S-Tech STCH-1000 - Specifications; Recommended Detector Locations

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2. SPECIFICATIONS
METHANE ALARM LEVEL
POWER SOURCE
10 – 25% L.E.L.
120VAC, 60Hz, 5 WATTS (FOR MODELS
STCH-1000, STCH-1000LC, STCH-
1000HW, STCH-1000HWR)
12VDC, 5 WATTS (FOR MODEL PSM-
011)
OPERATING TEMPERATURE
ALARM SOUND LEVEL
MINIMUM ALARM TIME
DETECTION FREQUENCY
RELAY RATED INDUCTIVE LOAD
RELAY MAX. SWITCHING POWER
32°F (0°C) TO 104°F (40°C)
85 dB AT 10 FEET
5 MINUTES
SAMPLING EVERY SECOND
0.2A at 125VAC; 1A at 30VDC
25VA, 30W
3. RECOMMENDED LOCATIONS OF DETECTORS:
• Install at least one natural (methane) gas detector on every floor level (see Figure
1).
• Install the detector close to every place that gas operated appliances are installed
(see Figure 1).
• Since natural (methane) gas is lighter than air (1:0.56), the greatest concentration
of gas will be immediately under the ceiling. Mount detectors on the wall with the
top edge of the detector at a minimum of 6” (15cm) and a maximum of 12” (30.5
cm) below the ceiling, and at least 2 feet (60.1 cm) from any corner (see Figure 2).
• If the ceiling is sloped or higher than 8.5 feet (2.6 m), please ask your local Gas
Company for advice about proper installation.
BEDROOM
BEDROOM
KITCHEN
DINNING
LIVING ROOM
BEDROOM
+
+
BEDROOM
BEDROOM
BEDROOM
+
+
+
Detector placement
for minimum protection.
Additional detector
location for added protection.
FIGURE 1
Never Here
Side Wall
Ceiling
FIGURE 2
Acceptable Here
Dead Air
Space
12 IN
6 IN
6 IN
GAS
HEATER
DRYER
+
+
GAS OVEN