SATURN SERIES boilers offer more than just comfort… Allied Engineering’s unique energy- efficient DOUBLE PASS design provides the ultimate in quality construction, performance and reliability. Low operating cost and ease of installation make our boilers well-suited for both new construction and renovation.
• Rugged industrial design steel fin tube heat exchanger built to ASME standards
• 85% AFUE efficiency rating (models SG135 to SG270)
• Compact, lightweight, and durable
• Ideal for modular installations providing uninterrupted heating
• Approved for combustible floor and closet / alcove installation
• Natural gas or propane
• NRCan Qualification for Saturn Series Boilers
|MODEL||INPUT (Btu/hr) *||OUTPUT (btu/hr)||INPUT (kw) *||OUTPUT (kW)|
Dimensions (See Figure Below)
|Model||Dim A **|
|Gas Conn. F|
Large and multi-family residential and commercial applications:
• Modular boiler installations
• Baseboard radiation
• Indirect hot water heaters
• In-floor heating
• Heat exchangers
• Radiant panels
• Fan coils
• Snow melt
“PS” PACKAGE CONVENIENCE
Optional on models up to SG270, “PS” or Packaged boilers save installers time and labour by including system parts and a pump pre-wired and mounted. See “COMPONENTS” tab for more information.
Allied Engineering uses an environmentally friendly construction that is designed for longevity and maximum efficiency. Most components can be recycled after their long, trouble-free life.
Saturn Series are manufactured to the highest standards, employing only top quality materials and workmanship. Our proven design features a TEN-YEAR heat exchanger warranty and one year on all parts and controls. Please refer to printed warranty for details. Installation and service manual provided with every boiler.
Boiler Controller: Control, monitoring and safety devices are factory wired using plug in connectors for quick installation and service.
Zone Control System: Models under 300,000 Btu/h use our exclusive Zone Controller which handles up to 4 zones with separate plug-ins for zone valves and LED lights to clearly show which zones are being heated. If required, additional boards can be added to increase zone capacity.
1. Automatic Vent Damper
Standard on models SG-135 to SG-270. Reduces off-cycle flue heat loss and
2. Draft Hood c/w Blocked Vent Safety Switch
Low profile and standard for all models. Ensures that flue gases get vented properly.
Can be supplied factory mounted and wired on a cast iron pump adapter. The pump adapter has a tapping designed to accept a dial type temperature gauge.
4. High Grade Stainless Steel Burners
Scientifically designed for efficient and quiet operation. Burner drawer slides out allowing easy access to burner and pilot for inspection and service.
5. Combination Gas Valve
Ensures safe lighting and 100% shut off in case of flame failure.
6. Steel Fin-Tube Heat Exchanger
To maximize the heat transfer surface, our unique double pass design uses 1/2” fin spirally and continuously welded on 2” O.D. SA178A, industrial steel boiler tube.
7. Boiler Control
Models SG135 – SG270
Advanced Honeywell® control with electronic spark ignition, thermal purge and limit rated water temperature control. Simple programming and LED display for quick installation and diagnostics.
Models SG315 – SG495
Various control options are available including two-stage, full mod, BC-1 with outdoor reset and DDC for external control.
8. Attractively Finished
A durable steel casing and attractive baked enamel finish from our state of the art paint line protects the boilers internal workings.
9. Full Doors
Full length doors are supplied on all boilers up to SG270. Control panel doors are supplied on boilers SG315 and over.
All Models Include:
• Stainless Steel Burners
• Electronic Intermittent Pilot Ignition
• Combination Gas Valve
• Temperature limiting aquastats
• Temperature/Pressure Gauge
• ASME Pressure Relief Valve
• Drain Valve
Models SG135 – SG270 also include:
• Integrated Boiler Control
• Zone Control Board/Transformer
• Blocked Vent Safety Switch
• Flame Roll-Out Safety Switch
• Automatic Vent Damper
Packaged Models “PS” Include:
Standard Model Parts Plus:
• Circulating Pump
• Custom Cast Iron Pump Adapter
• Expansion Tank
• Air Purger
• Combination Fill/Regulator Valve
• Automatic Air Vent
• Add 45lbs (20kg) for shipping weight
This notice is to inform that changes have been made to the MG and SG Series gas boilers electronic ignition pilot assemblies (January 2013). This change affects the following models in both natural gas and propane.
MG SERIES: MG-50-E, MG-75-E, MG-100-E, MG-125-E, MG-150-E
SG SERIES: SG-135-E, SG-180-E, SG-225-E, SG-270-E, SG-315-E, SG-360-E, SG-450-E
Since the pilot bracket and hood angle has changed, replacement pilots for these models must
be ordered and replaced as an assembly including the bracket and pilot supply tubing.
When ordering a replacement pilot, please use the following descriptions:
Pilot Assembly – MG – Universal
Pilot Assembly – SG – Universal
For more details contact your local sales representative.
If you have any questions regarding this bulletin, please do not hesitate to contact Tony Woo at firstname.lastname@example.org or 604-929-1214.
MG and SG boilers are using a new integrated control.
The advanced Honeywell control includes electronic spark ignition, post and thermal purge and limit rated water temperature control. Simple programming and LED display aid quick installation and is 2012 NRCAN / DOE compliant.
Operating setpoint (SP) equals Hi-limit setpoint (HL)
Adjust (HL) to control boiler water supply temperature
HL factory set to 180°F
Electrical Cut Off (ECO) limit is set to 230°F
Remember that warranties are only valid if a warranty card is filled out and returned to Allied Engineering by the home owner. Online registration is available at our Product Registration Section of the website.