7.7
Contactor
•
Disconnect electrical supply to the heater.
•
Open the controls compartment door.
The contactor and overload are located on the electrical panel
plate situated on the right hand side of the unit.
•
Disconnect all wiring to the to the contactor noting
which cables are connected to which terminals
•
The Contactor is attached to a DIN rail using a spring
loaded din fi xing clip - using a small fl at head screwdriver,
prise the clip downwards to release the MCB.
•
Replace in reverse order.
7.8
MCB
•
Disconnect electrical supply to the heater.
•
Open the controls compartment door.
The MCB is located on the electrical panel plate situated on
the right hand side of the unit.
•
Disconnect the two cables from the MCB noting
which cables are connected to which terminals
•
The MCB is attached to a DIN rail using a spring
loaded din fi xing clip - using a small fl at head screwdriver,
prise the clip downwards to release the MCB.
•
Replace in reverse order.
7.9
Fan/Limit Stat Assembly
•
Disconnect electrical supply to the heater.
•
Loosen the cable gland then disconnect the three
cables from the fan stat (left hand) and the two cables
from the limit stat (right hand) noting which cables are
connected to which terminals.
•
Remove the two screws fi xing the assembly to the
body of the heater.
•
Carefully withdraw the assembly through the hole
and replace in reverse order.
7.10
Axial Fan
The axial fan is removed form the rear of the heater (opposing
side to the outlet). Ensure there is enough room to work in and
to withdraw the fan blower.
•
Disconnect electrical supply.
•
Open the controls compartment door.
•
Disconnect fan connection to the electrical terminals
within the controls compartment
•
Remove the four bolts fi xing the fan guard to the rear
panel
•
Carefully withdraw the fan by sliding it out from the
rear.
•
Replace in reverse order
Summary of Contents for OUH 2 100
Page 20: ...Wiring Diagram 33 65 245 Models OUHA OUHC40 ON OFF Riello Oil Fried Burner...
Page 21: ...Wiring Diagram 33 65 246 Models OUHA 60 70 ON OFF Riello Oil Fried Burner...
Page 22: ...Wiring Diagram 73 65 010 Models OUHA 90 100 ON OFF Riello Oil Fried Burner...
Page 23: ...Wiring Diagram 33 65 247 Models OUHC 60 100 ON OFF Riello Oil Fried Burner...
Page 24: ...Wiring Diagram 33 65 248 Models OUHA OUHC 40 HI LOW Riello Oil Fried Burner...
Page 25: ...Wiring Diagram 33 65 249 Models OUHA 60 70 HI LOW Riello Oil Fried Burner...
Page 26: ...Wiring Diagram 73 65 011 Models OUHA 90 100 HI LOW Riello Oil Fried Burner...
Page 27: ...Wiring Diagram 33 65 250 Models OUHC 60 100 HI LOW Riello Oil Fried Burner...
Page 35: ...Turbulator positions in models 40 70 8 off Turbulator positions in models 90 100 12 off...
Page 43: ...Notes...
