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Compare tekmar Boiler and Mixing Controls

Intelligent control for improved comfort and energy efficiency.

Combine outdoor reset with optional equipment protection features, support for multiple water temperatures, mixing devices, and tekmarNet communication for complete hydronic system control.

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System Requirements

256

260

261

279

356

360

361

374

400

401

402

403

422

423

Number of Water Temperatures

Flexibility for custom applications

1

1

1

-

1

1

1

3

1

1

2

2

1&1*

4*

Number of Boilers

Outdoor Temperature Reset control

1

1

2

1

1

1

1

2

1+

1+

1+

1+

1

2

Boiler Type

On/Off (O) Modulating (M) or Steam (S)

O

O

O

S

O

O

O

O

O/M

O/M

O/M

O/M

O/M

O/M

Multi-Stage Boiler Expansion via EMS

Control of additional boilers

-

-

-

-

-

-

-

-

DHW Through Valves (V) or Pumps (P)

Domestic hot water operation

-

V/P

-

-

-

-

-

V/P

P

P

P

P

P

V/P

Setpoint Operation

Hot water for hot-tubs, pools & snowmelt

-

-

-

-

-

-

Mixing

Protects boiler

-

-

-

-

-

-

*

Zone Control with Valves (V) or Pumps (P)

Up to four onboard zones

-

-

-

-

-

-

-

-

V

P

V

P

-

-

Features & Benefits

256

260

261

279

356

360

361

374

400

401

402

403

422

423

Outdoor Temperature Reset

Adjust water temperature based on outdoor temperature for energy savings

Warm Weather Shut Down

Shut down heating systems in warmer weather

Automatic Differential

Manage boiler run times to reduce cycling

-

Boiler Return Protection

Limits the amount of cool return water to boiler

-

-

-

-

-

-

DHW Priority

DHW has priority over space heating

-

-

-

-

-

-

Pump Exercising

Briefly run pump to prevent seizing

-

-

tekmarNet® Communication - 2 or 4 Wire

Network communication provides greater functionality

-

-

-

-

-

-

-

-

2

2

2

2

2/4

2/4

Indoor Temperature Feedback

Indoor zones report exact heating needs to the system control

-

-

-

-

-

-

-

Zone Synchronization

Coordinate heat demands, minimize equipment cycling

-

-

-

-

-

-

-

-

Remote Monitoring

Access tekmarNet® systems via the internet with a Gateway 486

-

-

-

-

-

-

-

-

Integrate with Home Automation Systems

Connect to home automation systems with a Gateway 482

-

-

-

-

-

-

-

-

System Wide Control

Add a User Switch to quickly adjust all networked thermostat settings

-

-

-

-

-

-

-

-

 

Compare Modulating Boiler Signals

400

401

402

403

422

423

0-10 V (dc)

4-20 mA

-

-

EMS Stager

Temperature Target

-

-

 

Compare Designer Series Mixing Expansion Modules

441

444

Variable Speed

-

Floating Action

-

0-10 V (dc)

-

2-10 V (dc)

-

0-20 mA

-

4-20 mA

-

tekmarNet® valve actuator

-