Description
The Tekmar 256 Boiler Control is a microprocessor-based control designed to regulate the supply water temperature from a single boiler based on the outdoor temperature. To avoid boiler short cycling and large temperature swings, the 256 is able to continuously adjust the boiler differential. The Tekmar 256 includes control functions such as Warm Weather Shut Down (WWSD) and Minimum Boiler setting. The control has a liquid crystal display (LCD) that normally displays the Boiler Supply temperature, but can display other temperatures and settings.
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Specs
Application:
Single Boiler
Stages:
1 Boiler
Width:
2-7/8"
Height:
4-3/4"
User Interface:
LCD
Push Button
Voltage:
24v
Depth (Inches):
7/8"
Ambient Conditions:
Indoor Only: 32°-104°F < 90% RH non-condensing
Power Supply:
24 V (ac)
Class 2
Relays:
240 V (ac) 5 A-1/6 hp
Temperature Range (F):
-60°-266°F
Max Temp (F):
266°F
Min Temp (F):
-60°F
Control:
Microprocessor PID control
Weight (lbs):
1.3 lbs
Demands:
24 V (ac) 2 VA
Sensors:
NTC Thermistor 10 k ohm @ 77°F
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