Benchmark Procombi A Series Installation & Servicing Instructions Manual page 4

DHW
TEMPERATURE
SELECTOR
HYDROMETRE
Fig. 1A
Hot water only
Boiler at OFF/standby
Heating & hot water
Heating & hot water with pre-heat Select this position when you want the boiler to respond to a heating request
DHW temperature selector
Heating temperature selector
2-digit LED display
Green LED lit
Red LED lit
Pressure gauge
2
GREEN LED
2-digit LED
display
MODE SELECTOR
SWITCH
Select this position if you want the boiler to supply hot water only (no heating)
Select this position when you want the boiler to be switched off for short
periods (days) or if the boiler requires to be reset (refer to users handbook)
Select this position when you want the boiler to respond to a heating request
from the time-clock/programmer
from the time-clock/programmer (comfort) and you want the domestic hot
water to be pre-heated
Move the selector clockwise to increase the hot water outlet temperature, or
counter-clockwise to reduce the temperature
Move the selector clockwise to increase the heating outlet temperature, or
counter-clockwise to reduce the temperature
Displays the current outlet temperature of the boiler. During a fault condition,
the appropriate fault code will be displayed (refere to the users handbook for
instructions regarding fault codes)
Boiler is working/responding to a heating/hot water request
Boiler has identified a fault and has failed-safe. Refer to users handbook for
instructions on how to reset
Ensure the system pressure is set correctly (minimum 0.5-bar)
RED LED
TEMPERATURE
SELECTOR
HEATING
CLOCK