1.2.9 Unit configuration parameters
Unit configuration parameters
Display
Description
Level
VS
Unit
Max.
Min.
Value
H01
Unit model:
2= Water chiller
3= Air-water heat pump
F
54 (R/W)
2
H02
Number of vent circuits (do not modify this parameter)
F
12 (R/W)
0
H03
No. of evaporating units present (do not modify this
parameter)
F
13 (R/W)
0
H04
No. of compressors per circuit (do not modify this pa‐
rameter)
F
55 (R/W)
1
H05
Pump operation:
0= Absent
1= Always ON
2= ON upon controller call
3= ON upon controller and time call
F
56 (R/W)
3
0
1
H06
COOL/HEAT digital input:
0= Absent
1= Present
U
14 (R/W)
1
0
0
H07
ON/OFF digital input:
0= Absent
1= Present
U
15 (R/W)
1
0
0
H08
Network configuration (do not modify this parameter)
F
57 (R/W)
3
0
0
H09
Keyboard locked:
0= Disabled
1= Enabled
U
16 (R/W)
1
0
1
H10
Serial direction for monitoring:
0= Future use as terminal
U
58 (R/W)
200
1
1
H11
Output configuration (not selectable)
F
59 (R/W)
3
0
1
H12
4-way valve logic operation. Activated in cold cycle (do
not modify this parameter)
F
60 (R/W)
3
0
0
H21
Second pump function (do not modify this parameter)
F
62 (R/W)
4
0
0
H22
Default parameter loading disabled:
0= Disabled
1= Enabled
F
18 (R/W)
1
0
1
H23
Modbus protocol setting:
0= Disabled
1= Enabled
F
11
1
0
0
1
User manual
1.2
Operating instructions µC2 (YLCA 50, 60 and 80)
18
