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English
13
Connection of water heater thermistor
2.
With this system, a water heater thermistor must be installed between the outdoor unit and water heater to enable
•
detection of the water heater’s water temperature.
C Water heater thermistor extension cable
Joining of connectors
Joining of connectors
Water heater
thermistor
Outdoor unit
Water heater
Installation procedure for outdoor unit side
2-1
Install a water heater thermistor using the method appropriate for the distance between the outdoor unit and water heater.
•
When there is adequate distance between the outdoor unit and water heater
Remove the water heater thermistor connected to the S402
1)
connector on the printed wiring board. (Refer to
fi
gure 1.)
NOTE
Do not dispose of the water heater thermistor after
•
removing it. The thermistor must later be connected to the
end of the
C
water heater thermistor extension cable on
the water heater side.
S402
[
fi
gure 1]
Insert the
2)
C
water heater thermistor extension cable into the
S402 connector. (Refer to
fi
gure 2.)
S402
[
fi
gure 2]
Pull the
3)
C
water heater thermistor extension cable around
as shown in
fi
gure 3 and secure it to the wiring clamp
attached to the outdoor unit. There should be no external
tension applied to the cable after attachment.
At this time, ensure the clamp is correctly oriented as shown
in the diagram.
<Good>
<Wrong>
[
fi
gure 3]
01_EN_3P266963-1D.indd 13
10/30/2014 9:40:15 AM