Trane Round In/Round Out Installationshandbuch PDF herunterladen (Seite 23)

Installation

VAV-SVN09B-EN 23

3. Field wire actuator 24VAC control voltage toVRRF DDC

controller. See Control Diagrams:

a. Figure 44 and Figure 45 for the UCM 4.2

b. Figure 46 and Figure 47 for the VV550

c. Figure 48 and Figure 49 for the UC400

d. Figure 50 and Figure 51 for the UC210

Analog and DDC Units:

Single Duct Electric Heat

1. Remove Power and Lock and Tag out unit if it hasn't

been done already.

2. Disconnect control wiring from heat relay(s) and field

wire cable(s) from kit by connecting heat relay coil(s) to

VRRF DDC controller binary output connections using

cable. See

Figure 16, p. 28 and Control Diagrams:

a. Figure 44 and Figure 45 for the UCM 4.2

b. Figure 46 and Figure 47 for the VV550

c. Figure 48 and Figure 49 for the UC400

d. Figure 50 and Figure 51 for the UC210

Analog and DDC Units:

Single Duct Hot Water

Note: Original hot water valve actuator may be

compatible with newVRRF DDC controller. If this is

true, skip the next two steps.

1. Isolate hot water valve and remove valve from system,

if necessary.

2. Install Proportional orTwo-Position hot water valve.

Ensure that the piping is correct to the new style valve.

3. Field wire actuator 24VAC control wiring to VRRF DDC

controller. See Control Diagrams:

a. Figure 44 and Figure 45 for the UCM 4.2

b. Figure 46 and Figure 47 for the VV550

c. Figure 48 and Figure 49 for the UC400

d. Figure 50 and Figure 51 for the UC210

Analog and DDC Fan Powered:

Fan control

1. Remove Power and Lock and Tag out unit if it hasn't

been done already.

2. Disconnect control wiring from fan relay(s) and field

wire cable(s) from kit by connecting fan relay coil(s) to

VRRF DDC controller binary output connections using

cable. See

Figure 13, p. 24, Figure 14, p. 26 and Control

Diagrams:

a. Figure 44 and Figure 45 for the UCM 4.2

b. Figure 46 and Figure 47 for the VV550

c. Figure 48 and Figure 49 for the UC400

d. Figure 50 and Figure 51 for the UC210

Note: Some Analog units used a duct pressure switch to

enable/disable fan. See below for change out to

retrofit using VRRF DDC controller.

Analog Fan-Powered:

Duct Pressure Switch only Fan Control

1. Remove Power and Lock and Tag out unit if it hasn't

been done already.

2. Disconnect duct pressure switch for fan Control in fan

control enclosure and replace it with relay from kit.

3. Connect line voltage wires to relay Normally Open

contacts using existing wires that were connected to

duct pressure switch, if possible.

4. Control voltage will be field wired from relay coil to

VRRF DDC controller binary output connections using

cable. See

Figure 15, p. 27 and Control Diagrams:

a. Figure 44 and Figure 45 for the UCM 4.2

b. Figure 46 and Figure 47 for the VV550

c. Figure 48 and Figure 49 for the UC400

d. Figure 50 and Figure 51 for the UC210

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote

disconnects before servicing. Follow proper lockout/

tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power

before servicing could result in death or serious injury.

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote

disconnects before servicing. Follow proper lockout/

tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power

before servicing could result in death or serious injury.

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote

disconnects before servicing. Follow proper lockout/

tagout procedures to ensure the power can not be

inadvertently energized. Failure to disconnect power

before servicing could result in death or serious injury.

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