Figure 6. Photograph of wye-delta starter
RTHA Units with Wye-Delta Starters
RLC-SVN005B-EN 9
Installation of Benshaw Starter
Once all of the wye-delta starter components in Figure 5,
p. 8 are removed, refer to Figure 7, p. 9 for the
approximate locations of the new Redistart components.
Note: 2K300 and 2K400 can be placed in either location
noted below.
Figure 7. Location of Benshaw starter and additional components (highlighted) — RTHA
2T4
T1
T2
T3
T4
T5
T6
2F1 2F2
2TB2
2TB3
2K5
2T5
2T6
2T7
2T1
2T2
2T3
Benshaw
Redistart
Solid State
Starter
Fan
CT1
CT2
CT3
Shunt
Trip
(Breaker)
2K300
2K400
2K300
2K400
The Benshaw Redistart SSS is supplied with current
transformers. The current transformers wired to the chiller
need to remain installed as shipped from the factory. The
current transformers supplied with the solid state starter
need to be installed as close to the original current
transformers as possible for proper operation.
Note: Be
nshaw CTs are polarity sensitive. For specific
details on mounting of the Benshaw Solid State
Starter, see “Benshaw Solid State Starter Hardware
Manual, pages 20-32. The manual ships with the
Benshaw starter.
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