Honeywell W7220A1000 Economizer Controller
The W7220A1000 economizer controller is a purpose-built control interface that provides reliable economizer sequencing with built-in alarm relay outputs for ventilation and code-compliance applications. It stands out for its low upfront cost and simple retrofit path, making it a financially attractive choice for projects that only need economizer/relief control compared with more feature-rich universal controllers like the Siemens RMH760B or programmable FX-series units. While less flexible for complex BMS logic, its focused functionality reduces integration time and project risk for alarm relay and ventilation control use cases.
Energy-sipping hero
Fresh-air whisperer
Energy-sipping hero
Fresh-air whisperer
Review Summary
"Users praise the robust hardware and seamless integration with Honeywell systems, though initial setup and economizer tuning can be tricky for less-experienced technicians."
Code-compliant pal
Integrated economizer control for outdoor-air damper operation to meet ventilation and energy codes.
Code-compliant pal
Integrated economizer control for outdoor-air damper operation to meet ventilation and energy codes.
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
The W7220A1000 economizer controller is a purpose-built control interface that provides reliable economizer sequencing with built-in alarm relay outputs for ventilation and code-compliance applications. It stands out for its low upfront cost and simple retrofit path, making it a financially attractive choice for projects that only need economizer/relief control compared with more feature-rich universal controllers like the Siemens RMH760B or programmable FX-series units. While less flexible for complex BMS logic, its focused functionality reduces integration time and project risk for alarm relay and ventilation control use cases.
Energy-sipping hero
Fresh-air whisperer
Code-compliant pal
Integrated economizer control for outdoor-air damper operation to meet ventilation and energy codes.
Supports dry-bulb and enthalpy sensors plus multiple analog and digital I/O for HVAC inputs.
Energy-sipping hero
Fresh-air whisperer
Code-compliant pal
Integrated economizer control for outdoor-air damper operation to meet ventilation and energy codes.
Supports dry-bulb and enthalpy sensors plus multiple analog and digital I/O for HVAC inputs.
$350-650 CAD
Johnson Controls FX-PCG1611-0 Controller
The FX-PCG1611-0 is a modular programmable controller with extensive I/O and relay capabilities geared toward custom control strategies and alarm handling. It excels in technical flexibility and seamless integration into Johnson Controls Metasys ecosystems, which can lower lifecycle engineering and commissioning costs on larger jobs compared with fixed-function devices such as the Honeywell economizer. The higher initial price is offset by reduced engineering hours and scalability for complex sequences that require many alarm relays and programmatic interlocks.
Flexible brainbox
Network-savvy wizard
Flexible brainbox
Network-savvy wizard
Review Summary
"Installers report solid runtime reliability and effective HVAC control, but note the programming tools and documentation can be confusing and require a learning curve."
Installer's bestie
Compact programmable controller designed for HVAC sequences with flexible logic options.
Installer's bestie
Compact programmable controller designed for HVAC sequences with flexible logic options.
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
The FX-PCG1611-0 is a modular programmable controller with extensive I/O and relay capabilities geared toward custom control strategies and alarm handling. It excels in technical flexibility and seamless integration into Johnson Controls Metasys ecosystems, which can lower lifecycle engineering and commissioning costs on larger jobs compared with fixed-function devices such as the Honeywell economizer. The higher initial price is offset by reduced engineering hours and scalability for complex sequences that require many alarm relays and programmatic interlocks.
Flexible brainbox
Network-savvy wizard
Installer's bestie
Compact programmable controller designed for HVAC sequences with flexible logic options.
Multiple universal inputs and analog/digital outputs to handle diverse field devices and sensors.
Flexible brainbox
Network-savvy wizard
Installer's bestie
Compact programmable controller designed for HVAC sequences with flexible logic options.
Multiple universal inputs and analog/digital outputs to handle diverse field devices and sensors.
$450-800 CAD
Siemens RMH760B Universal Controller
The RMH760B universal controller offers high configurability, multi-protocol support and robust alarm-relay handling, making it a market leader for enterprise-scale BMS projects that demand advanced logic and integration. Its technical depth and vendor-certified performance justify a premium over gateway-focused modules like the Belimo ZIP-232-MOD, delivering long-term value through scalability and centralized alarm management across large installations. For teams that require extensive I/O mapping and protocol flexibility, Siemens offers the most capable platform in this list albeit at a higher acquisition cost.
Universal swiss-army
Robust workhorse
Universal swiss-army
Robust workhorse
Review Summary
"Field users find the RMH760B flexible and dependable for varied control tasks, but commissioning often requires Siemens-specific software and trained staff."
Precision maestro
Universal controller architecture scalable for air handling units and larger HVAC applications.
Precision maestro
Universal controller architecture scalable for air handling units and larger HVAC applications.
Time-Saving Convenience
Skill Development & Mastery
Increased Safety & Security
The RMH760B universal controller offers high configurability, multi-protocol support and robust alarm-relay handling, making it a market leader for enterprise-scale BMS projects that demand advanced logic and integration. Its technical depth and vendor-certified performance justify a premium over gateway-focused modules like the Belimo ZIP-232-MOD, delivering long-term value through scalability and centralized alarm management across large installations. For teams that require extensive I/O mapping and protocol flexibility, Siemens offers the most capable platform in this list albeit at a higher acquisition cost.
Universal swiss-army
Robust workhorse
Precision maestro
Universal controller architecture scalable for air handling units and larger HVAC applications.
Supports industry network protocols for system integration and centralized monitoring.
Universal swiss-army
Robust workhorse
Precision maestro
Universal controller architecture scalable for air handling units and larger HVAC applications.
Supports industry network protocols for system integration and centralized monitoring.
$500-900 CAD
Belimo ZIP-232-MOD Gateway Module
The ZIP-232-MOD gateway module is a compact, cost-efficient interface that bridges actuator/field-device networks to building controllers while exposing alarm relay points for downstream systems. It is ideal when budgets favor minimal hardware changes—offering quick deployment and reduced commissioning time compared with replacing full controllers like the KMC or Johnson models. Although it does not replace a full-featured controller, its financial efficiency and fast integration make it a strong choice for retrofit projects that need reliable alarm relay interfacing.
Protocol translator
Integration wizard
Protocol translator
Integration wizard
Review Summary
"Customers like the compact gateway and straightforward Modbus/ZIP interfacing, though some encounter firmware edge cases and wish for more advanced diagnostics."
Tiny yet mighty
Protocol gateway module to bridge Belimo ZIP devices with building networks like Modbus/RTU.
Tiny yet mighty
Protocol gateway module to bridge Belimo ZIP devices with building networks like Modbus/RTU.
Time-Saving Convenience
Skill Development & Mastery
The ZIP-232-MOD gateway module is a compact, cost-efficient interface that bridges actuator/field-device networks to building controllers while exposing alarm relay points for downstream systems. It is ideal when budgets favor minimal hardware changes—offering quick deployment and reduced commissioning time compared with replacing full controllers like the KMC or Johnson models. Although it does not replace a full-featured controller, its financial efficiency and fast integration make it a strong choice for retrofit projects that need reliable alarm relay interfacing.
Protocol translator
Integration wizard
Tiny yet mighty
Protocol gateway module to bridge Belimo ZIP devices with building networks like Modbus/RTU.
DIN-rail mountable compact design with configurable mapping between devices and registers.
Protocol translator
Integration wizard
Tiny yet mighty
Protocol gateway module to bridge Belimo ZIP devices with building networks like Modbus/RTU.
DIN-rail mountable compact design with configurable mapping between devices and registers.
$250-450 CAD
KMC Controls BAC-5051E BACnet Controller
The BAC-5051E is a BACnet-native controller engineered for open-protocol integration with direct alarm-relay outputs, delivering a strong price-to-performance balance for BACnet-centric systems. It provides many of the relay and network features of larger vendors at typically lower total cost of ownership, making it especially attractive for owners prioritizing open-standards interoperability over proprietary ecosystems. While vendor support and ecosystem services may differ from multinational suppliers, its affordability and BACnet focus simplify deployment in alarm relay and control interface applications.
BACnet champion
Field-programmer's buddy
BACnet champion
Field-programmer's buddy
Review Summary
"Frequently cited as a cost-effective, reliable BACnet controller with flexible I/O, users sometimes complain about a dated user interface and sparse out-of-the-box documentation."
Reliable guardian
Native BACnet-compatible controller providing seamless BACnet object integration for alarms and controls.
Reliable guardian
Native BACnet-compatible controller providing seamless BACnet object integration for alarms and controls.
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
The BAC-5051E is a BACnet-native controller engineered for open-protocol integration with direct alarm-relay outputs, delivering a strong price-to-performance balance for BACnet-centric systems. It provides many of the relay and network features of larger vendors at typically lower total cost of ownership, making it especially attractive for owners prioritizing open-standards interoperability over proprietary ecosystems. While vendor support and ecosystem services may differ from multinational suppliers, its affordability and BACnet focus simplify deployment in alarm relay and control interface applications.
BACnet champion
Field-programmer's buddy
Reliable guardian
Native BACnet-compatible controller providing seamless BACnet object integration for alarms and controls.
Multiple universal inputs and relay outputs suitable for alarm relays, monitoring, and control loops.
BACnet champion
Field-programmer's buddy
Reliable guardian
Native BACnet-compatible controller providing seamless BACnet object integration for alarms and controls.
Multiple universal inputs and relay outputs suitable for alarm relays, monitoring, and control loops.
$500-900 CAD