Data sheet |
ETS |
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Controller For Snow Melting Systems |
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Application: |
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ETS is a 24 volt snow melting controller capable |
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of switching an outdoor heating system on/o |
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based on temperature and precipitation. Snow |
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melt controller applications can include snow |
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removal in walkways, steps, driveways, garage |
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entrances, gutters, loading platforms or other |
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locations where ice and snow accumulation is |
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a problem. ETS detects outdoor temperature, |
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ground temperature, and moisture, and |
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energizes electrical relays when snow or ice |
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occurs. The system’s heat source can be either |
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hydronic or electric heating cables (with the use |
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of an external relay). |
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Features: |
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Electronic on/o control |
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Detects moisture and temperature, or |
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temperature only |
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Choice of ground, gutter, or outdoor sensor |
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Several sensors can be connected to the |
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controller |
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Selection of either temperature or |
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temperature/moisture activation of controller
Ordering Information: |
Code No. |
Description |
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ETS-3551 |
ETS-3551 Snow melting system controller, 24V low voltage version |
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ETOG-550 |
ETOG-550, Ground sensor for detection of slab temperature and moisture, |
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33ft (10m) cable |
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ETSR5500 |
ETSR5500, Gutter sensor for detection of moisture, 33ft (10m) cable |
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ETF-744/99 |
ETF-744/99, Outdoor sensor for detection of temperature |
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VDRKA122 © Danfoss 12/10 |
1 |
Data sheet
Technical Data:
ETS
Controller For Snow Melting Systems
ETS-3551 Snow/Ice Melting Controller
Mounting |
Interior wall surface |
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Dimensions |
3.4” x 2.1” x 2.3” (L x W x D) |
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Supply voltage |
24 Vac ±10% |
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Output relays |
1 relay: 10-A, (potential free contacts) |
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On/O di erential |
0.6°F (0.3°C) |
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Ambient temperature |
+32° to 122°F (0° to +50°C) |
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Temperature range |
+32°F to 41°F (0° to +5°C) |
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Detection mode |
1) Moisture & temperature sensing |
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2) Temperature only |
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Scale Adjustment |
Fine tuning of temperature setup ± 9°F (± 5°C) |
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ETOG-550, Ground Sensor |
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Detection |
Moisture |
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Mounting |
Flush to surface |
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Cable length |
33ft (10m) |
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Ambient temperature |
-4 to 158°F (-20 to 70°C) |
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Dimensions |
H: 1.25”, ± 2.4” (H: 32mm, ± 60mm) |
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ETSR5500, Gutter Sensor |
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Detection |
Moisture |
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Mounting |
Gutter or downspout, used in |
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combination with ETF-744/99 |
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Cable length |
33ft (10m) |
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Ambient temperature |
-4° to 158°F (-20° to 70°C) |
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Dimensions |
4.15” x 1.2” x 0.5” (105 x 30 x 13mm) |
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L x W x H |
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ETF-744/99, Outdoor Sensor |
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Detection |
Air temperature |
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Mounting |
Exterior wall |
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Ambient temperature |
-4° to 158°F (-20° to 70°C) |
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Dimensions |
4.15” x 1.2” x 0.5” (105 x 30 x 13mm) |
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L x W x H |
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2 |
VDRKA122 © Danfoss 12/10 |
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