Riello 20120391, Instructions For The Installer And For The Technical Support Service

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ACCESSORIES
INSTALLATION
4.2.4 Partial heat recovery
This option allows producing hot water through the heat recovery by desuperheating the gas leaving the compressor. This option
is available for the whole range.
The water cooled heat exchanger is installed on the charge line of the compressor of each circuit.
The control is configured in the factory for the partial heat Recovery option (see the section on Control configuration with the
desuperheater option).
The installer must protect the water cooled exchanger from the frost.
PHYSICAL PROPERTIES OF THE UNIT WITH PARTIAL HEAT RECOVERY BY MEANS OF DESUPERHEATERS
Description
NXC
044 048 056 064 072 084 096 104 122 142 164
Standard unit 459 467 496 521 505 541 841 853 878 939 1002 kg
Unit + High pressure single pump
option
500 509 538 563 547 583 908 919 949 1013 1076 kg
Unit + High pressure double pump
option
526 535 564 589 572 609 953 964 997 1050 1113 kg
Unit + High pressure single pump
+ Backup Tank Module option
896 905 934 959 943 979 1341 1352 1382 1446 1509 kg
Unit + High pressure double pump +
Backup Tank module option
922 931 960 985 968 1005 1386 1397 1430 1483 1546 kg
Refrigerant with copper coils / alumin-
ium fins
(1)
R410A 3.8 4.4 5 5 5.2 6.2 6.5 8 8.7 8.9 3.4
Circuit A 8 9 12.5 15 12.5 15 19 20 23 12.5 16 kg
Circuit B - - - - - - - - - 12.5 16 kg
Air heat exchanger Grooved copper pipe and aluminium fins -
Desuperheaters on circuit A and B Plate heat exchanger -
Water volume 0.549 0.549 0.549 0.549 0.732 0.732 0.976 0.976 0.976 0.732 0.732 L
Water volume - - - - - - - - - 0.732 0.732 L
Max operating pressure on water side
without hydronic module
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 kPa
Water connections Male cylinder threaded gas connection -
Connectors 1 1 1 1 1 1 1 1 1 1 1
inch-
es
External diameter 42 42 42 42 42 42 42 42 42 42 42 mm
(1) Indicative weights only.
Description
NXH
044 048 056 064 072 080 084 096 104 122 142 164
Standard unit 506 515 552 558 569 574 787 907 916 990 1068 1072 kg
Unit + High pressure single pump
option
548 557 594 600 611 616 854 974 983 1061 1142 1146 kg
Unit + High pressure double pump
option
574 583 620 626 637 642 899 1019 1028 1109 1179 1183 kg
Unit + high pressure single pump +
Backup Tank module option
944 952 990 995 1006 1011 1286 1406 1415 1493 1575 1578 kg
Unit + High pressure double pump +
Backup Tank module option
970 978 1015 1021 1032 1037 1331 1451 1460 1542 1612 1615 kg
Refrigerant with copper coils / alumin-
ium fins (1)
R410A -
Circuit A 12.5 13.5 16.5 17.5 18 16.5 21.5 27.5 28.5 33 19 18.5 kg
Circuit B - - - - - - - - - - 19 18.5 kg
Air heat exchanger Grooved copper pipe and aluminium fins -
Desuperheaters on circuit A and B Plate heat exchanger -
Water volume 0.549 0.549 0.549 0.732 0.732 0.732 0.732 0.976 0.976 0.976 0.732 0.732 L
Water volume - - - - - - - - - - 0.732 0.732 L
Max operating pressure on water side
without hydronic module
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 kPa
Water connections Male cylinder threaded gas connection -
Connectors 1 1 1 1 1 1 1 1 1 1 1 1
inch-
es
External diameter 42 42 42 42 42 42 42 42 42 42 42 42 mm
(1) Indicative weights only.