Cu ≤ 0.05 mg/l.
– Cl
2
If there are high levels of impurities in
•
the water, add a (X) 0.08 mm sediment
filter.
see Chapter 10 (Operation
-
< 100 mg/l
< 400 mg/l
4
≤ 0.1 mg/l
If the redox potential of the water
•
exceeds 300 mV at a chlorine
concentration (Cl
activated carbon filter (W).
Information from water supplier.
Instruct the user that the filter cleaning
intervals must be maintained.
If the chlorine value (Cl) is exceeded or
•
for the combi steamer OEB/OGB the
water hardness is > 18° dH (33° fH; 23°
eH; 320 ppm (USA)), a hydrogen ionic
exchanger (V) is recommended.
For combi steamer OES/OGS a
•
hydrogen ionic exchanger (V) is
absolutely essential (partial
desalinization system i.e. from the
company Brita) if the water hardness is
> 7° dH (13° fH; 8.8° eH; 125 ppm
(USA)).
Attention: On all units, note the
•
residual hardness of the
demineralized water after the
softening:
– Drinking water quality
– Residual:
min. 5° dH - max. 7° dH
min. 9° fH – max. 13° fH
min. 6.3° eH - max. 8.8° eH
min.90 - max.125 ppm (USA).
For more information, see Drinking Water
Installation data sheet
42
EN
Picture 14/15
> 0.1 mg/l) add an
2
Picture 15