Watts Aerco INN 1060N - Page 130

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 130 of 170
WHM Manager Programming & Start-Up Procedure
e. Check that the Manager LED is lit on the Controller’s front face.
5. Go to: Main Menu → Advanced Setup → WHM Cascade → Operating Controls →
Sequencing Control. The Next On Valve Pos parameter specifies the valve position that
will trigger the next unit to come on line, and the Next Off Valve Pos parameter specifies
the valve position that will trigger the next unit go off-line.
6. The Controller includes a Setback option, which can be used to adjust the setpoint
temperature, start and end time, for operation during periods of low demand. To specify the
setback time and temperature, go to: Main Menu → Advanced Setup → Performance →
Temperature Control → Setpoint Range and configure the following parameters:
a. Set the Setpoint Limiting parameter to Enabled.
b. Configure the Setpt Low Limit and Setpt High Limit parameters, which together
determine the temperature range within which the setpoint can vary. You can also
configure the Setpoint Limit Band parameter, which allows you to set the number of
degrees below Setpoint High Limit the unit’s outlet temperature must fall before the
unit restarts.
c. Configure the Setback Start Time and Setback End Time, which together define
when the Setback period will be in effect.
7. If you want to change the Lead/Lag Hours, go to: Main Menu → Advanced Setup →
WHM Cascade → Operating Controls → Lead/Lag, set Lead/Lag Settings to Select
Lead/Lag, then select the Lead and Lag units in the Lead Unit and Lag Unit fields.
Complete the instructions below on each unit designated as a WHM Client:
WHM Client Programming & Start-Up Procedure
1. Go to: Main Menu → Advanced Setup → WHM Cascade → Cascade Configuration and
set the WHM Unit Mode to WHM Client.
2. Go to: Main Menu → Advanced Setup → WHM Cascade → Cascade Comm.
a. Enter the Client unit’s address in the Unit Address parameter,
b. Set the communication parameters in the Cascade Baud Rate, Network Timeout
and Error Threshold parameters.
c. Specify the Unit Failsafe Mode, which determines what happens if a WHM Client
units loses communication with the WHM Manager.
3. If you want to change the Lead/Lag Hours, go to: Main Menu → Advanced Setup → WHM
Cascade → Operating Controls → Lead/Lag, set Lead/Lag Settings to Select Lead/Lag,
then select the Lead and Lag units in the Lead Unit and Lag Unit fields.