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Installation & Operation Manual
64
Status Display Screens (cont’d)
Operation of the cascade
The water heater designated as the Leader will have two additional display screens that can be viewed. These screens will provide
information regarding the operation of the Cascade. Each screen will contain two viewable items. The following is a description
of the individual items and what they can display:
Screen Display shows: Description
#7
Cas: Off
The Leader control has been turned off by the Enter/Reset button on
the Smart System display.
Cas: Standby
The Leader water heater has not received a call for heat from a remote
thermostat.
Cas: 127.4F (130)
The Cascade is now active. The tank temperature will be displayed.
The Cascade set point will be displayed in parenthesis.
Cas: Setpoint Met
The Cascade has met the water temperature set point, but is still
receiving a call for heat from a tank sensor.
Cas: No Members
The Leader control could not detect any Member controls to
participate in the Cascade.
PMP: Off
The Leader control has not received a call for heat from a tank sensor
and has not powered the water heater pump.
PMP: On
The Leader control has received a call for heat from a remote
thermostat and has powered the water heater pump.
PMP: Delay
The tank call for heat has been satisfied and the water heater pump is
running for a fixed time to remove any residual heat.
Press the Next arrow key on the SMART SYSTEM display to access Screen #8.
#8
Cas Pow: ***% ***%
The first percentage shows the firing rate that is being sent to the last
water heater called on. The second percentage shows the total power
available to the Cascade.
Present: 01234567
Example:
Present: 23----01
Shows the number of water heaters connected to the Cascade. The
Leader is designated as 0. Members will be designated 1 - 7. If a “-“ is
used in place of a number, that water heater is either not connected,
or in a lockout mode and not available for the Cascade. If the number
is flashing, then that water heater is providing heat to the Cascade. As
the lead water heater is changed from day to day, that water heater’s
address will be shown first in the string of numbers. In the example,
water heaters 0 - 3 are present and water heater 2 is the lead water
heater.
Press the Next arrow key on the SMART SYSTEM display to roll back to Screen #1. At any point if you wish to access an
earlier screen, press the Previous arrow key on the SMART SYSTEM display.
11 Operating information