Compare tekmar Multi-Staging Controls

Improve efficiency with staging control.

tekmar Multi-Staging controls coordinate heat source operation to better match the load, lowering energy costs and facilitating redundancy.

tekmar 40 Years

System Requirements

284

289

294

294 w/ up to 3 294EXP

On/Off Boilers

Maximum Number of each type

1 Stage

4*

 2 4 16

2 Stage

4*

 - 2 8

3 Stage

1

 - 1 5

4 Stage

1

 - 1 4

Modulating Boilers

Maximum Number of each type

Burner Firing Rate

4*

 - 4 16

Target Temperature

4*

 - 4 16

Mixed Boiler Plant Control

Combine condensing & non-condensing boiler groups

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 -

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DHW Through Valves (V) or Pumps (P)

Indirect domestic hot water (IDHW) operation

P

 P P P

Stand-by Pump Operation

Automatic back-up pump start to improve system reliability

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-

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Setpoint Operation

Hot water for hot-tubs, pools & snowmelt

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-

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Dedicated DHW Operation

Hot water for dedicated domestic hot water (DDHW) tank

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BACnet® & Modbus® Communication

Remote monitoring & adjustment capability with BAS

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 - - -

Modbus® Communication to boiler

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 -

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Accept EMS 0-10 V (dc)

Connect to tekmarNet® / EMS systems

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Nexa™ by Watts mobile app

Remote monitoring and notifications using the Nexa™ by Watts desktop and mobile apps

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Features & Benefits

284

289

294

294 w/ up to 3 294EXP

Outdoor Temperature Reset

Adjust water temperature based on outdoor temperature for energy savings

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Warm Weather Shut Down

Shut down heating systems in warmer weather

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Automatic Differential

Manage boiler run times automatically to reduce cycling

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Indirect DHW Priority

Suspends space heating to focus on indirect domestic hot water (IDHW)

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Equal Run Time Rotation

Boilers run equal amounts of time & receive equal wear

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 ●

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Pump Exercising

Briefly run pumps to prevent seizing

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 -

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Pump Post Purge

Run pumps to flush residual heat energy from the boiler

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 -

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Primary Pump Rotation

Pumps run equal amounts of time & receive equal wear

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 - - -

Fixed Lead Option

Run high efficiency boilers first to maximize energy savings

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 -

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Fixed Last Option

Run inefficient boilers last to improve overall plant efficiency

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tekmarNet® Communication - 2 or 4 Wire

Network communication provides greater functionality

4

 - 4 4

tekmarNet® Communication - Number of Boiler Buses

Up to 24 tekmarNet® devices can be connected per bus

4

 - 1 1

Remote tekmarNet® Monitoring

Access tekmarNet® systems via the internet with a Gateway 486

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 - ● -

Built-in Setback

Simple, programmable schedule for greater energy savings

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DHW Recirculation Pump

Conserve energy by running pump on a schedule Recirc.

Recirc

or

C.A.

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Combustion Air Damper Output

Close damper when system is off & open before operation

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Alert Output

Provide notification of error & warning events

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Energy, Flow & Pressure Monitoring

Provide advanced system monitoring

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●****

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Boiler Outlet & Vent Temperature Monitoring & Limiting

Provide advanced monitoring & limiting to improve overall plant reliability

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 - - -

Flow Proof

Proof of flow to enable backup primary pump or trigger failure notification

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 - - -

Combustion Air Proof

Proof of combustion air before allowing boiler plant operation

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 - - -

**** Pressure Monitoring only.