Rittal 3214.700, Assembly And Operating Instructions Manual, Page: 14 / 20

12 List of spare parts
EN
14 Rittal HD air/water heat exchangers
12 List of spare parts
Fig. 15: List of spare parts 3214.700, 3215.700
Key
10 Radial fan
16 Sealing frame
32 Valve
35 Thermostat
85 Spray eliminator
91 Heat exchanger
13 Hydrological data
To avoid system damage and to ensure safe operation,
Rittal GmbH & Co. KG recommends the use of system
water or an additive whose composition does not differ
from that presented in the following summary.
The complete absence of corrosion under experimental
conditions suggests that solutions with a significantly
higher salt content and greater corrosion potential (such
as seawater) can still be tolerated.
Note:
As well as the spare part number, when or-
dering spare parts the following information
must be provided:
– Unit model
– Fabrication number
– Date of manufacture
This information may be found on the rating
plate.
10
91
32
85
35
16
Hydrological data Unit Limits
pH value 7…8.5
Calcium hardness °dH >3 …<8
Free carbonic acid mg/dm³ 8…15
Corresponding carbonic
acid
mg/dm³ 8…15
Aggressive carbonic acid mg/dm³ free
Sulphides mg/dm³ free
Oxygen mg/dm³ <10
Chloride ions mg/dm³ <50
Sulphate ions mg/dm³ <250
Nitrates and nitrites mg/dm³ <10
COD mg/dm³ <7
Ammonia mg/dm³ <5
Iron mg/dm³ <0.2
Manganese mg/dm³ <0.2
Conductivity μS/cm <2200
Residue on evaporation mg/dm³ <500
Potassium perman-
ganate
mg/dm³ <25
Suspended matter mg/dm³ <5
mg/dm³
>3…<15;
partial current puri-
fication recom-
mended
mg/dm³
>15;
continuous purifi-
cation recom-
mended
Tab. 5: Hydrological data