NOTE: A ®eld supplied and installed low pro®le isolation is suggested to keep operation height low.
Fig. 18 Ð Typical Low Pro®le Isolation Assembly
(Field Supplied and Installed)
For adequate and
1.Check machine location prints for required grout thickness.
2.Carefully wax jacking screws for easy removal from grout.
3.Grout must extend above the base of the soleplate and there must be no voids in grout beneath the plates.
4.Allow grout to set and harden, per manufacturer's in- structions, before starting machine.
5.Back jacking screws off leveling pads after grout has hardened.
INSTALL SPRING ISOLATION Ð
Obtain speci®c details on spring mounting and machine weight distribution from job data. Also, check job data for methods for supporting and isolating pipes that are attached to the spring isolated machines.
Connect Piping
INSTALL WATER PIPING TO HEAT EXCHANGERS Ð Install piping using job data, piping drawings, and proce- dure outlined below. A typical piping installation is shown in Fig. 19.
Remove chilled and condenser water sensors before weld- ing connecting piping to water nozzles. Refer to Fig. 2 and 3. Replace sensors after welding is complete.
1.If the machine is a
2.Provide openings in water piping for required pressure gages and thermometers. Openings should be at least 6 to 10 pipe diameters from the waterbox nozzle. For thor- ough 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 ¯anges.
5.Water ¯ow direction information is shown in Fig. 20 and 21.
NOTE: Entering water is always the lower of the two nozzles. Leaving water is always the upper nozzle for cooler or condenser.
6.Water ¯ow switches must be of
Differential pressure type ¯ow switches may be con- nected at the nozzle of the waterbox.
7.Install waterbox vent and drain piping in accordance with individual job data. All connections are
8.Install waterbox drain plugs in the unused waterbox drains and vent openings.
9.Install water piping to the optional pumpout system con- denser storage tank as shown in Fig.
18