Specifications

USP15H

USP20H

1. Mounting Work Procedure

1. Remove the top plate (front) and the left and right side plates (upper). (If there is not enough servicing

space above the air conditioner to place the steam heater in it, the side plate only may be removed for

this work.)

2. Mount the steam heater upper part and lower part supporting plates to the evaporator and fix them

with set screws.

3. To mount the steam spray type humidifier, with the cap and socket mounted to its spray nozzle, fix the

steam spray type humidifier securely to the steam heater.

4. With the upper part of the steam heater hung on the steam heater upper part supporting plate, screw

its lower part into the steam heater lower part supporting plate.

5. Remove the rubber bush from the side plate, and mount the top plate and side plates.

6. Wrap the pieces of asbestos round the joints for steam heater and steam spray nozzle at the portion

100 mm from the joint flange, and fix them tightly by the brass wire (This measure is to prevent the

steam piping from coming in contact with the casing.)

7. Screw each of the joints into the heater inlet/outlet pipe and spray inlet pipe.

2. Cautions on Mounting Work

¡ The mounting work illustration in the following page shows the right-hand setup of the steam heater.

For the left-hand setup of it, remove the heater upper part and lower part supporting plates, give the

heater 180° turn, re-fit the supporting plates.

¡ Replace the steam spray nozzle socket with the steam spray nozzle cap and vice versa.

¡ When the steam heater and the steam spray type humidifier are unused for a long period of time, drain

the water inside the piping without fail.

USP3H

USP8H

USP10H

Model

USP3H

USP8H

USP10H

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Steam Heater Mounting Position