Watts Aerco INN 1060N - Auto-Manager Transfer; Run Hours and Run Cycles; High Temperature Governor

Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 8 – WATER HEATER MANAGEMENT
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 114 of 170
8.3.7 Auto-Manager Transfer
The Auto-Manager Transfer feature, once enabled, automatically transfers WHM Manager
functionality to a new unit if the current WHM Manager fails or loses power.
To use this feature (default = Disabled), go to: Main Menu → Advanced Setup → WHM
Cascade → Cascade Configuration on the unite designated as the WHM Manager and set
Auto-Manager Transfer to Enabled, then choose address of the backup unit in the Backup
Manager Addr parameter. You can also specify a delay before transferring manager
functionality in the Auto-Manager Timer parameter.
8.3.8 Run Hours and Run Cycles
Run hours and run cycles are monitored to select the Lead unit and Lag unit (next on unit) in a
WHM Cascade. In the event an Edge or PMC board is exchanged in the field, this feature will
allow the user to increase but not decrease the run hours or run cycles. Once a user hits enter,
the changes made will be permanent and this feature will not allow changing to the previous
value.
Only AERCO personnel are permitted to change this menu item. To increase the Run Hours or
Run Cycles, go to Main Menu → Advanced Setup → Unit → Unit Settings.
8.3.9 High Temperature Governor
The High Temperature Governor is a feature that aggressively prevents the outlet temperature
from exceeding the “Temperature High Limit”. The High Temperature Governor is independent
of the system PID and Feed-Forward control methodology and independently modulates the
Valve Position (Fire Rate) if the outlet temperature dangerously approaches the Temperature
Hi Limit parameter.
This feature has 5 separate temperature bands for more precise control.
This feature is enabled by the TEMP GOV parameter in Main Menu → Advanced Setup →
Performance → Temperature Control → FFWD Settings. Once enabled, the 5 “governor”
items, GOV Limit-5 to GOV Limit-15 are available. When the Outlet Temperature exceeds the
value of the Temperature Hi Limit parameter (in Main Menu → Advanced Setup →
Performance → Temperature Control → Temperature Conformance) the effective Fire Rate
will be reduced by the value entered in GOV Limit-5 through GOV Limit-15.