4 Device description
EN
4
Rittal HD air/water heat exchangers
– Divodes FG VT29 (alcohol-based disinfectant)
The tested products made by JohnsonDiversey cover all
usual chemical material groups and cleaner types used
for the food processing industry (except cleaning mate-
rials that contain halogenated compounds) and allow
conclusions to be made about JohnsonDiversey's com-
plete cleaner palette in the food processing industry ar-
ea.
Details for the usual concentrations are contained in the
data sheets for the associated cleaner and disinfection
product.
3.2
Cleaning
The air/water heat exchanger should always be
cleaned
– after delivery and installation,
– after servicing work,
– regularly in accordance with your internal cleaning
schedule.
The following items must not be used for cleaning
– Sharp, hard or pointed objects,
– abrasive procedures that change the surface rough-
ness of the material,
– cleaning materials that can impair health and which
contain solvents,
– cleaning materials that contain halogenated com-
pounds, e.g. chlorides (danger of pitting for stainless
steel 1.4301/AISI 304).
3.3
Cleaning utensils
Prior to use, ensure that the cleaning utensils are clean
and in a proper hygienic state. If necessary, these uten-
sils should be disinfected prior to use.
– Cleaning utensils must not shed to the surfaces and
components anything that could impair the foodstuff
(for example: Cloths must be lint-free; bristles must
not break).
– The cleaning utensils should be checked prior to use.
– Cleaning utensils may not be used when they them-
selves are not free of rust (danger of extraneous rust
for stainless steel).
4
Device description
4.1
Overview
Depending on the model chosen, your air/water heat ex-
changer may vary in appearance from the illustrations
contained in these instructions. However, the functions
are identical in principle.
Fig. 1:
Device description
Key
1
Cover
2
X1 terminal strip (unit rear)
3
Thermostat (unit rear)
4
Potential equalisation (unit rear)
5
Rating plate (unit rear)
6
Cooling water return (underside of the unit)
7
Condensate water discharge (underside of the unit)
8
Cooling water inlet (underside of the unit)
9
Dispatch bag
4.2
Functional description
Air/water heat exchangers are designed and built to dis-
sipate heat from enclosures by cooling the air inside the
enclosure and so protect the temperature-sensitive
components.
Air/water heat exchangers are particularly appropriate
for the temperature range of +1°C to +70°C where com-
parable units, such as air/air heat exchangers, enclosure
cooling units or fan-and-filter units, cannot be used for
system reasons to effectively and economically dissipate
heat loss.
Hygiene risk!
Improper cleaning can cause damage to the
housing surfaces and so produce favourable
conditions for the depositing and propaga-
tion of dangerous micro-organisms. Conse-
quently, the following notes must be
observed.
Note:
It is recommended to use a cloth or brush for
cleaning. If cleaning is done using high pres-
sure, care must be taken to ensure that the
installed silicone seals are not damaged.
1
7
2, 3, 4, 5
9
6
8