Specifications

2.1.2 Mounting Procedure

1. Remove the suction grille, front plates (upper & lower) and rear plate, and temporarily keep them in a

safe place.

2. Attach the fan motor cover. (For USP8H only)

3. Align the center of the electric heater with that of the casing, and drill holes on site.

4. Fix both the upper and lower parts of the electric heater securely to the evaporator.

5. Mount the overheat protection thermostat and the thermal fuse on the mounting plate and fix the plate to

the electric heater.

6. Take out the lead wires from the overheat protection thermostat and thermal fuse and clamp them on the

heater body.

7. Drill a hole in the rubber bush which is mounted on the side blind plate of the evaporator, and pass

therethrough the heater wires and the lead wires of safety device. (In the case of Models USP3H,

however, pass the lead wire of safety device along the nook of the side plate over to switch box.)

8. Remove the cover of the switch box, and attach the magnetic switch for electric heater and the terminal

board for power supply in the box.

9. Mount the selector (toggle) switch for electric heater on the control panel.

¡ USP3H ....................... Cooling / Heating selector switch

¡ USP8H, USP10H ....... Heater step No. selector switch

10.Carry out wiring work.

Proceed to the wiring work according to the electric wiring diagram, needless to say, paying due

attention not to confuse wires, and securely tighten setscrews which are fixing the wires. Clamp the

wires properly so as not to let them come in contact with the electric heater.

11.Mounting work is completed with fitting the cover of the switch box and the protection plate.

1. Remove both the left and right side plate (upper) and temporarily keep them in a safe place.

2. Mount the upper and lower part fixing plates of the electric heater respectively to the upper and lower

frames of the evaporator.

3. Mount the overheat protection thermostat, thermal fuse and lead wires on the safety device mounting

plate.

4. Fix the safety device mounting plate to the electric heater body.

5. Clamp the electric heater to the evaporator through the upper and lower fix plates.

6. Connect the lead wires to the electric heater, and pass them together with the lead wires for safety device

through the wire hole of the drain pan.

7. Remove the cover of the switch box, and attach the magnetic switches for electric heater and the

terminal board for power supply in the box.

8. Mount the step selector switch for electric heater to the control panel. (For USP15H only)

9. Carry out wiring work.

Proceed to the wiring work according to the electric wiring diagram, needless to say, paying due

attention not to confuse wires, and securely tighten setscrews which are fixing the wires. Clamp the

wires properly so as not to let them come in contact with the electric heater.

10.Mounting work is completed with fitting the lid of the switch box and the protection plate.

USP3H

USP8H

USP10H

USP15H

USP20H