Technicolor - Thomson POWER & CONTROL TS 870 - Manual (Page 45)

APPENDIX “A”
THOMSON TECHNOLOGY
©
TYPICAL AUTOMATIC TRANSFER SWITCH
COMMISSIONING PROCEDURES
Model Series TS 870
9087A - 198
th
Street, Langley, B.C. Canada V1M 3B1
•
Telephone (604) 888-0110
•
Telefax (604) 888-3370
Note: The following commissioning procedures are provided for general information only
pertaining to typical site installations and applications. Contact the equipment supplier
for further information as may be required.
DANGER!!!!
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical personnel
utilizing safe work practices and appropriate Personal Protective Equipment (PPE).
Failure to do so may cause personal injury or death
CAUTION
Commissioning procedures must be performed by qualified personnel only. Ensure the
Automatic Transfer Switch (ATS) Control Isolation Plug is disconnected prior to energizing the
supply sources. Manually place the transfer switch mechanism in the neutral position by
opening both Utility and Generator Power Switching devices prior to applying power.
Pre-Commissioning Checks Prior to Commissioning Agent On-Site (to allow
loads to be supplied prior to final commissioning)
1) Verify the system voltage of both sources (i.e. generator and utility) to be applied to the
transfer switch are of the correct nominal system value which matches the ATS drawings and
the ATS equipment label ratings. If the system voltage is correct, proceed to step 3. If system
voltage is incorrect for the rating of the ATS supplied, proceed to step 2.
CAUTION: FAILURE TO RE-CONFIGURE ATS VOLTAGE TO MATCH SYSTEM VOLTAGE
WILL RESULT IN EQUIPMENT MALFUNCTION AND DAMAGE.
NOTE: The factory default system voltage setting for multi-voltage TS 840/870 transfer
switches is 480VAC, which will be indicated by a letter “Y” in the voltage code as shown
on the ATS model code (e.g. TS 873A0250A1AY) and on a warning tag attached to the
isolation plug.
2) To re-configure the ATS for the correct system voltage prior to energization, refer to Appendix
B.
3) For 240V High Leg Delta systems refer to the ATS instruction manual for correct phasing
required and re-configuring procedures.
CAUTION: FAILURE TO OBTAIN THE CORRECT ATS PHASING WILL RESULT IN
EQUIPMENT MALFUNCTION AND DAMAGE.