Trane RAUC-C40, RAUC-C50, RAUC-C30, RAUC-C60 EVP Chiller Applications, Freezestat Setting, 200 300

System Start-Up

EVP Chiller Applications

Start the chilled water circulating pump by closing the field provided pump disconnect switch and turn the pump control circuit switch 5S1 “On”.

Check the flow device to ensure it opens and close properly.

With water circulating through the system, check the EVP chiller pressure drop and adjust the flow (if necessary). Refer to the appropriate EVP chiller size in Figure 44 for the operating pressure drop.

Freezestat Setting

At the remote panel, set the freezestat at a minimum of 5oF above the chilled water freezing temperature.

Figure 44. Evaporator Pressure Drops

Flow (L/S)

							5											5										5						5			5			5			5			5			5		0		5
	40					.									2		.						3					.		4			.		5	.		6	.		7	.		8	.		9	.		1		1
						1											2										3						4			5			6			7			8			9
	30
	20
Water)	10
	9
	8
of
	7
(Ft
	6
Drop
	5
Pressure	4
	3
																						n				T	o	n
																					o				0
																				T				5
	2																		0
																		4
						n						n			T	o	n														T	o	n
					o						o			0																0
				T						T			3																6
			0						5
		2						2
	1	20											30				40							50					60				70		80 90100																200		300
																														Flow (GPM)

88 SS-SVX09A-EN