XPC UPS service in Toronto

Ranges we service

From the M90 manual

The M90 and M90L user and installation manual sets limits worth checking on every visit:

• Heat: output capacity is derated above 30 °C, to 90% at 35 °C and 80% at 40 °C ^[5]. A frame loaded near its rating in a warm room can trip to bypass on a hot afternoon.
• Clearance: 40 in above and behind the UPS, 60 in in front of the UPS and its battery cabinets ^[7]. Storage boxes in that space block both airflow and service access.
• Battery test: the interval runs from 7 to 99 days, 30 days by default, with a 10-second test by default ^[8].
• Battery Age Alert: settable from 12 to 60 months, and disabled by default ^[9]. We enable it at start-up, set to the battery’s expected life, so the frame warns before the string is due.
• Power module swap: at least one module stays in the cabinet while another is removed; removing them all needs maintenance bypass ^[10].

Start-up and expansion

A new XPC frame is placed, connected by a licensed electrical contractor, started, and its settings recorded. Expansion on a modular frame starts from the measured load: power modules are added for capacity or for N+1, battery modules for runtime, and the breaker sizes are checked against the new rating.

What we check on an XPC unit

• The event log and module status, from the display or the network card
• Each battery module or string against its last reading ^[11]
• Power module fans and the temperature at the frame, against the derating limits
• The redundancy setting against the actual load, so an N+1 frame is still N+1
• The transfer to maintenance bypass and back, to a method agreed for the live load