To Turn Off Gas To Appliance - Bock Water heaters ezFIT Installation And Operation Instruction Manual

TO TURN OFF GAS TO APPLIANCE

1. Set thermostat to lowest setting.
2. Turn off all electric power to appliance if service is to be performed.
3. Push in gas control knob slightly and turn clockwise to "OFF". DO NOT FORCE.
4. Close main gas valve.
INSPECT THE INSTALLATION AND ADJUST THE CONTROLS
The thermostat has been adjusted to 120°F at the factory. Wait until thermostat has shut off
gas to the main burner. Wait 30 seconds following shut-off of gas, then set thermostat to the
highest temperature. The main burner should relight. Set thermostat to the lowest tempera-
ture; the main burner should go out. The thermostat should be adjusted to the minimum
setting that will meet the hot water needs of the homeowner or commercial application.
There is a scald potential if the thermostat is set too high. The recommended temperature
setting for normal residential use is 120°F. If higher temperature settings are needed for
combined appliance applications or commercial use, an automatic tempering valve
must be installed on all domestic hot water lines. Should overheating occur, or the gas
supply fail to shut off, turn off the electricity to the water heater.
MEASURING THE OUTCOMING WATER TEMPERATURE
The thermostat is factory set at 120°F for domestic use. It is the responsibility of the building
owner to verify that the installer follows the recommended quantitative testing for measuring
the out- coming water temperature. To make sure that the system works properly after installa-
tion and in the future, it is recommended that the heater's performance be measured and mon-
itored. Run water out of the tap nearest the heater until it comes out warm. Using a calibrated
thermometer, take a measurement. If the water is not at a suitable temperature for the installa-
tion, have a qualified service person adjust the temperature control. Contact Bock for further
information if needed.
This log (or a similar one) should be filled out as follows:
Date Time
Hydrogen gas can be produced in a hot water system served by a heater that has not been
used for a long period of time (generally two weeks or more). Hydrogen gas is extremely
flammable. To reduce the risk of injury, open the hot water faucet at the highest location in
the house for several minutes before using any electrical appliance connected to the hot
water system. If hydrogen is present, there may be an unusual sound similar to air escaping
through the pipe as the water begins to flow. Do not smoke or allow an open flame near the
faucet at the time it is open.
Atmospheric Gas
CAUTION
Person running test
WARNING
Set temp °F Outlet temp °F
Page 11