Brine Options (option 5B & option 6B)
Operating range with 45% ethylene glycol
Operating range with 45% ethylene glycol
This option allows production of brine down to 0°C (option
5B) / -15°C (option 6B). The unit is equipped with suction
pipe insulation (option 6B only) and a fan frequency converter.
55
45
Outside
temperature,
Outsideair
air temperature,
°C °C
Note: With options 5B & 6B the units are equipped with
traditional coils (Cu/Al).
The operating range is a function of the suction pressure,
which in turn is a function of:
-- The brine type
-- The brine concentration
-- The flow rate
-- The brine temperature
-- The condensing pressure (ambient temperature).
35
25
15
5
-5
-15
-25
-20
-15
-10
-5
0
5
10
Evaporator leaving water temperature, °C
Evaporator leaving water temperature, °C
Option 5B
Option 5B
Option
Option 6B6B
HEATING
Partial heat reclaim using desuperheaters (option 49)
This option permits the production of free hot water using heat
reclaim by desuperheating the compressor discharge gases.
The option is available for the whole RQS range, that are
equipped with traditional Cu/Al coils.
A plate heat exchanger is installed in series with the air
condenser coils on the compressor discharge line of each
circuit.
Physical data, 30RQS units with partial heat reclaim using desuperheaters (option 49)
30RQS partial heat reclaim mode
Operating weight units with RTPF coils*
Standard unit without hydronic module
Standard unit with hydronic module option
Single high-pressure pump
Dual high-pressure pump
Refrigerant charge, units with RTPF coils
Circuit A
Circuit B
Condensers
Desuperheaters on circuits A and B
Water volume, circuit A
Water volume, circuit B
Max. water-side operating pressure without
hydronic module
Water connections
Connections
Outside diameter
*
039
045
050
060
070
078
080
090
100
120
140
160
kg
515
522
548
561
562
569
762
909
917
973
1088
1106
kg
kg
599
625
792
818
941
986
949
994
1009
1057
1127
1164
1145
1155
16.5
-
21.5
-
27.5
-
28.5
-
33.0
-
19.0
19.0
18.5
18.5
l
l
kPa
544
552
578
591
591
570
578
603
617
617
R-410A
12.5
13.5
16.5
17.5
18.0
Grooved copper tubes. aluminium fins
Plate heat exchangers
0.549
0.549 0.549 0.732 0.732
1000
1000
1000
1000
1000
0.732
1000
0.732
1000
0.976
1000
0.976
1000
0.976
1000
0.732
0.732
1000
0.732
0.732
1000
in
mm
Cylindrical, male gas thread
1
1
1
1
42
42
42
42
1
42
1
42
1
42
1
42
1
42
1
42
1
34
kg
kg
1
42
Weights shown are a guideline only.
Operating limits
Desuperheater
Entering water temperature at start-up
Leaving water temperature during operation
°C
°C
Air condenser
Outside air temperature
°C
Minimum
Maximum
25*
30
60
65
Minimum
Maximum
-10
46
* The entering water temperature at start-up must not be lower than 25°C. For installations with a lower temperature a three-way valve is necessary.
470
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7