Compare HVAC System Controls
|
System Requirements |
|||||||||||||||
|
Number of Water Temperatures Flexibility for custom applications |
1 |
1 |
1 |
- |
1 |
1 |
1 |
1 |
3 |
1 |
1 |
2 |
2 |
||
|
Number of Boilers Outdoor Temperature Reset control |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
2 |
||||
|
Boiler Type On/Off (O) Modulating (M) or Steam (S) |
O |
O |
O |
S |
O |
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 |
- |
- |
|
Zone Expansion using Wiring Centers Offers quick installations & simple troubleshooting |
|
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
Features & Benefits |
|||||||||||||||
|
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 or 4 |
2 or 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 483 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
|
|
|
|
|
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 |
||||||
|
0-10 V (dc) |
|
|
|
|
|
|
|
4-20 mA |
|
|
|
|
- |
- |
|
EMS Stager |
|
|
|
|
|
|
|
Temperature Target |
|
|
|
|
- |
- |
|
Compare Designer Series Mixing Expansion Modules |
|||
|
Variable Speed |
|
- |
|
|
Floating Action |
|
- |
|
|
0-10 V (dc) |
- |
- |
|
|
2-10 V (dc) |
- |
- |
|
|
0-20 mA |
- |
- |
|
|
4-20 mA |
- |
- |
|
|
tekmarNet® valve actuator |
- |
|
- |
