Trane Round In/Round Out Manual de instalación descargar pdf (Pagina 10)

Installation

10 VAV-SVN09B-EN

removing the old tubing from the airflow switch

and using the black tubing provided in the adaptor

kit. Connect the airflow switch to the high pressure

port of the VRRF unit.There is a tee located in the

VRRF unit control box for this.

Installation Option

Original Ductwork

1. Make sure the existing VAV unit has its air valve set to

the open position allowing airflow.With a DDC unit this

can be done with Summit (BMTW-SVN01*-EN),

Rover™ (EMTX-SVX01*-EN).The analog unit can have

the damper driven open by removing the pneumatic

tubing from the flow ring and adjusting the analog

sensor thumbwheel to its lowest possible setting. See

programming guide for your particular access tool.

With a pneumatic system, you would release the

actuator pressure inlet and cap pneumatic tubing.This

will open the Normally Open Valve and allow airflow.

2. Ensure power has been removed from pre-existing

unit and it has been locked and tagged out.

3. If not already done, begin removing about four inches

of insulation from the ductwork where the inlet and

outlet of the Round In / Round Out (VRRF) will connect.

Note: Do not disconnect flow ring tubing. It may need to

stay attached for proper VRRF unit operation.

4. Hang the VRRF with straps (See Figure 1 for Install

and Figure 2 for weights)

5. Connect inlet ductwork to VRRF and screw in self

tapping screws.

6. Seal around flange of ductwork and VRRF with duct

sealent.

7. Connect outlet ductwork to VRRF and screw in self

tapping screws.

8. Seal around flange of ductwork and VRRF with duct

sealent.

Existing Installation Wrap-Up

1. After all connections are made (for either using the

adapter or original ductwork), check to ensure the

entire ductwork is air tight. Apply duct sealer as

necessary.

2. Cut to specifications on your unit, as shown in Figure 8,

p. 11 and Table 3, p. 11 . Cut “slits” in the insulation for

the flow tubes and brackets. Secure with duct tape.

Encase VRRF with insulation. See

Figure 7, p . 10.

3. Use care not to damage the flow tubes when making

ductwork connections or insulating.

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

Fiberglass Wool!

Product contains fiberglass wool. Disturbing the

insulation in this product during installation,

maintenance or repair will expose you to airborne

particles of glass wool fibers and ceramic fibers known

to the state of California to cause cancer through

inhalation. You MUST wear all necessary Personal

Protective Equipment (PPE) including gloves, eye

protection, mask, long sleeves and pants when

working with products containing fiberglass wool.

Exposition to glass wool fibers without all necessary

PPE equipment could result in cancer, respiratory, skin

or eye irritation, which could result in death or serious

injury.

WARNING

Heavy Objects!

Ensure that all the lifting equipment used is properly

rated for the weight of the unit being lifted. Each of the

cables (chains or slings), hooks, and shackles used to

lift the unit must be capable of supporting the entire

weight of the unit. Lifting cables (chains or slings) may

not be of the same length. Adjust as necessary for even

unit lift. Other lifting arrangements could cause

equipment or property damage. Failure to follow

instructions above or properly lift unit could result in

unit dropping and possibly crushing operator/

technician which could result in death or serious injury.

Figure 7. VRRF insulation

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Trane Round In/Round Out Manual de instalación Pagina 10

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