TriangleTube Prestige Excellence Part 1 - Manual (Page 98)

Water Heater Start-Up
17
4. Press the + or - button until the desired setting
is achieved. Press STORE to save the setting.
The display will flash when the revised setting
is accepted.
5. Once the desired parameter setting has been
revised and stored within the Prestige Control
module, press RESET to exit the CODE mode.
Additional DHW Features
Frost Protection
Through the use of the IDWH sensor, the Prestige
Excellence Control module will now provide a
Frost Protection feature to the water heater.
The Frost Protection feature is designed to protect
the Excellence water heater from a potential freeze
up. The protection is activated once the IDWH
sensor records a domestic temperature below 38ºF.
At that time the Prestige Excellence will begin the
burner function at low input, the circulator will
begin circulating and the internal 3-way valve will
open. The burner will continue operating at min-
imum input with circulator energized until the sen-
sor senses a domestic water temperature above
50ºF. At that point the boiler will shut down the
burner function and circulator. This feature is
always active even if the DHW operation is in the
OFF mode and cannot be overridden.
Troubleshooting
Error Codes
b_38 alternating with a status code of 9
The IDWH Sensor is not properly connect-
ed to the Prestige low voltage terminal
strip. Check for proper connections and
proper terminals
b_33 alternating with a status code of 9
The IDWH Sensor is short-circuited.
Check for proper connections to the
Prestige low voltage terminals.
Once the condition is corrected, the errors will
automatically reset and the Prestige Excellence
will return to normal operation.