36
Display
Type of alarm
Reset
A1/A2
Antifreeze alarm
Manual
AHt
High temperature at start up (If, P20= is activated)
Automatic
ALt
Low temperature at start up (If, P20= is activated)
Automatic
d1-2
Defrost in operation
-
dF1-2
Defrost failure
Automatic
E1
Probe B
Automatic
E2
Probe B2
Automatic
E3
Probe B3
Automatic
E6
Probe B6
Automatic
E7
Probe B7
Automatic
ELS
Low supply voltage
Automatic
EHS
High supply voltage
Automatic
EPr
Eprom error. Unit in operation
Automatic
EPb
Eprom error. At start up
Automatic
FL
Flow switch
Manual
Hc1/Hc2
Compressor maintenance alarm (If C4 is activated)
Automatic
HP1/HP2
High pressure or discharge protection
Manual
LP1/LP2
Low pressure
Manual
tC1/tC2
Fan or compressor module thermal protection
Manual
TP
General system protection
Manual
Table of alarms
Alarm reset
Pressing the UP and DOWN keys for over 5 seconds will
cancel alarms present in the memory. The alarm message
will also disappear from the display and the alarm relay will
be deactivated.
Forces defrost (heat pumps)
Pressing the SEL and UP keys simultaneously for over 5
seconds activates the forced defrost cycle of the unit.
Clearing hour counters
When displaying compressor or heat pump operating hours
(parameters c0, c and c5), the counter can be cleared
by pressing the UP and DOWN keys simultaneously.
Pump operation
Four operating modes of the water pump can be selected in
accordance with the value give to the H5 parameter. H5=0
(pump not enabled), H5= (pump always on), H5=2 (pump on
controlled by the regulator or in parallel with the compressor),
H5=3 (pump goes off and on at regular intervals, independent
of compressor operation [parameters c7 and c8]).
Probe calibration
If necessary, the probes can be calibrated by using the /3, /4,
/5, /6, /9 and /20 parameters. See Probe set parameters.
Remote ON/OFF
A remote ON/OFF intake can be connected between ter-
minals ID5 and B on the connecting strip. To activate this
intake, give value to parameter H07 (H07 = ). When this
intake is open, the unit remains in OFF mode. When closed,
the unit remains in ON mode. This option does not disable
the ON/OFF function of the keyboard.
Remote COOL/HEAT
A remote COOL/HEAT intake can be connected between
terminals ID6 and B on the connecting strip. To activate this
intake, give value to parameter H06 (H06 = ). When this
intake is open, the unit remains in HEAT mode. When closed,
the unit remains in COOL mode. This option does not disable
the HEAT/COOL function of the keyboard.
Description of YLCC and YLCC-H 122 and 152
control system
This is a multipurpose controller especially programmed
for use with water chillers and air-water heat pump units
equipped with two tandem compressors, four power stages
and two cooling circuits.
Main functions
- Controls water temperature (at intake or outlet. See param-
eter r6).
Содержание YLCC-102
Страница 16: ...16 YLCC YLCC H 152 Hydraulic circuit flow pressure characteristics of YLCC and YLCC H...
Страница 25: ...25 General diagram...
Страница 30: ...30 Time between off cycles of two compressors Compressor pump off delay Compressor pump start delay...
Страница 38: ...38 General diagram...
Страница 43: ...43 Time between off cycles of two compressors Compressor pump off delay Compressor pump start delay...
Страница 56: ...56 General dimensions mm YLCC and YLCC H 42 YLCC and YLCC H 62...
Страница 57: ...57 General dimensions mm YLCC and YLCC H 82 and 102 YLCC and YLCC H 122 and 152...
Страница 58: ...58 General dimensions mm YLCC and YLCC H 42V YLCC and YLCC H 62V...
Страница 59: ...59 General dimensions mm YLCC and YLCC H 82V YLCC and YLCC H 102V...
Страница 60: ...60 General dimensions mm YLCC and YLCC H 122 and 152V...
Страница 61: ...61 Wiring diagram YLCC 42 and 62 400 3 50 1 of 2...
Страница 62: ...62 Wiring diagram YLCC 42 and 62 400 3 50 2 of 2...
Страница 63: ...63 Wiring diagram YLCC 82 400 3 50 1 of 2...
Страница 64: ...64 Wiring diagram YLCC 82 400 3 50 2 of 2...
Страница 65: ...65 Wiring diagram YLCC 102 400 3 50 1 of 2...
Страница 66: ...66 Wiring diagram YLCC 102 400 3 50 2 of 2...
Страница 67: ...67 Wiring diagram YLCC 122 400 3 50 1 of 2...
Страница 68: ...68 Wiring diagram YLCC 122 400 3 50 2 of 2...
Страница 69: ...69 Wiring diagram YLCC 152 400 3 50 1 of 2...
Страница 70: ...70 Wiring diagram YLCC 152 400 3 50 2 of 2...
Страница 71: ...71 Wiring diagram YLCC H 42 and 62 400 3 50 1 of 2...
Страница 72: ...72 Wiring diagram YLCC H 42 and 62 400 3 50 2 of 2...
Страница 73: ...73 Wiring diagram YLCC H 82 400 3 50 1 of 2...
Страница 74: ...74 Wiring diagram YLCC H 82 400 3 50 2 of 2...
Страница 75: ...75 Wiring diagram YLCC H 102 400 3 50 1 of 2...
Страница 76: ...76 Wiring diagram YLCC H 102 400 3 50 2 of 2...
Страница 77: ...77 Wiring diagram YLCC H 122 400 3 50 1 of 2...
Страница 78: ...78 Wiring diagram YLCC H 122 400 3 50 2 of 2...
Страница 79: ...79 Wiring diagram YLCC H 152 400 3 50 1 of 2...
Страница 80: ...80 Wiring diagram YLCC H 152 400 3 50 2 of 2...
Страница 81: ...81 Tables of parameters symbols and alarms...
Страница 84: ...84 www johnsoncontrols com...