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 34 of 131
2.14 WATER HEATER PUMP RELAY
The CENTURION
’s power panel includes a secondary output board with a pump relay designed
to operate a Water Heater pump. This relay provides 120 VAC with a maximum pilot duty of 3
amps. If the pump power requirement under all conditions is greater than 3 amps, it is required
to use this relay to activate the pump through an intermediate relay with a higher power.
Figure 2-18: Water Heater Pump Relay
The Pump Off Delay feature allows the user to keep the pump running for up to 30 minutes after
the Water Heater has shut down and the demand is satisfied. To enable this feature, go to
Main Menu
→
Advanced Setup
→
Ancillary Devices
→
Relay
and set
the
Pump Off Delay
parameter to the number of minutes the pump will continue to pump after demand is satisfied.
2.15 NEXT STEPS
Once the unit is physically installed per the instructions above, the next step is to start the unit
for the first time and perform the combustion calibration procedure. See
SECTION 5: Initial
Startup
.
