Application Ranges; Permitted Refrigerants; Coolants - Bitzer K033N Instructions De Service

3 Application ranges

K Series Refrigerant side
allowable 2014/68/EU: fluid
fluids groups 1, 2
EN378: safety
groups A1, A2,
A2L, A3
PS max 33 bar
PS min -1 bar
TS max 120°C
TS min -10°C
The data for allowable pressure (PS) and allowable
temperature (TS) apply to CE approval in accordance
to the EU Pressure Equipment Directive. They may de-
viate depending on the approval scheme.

3.1 Permitted refrigerants

• R134a
• R22
• R290, R1270
• R1234yf
• R1234ze(E)
• R404A
• R507A
• R407C
• R448A
• R449A
• R450A
• R513A
Other refrigerants and refrigerant blends with temperat-
ure glide >2 K upon request. The shell and tube con-
densers are not suitable for the use with R717: ammo-
nia and its blends.
WARNING
Risk of bursting due to counterfeit refrigerants!
Serious injuries are possible!
Purchase refrigerants only from reputable man-
ufacturers and reliable distributors!
32

3.2 Coolants

• Water/brine
Coolant side
• In addition for seawater resistant design: seawater
water/brine
▶ Do not use too much of the anti-freeze agent. Too
K..B series addi-
tionally seawater
10 bar
0 bar
95°C
4°C
with anti-freeze
As a service, BITZER will examine the suitability of pipe
agent: -10°C
materials if a water analysis is provided. The basis for
the examination is the current state of knowledge. How-
ever, due to the complexity of the situation, no absolute
guarantee can be given for absolute resistance to cor-
rosion, particularly since temperature, flow velocity, pH
value, salinity and fouling (deposits and limescale build-
up) have a significant influence. If "pure" water is used
as the coolant, the following limits apply:
high concentrations may result in increased pressure
drops and worse heat exchange properties.
NOTICE
!
!
Risk of corrosion!
Choose a coolant composition that will not cor-
rode the pipe bundles or the reversing covers.
Check the suitability of the mixture.
Electric con- mS/m
ductivity
pH
Water hard- °d
ness
°f
Salinity %
- 2-
HClO /SO ppm
3 4
CO ppm
2
O ppm
2
Cl ppm
2
H S ppb
2
Fe O ppm
3 4
3+
Al ppm
3+
Fe ppm
2+
Mn ppm
+
NH ppm
4
-
Cl ppm
-
HClO ppm
3
2-
SO ppm
4
3-
PO ppm
4
-
NO ppm
3
2-
S ppb
Cu-DHP CuNi10Fe1M
n
<50 <5000
7.5 .. 9 7.0 .. 8.5
4.0 .. 8.5 4.0 .. 8.5
7.0 .. 15.0 7.0 .. 15.0
‒ <5
>1 >1
<5 <20
<0,1 <0,1
<0,5 <1
<50 <50
0 0
<0,2 <0,2
<0,2 <0,3
<0,05 <0,1
<0,5 <0,5
<50 <200
70 .. 300 <400
<100 <200
<2 <2
<100 <100
‒ <5
DB-200-6