Engineered Comfort Fan Coil Controller EZstat Spécifications télécharger pdf (Page 9)

Installation and Operation Manual

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Fan Coil Controller – EZstat

EC-EZstat

Date: 9-2014 Supersedes: NEW

Engineered Comfort reserves the right to change any information concerning product or speciﬁcation without notice or obligation.

Page 9 of 36

Water temperature sensor

Connect a 10kΩ, Type III thermistor temperature probe (Nailor part #H1‑1764B) to the water temperature (WST) input.

The input includes the internal pull‑up resistor. Follow the instrucons supplied with the sensor for installaon.

 4.3 ConnecngOutputs

The EZstat outputs are congured for specic applicaons.

• Depending on the conguraon, the EZstat outputs are designed for either 24 VAC or 0‑10 VDC loads.

• The outputs may represent analog or digital signals.

Fig. 4-3 Wiring for a water temperature sensor

Improperly connecng loads or equipment to output terminals may damage the equipment.

Connect only as shown in the following diagrams or applicaon drawings.

WST

GND

  Connecngtoathree-speedfan

The following diagram shows the connecons for a three‑speed fan. The fan circuits must be a 24 VAC pilot duty only.

• For a single‑speed fan, use only the FAN‑L connecon.

• For a three‑speed, use FAN‑L, FAN‑M, and FAN‑H

Fig. 4-4

Conneconstoa

three-speed fan

COM

FAN-L

FAN-H

FAN-M

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Engineered Comfort Fan Coil Controller EZstat Spécifications Page 9