User Guide

Appliance Control Display
8
SECTION V - Appliance Control Display
1. On/Off (Lit when on)
2. CH operation or setting maximum CH temperature
3. DHW operation or setting DHW temperature
4. Main display with temperature of CH or DHW or
CH water pressure or fault code
5. Temperature ºF or pressure psi
6. Temperature ºC or pressure bar
7. DHW function eco (learned)
8. DHW function on (minimum block temp)
9. Operating display
10. Flashes to indicate fault
A. On/Off button
B. CH /DHW/parameter button
C. - button
D. + button
E. Units U.S. customary or metric
F. DHW function off/eco/on
G. Service button
H. Reset/store button
Read-Out
Operation
Appliance ON/OFF
1. The appliance operation is started using the
ON/OFF button.
2. When appliance is in operation, the green LED
above the ON/OFF will be lit.
3. When the appliance is not in operation, the green
LED above the ON/OFF will not be lit. The
main display will show “OFF” and the operating
display will show .
Units
Press Up or Down arrow button to change the dis-
played units from U.S. Customary (ºF or psi) to met-
ric (ºC or bar). The ºF/psi LED will be lit for U.S.
Customary units or ºC/bar LED will be lit for metric
units.
Units cannot be changed if the main display
(Parameter Mode) or operating display
(Error Mode) is flashing.
Additional DHW Functions
Additional DHW setting can be activated by press-
ing the DHW button.
- ON ( LED lit above the DHW button)
- The appliance DHW function is activated
continuously. The appliance will maintain a
minimum heat exchanger temperature to
assure instant delivery of hot water.
- ECO ( LED lit above the DHW button)
- The DHW function is self-learning. The appli-
ance will maintain a minimum heat exchanger
temperature during times with typical domestic
demands, learned over the past 3 days of use.
- OFF (no LED lit) - The appliance will not main-
tain a minimum heat exchanger temperature. This
will affect the delivery and performance of the ini-
tial DHW temperature.
In application in which the DHW is not uti-
lized or the DHW demand is minimal, set the
DHW function to OFF.
NOTICE
BEST PRACTICE