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Bosch 660 EF User Manual page 36

Indoor model/ natural gas/lp gas boilers
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Operation instructions
Danger: To prevent scalding
Do not allow anyone to change the wa-
ter temperature while hot water is run-
ning.
2. Set temperature
Always check the temperature setting before use.
Check the indicator lights.
3. Turn ON hot water
4. Turn OFF the hot water.
• For most residential applications, the recommended
setting temperature is 120°F (50°C) or less. For
applications that occasionally require a higher tem-
perature setting, locate the remote controller in a
convenient location.
• Consult local codes for minimum operating tempera-
tures.
5.4.1
Flow Meter Alarm
Preparation: Plug the bath drain
Starting with the Power OFF
1. Press the Power ON/OFF Button
The temperature will be displayed on the remote control
thermostat.
2. Set temperature
Always check the temperature setting before use.
Check the indicator lights.
3. Adjust flow meter alarm setting
Press the flow meter alarm set button (the setting will
flash on the display) and adjust with the setting buttons.
Choose the flow meter alarm setting from the following
options: 10 - 60 gallons (40 – 240 L) (In 5 gallons
(20 L) intervals), 70 gallons (260 L), 80 gallons (300 L),
90 gallons (340 L),100 gallons (380L), 262 gallons
(990 L).
The alarm will not sound if it is set for
i
262 gallons (990 L).
Flow meter setting will be (ex. 48 gallons (180 L).
The level can only be adjusted while the indicator is
flashing.
After ten seconds, the remote will again display the tem-
perature.
4. Turn on hot water
The temperature will be displayed on the remote control
thermostat.
5. Turn off the hot water when the alarm sounds
36
The alarm will sound when the set level has been
reached. Stop the water.
An alarm will sound for ten seconds when
i
the flow reaches the set level.
The water will continue to run unless it is
manually turned off.
The alarm will not sound if it is set for
i
262 gallons (990 L).
If the flow meter alarm is being used to indicate when a
tub is full:
• If any hot water is being used besides what is going
into the tub, the alarm will sound before the tub is full.
• If there was water in the tub before the fill began, or
if the water is not shut off manually when the alarm
sounds, the tub may overflow
• If there was water in the tub before the fill began, the
temperature in the tub after it is full maybe different
from the temperature setting.
5.4.2
Muting the Remote Controller
The remote controller will emit a sound when any button
is pushed. This sound can be muted if it is desired.
Initial factory setting is with sound.
i
1. Hold the Power ON/OFF Button for five seconds
• The flow meter alarm cannot be muted.
• The high temperature warning tone when setting the
unit to 125°F (55°C ) or higher will not emit a sound
when muted.
5.4.3
Adjusting the Maximum Output
Temperature
1. Turn OFF the power.
2. Press and hold the flowmeter alarm set button
until a sound is heard (2 sec.).
3. Change the temperature using the setting but-
tons.
USA
The upper limit of the hot water supply temperature can
be changed to 100°F,105°F, 110°F, 115°F, 120°F,
125°F, 130°F, 135°F, 140°F.
Canada
The upper limit of the hot water supply temperature can
be changed to 37°C, 38°C, 39°C, 40°C, 41°C, 42°C ,
43°C, 44°C, 45°C, 46°C , 47°C, 48°C, 50°C, 55°C or
60°C.
4. Set the Power button to ON when continuing to
using the unit as is. Otherwise, let the unit sit for
30 sec.
6 720 644 063

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660 efo