INSTALLATION AND OPERATION INSTRUCTIONS
2-2
HC SERIES BOILERS
HC 13-50, HC 23-84, HC 29-106, HC 20-125, HC 33-160
2.3
CONTROL
1
Power Indicator
A
Power - ON / OFF
2
Space Heating
B
Space Heating / DHW Toggle
3
Domestic Hot Water
C
Minus
4
Main Display
D
Plus
5
Fahrenheit and PSI
E
Fahrenheit/Celsius
6
Celsius and Bar
F
Domestic Hot Water Comfort / Eco
7
Comfort / ECO / OFF - Indicator
G
Service
8
Comfort / ECO / OFF - Indicator
H
Reset Button
9
Service Display
10
Flashes to indicate a fault
Table 7: Controller Indicators and Buttons
NOTE:
The control displays codes that include upper and lower case letter and a
combination with a period after the letter. Example: C, c., c are all valid parameter
codes. When adjusting settings, double check that you are in the correct
parameter.
See DC / HC Controller Manual for details.
INSTALLER INTERFACE
2.3.1 Appliance ON/OFF
The boiler can be switched on and off with the On/Off
button. When the boiler
is “ON”, the green LED above the On/Off
button will be on. When the boiler is
on and there is no call for heat or DHW the displays are blank. When the boiler is
“OFF” the main display reads the system pressure, e.g. “14P” for 14 psi.
If the boiler is being powered up after a power outage, the boiler will return to
heating as it was when the power was removed from the boiler.
2.2
