York 152, YLCC 42/62/82/102/112, YLCC-h, 122 manual Hydraulic connections diagram

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Hydraulic connections

The hydraulic connections of the water intake and outlet of the chiller should be carried out respecting the intake and outlet directions indicated at the front of the unit.

An iron (not galvanised) or copper tubing can be use, with dimensions no lower than those indicated, and keeping in mind the pressure drops of the indoor exchanger and of the installation.

Pump dimensioning should be carried out considering a nomi- nal flow that allows the ∆t of the project within the limits of the unit: min. 3° C and max. 7° C.The head pressure of the pump chosen must cover the pressure drops of the installation plus the pressure drops of the chiller.

It is convenient that the tubing connection be carried out by means of anti-vibratory couplings.

In all cases, a flow switch must be installed so as to avoid the possibility of operation without water circulation, as well as a water filter (both are obligatory for warrantee application).

In the water feedback tubing, an expansion vessel adequate to the total volume of the water in the installation should also

be installed in the unit.

Chiller water volume is as follows:

Size	Litres

42	25

62	28

82	38.2

102	38.2

122	78.5

152	73.5

During the winter season, with outdoor temperatures below 0° C, precautions should be taken to avoid the water from freezing in the tubing networks and inside the inner chiller exchanger.

The following solutions are usually applied:

a)Drain the circuit.

b)Fill the circuit with an antifreeze mixture (glycol).

c)Keep the circulator in constant operation.

Note: See hydraulic connections diagram.

Hydraulic connections diagram
YLCC
YLCC-H
				AUTOMATIC FILLING
				ASSEMBLY
FLEXIBLE GASKET		CIRCULATING	WATER GAUGE	THERMOMETER
		CIRCULATING
		PUMP
	FILTER	PUMP
	FILTER		EXPANSION
			EXPANSION
			VESSEL
			DRAIN
WATER GAUGE				FLOW SWITCH
				PURGER
			ISOLATOR	SAFETY
			VALVE	SAFETY
		BUFFER TANK		VALVE
FLEXIBLE GASKET		BUFFER TANK
FLEXIBLE GASKET		(IF NECESSARY)
				23

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Contents Technical information Page Index Technical specificationsPage Nomenclature General characteristicsMechanical specifications Controls AccessoriesRemote terminal Remote control accessoryFlow switch optional accessory Anti-vibratory supportsCooling only Physical data and electrical characteristicsYLCC-H Heat pump unitsNominal flows, cool only Limits of useLimits of use,YLCC cooling only unit Limits of use, YLCC-H heat pump unitCooling 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 factorsTransportation General informationInspection Environmental protectionLocating and securing the unit Location dimensionsClearances DrainageHydraulic connections Hydraulic connections diagramApplication to YLCC/YLCC-H units Flow switchHydro kits GH Circulating pumpYLCC/YLCC-H 122 WiringRemote control connection optional YLCC/YLCC-H 42, 62, 82 Standard components Ylcc and YLCC-H control systemNTC Probe Interconnecting diagramIdentification of system intakes and outlets Remote control unitRS485 serial board Programmable key FigCopying the Eeprom memory on the key Serial board RS485 FigUnit control Access to Direct parametersAccess to User parameters Unit addressingAdjusting display contrast Access to Factory parametersAlarm reset Installation of default parametersOperation of heating cycle Operation of set pointsCompressors Operation of cooling cyclePump operation Defrost cycleHeating cycle compressor on Cooling cycle compressor onID4 Idcom Alarms and messagesRemote ON/OFF Buzzer configurationYellow and green LEDs on base plate Probe calibrationCooling cycle YLCC-H Summer cycle diagram forYLCC-HWinter cycle diagram forYLCC-H Heating 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