Removing Air Trap; Temperature And Pressure Relief Valve Installation; Permanent Wiring Installation - Toyotomi Oil Miser OM-148 Installation Manual

Instantaneous oil-fired water heater type b
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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.
To catch the fuel which will drain out, put a small container under the strain-
er.
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
improper ignition and may extinguish the unit.
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 opening provided on the water
heater for the temperature and pressure relief valve. 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 is 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 are installed in discharge line.
(d) Discharge line is installed to allow complete drainage for the device and line.
Note: Manual operation of pressure relief valves should be done at least once a year.
WARNING: RISK OF FIRE AND ELECTRIC SHOCK. Make sure the power supply cord is disconnected to
avoid any electric shock before servicing. Electric shock may cause serious injury. It is recom-
mended that installation should be conducted by a licensed electrician.

REMOVING AIR TRAP

PERMANENT WIRING INSTALLATION

6

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