Removing Air Trap; Valve Installation - Toyotomi Oil Miser OM-180 Installation Manual

When operating for the first time or when refueling an empty tank, air may be trapped in the fuel line, mak-
ing ignition difficult. In this situation, after removing the trapped air thoroughly from the fuel filter at the fuel
tank outlet, follow the procedures below:
1. Press "POWER SWITCH" to "OFF" position. Disconnect the power supply cord.
2. Place a small container under the fuel strainer located inside the water
heater.
3. Loosen the screw on top of the strainer. Immediately wipe off any spilled
fuel.
4. Remove the trapped air thoroughly. Failure to remove all the air will cause a
noisy fuel pump, improper ignition and flame failure.
5. Tighten the screw after removing trapped air.
6. Plug into the receptacle. Press "POWER SWITCH" to "ON" position.
NOTE: In the event of an ignition failure, press "POWER SWITCH" to "OFF" position and after 10
seconds press "POWER SWITCH" to "ON" position once again.
TEMPERATURE AND PRESSURE RELIEF VALVE INSTALLATION
At the time of installation, a temperature and pressure relief valve complying with the standard for Relief
valve for Hot Water Supply System, ANSI, shall be installed in the threaded fitting on the water heater. Local
codes should govern the installation of the relief devices.
Specifications required of this temperature and pressure relief valve are as follows:
Inlet (male): 3/4 in.
Temperature relief: 210°F
Pressure relief setting: 150PSI
Rated capacity: Min. 148,000 BTU/H
(a) No other valve should be placed between the relief valve and the water heater.
(b) Discharge from the relief device is routed to a suitable place for disposal when relief occurs.
(c) No reducing coupling or other restrictions should be installed in discharge line.
(d) Discharge line should be installed to allow complete drainage of the water heater.
Note: Manual operation of pressure relief valves should be done at least once a year.

REMOVING AIR TRAP

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