Magnitude Chiller Unit Controller BACnet Communication Module (MS/TP, IP, Ethernet)

Magnitude Chiller Unit Controller BACnet Communication Module (MS/TP, IP, Ethernet)

8

Installation

The following section describes how to field install a new BACnet Communication Module or replace an existing BACnet Communication Module on the Magnitude Chiller I/O backplane (i.e. unit controller main circuit board) so that it can be incorporated into the BACnet network.

!

CAUTION

Electrostatic discharge hazard. Can cause equipment damage.

This equipment contains sensitive electronic components that may be damaged by electrostatic discharge from your hands. Before you handle a communications module, you need to touch a grounded object, such as the metal enclosure, in order to discharge the electrostatic potential in your body.

Contents of the BACnet Communication Module Kit

The following is the list of items included in the field-installed kit:

 The BACnet Communication Module

 BACnet MS/TP Network connector (attached to communication module)

 J8 jumper (attached to communication module)

 Two screws

 Installation Manual – IM 963

Installing a new BACnet Communication Module

Follow these steps to install a new BACnet Communication Module on the Magnitude Chiller I/O backplane.

!

WARNING

Electric shock hazard. Can cause personal injury or equipment damage.

This equipment must be properly grounded. Only personnel knowledgeable in the operation of the equipment being controlled must perform connections and service to the unit controller.

1. Remove power from the Magnitude Chiller Unit Controller.

2. Connect the BACnet Communication Module to the upper left corner of the chiller I/O backplane, in the area labeled BAS Interface Board (see Figure 1). Carefully align the holes on the communication module with the two standoffs attached to the chiller I/O backplane.

!

CAUTION

Carefully align the holes on the communication module with the standoffs on the chiller

I/O backplane.

Powering up the controller with the communication module installed upside down can cause damage to the communication module.

3. Using the two screws that came with the communication module kit, attach the communication module to the standoffs located on the chiller I/O backplane.

4. Connect the communication module to the network (see Figure 2 for location of network connection).

5. Apply power to the unit controller.

IM 963-1

Replacing an Existing BACnet Communication Module

Follow these steps to remove an existing BACnet Communication Module from the chiller I/O backplane and replace it with a new BACnet Communication Module.

!

WARNING

Electric shock hazard. Can cause personal injury or equipment damage.

This equipment must be properly grounded. Only personnel knowledgeable in the operation of the equipment being controlled must perform connections and service to the Magnitude Chiller Unit

Controller.

1. Remove power from the unit controller.

2. Locate the communication module. It is situated at the upper left corner of the chiller I/O backplane (see Figure 1).

3. Remove the network cable connector from the communication module.

4. Remove the two screws holding the communication module in place.

5. Grasp the communication module and carefully pull it from the chiller I/O backplane.

6. Install the new communication module (see Steps 1-3 from previous section).

7. Re-attach the two screws to secure the communication module to the chiller I/O backplane.

8. Insert the network cable connector into the communication module.

9. Apply power to the unit controller.

IM 963-1 9

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