Operation instructions
RTG 199 HE – 6 720 811 617 (2016/01)
36
▶ Press buttons
or
in order to reach desired temperature.
Fig. 61
Setting the water temperature
The desired temperature of the hot water can be adjusted on the front
control panel of the heater.
The water heater has an electronically controlled gas valve that
modulates the burner input in response to both varying hot water flow
rates and/or changes in any incoming and outgoing water temperatures.
Note:
The water heater, running at minimum BTU, may still achieve
temperatures above the desired set temperature. Low flowing fixtures
are the leading cause of this type of temperature overshoot. To combat
this symptom, clean fixtures or replace with higher flowing ones if
necessary.
Saving water resources:
▶ Make sure you close all the taps after any use. Avoid leaving the taps
dripping. Repair any leaking tap.
▶ Define the temperature you want, in the appliance or with the remote
control. This way you have the precise water flow needed (mixing
cold water to regulate temperature will increase the water flow with
consequent waste of water).
The water heater will not ignite if inlet water temperature exceeds the set
point temperature less 9 °F (5 °C). In this condition, the solar mode
indicator will show on the LCD display. See fig. 57, page 35.
Fig. 62
6.5
Operation
▶ When a hot water tap is opened, main burner ignites and LCD
displays indication .
Fig. 63
▶ LCD flashes until selected temperature is reached.
▶ Power bar indicates power percentage in use.
6.6
Reset button
If the LCD shows the error symbol
do not shut off power or unplug
the heater. Follow instructions below to reset error first.
Record the error code on LCD and consult “Problem solving” chapter
9.1, page 44.
Fig. 64
After following instructions indicated in “Troubleshooting” section,
▶ press reset button firmly in order to return heater to normal
operation.
Solar mode activation formula
Example:
Temp. inlet > Temp. set - 9 °F
(5 °C)
104 °F (40 °C) > 112 °F (44 °C) -
9 °F (5 °C)
Table 41
WARNING:
Appliance damage!
▶ In applications where inlet water temperature can
exceed 140°F (60°C), a thermostatic or mixing valve
must be installed before the appliance to prevent
water exceeding 140°F (60°C) from entering the
appliance.
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6720608920-14.1AL
