Siemens 125-699 owner manual Controller LED Indicators, Temperature Sensors, Actuators

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual

Controller LED Indicators

The controller has several Light Emitting Diode (LED) indicators. (Figure 1). Table 2 lists the LED types and what they indicate.

		Table 2. Controller LEDs.
LED Type	Label	Indication
	(if present)*
DO	LED 1–LED 8	Indicates the ON/OFF status of the DO associated with it. A
		glowing LED indicates that the DO is energized.
Receive	RX	Indicates , when flashing, that the controller is receiving
		information from the field panel.
Transmit	TX	Indicates, when flashing, that the controller is transmitting
		information to the field panel.
Basic Sanity	BST	Indicates, when flashing ON and OFF once per second, that
Test		the controller is functioning properly.

* Some LED labels may be hidden by the controller cover.

Temperature Sensors

An electronic Room Temperature Sensor (RTS) or an optional auxiliary temperature sensor may be used with the Siemens BACnet Heat Pump Controller—Multi-Stage.

Room Temperature Sensor

The controller room temperature sensor connects to the controller by means of a cable preterminated at both ends with a 6-conductor RJ-11 plug-in connector. See Figure 1 for the location of the RTS/Human-Machine lnterface (HMl) port.

Mixed Air Temperature Sensor

The mixed air temperature sensor is a 10K Ω thermistor that connects to the controller at Al 5.

For more information about Siemens temperature sensors, contact your local Siemens Building Technologies representative.

Actuators

The actuator used with the Siemens BACnet Heat Pump Controller—Multi-Stage may be an optional floating control or 0 to 10V spring return electronic damper motor that is powered through the controller to position an outside air damper.

For more information about Siemens actuators, contact your local Siemens Building Technologies representative.

4 Siemens Building Technologies, Inc.