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Remote Controller - Bosch 660 EF User Manual

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4.2

Remote Controller

Applicable Model
660 EF (O)
Remote Controller
Table 7
Install the remote controller according to
i
the instructions in section 4.3 (page 31).
• The 660 EF can be programmed so that it will default
to one of three temperatures 140°F, 130°F, 120°F
(60°C, 55°C, 50°C) when the temperature selection
wire is not connected. To change the default temper-
ature, connect the temperature selection wire as
shown in the below diagram.
Note: If the "160°F (70°C) connector" is being used,
the unit will automatically default to a temperature of
120°F (50°C) for safety if the remote controller is not
installed.
• The water heater has been factory set to allow a max-
imum temperature setting of 120°F (50°C). To
access higher temperature settings with the optional
remote controller installed, follow the below steps.
The unit can only be set to temperatures in the range
of 145-160°F (60°C-70°C) when the optional
remote controller is installed.
When setting the maximum temperature to
125-140°F (50-60°C)
1. Turn the water heater off by pressing the ON/OFF
button on the remote controller.
2. Press and hold the FLOW METER ALARM SET but-
ton until a sound is heard (2 sec.) and "120°F (50°C)"
appears on the display.
3. Set the upper limit of the hot water supply tempera-
ture to 125°F, 130°F (55°C) or 140°F (60°C) using the
UP and DOWN setting buttons.
4. To put the water heater back into operation, press the
ON/OFF button on the remote controller. To keep the
water heater off, let the unit sit for 30 sec. to return to
the original display.
When setting the maximum temperature to
125-160°F (55-70°C)
1. Turn the water heater off by pressing the ON/OFF
button on the remotecontroller.
2. Disconnect electrical power to the water heater.
3. Remove the front cover of the water heater (4
screws).
4. Locate the bag of temperature selection wires
attached to the inside of the unit in the bottom left
corner.
6 720 644 063
BRC01US for USA,
BRC01CA for Canada
5. Connect the temperature selection wire labeled
"160°F" to the circuit board as shown on the right.
6. Replace the front cover of the water heater (4
screws).
7. Reconnect electrical power to the water heater, but
do not turn it on.
8. Press and hold the FLOW METER ALARM SET but-
ton until a sound is heard (2 sec.) and "120°F (50°C)"
appears on the display.
9. Set the upper limit of the hot water supply tempera-
ture to 130°F (55°C) ,140°F, 150°F, 160°F (60°C,
65°C, 70°) Cusing the UP and DOWN setting buttons.
10. To put the water heater back into operation, press
the ON/OFF button on the remote controller. To keep
the water heater off, let the unit sit for 30 sec. to return
to the original display.
Fig. 28
Warning:
When changing the temperature, make
sure to confirm with the customer that
the temperature of the hot water will be
very high and that there is a risk of
scalding.
Warning:
Water temperatures above 125°F
(52°C) can cause severe burns or death
from scalding.
Connecting Remote Controller Cord to Unit
• Keep the remote controller cord away from the freeze
prevention heaters in the unit.
• Tie the redundant cord outside the water heater. Do
not put the extra length inside the equipment.
• The remote controller cord can be extended up to
300' (90m) with 18AWG wire.
• Use a Y type terminal with a resin sleeve. (Without
the sleeve, the copper wire may corrode and cause
problems).
Electrical Wiring
29

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