A.O. Smith HPI-40C1.0AT User Manual page 13

6. Pump circulation (Figure 15)
Press the key " ", and then the character "Pump" will be lighted on and the pump installed in the inlet
PUMP P
and outlet pipes of the water heater will start the circulation immediately.
Timing setting of circulation pump
Long press the key "
PUMP
the circulation pump, and press the key " " or "
to adjust the temperature. Then press the key "
to enter the setting of the starting and ending time of
the circulation pump. Detailed timing setting
operation please refers to the timing setting.
The default set temperature of the circulation pump
is 45°C; the adjustable range of the temperature is
40°C-65°C.
The default operation period of the circulation pumps
respectively are 06:00-09:00 and 17:00-22:00.
7. Reset
Reset may help heater recover from misoperation or fault. Press and hold both "PROGRAM" and
"INSTANT" simultaneously for 8 seconds, will turn off the heater after 2 seconds display off all characters
on screen, and reset setting temp, clock, timer to default status and remove AES memory and faulty code.
8.Heating mode
" to switch the heating mode between "EFFIENCY" and "HYBIRD TURBO" with the
Press the key "
MODE
lighted up indicator.
In Efficiency mode, the heater is heating highly efficiently;
In Hybrid Turbo mode, the heater is heating rapidly.
Temperature and pressure relief valve Inspection
Temperature and pressure relief valve is a kind of protection device against overpressure, thus it is a normal
phenomenon to see water discharged from safety valve when water pressure rises over 0.8Mpa due to
heating or supply reason. User should check temperature and pressure relief valve regularly as follow: open
handle on temperature and pressure relief valve to get rid of the calcium carbonate deposit and etc., if water
dose not discharge from valve, please contact local authorized dealer.
" to enter the setting of
P
"
"
"
PROGRA
MODE
10
SETTING
PUMP
PROGRAM INSTANT
PUMP
Figure 15