York YCAS0130 manual Technical Data, Record programmed values in the chart below

Technical Data

16.Assure that the Flow Switch is properly in- stalled, wired correctly, and working.

17.Assure bolts through compressor feet to bottom frame rails are removed.

PANEL CHECKS

(Power ON – Both System Switches “OFF”)

1.Apply 3-phase power and verify its value (See Fig. 9 and 10 pages 36 and 37).

2.Apply 115VAC and verify its value on the ter- minal block in the lower left of the Power Panel. Make the measurement between terminals 5 and 2 (See Fig. 14, page 41). The voltage should be 115VAC +/- 10%.

3.Assure the heaters on each compressor are on. Allow the compressor heaters to remain on a minimum of 24 hours before start-up. This is important to assure that no refrigerant is in the compressor oil at start-up!

4.Program the dip switches on the microprocessor board for the desired operating requirements. See Fig. 49, Page 147. OPEN = Left side of switch pushed down. CLOSED = Right side of switch pushed down.

SWITCH	SWITCH "OPEN"	SWITCH "CLOSED"
	SETTING	SETTING
1	Water Cooling	Glycol Cooling
2	Standard Ambient	Low Ambient Control
	Control
3	Refrigerant R-407C	Refrigerant R-22
4	Do Not Use	YCAS
		Motor Current
5	Do Not Use	Averaging (Start-Up)
		Disabled
6	Heat Recovery	Do Not Use
	Disabled
7	Expansion Valve	Expansion Valve
	Thermostatic	Electronic*
8	Standard Options	Do Not Use
	Enabled

*Expansion valve electronic should always be selected when an EEV is installed.

Verify the selections by pressing the OPTIONS Key on the control panel. Check them off in the chart above.

Damage to the chiller could result if switches are improperly pro- grammed.

FORM 201.19-NM1 (204)

5.Program the required operating values into the micro for cut-outs, safeties, etc. and record them in the chart below. See Page 166 for details.

Record programmed values in the chart below.

PROGRAMMED VALUES

Display Language = _________________________

Discharge Press Cutout = ___________PSIG (kPa)

Discharge Press Unload = ___________PSIG (kPa)

Suction Press Cutout = _____________PSIG (kPa)

High Amb Cutout = ___________________ °F (°C)

Low Amb Cutout = ____________________ °F (°C)

Leaving Chilled Liquid Temp Cutout = _____ °F (°C)

High Motor Current Unload = ____________ % FLA

Anti-Recycle Time = ____________________Secs

Local / Remote Mode = ______________________

Display Units = _________________________

Lead / Lag Control = ________________________

Power Failure Restart = _____________________

Suction Superheat Setpoint = __________ °F (°C)

6.Program the Chilled Liquid Setpoint/Range and record:

Setpoint = __________________ °F (°C) Range = +/- ________________ °F (°C)

Keep in mind that the setpoint temperature dis- played by the micro should equal the desired leaving water temperature.

7.Assure that the CLK jumper J18 on the Micro- processor Board is in the ON position (Top 2 pins).

8.Set the Time and Date.

9.Program the Daily Schedule start and stop times.

10.Check the Factory Service Mode programming values, (See Section 8.9) assure they are correct, and record the values below:

Refrigerant Type = __________________________

R407C Chiller Type = ________________________

Unit Type = _______________________________

118 YORK INTERNATIONAL