Carrier 19XL Specifications download pdf (Page 28)

Install Vent Piping to Relief Devices

The 19XL chiller is factory equipped with relief devices on the cooler and condenser shells.

Refer to Figure 21 and Table 6 for size and location of relief devices. Vent relief devices to the

outdoors in accordance with ANSI/ASHRAE 15 (latest edition) Safety Code for Mechanical

Refrigeration and all other applicable codes.

If relief devices are manifolded, the cross-sectional area of the relief pipe must at least

equal the sum of the areas required for individual relief pipes.

Provide a pipe plug near outlet side of each relief device for leak testing. Provide pipe

fittings that allow vent piping to be disconnected periodically for inspection of valve

mechanism.

Piping to relief devices must not apply stress to the device. Adequately support piping. A

Figure 20 — Pumpout Unit

Refrigerant discharged into confined spaces can displace oxygen and cause

asphyxiation.

DANGER

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Carrier 19XL Specifications Page 28