FEATURES
IMPORTANT
IT IS REQUIRED THAT A QUALIFIED SERVICE TECHNICIAN PERFORM THE INITIAL FIRING OF THE HEATER.
A CHECKLIST AND SERVICE INFORMATION section are included at the rear of this manual. By using this checklist the user may be able to make minor operational adjustments and save himself unnecessary service calls. However, the user should not attempt repairs which are not listed in this section.
WATER TEMPERATURE CONTROL
DANGER
THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT WATER TEMPERATURES REQUIRED FOR AUTOMATIC DISHWASHER AND LAUNDRY USE CAN CAUSE SCALD BURNS RESULTING IN SERIOUS PERSONAL INJURY AND/OR DEATH. THE TEMPERATURE AT WHICH INJURY OCCURS VARIES WITH THE PERSON’S AGE AND TIME OF EXPOSURE. THE SLOWER RESPONSE TIME OF CHILDREN, THE ELDERLY OR DISABLED PERSONS INCREASES THE HAZARDS TO THEM. NEVER ALLOW SMALL CHILDREN TO USE A HOT WATER TAP, OR TO DRAW THEIR OWN BATH WATER. NEVER LEAVE A CHILD OR DISABLED PERSON UNATTENDED IN A BATHTUB OR SHOWER.
THE WATER HEATER SHOULD BE LOCATED IN AN AREA WHERE THE GENERAL PUBLIC DOES NOT HAVE ACCESS TO SET TEMPERATURES.
The water temperature is controlled using the Touch Pad Buttons on the Display at the front of the unit (See Figure 1). This control utilizes two temperature probes to determine the tank temperature. The upper temperature probe is located on top of the unit in the back and the lower probe is located on the front center axis of the tank.
The temperature may be adjusted from 70°F/21°C to 180°F/82°C. The thermostat was adjusted to 70°F/21°C before the heater was shipped from the factory. It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that the water temperature be set for the lowest temperature which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater and minimize scale formation.
SETTING THE WATER HEATER TEMPERATURE AT 120°F/49°C WILL REDUCE THE RISK OF SCALDS. Some states require settings at specific lower temperatures.
Figure 1 shows the approximate time-to-burn relationship for normal adult skin. Short repeated heating cycles caused by small hot water uses can cause temperatures at the point of use to exceed the thermostat setting by up to 20°F/-11°C. If you experience this type of use, you should consider using lower temperature settings to reduce scald hazards.
Temperature | Time to Produce 2nd & 3rd |
Setting | Degree Burns on Adult Skin |
180°F / 82°C | Nearly instantaneous |
170°F / 77°C | Nearly instantaneous |
160°F / 71°C | About 1/2 second |
150°F / 66°C | About |
140°F / 60°C | Less than 5 seconds |
130°F / 54°C | About 30 seconds |
120°F / 49°C | More than 5 minutes |
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| FIGURE 1 |
Valves for reducing
FIGURE 2
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