TECHNICAL MANUAL
CVM 3000
C 5030 CV/04-99 GB
48
48
CI
PUMP-DOWN PRESSURE SET
-0.5
↔
5.0
Tab. 13-6
49
CI
PUMP-DOWN PRESSURE DIFFERENTIAL
0.0
↔
5.0
Tab. 13-6
WORK CONDITIONS
PARAMETER 48
PARAMETER 49
STANDARD
2.5
1
FOR WATER TEMPERATURES BELOW 0°C
1.6
1
Table 13-6 PUMP DOWN PRESSURE SET
50
CI
PRESSURE SET FOR START STAND-BY TIME
COUNTING, BEFORE STARTING OF DEFROST
CYCLE (PAR. 51)
-0.5
↔
7.0
3.6 Bar
51
CI
STAND-BY TIME TO BEGIN DEFROST CYCLE
0
↔
3600
1800 sec
52
CI
TEMPERATURE SET TO BEGIN DEFROST CYCLE
AFTER TIME COUNTING AS PER PARAMETER 51
-10
↔
100
3.0 °C
53
CI
TEMPERATURE SET FOR END OF DEFROST
PROCEDURE
0
↔
30
10.0 °C
54
CI
MAXIMUM TIME FOR END OF DEFROST CYCLE
0
↔
600
300 sec
55
CI
PRESSURE SET FOR FORCING IN CHILLER
MODE UNITS WITH RECOVERY
10.0
↔
28.0
23.5 Bar
56
CI
PRESSURE DIFFERENTIAL FOR END OF
FORCING IN CHILLER MODE UNITS WITH
RECOVERY
0
↔
10
5.0 Bar
57
CI
MINIMUM TIME OF CHILLER MODE OPERATION
AFTER FORCING, IN UNITS WITH RECOVERY
0
↔
500
120 sec
58
M
ANTIFREEZE SET LOWER LIMIT
-50
↔
20
3 °C
59
M
TYPE OF DEFROSTING IN AIR/WATER HEAT
PUMPS.
0=NORMAL
1=SIMULT.
0
60
CI
COMPRESSOR STARTUP STAND-BY TIME AFTER
DEFROSTING PROCEDURE
0
↔
500
120 sec
61
M
ANTIFREEZE SET UPPER LIMIT
-20
↔
20
10.0 °C
62
CI
MAXIMUM TIME OF OPERATION IN PUMP-
DOWN MODE
0
↔
100
30 sec
63
M
ANTIFREEZE OFFSET ON HOT WATER CIRCUIT
COMPARED TO COLD WATER ANTIFREEZE SET
-50
↔
50
0.0 °C
64
M
UNIT CONFIGURATION
0
↔
6
Tab. 13-7
PARAMETER VALUE
DESCRIPTION
0
CHILLER
1
AIR/WATER HEAT PUMP
2
HEAT PUMP WITHOUT DEFROSTING
3
CHILLER WITH TOTAL RECOVERY
4
MULTIPURPOSE UNITS
5
CHILLER WITH FREE-COOLING
6
TOTAL RECOVERY HEAT PUMP
Table 13-7 UNIT CONFIGURATION
65
M
ALARM LIST ERASING
1: ERASE ALARMS
0
66
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