American Water Heater RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER ユーザーズマニュアル

CN 211/215 UIM Communication Cable:

•  Pin 1 - +5 V
•  Pin 2 - +12 V
•  Pin 3 - Signal A+
•  Pin 4 - Signal B+
•  Pin 5 - Ground

Note:

Both CN211 and CN215 are identical and either can be used for the UIM communication.

CN 208 Overload Detection:

•  Pin 1 - High pressure switch.
•  Pin 2 - High pressure switch.
•  Pin 3 - Low pressure switch.
•  Pin 4 - Low pressure switch.
•  Pin 5 - Not used
•  Pin 6 - Not used
•  Pin 7 - Not used
•  Pin 8 - Not used
•  Pin 9 - Condensate pump signal overfl ow (optional)
•  Pin 10 - Condensate pump signal overfl ow (optional)

Note:

Pin 9 and 10 are connected by a jumper wire. This wire should be cut and wired in series to

the overfl ow switch of the fi eld supplied condensation pump (optional).

SW 201 Dip Switch:

•  SW 1 - Not used
•  SW 2 - Not used
•  SW 3 - Not used
•  SW 4 - Not used

Led 201 Power Indicator:

• LED 201 when illuminated, indicate that 5 and 12 Volts DC are present for the UIM

Section D

LED 202/203 Powered Anode Indicators:

• LED

202-

One (1) fl ash/second (approx.), indicates
there is power to the anode circuit.

• LED

203-

Two (2) fl ashes/second (approx.), indicates
proper operation.
Four (4) fl ashes/second (approx.),
indicates a fault.

Figure 9

LED
203 / 202

Section D

Section “C” of Control Board (con’t)