Format: PDF (Printable Document)
File Language: English
File Pages: 68
File Size: 6.26 MB (Speed Download Link)
Brand: Kohler
Model: Series S340 Automatic Transfer Bypass, Isolation 150-800 Amps
Book No: tp5448
Type of Document: Operation and Installation Manual
$ 40
In a commercial or industrial building, this Kohler S340 automatic transfer switch with bypass/isolation is what quietly moves your loads between utility and generator power and lets you work on the gear without killing the whole site. This manual is what I keep handy when I’m installing one, checking wiring, or moving it into bypass so I can safely service the transfer mechanism. If, for example, the switch won’t re-transfer back to utility after the generator cools down, I’d use this book to verify operating steps, check control positions, and confirm I’m not missing an interlock or manual setting.
Applications & Use Cases
FAQ
Q: Can I keep this manual on a tablet in the field?
A: Yes, it works well digitally; you can zoom diagrams and search text while standing at the switchgear.
Q: Is it worth printing a hard copy for the electrical room?
A: Definitely; a clean printed set near the gear makes troubleshooting and lockout steps quicker and safer.
Safety Note
Always de-energize and lock out all sources before operating the bypass or isolation features described in this manual.
Introduction
Installation
unpacking .
Lifting .
Mounting
Line Connections
Auxiliary Connections
Engine-starting Connections
Voltage and Emergency Chec*
Manual Operation Test
Electrical Operation Test
B assin
Isolation
Transfer Switch Removal
Transfer Switch Reinstallation
Retum to Service .
Electrical Operation Test
TO Change Transfer Switch Position
Manual Load Transfer
General Maintenance
S uence of O ration
Normal Sowce Failure
Normal Source Restoration .
Generator Set Does Not Start men Test Switch IS Operated
Transfer Switch Does Not Retransfer The Load After Normal Returns
or After Test Switch Is Placed In “AUTO” Positm
With Generator Set Rumin Transfer Switch
Does Not Transter The
To Ernergency.
Transfer Switch Retransfers The Load, But Generator Set Continues TO Run .
Bypass Handle Cannot Be Turned
Isolation Handle Camot Be Turned to Closed Position .
Normal Source Fails While in B assed—to—NormaI Position .
Solid State Lo ic Circuit .
Time Delays
Scuce Monitors— Hz, Volts, Phase
Sequence— ACC’S 5 & 26 .
Front Panel Indicators and Controls
Operation Mode Selector Switch With Larrp
Time Delay Override Switch- Acc 8 .
Preferred—Source Selector Switches
—ACC. IO
Mamjal Operation Switches- Acc. 29
panel Larnps— Acc. 12 .
Auxiliary Relay Contacts- Acc. 14 .
Contactor—Main Shaft Auxiliary
Contacts-ACC. 15
Generator Set Exercising Timer
-Acc. 23
Battery Charger- Acc. 24
Area Protection with Override
-Acc. 26-D .
Cranking Limiter (Solid State)
-Ace 30-A, B, C
Motor Load Transfer,
Inphase Monitor or
Synch-Chec* Relay— Acc. 34 .
Load-Sheddhg Contacts- Acc. 35
Disconnectin the Inner Control Panel Assembl
To Disconnect the Plug
To Reconnect the Plug .
Main Circuit Board Volta e and Time Dela Affu
ccesso Card Ad •ustments
Undervoltage Card
Overvoltage Card
Freq.jency Cards
Time Delay Engine Cool—Off Card
Wiring Diagrams
Dimension Drawin s .
en
