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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.

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System Requirements

268

274

275

284

On/Off Boilers

Maximum Number of each type

1 Stage

9*

4

4

4*

2 Stage

4

2

-

4*

3 Stage

3

1

1

1

4 Stage

2

1

1

1

Modulating Boilers

Maximum Number of each type

Burner Firing Rate

-

-

4

4*

Target Temperature

-

-

-

4*

Mixed Boiler Plant Control

Combine condensing & non-condensing boiler groups

-

-

-

DHW Through Valves (V) or Pumps (P)

Indirect domestic hot water (IDHW) operation

V/P

P

or

P

or

P

Stand-by Pump Operation

Automatic back-up pump start to improve system reliability

-

Setpoint Operation

Hot water for hot-tubs, pools & snowmelt

Setp.
or
DHW

Setp.
or
DHW

Setp.
or
DHW

Dedicated DHW Operation

Hot water for dedicated domestic hot water (DDHW) tank

BACnet® & Modbus® Communication

Remote monitoring & adjustment capability with BAS

-

-

-

Accept EMS 0-10 V (dc)

Connect to tekmarNet® / EMS systems

Features & Benefits

268

274

275

284

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 automatically to reduce cycling

Indirect DHW Priority

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

Equal Run Time Rotation

Boilers run equal amounts of time & receive equal wear

Pump Exercising

Briefly run pumps to prevent seizing

Pump Post Purge

Run pumps to flush residual heat energy from the boiler

Primary Pump Rotation

Pumps run equal amounts of time & receive equal wear

-

Fixed Lead Option

Run high efficiency boilers first to maximize energy savings

Fixed Last Option

Run inefficient boilers last to improve overall plant efficiency

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

-

1

1

4

Remote tekmarNet® Monitoring

Access tekmarNet® systems via the internet with a Gateway 486

-

Built-in Setback

Simple, programmable schedule for greater energy savings

-

DHW Recirculation Pump

Conserve energy by running pump on a schedule

-

Recirc

or

C.A.

Combustion Air Damper Output

Close damper when system is off & open before operation

C.A.

or

Alert

C.A.

or

Alert

C.A.

or

Alert

Alert Output

Provide notification of error & warning events

Energy, Flow & Pressure Monitoring

Provide advanced system monitoring

-

-

-

Boiler Outlet & Vent Temperature Monitoring & Limiting

Provide advanced monitoring & limiting to improve overall plant reliability

-

-

-

Flow Proof

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

-

Flow

or

C.A.

Flow

or

C.A.

Combustion Air Proof

Proof of combustion air before allowing boiler plant operation

-