Install Instructions
49
Start-Up Procedures
Control Display
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
displayed units from U.S. Customary (ºF or psi)
to metric (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 dis-
play (Parameter Mode) or operating dis-
play (Error Mode) is flashing.
Additional DHW Functions
Additonal DHW setting can be activated by
pressing the DHW button.
- ON ( LED lit above the DHW
button) - The appliance DHW function
is activated continuously. The appliance
will maintain a minimum heat exchang-
er temperature to assure instant delivery
of hot water.
- ECO ( LED lit above the DHW
button) - The DHW function is self-learn-
ing. The appliance will maintain a mini-
mum 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
maintain a minimum heat exchanger temper-
ature. This will affect the delivery and per-
formance of the initial DHW temperature.
In application in which the DHW is not
utilized or the DHW demand is minimal,
set the DHW function to OFF.
NOTICE
BEST PRACTICE
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