Carrier 19XL Specifications download pdf (Page 26)

1. Offset pipe flanges to permit removal of waterbox cover for maintenance and to provide

clearance for pipe cleaning. No flanges are necessary with marine waterbox option;

however, water piping should not cross in front of the waterbox or access will be blocked.

2. Provide openings in water piping for required pressure gages and thermometers. For

thorough mixing and temperature stabilization, wells in the leaving water pipe should

extend inside pipe at least 2 in. (50 mm).

3. Install air vents at all high points in piping to remove air and prevent water hammer.

4. Install pipe hangers where needed. Make sure no weight or stress is placed on waterbox

nozzles or flanges.

5. Water flow direction must be as specified in Figure 16.

Note: Entering water is always the lower of the 2 nozzles. Leaving water is always the upper

nozzle for cooler or condenser.

6. Water flow switches must be of vapor-tight construction and must be installed on top of pipe

in a horizontal run and at least 5 pipe diameters from any bend.

CAUTION

Remove chilled and condenser water sensors before welding connecting piping

to water nozzles. Refer to Figure 2. Replace sensors after welding is complete.

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Carrier 19XL Specifications Page 26