Product Manual A

4. Operation 11-2017

Function Factory Setting

Exercise Repeat Interval Every 7 Days

4.2 Manual Operation

The transfer switch has operator handles for manually transferring the load. Manual operation must be

performed by qualified personnel under No-Load Conditions only.

4.2.1 Manual Operation of Transfer Switches

WARNING

Manual operation of the transfer switch under load presents a shock hazard that can cause

severe personal injury or death. Do not attempt to operate switch manually when it is under load.

Follow the “Safety Related Work Practices" listed in NFPA 70E.

WARNING

AC power within the cabinet and the rear side of the cabinet door presents shock hazards that

can cause severe personal injury or death. Use extreme caution to avoid touching electrical

contacts with body, tools, jewelry, hair, clothes, etc.

1. Verify that the generator switch is in the OFF position.

2. Verify that the transfer switch is not under load.

3. For type 3R and 12 cabinets, open the transfer switch outer door.

4. Move the circuit breaker handle to the OFF position.

NOTICE

The circuit breakers include a trip button which can be pressed instead of moving the

handle to the OFF position.

5. Remove power to the control by disconnecting the J1 connector.

6. Transfer from the utility (normal) to the generator set (emergency):

a. Pull the upper manual operator handle down.

b. Push the lower manual operator handle down.

7. Retransfer from the generator set (emergency) to the utility (normal):

a. Pull the lower manual operator handle up.

b. Push the upper manual operator handle up.

NOTICE

Remember that the transfer switch transfers the load to the active power source. If both

power sources are available, it transfers the load to the utility.