Burner’s Construction; Diagram Of Hp-115 And Hp-125 Universal Oil Heater; Symbols - Hiton HP-115 User Manual

Bimetallic sensor in the burner triggers reaction in form of clenching contacts when the
temperature in burner rises above 40°C and opening of contacts when the temperature falls
below 35°C. In cases such as overheating or oil overflow, processor controls the signal from the
bimetallic sensor and activates ventilating fan until the burner cools down to the temperature
below 35°C.
Second bimetallic sensor is installed next to the blower fan with threshold temperature set at
90°C. Clenching of contacts, when threshold temperature is exceeded, causes that the burner
immediately switches into the overheating mode (see point. 8 of the instruction).
The heater is also equipped with weigh sensor placed under the overflow tank (the so-called
overflow fuse).
When the tank is filled, the heater immediately switches into the overflow mode (see point 8 of
the instruction).
The control panel of the heater is factory-connected with other elements of the system (such as
sensors, pump, and fan) and it is a safety requirement that during regular use there be no
interference with covered and sealed part of the control panel as well as integrity of wiring. Any
interference of unauthorized person may cause an electric shock (230V/50Hz) and burns.
6. Burner's construction
Figure 1: Diagram of HP-115 and HP-125 universal oil heater
Bimetallic sensor of burner's temperature
T40
T100 Bimetallic thermostat (STB)
OVF Overflow fuse
Pump (48W [230V AC, 50Hz])
MP
MW Fan (35W [230V/50Hz], capacity 600 m³/h (HP-115), capacity l000 m³/h (HP-125)

Symbols:

3