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CMX 2004 - Plumbing & HVAC

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tekmar’s Complete Line of Multiple Boiler<br />

Controls with Outdoor Reset & DHW Control<br />

Boiler Control 265<br />

• Up to 3 Modulating Boilers<br />

• 0-20 mA or 4-20 mA Outputs<br />

• Parallel or Sequential Modulation<br />

Boiler Control 268<br />

• Up to 9 On/Off Stages<br />

• 1, 2, 3 or 4 Stage Boilers<br />

Boiler Control 264<br />

• Up to 4 On/Off Stages<br />

• 1, 2, 3 or 4 Stage Boilers<br />

Common Features<br />

• Characterized Heating Curves<br />

• Pump Exercising<br />

• Supply and Return Sensors<br />

• Automatic Boiler Differential<br />

• Equal Run-Time Rotation<br />

• Fixed Last Rotation<br />

• Boiler Mass Setting<br />

• Fire Delay Setting<br />

• Fixed Lead Rotation<br />

• Combustion Air or Alarm Contact<br />

• Boiler Running Hours<br />

• Setpoint Priority Operation<br />

• DHW Pump or Valve<br />

Operation<br />

Domestic Hot Water Modes<br />

• Parallel or Primary-<br />

Secondary Piping<br />

• DHW Priority<br />

Boiler Pump Operation<br />

• Individual boiler pumps provide pre-purging and post-purging of each boiler<br />

External Input (265 and 268)<br />

• For 0 - 10 V (dc) signal from a Building Automation System (BAS)<br />

visit the tekmar web site at www.tekmarcontrols.com<br />

tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A.<br />

Head Office: 5100 Silver Star Road, Vernon, B.C. Canada, V1B 3K4 Tel. (250) 545-7749 Fax. (250) 545-0650<br />

Circle Number 122 for More Information

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