Venmar 1200 cfm Manual do Utilizador descarregar pdf (Página 24)

Page 24

Options

Dirty Filter Sensor

The dirty filter sensor option will monitor the

pressure across the filters and will close contacts

when dirt restricts the airflow to the setpoint. The

connections at the external terminal interface

will close and can be used to control a remote

light or alarm to signal dirty filters.

The sensor has the following features:

• Pressure setpoint is factory set.

• Polyester film diaphragm responds to pressure changes as

low as 2.5mm WC.

• Equipped with male quick connect terminals.

• Connection ports accept standard .2" [5mm] rubber or plastic

tubing.

• In the vertical plane the mounting orientation is free.

Specifications:

Electrical Rating:

1.5 Amp. 220/240 VAC (resistive)

Ambient Temperature Range:

14°F to 158°F [-10°C to +70°C]

Ambient Humidity Range:

5 - 90% RH at 104°F [40°C] non-condensing

Switch Action: SPDT

Terminals: 1/4" [6mm] quick connect

Pipe Connection: 1/4" [6mm] outside diameter

Mounting: Within 10% of vertical

Material:

Diaphragm - polyester film

Switch mounting plate - zinc-coated steel

Housing - PET

Maximum Sustained Pressure: 60mm WC

External Finish - Paint

The following options for external finish are available for

certain Venmar CES heat recovery ventilator units:

• galvanized metal, non painted.

• baked-on, polyester, grey or white pre-painted surface on

galvanized metal.

• corrosion resistant package offers powder coated surface

on the exterior and interior of the galvanized steel cabinet to

prevent corrosion.

Not all external finish options are available for all units. See

the Physical Data - Nomenclature Options chart on page 3 for

specific unit information.

Dampers

Damper options are available in pressure open/gravity

closed, power open/power closed or power open/spring closed.

Backdraft Damper

Standard backdraft dampers have the following features:

• All aluminum construction provides a long, rust-free

operational life.

• Blades are extruded aluminum profiles and secure-

ly linked via a large diameter aluminum linkage rod.

• Silicone seals are provided as standard to ensure

sealing longevity and remain flexible down to

-40°F/°C.

• Self-lubricating celcon bearings ensure a maintenance-free

and long-cycle life.

• Backdraft dampers are designed for operation in tempera-

tures ranging between -40°F and 212°F [-40°C and 100°C].

• Air leakage through a 24" x 24" [610 x 610mm] backdraft

damper does not exceed 20 cfm/sq.ft. against 1" w.g.

[0.25kpa] differential static pressure at standard air.

Non Insulated Damper

Non-insulated dampers have the following features:

• Extruded aluminum blades and frame contribute to a long,

rust-free operational life.

• Blade gaskets are extruded EPDM elastomer.

Frame seals are extruded TPE thermoplastic.

• Seals provide outstanding dynamic fatigue

resistance that ensures sealing longevity.

• Seals provide excellent resistance to weath-

ering, compression set and heat.

• Bearings are comprised of a celcon inner

bearing fixed to a 7/16" [11mm] aluminum

hexagon blade pin rotating within a polycar-

bonate outer bearing inserted in the frame.

• Dual bearing system is self-sealing, self-lubricating and

non-absorbent.

• Dampers are designed for operation in temperatures

ranging between -40°F and 212°F [-40°C and 100°C].

• Air leakage through a 48" x 48" [1220 x 1220mm] damper

does not exceed 10.3 cfm/sq.ft. against 4" w.g. [1kpa]

differential static pressure at standard air.

• Pressure drop of a fully open 48" x 48" [1220 x 1220mm]

damper does not exceed 0.02" w.g. [0.005kpa] at 1000 fpm

[5.08m/s].

Insulated Damper

Insulated dampers have the following features:

• Extruded aluminum blades and frame contribute to a long,

rust-free operational life.

• Thermally insulated blades are constructed

using an aluminum shell, injected with

polyurethane foam.

• Insulated blades have an insulating factor of

R-2.29 and a temperature index of 55.

• Blade gaskets are extruded EPDM elastomer.

Frame seals are extruded TPE thermoplastic.

• Non-metallic blade and side seals minimize

thermal bridging across blade surfaces.

• Seals provide outstanding dynamic fatigue resistance that

ensures sealing longevity.

• Bearings are comprised of a celcon inner bearing fixed to a

7/16" [11mm] aluminum hexagon blade pin rotating within a

polycarbonate outer bearing inserted in the frame.

• Dual bearing system is self-sealing, self-lubricating and

non-absorbent.

• Dampers are designed for operation in temperatures ranging

between -40°F and 212°F [-40°C and 100°C].

• Air leakage through a 48" x 48" [1220 x 1220mm] damper

does not exceed 4.12 cfm/sq.ft. against 4" w.g. [1kpa] differ-

ential static pressure at standard air.

• Pressure drop of a fully open 48" x 48" [1220 x 1220mm] damper

does not exceed 0.03" w.g. [0.0075kpa] at 1000 fpm [5.08m/s].

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