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Fireye Nexus NXM2G Efficiency Control - Efficiency Controls
FireyeEfficiency Controls

Fireye Nexus NXM2G Efficiency Control

The Fireye Nexus 3G-OTH-02773 is an efficiency control designed for use in industrial burner management systems. It carries CE and UL Listed approvals, ensuring compliance with international safety and performance…

SKU 3G-OTH-02773

Brand
Fireye
Item
Nexus NXM2G Efficiency Control
Category
Efficiency Controls
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Fireye
Models
NXM2G
Category
Efficiency Controls
Approvals
CE, UL Listed

Datasheet Content

[{"filename":"MF-00-2-0700-0-020-B_Nexus_NXM2G.pdf","text":"Nexus Combustion Efficiency Systems\n ®\n\n\n\nNXM2G Efficiency Control\n\nIntelligent Boiler Load Optimizer\nNXM2G\nIntelligent microprocessor-based system\ndesigned to reduce energy costs by providing\noptimum thermal efficiency of low-temperature\nhot water boilers\n\nThe Intelligent Boiler Load Optimizer (3G-OTH-02773) efficiency\ncontrol measures the supply and return temperature via digital\nsensors and monitors the “call for heat.”\n\n • On first firing, the boiler will reach the normal\n temperature set point and turn off\n • On the next stage, the Intelligent Boiler Load Optimizer\n (3G-OTH-02773) will check:\n • For the “call to heat”\n • If the boiler supply and return temperatures are within\n the designed temperature differential settings, and\n • If the boiler is required to fire, based on control\n algorithms\n\nWhen this occurs, the Intelligent Boiler Load Optimizer\n(3G-OTH-02773) will hold off the boiler firing (save mode) based on\ntemperature and time, which are both adaptive. This control\nfunction will also inhibit the burner from firing on high fire if\nthe boiler load demand is low, thus helping to ensure the\nbest efficiency for the current system demand. This helps\neliminate the wasted energy caused by standby cycling.\n\n\nSpecifications\n Supply Voltage 120VAC / 60 Hz\n Rated Current 50mA\n Relay Switch Cap 2A at 120VAC (resistive)\n Fuse Rating 1.6A at 120VAC\n Dimensions (WxHxD) 6.9 in. x 7.9 in. x 2.1 in.\n Sensors Plug in digital therm (2)\n Sensor Range 131°F to 257°F\n Weight 3.6 lbs\n Environment NEMA 1/IP11\n Minimum/Maximum Temperature 32°F to 125°F\n\n\n\n\nfireye.com\n\fNexus Combustion Efficiency Systems\n ®\n\n\n\nNXM2G Efficiency Control\n\nBoiler Standby Cycling\nStandby cycling on boilers occurs throughout the year, even if the boilers are just providing hot water generation during\nthe summer months. This can be reduced by fitting the Intelligent Boiler Load Optimizer (3G-OTH-02773) to each boiler. The\nsystem identifies and removes standby cycling therefore reducing energy costs and CO2 emissions.\n\n\n\n\nApplicable Systems Value Delivered\n • Closed loop commercial boilers that use gas, oil • Clients are observing energy and carbon savings of\n propane and/or LPG for building or process heating 10% to 20%\n • Single or multiple boiler configurations • Controlling boiler short-cycling can help provide\n • Compatible with existing controls and operations; significant energy and maintenance savings\n operates with existing BMS • Reducing the amount of boiler cycles (the number\n of times the boiler turns on and off) minimizes the\n • Dynamic and self-adjusting\n energy input needed to reheat the boiler\n • Single stage, multi-stage or modulating boilers\n • Fast payback or ROI with low capital investment\n\n\n\n\nFor more information, please contact your local Fireye Distributor.\nfireye.com\nMF-00-2-0700-0-020-B (2024/08)\nAll trademarks and service marks referred herein are property of their respective owners.\n©2024 Fireye. All Rights Reserved.\n\n Join us on"}]

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Fireye Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Fireye Nexus 3G-OTH-02773 is an efficiency control designed for use in industrial burner management systems. It carries CE and UL Listed approvals, ensuring compliance with international safety and performance standards. This model is part of Fireye's Nexus series, offering reliable control for combustion efficiency applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Fireye Nexus 3G-OTH-02773 Efficiency Control used for?

The Fireye Nexus 3G-OTH-02773 is an intelligent boiler load optimizer that prevents dry cycling in low- and medium-temperature hot water boilers. It reduces energy costs by holding off burner firing when heat demand is low, eliminating standby cycling and saving 10% to 20% on energy.

What are the specifications of the Fireye Nexus 3G-OTH-02773?

The 3G-OTH-02773 operates on 120 VAC at 60 Hz with a 50 mA rated current. It includes two plug-in digital temperature sensors with a range of 131°F to 257°F. The unit measures 6.9 x 7.9 x 2.1 inches, weighs 3.6 lbs, and is UL Listed and CE approved.

Where to buy the Fireye Nexus 3G-OTH-02773 in Singapore?

3G Electric supplies the Fireye Nexus 3G-OTH-02773 Efficiency Control to Singapore. We source and deliver this unit, handling logistics and customs clearance so you receive it ready for installation. Contact us for pricing and lead time on your order.

How to install the Fireye Nexus 3G-OTH-02773 on a boiler?

Install the 3G-OTH-02773 by connecting it to the boiler's supply and return lines using the included digital temperature sensors. Wire the unit to 120 VAC power and integrate it with your existing building management system. Follow Fireye's manual for proper sensor placement and commissioning.

Used in

Common applications for Fireye
Power-plant auxiliary boiler — M-Series II controller with UV flame scanner, programmed for gas/oil switchover and flame-presence monitoring.
Refinery process heater — MP100E programmer module managing multi-stage ignition and flame-out shutdown interlocks on high-pressure burners.
Petrochemical facility thermal oxidizer — MAUV1T UV amplifier module processing scanner signal from high-temperature burner housings with immune-response filtering.
Large-scale industrial oven (metal treating) — M-Series II with remote reset capability and dual-fuel solenoid isolation for operator safety and burner protection.
Cogeneration plant fuel-gas burner — Fireye scanner and modular controller stack integrated into BMS with remote monitoring of flame status and controller fault codes.

Fireye Products

3G Electric supplies Fireye efficiency controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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