6 Gas connections
Do not check for gas leaks with an open WARNING flame
use the bubble test or check for gas leaks can cause severe personal injury, death, or substantial property damage.
14. Turn on the gas supply at the manual gas valve.
15. Turn the power switch to the “ON” position.
16. Adjust the temperature set point on the control panel of the SMART TOUCH control module to the desired water temperature so the appliance will call for heat.
17. Check burner performance by cycling the system while you observe burner response. The burner should ignite promptly. Flame pattern should be stable. Turn system off and allow burner to cool, then cycle burner again to ensure proper ignition and flame characteristics.
Figure 6-4 Inlet Gas Supply Check
Installation & Operation Manual
Gas Pressure
The gas pressure must remain between 4 inches w.c. (.99 kPa) minimum and 14 inches w.c. (3.5 kPa) maximum for Natural gas and between 4 inches w.c. (.99 kPa) minimum and 14 inches w.c. (3.5 kPa) maximum for LP gas during standby (static) mode and while in operating (dynamic) mode. If an
Ignition problems are especially noticeable in NEW LP installations and also in empty tank situations. This can also occur when a utility company shuts off service to an area to provide maintenance to their lines.
Gas valve replacement
The gas valve MUST NOT be replaced with a conventional gas valve under any circumstances. As an additional safety feature, the gas valves have flanged connections to the venturis and blowers.
WARNING Failure to follow all precautions could result in fire, explosion, or
death!
WARNING DO NOT adjust or attempt to measure gas valve outlet pressure.
Attempting to alter or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death, or substantial property damage.
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