Warmlyyours SCV-DUAL Manual do Utilizador descarregar pdf (Página 14)

Snow Switch

Model LCD–8 Aerial Snow Controller, 100 – 240 VAC

24782 Rev. A 03/13 (800) 234-4239 http://www.networketi.com 13 of 14Environmental Technology, Inc.

SPECIFICATIONS

General

Area of use Nonhazardous locations

Approvals

109R

Type 873

Temperature Regulating Equipment

Enclosure

Protection NEMA 3R

Cover attachment Polycarbonate with machine screws

Entries 1 x 3/4" entry (bottom)

Material Polycarbonate

Mounting Pole mount

Dimensions 4.6" (W) x 6.1" (H) / 117mm (W) x 155mm (H)

Control

Supply voltage ETI PN 24619: 100VAC – 240VAC; 50/60 Hz

ETI PN 24781: 24VAC; 50/60 Hz

Load 3 amp maximum inductive

16 amp maximum resistive

Heater Hold-On timer 0, 1, 3 (default) or 5 hours; conﬁgured by magnetic reed switch

Set point temperature Off (moisture only), 36°F, 38°F (default), 40°F;

conﬁgured by magnetic reed switch

Interface

Status indicators SUPPLY (green): Power on; will ﬂash while in conﬁguration mode

HEAT (yellow): Heating cycle in progress

Wire and Cable Ratings

Power cable Size for heater load (16 amps maximum)

Heater cable Size for maximum heater load

Environmental

Operating temperature –40°F to 104°F (–40°C to 40°C)

Storage temperature −67°F to 167°F (−55°C to 75°C)

Post –Installation LCD-8 Test

Most problems result from installation errors. Before testing, verify that unit is prop-

erly installed.

1. Connect power to snow melting system. Wait 15 seconds; system should

not actuate.

2. Using ice water or other cooling agent, cool ambient air temperature sensor

to below 38°F (3.3ºC); system should not actuate. Apply moisture to moisture

sensing grid. System should actuate in less than 15 seconds.

3. Dry moisture sensing grid. Disconnect power to snow melting system. Wait 1

minute, then reconnect power. If system actuates, ensure sensing grid is dry

and ambient air temperature is above 38°F (3.3°C), then repeat this step.

109R

Type 873

Temperature Regulating Equipment

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