Trane Round In/Round Out Manual de Instalação descarregar pdf (Página 5)

VAV-SVN09B-EN 5

General Information

This manual describes the installation of the Round In

Round out (VRRF) VAV units with mounting and

recommended wiring of the VRRF units.

For controls setup and operation parameters, reference

the following literature:

• UCM 4.2: VAV-SVX01*-EN

• VV550: CNT-SVX17*-EN

• UC400: VAV-SVX07*-EN

• UC210: BAS-SVX62*-EN

The VRRF can be used in new installations as well as

retrofitting older style units.

Note: Not all older-style Trane VAV units can be

retrofitted with the VRRF and should be

researched before ordering the VRRF on a case-

by-case basis.

The VRRF can be ordered with or without DDC controls. If

ordered with controls, the unit would have either a UCM

4.2, VV550 or UC400/UC210 DDC control module.

The controls will be factory mounted to the RIRO damper

and field installed to existing system. How this installation

takes place will be dependent on if it is a new installation

or if the unit is being retrofitted to a pre-existing unit type.

Receiving and Handling

The unit may be shipped from the factory in a number of

different ways. Upon receiving the equipment, complete

the following:

• Locate the nameplate and refer to the model and sales

order number and check that the correct units have

been delivered.

• Check that the facility can provide the correct voltage to

the unit according to the name plate.

• Inspect the control enclosure if applicable and the air

damper casing for dents or punctures.

• Verify the options have been included, such as

controls, water valve, adapters, and relays kits which

include wiring harnesses.

• Manually rotate the damper actuator to assure that

there are no obstructions within the housing.

• Claims for in-transit damage must be filed

immediately with the delivery carrier.

• Locate and verify that the correct zone sensors are with

the order.These will be marked with an orange

“Accessories Enclosed” label. Store in a secure

location until needed. Accessories lost at the jobsite

are NOT covered byTrane’s warranty.

• If a discrepancy occurs between what was ordered and

what is received, contact you localTrane

representative immediately.

• Read the appropriate section in this manual for

installation procedures prior to actual starting of

equipment.

Upon receiving the equipment, please inspect each unit

and components for external or internal damage. Refer to

the bill of lading to insure all equipment and accessories

have been received. Contact your localTrane sales

representative and notify the trucking company

immediately of any short ship or damaged equipment.

Unit Information

The basic unit consists of a sheet metal casing with an air

damper which is used to modulate the air being delivered

into the occupied zone.The unit is designed to modulate

either cooling or heating air between the temperatures of

40 and 140 degrees F. Primary air enters the air valve

through its round inlet and sent into the air valve cylinder

and exits from the round outlet.This air could be sent strait

to the diffusers or in conjunction with a VAV unit that is

being retrofitted.

The basic unit can be ordered for vertical or horizontal

airflow.The options for a basic unit that are available are

power fuse, transformer, disconnect, adapter, DDC

controller, and Wireless Zone sensor. Other options

available if retrofitting electric heat or hot water units

would be relay kits to support the control of electric heat

strips.We can also include two-position or modulating hot

water valves for control of hot water in the reheat coil.

When looking to retrofit a fan powered unit, you could also

order the relay kit(s) with the wiring harness as an option.

All types of DDC controllers for theVRRF have 24VAC triac

outputs.The UC400 and UC210 also have relay-based

binary outputs.The outputs are available for retrofitting a

single duct or a fan-powered unit. A single-duct unit could

use the outputs available to control three (3) stages of

electric heat, modulating hot water valve or two position

hot water valve. For a fan-powered unit, the controller

would use one output for the fan and the other two to

control two stages of electric heat. If it had a hot water coil,

then the two extra outputs could be used to control a

modulating hot water valve or a two-position hot water

valve.These re-heat units are used primarily to reheat air-

to-zone temperature when the load in the occupied space

is low. Primary air is modulated through the VariTrane™

air valve by rotating the damper blade. All air valves have

a round inlet for easy fit-up with incoming ductwork.

Agency Listings Compliance

• UL listed

• AHRI 880 certified

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