Carrier HFC-134A installation instructions Cooler/Discharge Pipe Assembly Removal

Separate Machine Components — The design of the 23XRV allows for disassembly at the job site so that individual components may be moved through existing door- ways. Use the following procedures to separate the machine components.

Suggested locations to cut piping will minimize the width of the condenser/economizer assembly.

SEPARATE COOLER AND CONDENSER

IMPORTANT: If the cooler and condenser vessels must be separated, the heat exchangers should be kept level by placing a support plate under the tube sheets. The support plate will also help to keep the vessels level and aligned when the vessels are bolted back together.

NOTE: For steps 1 through 13 refer to Fig. 12. The cooler has been removed from the picture to show the pipes and lines that must be cut.

Check that the holding charge has been removed from the chiller.

1.Place a support plate under each tube sheet to keep each vessel level.

2.Remove cooler relief valve and relief valve vent piping.

3.Cut the motor cooling refrigerant drain line.

4.Rig the suction elbow and disconnect the compressor suction line at the cooler and compressor. Remove bolts from the vaporizer vent line flange.

5.Cut the VFD cooling drain line.

6.Cut the oil reclaim line(s).

7.Cut the hot gas bypass line between the HGBP (hot gas bypass) solenoid valve and the cooler feed line.

8.Unbolt the cooler liquid feed line near the economizer or condenser float chamber at the flanged connection. Temporarily secure the in-line economizer orifice plate (economized chillers only) to the economizer flange (see Fig. 12).

	17	19
	18			1
	16
				2
	15				3
	14				4
					5
	5
					6
					5
	13	12
		11		10	7
				9
	a23-1560
				8
1	— Suction Elbow (Unbolt)		11	— VFD Cooling Drain Line
2	— Vaporizer Vent Line (Unbolt)		12	— Oil Reclaim Line (Cut)
3	— Motor Cooling Line (Unbolt)		13	— Vaporizer Hot Gas Return Line (Cut)
4	— Motor Cooling Drain Line (Cut)		14	— Discharge Isolation Valve (Optional)
5	— Tubesheet Mounting Bracket		15	— Condenser Relief Valves (Unscrew)
6	— Bearing Oil Drain Line		16	— Discharge Temperature Sensor
7	— Support Plate		17	— Discharge Pipe Assembly Relief Valve (Unscrew)
8	— In-Line Economizer Orifice Plate		18	— Discharge Pressure Sensor
9	— Cooler Liquid Feed LIne (Unbolt)		19	— Discharge Pressure Switch

10— Hot Gas Bypass Line (Cut)

Fig. 12 — Cooler/Discharge Pipe Assembly Removal

13