USED 2020 UNILUX ZF1200LS

OVERVIEW
 
Unilux Advanced Manufacturing Flexible Water Tube Boiler — Model ZF1200LS, Serial Number A3658, Year Built 2020. Low-pressure steam and hot water boiler rated at 15 PSIG steam / 30 PSIG water with 12,400 MBH maximum gas input and 10,620 MBH safety relief valve rating. Maximum water temperature 250°F. Heating surface 1,062 square feet. ASME certified flexible water tube design manufactured in Niskayuna, New York, USA. Natural gas fired with dual fuel capability per nameplate. Supply circuit 575V three-phase. Complete system includes Hurst Boiler feedwater package, dual Mitsubishi A700 series variable frequency drives, touchscreen PLC control panel with main disconnect, and full red-piped condensate/feedwater return system.
2020 manufacture — near-new condition. Flexible water tube design provides superior thermal efficiency, rapid response to load changes, and excellent durability in demanding commercial and industrial applications. Ideal for large commercial facilities, food and beverage processing, industrial plants, district heating, laundry operations, or any application requiring high-capacity low-pressure steam or hot water generation.
 
EQUIPMENT SPECIFICATIONS
 
Boiler Model Information:

Manufacturer: Unilux Advanced Manufacturing, LLC
Manufacturing Location: Niskayuna, New York, USA
Product Line: Flexible Water Tube Boilers
Model Number: ZF1200LS
Serial Number: A3658
Year Built: 2020
Boiler Type: Flexible Water Tube
Fuel Type: Natural Gas (Dual Fuel Capable per nameplate)
ASME Certified: Yes

 
Performance Ratings:

Maximum W.P. Steam: 15 PSIG
Maximum W.P. Water: 30 PSIG
Maximum Water Temperature: 250°F
Safety Relief Valve Rating: 10,620 MBH
Gas Input — Maximum: 12,400 MBH
Gas Input — Minimum: 1,260 MBH
Heating Surface: 1,062 SQFT
Turndown Ratio: Approximately 10:1 (12,400 / 1,260 MBH)

 
Gas Train Specifications:

Fuel: Natural Gas
Max Manifold Pressure: 24.8" W.C.
Regulator Inlet Pressure: 10 PSIG
Fuel Oil: Not configured (blank on nameplate)

 
Electrical Specifications:

Supply Circuit: 575V, 3-Phase, 60Hz, 6.8 Amps
Control Circuit: 115V, 1-Phase, 60Hz, 4.20 Amps
VFDs: (2) Mitsubishi A700 Series Variable Frequency Drives
Control Panel: Touchscreen PLC with main rotary disconnect

 
Hurst Feedwater System:

Manufacturer: Hurst Boiler and Welding Co., Inc., Coolidge, GA
Diagram Number: 20000119
Max VAC: 575V, 3PH, 60Hz
Full Load Amps: 8.5
Recommended Feeder Amps: 15
Largest Motor Amps: 3.4
Short Circuit Current Rating: AIC Symmetrical 5kA
Max Voltage: 575VAC
Transformer: 250VA (575V–120V), Class CC
UL Listed: UL508A, E214073
UL Listing Date: 03/23/2020

 
Clearances (W/LS — With Low Side):

Top: 18" / 457mm
Side: 18" / 457mm
Rear: 18" / 457mm
Front: 48" / 1,219mm
Vent: 18" / 457mm
Floor: Non-Combustible

 
Clearances (HS — High Side):

Top: 48" / 1,219mm
Side: 36" / 914mm
Rear: 36" / 914mm
Front: 96" / 2,438mm
Vent: 36" / 914mm
Floor: Non-Combustible

 
KEY FEATURES & BENEFITS
 
2020 Near-New Manufacture:

2020 year of manufacture
Minimal service hours
Like-new mechanical condition
Current generation Unilux technology
Modern controls and VFD package
Full system ready for installation

 
Unilux Flexible Water Tube Design:

Flexible water tube construction
Superior thermal efficiency
Rapid response to steam demand changes
Excellent resistance to thermal shock
ASME certified pressure vessel
USA manufactured — Niskayuna, New York
Proven Unilux engineering and quality

 
High-Capacity Natural Gas Operation:

12,400 MBH maximum gas input
1,260 MBH minimum firing rate
Approximately 10:1 turndown ratio
Wide modulation range for efficiency
Low excess air combustion
Professional gas train assembly
24.8" W.C. manifold pressure

 
Advanced Variable Frequency Drive Package:

Dual Mitsubishi A700 Series VFDs
Variable speed burner/blower motor control
Improved combustion efficiency
Reduced electrical energy consumption
Soft start capability
Modern drive technology

 
Touchscreen PLC Control System:

Touchscreen operator interface
PLC-based burner management
Digital control and monitoring
Main rotary disconnect switch
Professional industrial enclosure
Integrated safety interlocks

 
Complete Hurst Feedwater System:

Hurst Boiler and Welding Co. feedwater package
Matched to boiler — same 2020 manufacture year
Red-piped condensate return system
Duplex pump configuration
Complete feedwater management
UL listed assembly

 
Low Pressure Flexibility:

15 PSIG steam / 30 PSIG water rating
Suitable for steam or hot water applications
250°F maximum water temperature
Broad application range
Commercial and industrial capable

 
Safety & Compliance:

ASME certified construction
Safety relief valve rated 10,620 MBH
Flame safeguard system
Low water cutoff protection
Multiple safety interlocks
UL listed electrical components
Professional safety engineering

 
SYSTEM COMPONENTS
 
Main Boiler:

Unilux Model ZF1200LS
Serial Number A3658
Year Built 2020
Flexible water tube design
12,400 MBH max gas input
15 PSIG steam / 30 PSIG water MAWP
1,062 SQFT heating surface
ASME certified
Complete with all trim and controls

 
Burner & Gas Train:

Large forced-draft burner assembly
Natural gas primary fuel
Dual fuel capable per nameplate
Max gas input 12,400 MBH
Min gas input 1,260 MBH
Max manifold pressure 24.8" W.C.
Regulator inlet pressure 10 PSIG
Safety shut-off valves
Flame safeguard system

 
Variable Frequency Drives:

Quantity: 2 Mitsubishi A700 Series VFDs
Variable speed motor control
Wall-mounted adjacent to control panel
Matched to burner/blower motors

 
Control Panel:

Touchscreen PLC operator interface
Main rotary disconnect (red handle)
Burner management system
Digital monitoring and diagnostics
Safety interlock integration
Professional NEMA enclosure

 
Hurst Feedwater Package:

Hurst Boiler and Welding Co., Coolidge, GA
575V, 3PH, 60Hz
Full Load Amps: 8.5
Duplex feedwater pump assembly
Red-piped condensate/feedwater system
Vertical condensate receiver tank (red)
UL Listed — UL508A E214073
2020 manufacture

 
Condensate / Feedwater Piping:

Complete red-piped condensate return system
Condensate receiver tank
Feedwater supply and return piping
Isolation and gate valves throughout
Professional piping installation

 
Safety & Instrumentation:

Safety relief valve (10,620 MBH rated)
Pressure gauge
Low water cutoff
Temperature sensors
Water level controls
Flame supervision
Emergency shutdown

 
SPECIFICATIONS SUMMARY

Manufacturer: Unilux Advanced Manufacturing, LLC
Location: Niskayuna, New York, USA
Model: ZF1200LS
Serial No: A3658
Year Built: 2020
Type: Flexible Water Tube Boiler
Fuel: Natural Gas (Dual Fuel Capable)
Max Gas Input: 12,400 MBH
Min Gas Input: 1,260 MBH
Max W.P. Steam: 15 PSIG
Max W.P. Water: 30 PSIG
Max Water Temp: 250°F
Safety Relief Valve: 10,620 MBH
Heating Surface: 1,062 SQFT
Max Manifold Pressure: 24.8" W.C.
Regulator Inlet Pressure: 10 PSIG
Supply Circuit: 575V, 3PH, 60Hz, 6.8A
Control Circuit: 115V, 1PH, 60Hz, 4.20A
VFDs: (2) Mitsubishi A700 Series
Feedwater System: Hurst Boiler, 2020, 575V 3PH
ASME Certified: Yes
Condition: Used — Like New (2020)

 
ADDITIONAL INFORMATION

Condition: Used — Like New
Year Built: 2020
Manufacturer: Unilux Advanced Manufacturing, LLC
Manufacturing Location: Niskayuna, New York, USA
Model: ZF1200LS
Serial Number: A3658
Boiler Type: Flexible Water Tube
Fuel Type: Natural Gas (Dual Fuel Capable)
Max Gas Input: 12,400 MBH
Min Gas Input: 1,260 MBH
Max W.P. Steam: 15 PSIG
Max W.P. Water: 30 PSIG
Max Water Temperature: 250°F
Safety Relief Valve Rating: 10,620 MBH
Heating Surface: 1,062 SQFT
Turndown Ratio: ~10:1
Gas Manifold Pressure: 24.8" W.C. maximum
Regulator Inlet Pressure: 10 PSIG
Supply Circuit: 575V, 3PH, 60Hz, 6.8 Amps
Control Circuit: 115V, 1PH, 60Hz, 4.20 Amps
VFDs: (2) Mitsubishi A700 Series Variable Frequency Drives
Control: Touchscreen PLC panel with main rotary disconnect
Feedwater Package: Hurst Boiler and Welding Co., 2020, 575V 3PH, UL Listed
ASME Certified: Yes
National Board Number: See nameplate

 
WHAT'S INCLUDED:

Unilux ZF1200LS flexible water tube boiler — complete with all trim and controls
(2) Mitsubishi A700 Series VFDs
Touchscreen PLC control panel with main disconnect
Hurst Boiler feedwater package (duplex pumps, receiver tank)
Complete red-piped condensate and feedwater return system
All associated piping, valves, and instrumentation

 
INSTALLATION NOTES:

575V three-phase power required
Professional rigging and installation recommended
Inspection welcome — contact us to schedule
Additional photos and video available upon request

* Manufacturer: Unilux Advanced Manufacturing, LLC
* Manufacturing Location: Niskayuna, New York, USA
* Product Line: Flexible Water Tube Boilers
* Model Number: ZF1200LS
* Serial Number: A3658
* Year Built: 2020