12.2 - Description
12.2.1 - Low-temperature brine solution
options
Brine solution production from 5°C to -8°C is only possible with
the low-temperature brine solution option.
For the medium-temperature brine solution option, the unit is
equipped with insulation on the intake tubes.
For the low-temperature brine solution option, the measuring and safety
devices are protected by additional insulation.
The operating range is based on:
- the unit size.
- the type of glycol.
- its concentration.
-
the flow rate.
- the temperature of the brine solution.
- the condensing pressure (room temperature).
Refrigerant charge for the low-temperature brine solution option
AQUACIAT
POWER™
LD
0602R
0650R
0750R
0900R
1100R
1200R
1350R
1400R
1600R
1750R
Refrigerant
Circuit A
kg
5,10
7,70
7,70
9,00
9,00
11,30
12,00
16,30
17,00
17,30
tCO
2
e
3,4
5,2
5,2
6,1
6,1
7,6
8,1
11,0
11,5
11,7
Circuit B
kg
9,00
9,00
9,00
9,00
9,00
15,80
16,50
16,30
17,00
21,70
tCO
2
e
6,1
6,1
6,1
6,1
6,1
10,7
11,1
11,0
11,5
14,6
AQUACIAT
POWER™
LD
1800R
2000R
2200R
2400R
2650R
2800R
2950R
3200R
3500R
Refrigerant
Circuit A
kg
17,60
22,50
Refer to the unit name plate.
tCO
2
e
11,9
15,2
Circuit B
kg
22,10
22,50
tCO
2
e
14,9
15,2
Frost protection
The low-pressure and frost protection thresholds of the evaporator
depend on the antifreeze level in the water loop.
The evaporator pinch (LWT – SST) and the antifreeze protection
threshold depend on this level.
It is therefore crucial to check the amount of antifreeze in the loop
carefully during the initial system start-up (allow it to circulate
for 30 minutes to check that the mixture is homogeneous before
sampling).
Refer to the manufacturer or supplier data to define the freezing
temperature according to the measured concentration level.
The minimum temperature for frost protection must be entered in
the parameters on the unit's controller.
This value will be used to configure the following protection:
1. Evaporator antifreeze protection.
2. Low pressure protection.
For information, based on the antifreeze solutions used in our
laboratories, the protection values provided by our supplier are
as follows (these values may change depending on the supplier):
Required glycol concentration
Freezing curve for Ethylene and Propylene glycol
Glycol concentration (%)
Minimum frost protection temperature (°C)
Ethylene glycol (%)
Propylene glycol (%)
Minimum frost protection temperature to be observed
based on the water outlet temperature
12 - OPTIONS
EN-55
AQUACIAT
POWER
™ LD/ILD
Summary of Contents for AQUACIAT POWER LD 1100R
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