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16
Operation instructions
ensure that the hot water temperature will remain
steady, although the water flow demand might vary. The
output temperature can be adjusted with either the
temperature adjustment knob or the gas control slide.
Temperature adjustment knob
The temperature adjustment knob on the front bottom of
the heater (see Fig. 22) adjusts temperature by
adjusting flow capacity. See table 4 for details.
Fig. 22
As the temperature adjustment knob is turned counter-
clockwise, the output temperature will lower and the
activation rate will be raised. Turning the knob
clockwise will raise the temperature and lower the
activation rate.
Gas control slide button
The gas control slide button adjusts temperature by
adjusting how much gas is allowed to flow to the
burners.
As the slide is adjusted to the left, the output
temperature will lower, with the lowest setting being the
small flame position.
Fig. 23
The hottest position is the highest flame position all the
way to the right.
Fig. 24
4.5 Draining water from heater
If there is a risk of freezing, proceed as follows:
B Remove the retaining clip from threaded bushing
(pos. 1).
B Remove threaded bushing (pos. 2) from water valve.
B Empty the appliance of all water.
Fig. 25 Drain plug and filter location
1 Retaining clip
2 Threaded bushing
Knob
position
Clockwise
Counter-
clockwise
Degree rise 90°F 45°F
Activation rate 0.5 GPM 1.1 GPM
Max flow rate 2.0 GPM 3.7 GPM
Table 4 Temperature rise (slide control to the right)