Centurion Water Heater- Edge [ii]: Install-Operation-Service
SECTION 2: INSTALLATION
OMM-0153_A
• 8/25/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 26 of 131
Figure 2.10-2: Main Power Panel, 110 V
NOTES:
The 115 VDC to 24 VDC transformer provides power to the Edge Controller, Condensate Block
Sensor and the Sequencing Isolation Valve. It is mounted on rails inside the power box. All
components in the Power Panel are mounted on a DIN rail on the panel.
The 115 V to 12 VDC transformer provides power to the IO Board and O2 ECU module. Refer
to APPENDIX B
All electrical conduit and hardware must be installed so that it does not interfere with the
removal of any unit covers, inhibit service/maintenance, or prevent access between the unit
and walls or another unit.
2.10 FIELD CONTROL WIRING
– I/O BOARD
Each unit is fully wired from the factory with an internal operating control system. No field control
wiring is required for normal operation. However, the Edge Controller used with your
CENTURION unit does allow for some additional control and monitoring features. Wiring
connections for these features can be made on the Secondary Power Panel (see Figure 2-14)
and the
Input/Output (I/O) board located behind the unit’s front panel (see Figure 2-15).
WIRE CONDUITS
24VDC POWER
SUPPLY
FUSE BLOCK
TERMINAL BLOCKS
POWER
BREAKER
FUSE BLOCK
TERMINAL
BLOCKS
Figure 2-13: Electrical Power Panel Internal Components
12VDC POWER
SUPPLY
