Trane VUVE Vertical Classroom Manual de Instalação descarregar pdf (Página 9)

General Information

UV-SVN03F-EN 9

Face and Bypass Actuator (Option). The face and

bypass damper actuator incorporates a direct couple

design. It provides electronic protection against overload.

A limit switch is not included, nor required as part of the

design. When reaching the damper end position, the

actuator automatically stops. The gears can be manually

disengaged with a button on the housing. Refer to Table 2,

p. 9 for face and bypass actuator specifications.

Modulating Water Valves (Option). The modulating

control valve provides optimum control of hot and chilled

water flow in various heating and cooling applications.

They are designed to provide sinusoidal valve actuator

travel and operate silently, resisting water hammer.

The actuator on the valve is a 24V, 3-point floating type.

Refer to Table 3 for modulating water valve specifications.

Isolation Valve (Option). The isolation valve is a two

position 24V, spring return type valve. It provides added

control in heating and cooling applications when used in

conjunction with the face and bypass damper.

On heating coils, and two-pipe changeover applications,

the valve is normally open to help prevent the coil from

freezing in-case of power loss.

For cooling, the valve is normally closed and opens when

there is a call for cooling. Refer to Table 4 , p. 9 for isolation

valve specifications.

Table 1. OA/RA actuator specification

Power supply 24 Vac ±20% 50/60 Hz

24 Vac ±10%

Power consumption Running: 2.5 W

Holding: 1 W

Transformer sizing 5 VA (class 2-power source)

Overload protection Electronic throughout 0° to 95° rotation

Control signal 2 to 10 Vdc

3-point floating with Trane controls

Angle of rotation Maximum 95°

Adjustable with mechanical stop

Torque 35 in·lb

Direction of rotation Spring return reversible with cw/ccw

mounting

Position indication Visual indicator, 0° to 95°

Noise level Running: 30 dB

Table 2. Face-bypass actuator specification

Table 3. Mod. water valve specification

Table 4. Isolation valve specification

Power supply 24 Vac ± 20% 50/60 Hz

24 Vac

± 10%

Power consumption 2 W

Transformer sizing 3 VA (class 2-power source)

Angle of rotation Maximum 95-degree

Adjustable with mechanical stop

Torque 35 in./lb

Direction of rotation Reversible with switch L/R

Position indication Clip-on indicator

Manual override External push button

Noise level Less than 35 dB

Control signal 3-point floating

Power supply 24 Vac - 50/60 Hz

Power consumption 4 W

Max. duty cycle 15%

Operating ambient temp. 0 to 65°C

32 to 150°F

Min./max. fluid temp. 1 to 95°C

34 to 203°F

Operating pressure

differential

Max. - 4 bar (60 psi)

Pressure rating Static - 20 bar (300 psi)

Burst - 100 bar (1500 psi)

Flow characteristic Linear

Power supply 24 Vac - 50/60 Hz

Power consumption 5 W

Max. fluid temp. 94°C

200°F

Min. fluid temp. 1°C

34°F

Max. operating pressure 300 psi

Max. close-off pressure 1/2 in. = 30 psi

3/4 in. = 20 psi

1 in. = 15 psi

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