HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 12.122 H
Water chillers and
air-water heat pumps
33
CIATCooler LP
Note: These pumps can operate with glycol water (mono-ethylene glycol), although with a reduction of the available pressure (due to the fl ow variation
with glycol water). The correction coeffi cients for operation with glycol water can be referred to in the technical brochure for CIATCooler units.
Circulation pumps available for LPC / ILPC
Corrosion behaviour
* Max. 60ºC
+ Good resistance under normal conditions.
0 There may be corrosion problems, especially if other factors intervene.
- Not advisable.
Note: For open-circuit installations, if it is not possible
to maintain the water conditions within the values
indicated in the previous table, it will be necessary to
install an exchanger that separates the unit's circuit
from the water circuit to be treated by using materials
compatible with these characteristics, whether stainless
steel or titanium.
The units' hydraulic circuits are made of copper pipes. The exchanger
plates are made of AISI-316 stainless steel, and the material used for
soldering the plates is copper.
The following table indicates corrosion behaviour for copper and the
AISI-316 stainless steel with regard to water with different compositions.
Values outside these ranges can cause corrosion problems in the
hydraulic circuit and in particular in the plate exchangers.
It is recommended that the water fi lling the hydraulic circuits be fi ltered
and treated, if necessary.
Water content Concentration (mg/l) AISI 316 Copper
Organic substances + 0
Electrical
conductivity
< 500 μS/cm + +
> 500 μS/cm + -
NH
3
< 2 + +
2 - 20 + 0
> 20 + -
Chlorides *
< 300 + +
> 300 0 +
Sulphites, chloride-free
< 5 0 +
> 5 0/- 0
Iron in solution
< 10 + +
> 10 + 0
Free carbonic
acid
< 20 + 0
20 - 50 + -
50 + -
Manganese in
solution
< 1 + +
> 1 + 0
pH value
< 6 0 +
6 - 9 0/+ +
> 9 + 0
Oxygen
< 2 + +
> 2 + +
Sulphates
< 70 + +
70 - 300 + 0
> 300 - -
CIATCooler LPC / ILPC
90V-
STD
100V-
STD
120V-
STD
160V-
STD
180V-
STD
200V-
STD
240V-
STD
280V-
STD
320V-
STD
360V-
STD
420V-
STD
480V-
STD
600V-
STD
640V-
STD
720V-
STD
840V-
STD
960V-
STD
90V-
HEE
100V-
HEE
120V-
HEE
160V-
HEE
180V-
HEE
200V-
HEE
240V-
HEE
280V-
HEE
320V-
HEE
360V-
HEE
420V-
HEE
480V-
HEE
600V-
HEE
640V-
HEE
720V-
HEE
--
Standard
No. single pump 3.171 3.172 3.172 3.173 3.174 3.174 3.174 3.175 3.175 3.175 3.179 3.179 3.179 3.179 3.179 3.234 3.234
No. double pump
-- -- -- -- -- 3.181 3.181 3.182 3.182 3.182 3.186 3.186 3.186 3.186 3.186 3.237 3.237
High-pressure
(optional)
No. single pump 3.173 3.173 3.174 3.174 3.175 3.176 3.176 3.176 3.176 3.176 3.180 3.180 3.180 3.180 3.180 3.236 3.236
No. double pump
-- -- -- -- -- 3.183 3.183 3.183 3.183 3.183 3.187 3.187 3.187 3.187 3.187 3.239 3.239
Low-pressure
(optional)
No. single pump -- 3.171 3.171 3.171
(*)
3.229 3.229 3.229 3.229 3.230 3.230 3.232 3.232 3.233 3.233 -- 3.235 3.235
Double or lag pump depend on the model.
Not available for the 160V-HEE model.
1 3 4 5 7 8 9 10 15 20
10
20
30
40
3025
Available pressure (m.w.c.
)
Flow (m
3
/h)
3.171
3.172
3.173
3.174
3.181
3.175
3.182
3.176
3.183
3.230
26
40 50 7060
3.179
3.186
3.233
3.180
3.187
3.232
3.229
3.236
3.239
3.234
3.237
3.235
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