York YLCC-h, YLCC 42/62/82/102/112, 122, 152 manual Defrost cycle, Pump operation

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Defrost cycle

Start defrost

End defrost

Timer reset

 

Temperature end

 

defrost (d4)

 

Temperature start

 

defrost (d3)

Minimum time

 

start defrost (d5)

Duration defrost

Parameter

Description

Unit

Factory value

 

 

YLCC-H

YLCC

 

 

 

 

 

 

 

 

d1 (USER)

Activation defrost (0 = no; 1 = yes)

 

1

1

 

 

 

 

 

d2 (USER)

Defrost by time/temp. (0 = time; 1 = temp.)

 

1

1

 

 

 

 

 

d3 (USER)

Temperature start defrost

°C

-1

-1

 

 

 

 

 

d4 (USER)

Temperature end defrost

°C

5

5

 

 

 

 

 

d5 (USER)

Minimum time for defrost start

sec.

60

60

 

 

 

 

 

d6 (USER)

Minimum duration defrost

sec.

0

0

 

 

 

 

 

d7 (USER)

Maximum duration defrost

min.

10

10

 

 

 

 

 

d8 (USER)

Time between two defrost cycles

min.

30

30

 

 

 

 

 

d9 (USER)

Delay between defrost of both circuits

min.

10

10

 

 

 

 

 

db (USER)

Backup heater during defrost (0 = no; 1 = yes)

 

0

0

 

 

 

 

 

dc (USER)

For compressor before defrost (between 1 and 3) (a)

min.

0

0

 

 

 

 

 

dd (USER)

For compressor after defrost (between 1 and 3) (b)

min.

0

0

 

 

 

 

 

(a)When defrost conditions are reached, and before starting the cycle, the compressor turns off during the dc interval (can be set to between 1 and 3 minutes). Once the com- pressor is off, the 4-way valve inverts its position during the dc/2 interval to allow pressure balancing. During this process, the controller does not consider compressor pro- grammed timings and, therefore, the compressor goes on and off intermediately.

If dc = 0, this procedure is deactivated.

(b)When the defrost cycle is over, the compressor turns off during the dd interval (can be set to between 1 and 3 minutes). Once the compressor is off, the 4-way valve inverts its position during the dd/2 interval to allow pres- sure balancing and elimination of drops of water in the

outdoor exchanger.During this process, the controller does not consider compressor programmed timings and, there- fore, the compressor goes on and off intermediately.

If dd = 0, this procedure is deactivated.

Pump operation

Three operating modes of the water pump can be selected in accordance with the value give to the H5 parameter.

Parameter H5 Pump operating mode

0Pump absent

(1)In permanent operation

2In operation under call from the controller (demand for cool or heat)

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Contents Technical information Page Index Technical specificationsPage General characteristics Mechanical specificationsNomenclature Controls AccessoriesFlow switch optional accessory Remote control accessoryAnti-vibratory supports Remote terminalCooling only Physical data and electrical characteristicsYLCC-H Heat pump unitsLimits of use,YLCC cooling only unit Limits of useLimits of use, YLCC-H heat pump unit Nominal flows, cool onlyCooling capacities YLCC-102 YLCC-H-42 102 LWT C Heating capacitiesYLCC-H-102 YLCC/YLCC-H 82 YLCC/YLCC-H 42 YLCC/YLCC-HYLCC/YLCC-H 82/82V Fan performancesFactors with water and glycol Correcting factorsInspection General informationEnvironmental protection TransportationClearances Location dimensionsDrainage Locating and securing the unitHydraulic connections Hydraulic connections diagramHydro kits GH Flow switchCirculating pump Application to YLCC/YLCC-H unitsWiring Remote control connection optional YLCC/YLCC-H 42, 62, 82YLCC/YLCC-H 122 Standard components Ylcc and YLCC-H control systemNTC Probe Interconnecting diagramIdentification of system intakes and outlets Remote control unitCopying the Eeprom memory on the key Programmable key FigSerial board RS485 Fig RS485 serial boardAccess to User parameters Access to Direct parametersUnit addressing Unit controlAlarm reset Access to Factory parametersInstallation of default parameters Adjusting display contrastCompressors Operation of set pointsOperation of cooling cycle Operation of heating cyclePump operation Defrost cycleHeating cycle compressor on Cooling cycle compressor onID4 Idcom Alarms and messagesYellow and green LEDs on base plate Buzzer configurationProbe calibration Remote ON/OFFWinter cycle diagram forYLCC-H Summer cycle diagram forYLCC-HHeating cycle YLCC-H Cooling cycle YLCC-HYlcc andYLCC-H General dimensions mmYlcc andYLCC-H 82 Ylcc andYLCC-H Minimum Electrical Connection Clearance Ylcc andYLCC-H 122V 400V, 3 ~, 50 Hz, N Wiring diagram, YLCC-H 42 and 62, 400.3.50 1Wiring diagram, YLCC-H 42 and 62, 400.3.50 2 Reg. a 400V, 3 ~, 50 Hz, N Wiring diagram, YLCC-H 82, 400.3.50 1Wiring diagram, YLCC-H 82, 400.3.50 2 Wiring diagram, YLCC-H 102, 400.3.50 1 Wiring diagram, YLCC-H 102, 400.3.50 2 Wiring diagram, YLCC-H 122, 400.3.50 1 Wiring Wiring diagram, YLCC-H 152, 400.3.50 1 Diagram, YLCC-H Wiring diagram, YLCC- 42 and 62, 400.3.50 1 Diagram, Ylcc Wiring diagram, YLCC- 82, 400.3.50 1 Diagram,YLCC Wiring diagram, YLCC- 102, 400.3.50 1 Diagram Wiring diagram, YLCC- 122, 400.3.50 1 Diagram Wiring diagram, YLCC- 152, 400.3.50 1 152 Page Ref. Y-R70102
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