Anti-freeze protection
The anti-freeze protection is based primarily on 2 parameters:
ID
Designation
Factory setting
A04
Anti-freeze temperature
4 °C
A05
Anti-freeze protection temperature difference
3 °C
Cooling mode:
If the water outlet temperature (T02) is less than or equal to the anti-freeze protection temperature (T06),
the system switches to anti-freeze protection.
Heating mode:
If the water outlet temperature (T02) is less than the water inlet temperature (T01) or less than the anti-freeze
protection temperature (T06), the system switches to anti-freeze protection.
In both cases, the system only carries on with normal operation once the water outlet temperature rises by
the anti-freeze protection temperature difference.
The anti-freeze temperature is set to +4 °C at the factory.
If glycol is used, it is possible to change the parameters to operate at lower temperatures, depending on the glycol
concentration. The table below can be helpful for this.
Adjustment is only possible after password input. For this purpose, please contact REMKO.
During use and
disposal the product and
safety data sheets of the glycol
type which is used must be
observed.
Glycol
content
Frost
protection
+-2°C
Correction factors when using a
mixture of glycol* and water
Cooling
output
Power
consumption
Medium
flow rate
Pressure loss
Vol. %
°C
K
L
K
PE
K
V
K
D
0
0
1
1
1
1
20
-9
0.960
0.995
1.040
1.19
35
-21
0.950
0.990
1.090
1.35
40
-26
0.925
0.985
1.105
1.51
Use the required type and
mix ratio appropriate for
the application area to ensure
the freezing point.
*
We recommend using an ethylene glycol mixture. Observe the safety and
product data sheets for the glycol type being used.
!
CAUTION
!
CAUTION
REMKO RVS SERIES
18
