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Description
Control Description: The tekmar Boiler Control 263 can control the supply water temperature from a single modulating boiler or up to 2 on / off stages based on outdoor temperature, domestic hot water requirements, or setpoint requirements. A large easy to read display provides current system temperatures and operating status. The control has an internal setback timer, which can have 2 events per day on a 24 hour, 5-1-1 day or 7 day schedule. Literature + D 263, A 263+s, D 001, D 070 Control + Microprocessor PID control; This is not a safety (limit) control Packaged Weight + 3.3 lb. (1500 g), Enclosure A, blue PVC plastic Dimensions + 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm) Approvals + CSA C US, meets ICES & FCC regulations for EMI/RFI Ambient Conditions + Indoor use only, 32 to 122+F (0 to 50+C), < 90% RH non-condensing Power Supply + 115 V (ac) +10% 50/60 Hz 600 VA Relay Capacity + 230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA Modulation Output + 0-20 mA / 4-20 mA (up to 1000 Ω load) Demands + 20 to 260 V (ac) 2 VA Sensors Included + NTC thermistor, 10 kΩ @ 77+F (25+C +0.2+C) +=3892 Outdoor Sensor 070 and Universal Sensor 071, 500 Ω Resistor Optional Devices + tekmar type #: 071, 076, 077, 078
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Specs
Application:
Multiple Boilers
Stages:
2 Boiler
Width (Inches):
7-9/16"
Height:
6-5/8"
Programmability:
7 Day
5-1-1 Day
24 Hour
User Interface:
Push Button
LCD
Voltage:
240v
Depth (Inches):
2-13/16"
Ambient Conditions:
Indoor Only: 32°-122°F < 90% RH non-condensing
Power Supply:
115V (ac)
Relays:
230 V (ac) 5 A-1/3 hp- pilot duty 240 VA
Max Temp (F):
266°F
Min Temp (F):
-76°F
Temperature Range (F):
-76°-266°F
Control:
Microprocessor PID control
Weight (lbs):
3.3 lbs
Demands:
20 to 260 V (ac) 2 VA
Sensors:
NTC Thermistor 10 k ohm @ 77°F
Output:
0-20 mA / 4-20 mA (up to 1000 ohm load)
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