12.2 - Description
12.2.1 - Hydronic module without variable speed
The hydronic module is composed of the system's main hydronic
components: factory-fitted water pump, screen filter and relief
valve.
This pump provides the fixed, nominal flow rate for the system.
Several types of water pump are available to suit all applications:
-
Single or dual low pressure pumps
-
Single or dual high pressure pumps.
The nominal flow of the system should be adjusted using a
manual control valve provided by the client.
The relief valve placed on the water inlet pipes at the pump inlet
limits the pressure to 400 kPa (4 bar).
A screen filter that can be easily removed is placed at the pump
inlet and protects the pump and the plate heat exchanger against
solid particles that are greater than 1.2 mm.
Additional options can be ordered if necessary:
-
Protection of the hydronic module in outdoor temperatures of
down to -20°C.
-
Expansion vessel.
-
Additional filter (particle size of 800 µm) for extra protection.
The use of the hydronic module on open systems
is prohibited.
12.2.2 - Hydronic module with variable speed
The composition of the hydronic module with variable speed is
similar to that of the hydronic module without variable speed.
In this case, the pump is controlled by a frequency inverter that
allows the pump's nominal flow to be adjusted based on the
chosen control mode (constant pressure or temperature
differential or fixed speed) and the installation's operating
conditions.
The use of the hydronic module on open systems
is prohibited.
12.2.3 - Partial heat recovery
This option enables free hot water to be produced through heat
recovery by desuperheating the compressor outlet gas. The
option is available across the entire range.
A water-cooled heat exchanger is installed as standard with air-
cooled exchangers on the compressor discharge line on each
circuit.
The control is configured for the Partial heat recovery option in
the factory (see the section on Control configuration with the
desuperheater option).
The installer must protect the water-cooled exchanger against
the risk of frost.
12.2.3.1 - Physical properties of units with partial heat recovery using desuperheaters
AQUACIAT
POWER
ILD ST / LD HE
602
650
800
900
902
1000
1150
1200
1400
1600
1800
2000
Partial heat recovery on the A/B circuits
Plate heat exchanger
Water volume circuits A/B
l
2/3.75 2/3.75 3.75/3.75 3.75/3.75 3.75/3.75 3.75/5.5 3.75/5.5 3.75/7.5 5.5/7.5 7.5/7.5 7.5/7.5 7.5/7.5
Maximum operating pressure, water side
kPa
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
Refrigerant
Circuit A
(1)
kg
16,0
22,2
23,7
25,5
29,2
29,2
34,6
36,8
46,2
55,2
56,7
59,2
tCO
2
e 33,3
46,3
49,4
53,2
60,9
60,9
72,2
76,9
96,5
115,3 118,3 123,6
Circuit B
(1)
kg
23,7
23,7
23,7
25,5
37,1
38,5
49,7
55,2
55,2
55,2
56,7
59,2
tCO
2
e 49,4
49,4
49,4
53,2
77,4
80,5
103,8 115,3 115,3 115,3 118,3 123,6
Water connections
Victaulic
®
Connection
Inches
2
2
2
2
2
2
2
2
2
2
2
2
External diameter
mm
60,3
60,3
60,3
60,3
60,3
60,3
60,3
60,3
60,3
60,3
60,3
60,3
AQUACIAT
POWER
ILD ST
Operating weight
(1)
Unit + Partial heat recovery option
kg
1472
1537
1681
1704
2112
2270
2390
2625
3099
3350
3362
3402
Unit with Xtra Low Noise + Partial heat recovery option
kg
1555
1620
1789
1812
2220
2396
2516
2769
3261
3530
3542
3582
Unit + Xtra Low Noise HP dual-pump hydraulic
Partial heat recovery
kg
1695
1760
1941
1963
2381
2605
2734
2974
3506
3775
3824
3864
AQUACIAT
POWER
LD HE
Operating weight
(1)
Unit + Partial heat recovery option
kg
1508
1574
1717
1740
2149
2307
2426
2662
3135
3407
3419
3468
Unit with Xtra Low Noise + Partial heat recovery option
kg
1591
1657
1825
1848
2257
2432
2552
2806
3297
3587
3599
3648
Unit + Xtra Low Noise HP dual-pump hydraulic
Partial heat recovery
kg
1731
1797
1977
1999
2417
2641
2770
3011
3543
3833
3881
3930
(1) Weights are guidelines only. Refer to the unit name plate.
12 - OPTIONS
AQUACIAT
POWER
ILD
EN-52
