TM_i-BX(-N)_NC05_00_06_20_EN
MEHITS S.p.A.
●
TECHNICAL MANUAL
Version NC05 - Translation of the Original Instructions
24
Num Par
Description
Default
Unit
Min.
Max.
P133U
Set voltage to stop external exchanger
0
V
0
10
P133V
Compr. Max Speed in certain condition (rps)
95.0
rps
P1367
P138H
P133W
Customer specification max rotation speed (external temperature control)
95.0
rps
P1367
P138H
P133X
High external temperature threshold to limit compressor speed
36.0
°C
-999.9
999.9
P133Y
Low external temperature threshold to limit compressor speed
0.0
°C
-999.9
999.9
P133Z
Set for stop compressors for external low temperature when backup boiler function is active
-20.0
°C
-99.9
99.9
P1341
Reverse logic 4-way valve reverse cicle heatpump (0: NC; 1: NO)
1
-
0
1
P1342
Minimum limit high pressure
0.0
Bar
-1.0
99.9
P1343
Maximum limit high pressure
45.0
Bar
-1.0
99.9
P1344
Minimum limit low pressure
0.0
Bar
-1.0
99.9
P1345
Maximum limit low pressure
17.3
Bar
-1.0
99.9
P1348
Enable inverter compressor regulation (0:NO; 1:YES)
1
-
0
1
P134A
Enable oil return management (0:NO; 1:YES)
1
-
0
1
P134B
Minimun request threshold for oil management activation
100.0
%
0
100.0
P134C
Min compressor speed in [rps] for oil management activation
60.0
rps
0
P138H
P134D
Wait time in [min] while compressore can run at minimum speed before activate oil management
20
min
0
999
P134E
Compressor speed in [rps] to which the compressor is forced wheb oil management's active
90.0
rps
0
999.9
P134F
Time in [min] during which the compressor is forced at a specific speed
2
min
1
999
P134G
4-way valve open-close delay when compressor is at minimum speed
30
s
0
999
P134H
Compressor release from minimum speed after 4-way valve opening
30
s
0
999
P134I
Compressor release from minimum speed after 4-way valve closing
30
s
0
999
P134S
Max. increase speed rate (going to target speed in oil recovery) [rps/s]
1.0
rps/s
0
9.9
P134T
Enable force compressor OFF by on time under 134U threshold (0:NO; 1:YES)
1
-
0
1
P134U
Time threshold to turn compressor OFF after running below 134C
120
min
0
999
P134V
Valve opening at start-up (in Defrost P2)
100
%
0
100
P1350
Inverter type (0: CAREL inverter mng; 1: APY inverter mng; 2: Power+)
2
-
0
2
P1351
Minimum On time compressor
180
s
0
900
P1352
Minimum time Off compressor
240
s
0
900
P1353
Minimum time between 2 starts of the same compressor
360
s
0
900
P1354
Minimum power required from regulator to start the compressor
90
%
0
99
P1355
Frequency at 0Volt
0
Hz
0
P1356
P1356
Frequency at 10Volt
120
Hz
P1355
9999
P1357
Max time out of enn. condition
120
s
0
999
P1358
Max. permitted Delta P to start up
10.0
Bar
0
99.9
P1359
Time to equalize pressure
90
s
0
99
P135A
Maximum block time for high temperature plant alarm
0
min
0
530
P1360
Preopenig value of EVD to try equalization of pressure
50
%
0
100
P1361
Time of equalization for EEV
30
0
999
P1362
Steps valve open eq.
480
0
999
P1363
Min variation of DP for startup failure
0.5
Bar
0
99.9
P1364
Transituion delay for control of DP
60
s
0
999
P1365
Minimum Delta between discharge and suction pressure (lubrication)
4.0
Bar
20.0
99.9
P1366
Alarm delay for DP not reached
180
0
32767
P1367
Compr. Absolute Min speed (rps)
30.0
rps
0
P1368
P1368
Customer specification max rotation speed (lower than Max_Speed value)
95.0
rps
P1367
P138H
P1369
Max decreasing speed inverter
1.0
rps/s
0
9.9
P136B
Valve position after defrost end
30.0
%
0
100.0
P136K
prepositioning wait delay valve A
30
Y
0
18000
P136L
Y3 output mode (0: 0/10V; 1: Cut-phase)
0
-
0
1
P136M
Duration of the triac impulse. If the value is 0 the analogue output works as a PWM in synch with
the mains frequency
2.0
ms
0
10.0
P136N
Maximum phase difference
92.0
%
0
100.0
P136O
Minimum phase difference
7.0
%
0
100.0
