Blue Box - 39
4.9.8 Connection of Sigma 2002 LC/HP units to a remote air cooled condenser.
In motoevaporating units LC/HP during the winter operating mode (heat pump), the finned coil of the remote
condenser operates as an evaporator; the refrigerant pipes connecting the remote condenser/evaporator will
therefore need to have an increased diameter.
If the remote condenser is supplied by Blue Box, the installer make the connection between the defrost tempera-
ture sensor terminals (inside the electric box) and the thermostat terminals inside the electric control box of the
motoevaporating unit (see the electrical diagram).
If the remote condenser is not supplied by Blue Box, the defrost is controlled only by the evaporating pressure (for
more information see the paragraph “Defrost”) and there is not a temperature sensor on the remote condenser.
TABLE 2 - PIPE DIAMETER FOR VERSIONS LC
MODEL
SIGMA 2002/LC
Delivery
Liquid
Delivery
Liquid
Delivery
Liquid
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
3.2
22
16
22
16
22
16
4.2
22
18
22
18
22
18
5.2
22
18
22
18
28
18
6.2
28
22
28
22
28
22
7.2
28
22
28
22
28
22
8.2
28
22
28
22
28
22
9.2
35
28
35
28
35
28
10.2
35
28
35
28
35
28
12.2
35
28
35
28
35
28
13.2
35
28
35
28
35
28
14.4
28
22
28
22
28
22
16.4
28
22
28
22
28
22
18.4
35
28
35
28
35
28
20.4
35
28
35
28
35
28
24.4
35
28
35
28
35
28
26.4
35
28
35
28
35
28
30
Diameter connection pipes between unit
Distance between unit and remote air cooled condenser [m]
and remote air coole condenser
10
20
Summary of Contents for SIGMA 2002
Page 2: ......
Page 99: ...Blue Box 93 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 3 2 13 2...
Page 100: ...Blue Box 94 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 14 4 26 4...
Page 101: ...Blue Box 95 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 3 2 8 2 14 4 16 4...
Page 102: ...Blue Box 96 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 9 2 13 2 18 4 26 4...
Page 103: ...Blue Box 97 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE SIGMA 2002 LE DC MODELS 3 2 26 4...
Page 104: ...Blue Box 98 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE HP MODELS 3 2 26 4...
Page 105: ...Blue Box 99 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 3 2 13 2...
Page 106: ...Blue Box 100 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 14 4 26 4...
Page 107: ...Blue Box 101 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 3 2 13 2...
Page 108: ...Blue Box 102 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 14 4 26 4...
Page 109: ...Blue Box 103 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 3 2 13 2...
Page 110: ...Blue Box 104 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 14 4 26 4...
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