Installation Of Benshaw Starter - Trane RTHA Installation, Operation And Maintenance Manual

Figure 6. Photograph of wye-delta starter

Installation of Benshaw Starter

Once all of the wye-delta starter components in
p. 8 are removed, refer to
approximate locations of the new Redistart components.
Figure 7. Location of Benshaw starter and additional components (highlighted) — RTHA
2T4
2K300
2K400
Fan
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.
RLC-SVN005B-EN
Figure 5,
Figure 7, p. 9 for the
Benshaw
Redistart
Solid State
Starter
RTHA Units with Wye-Delta Starters
Note: 2K300 and 2K400 can be placed in either location
noted below.
2F1 2F2
2K300
2K5
2T5
2K400
2T6
2TB3
2T7
T6
T5
T4
T3
T2
T1
Note: Benshaw 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.
2TB2
Shunt
Trip
(Breaker)
2T2
2T1
2T3
CT2
CT1
CT3
9