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Ultra 230 - 183,000 BTU Output High Efficiency Boiler - Series 4 (Nat Gas or LP)
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MANUALS (7)
Replacement Parts
Lift Gate
Product Highlights
Description
Note: the Ultra boiler is no longer shipped with the Sentinel X100 Inhibitor & Sentinel Inhibitor Test Kit as stated in the User Guide.
Series 4 Ultra CT Boilers
Note: Product Title reflects this boiler's IBR Net Output Rating
Propane Conversion Orifice included for LP Gas Applications
Key Features
- Gas fired water boiler with cast aluminum heat exchanger
- Venturi mixing body mixes air and gas providing higher efficiency
- Designed to operate in low temperature condensing applications
- Outdoor reset and domestic hot water priority standard
- Negative regulated gas valve precisely delivers gas to the boiler
- Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
- Modulates with 5 to 1 turndown ratio
- Variable speed motor matches combustion output to heating needs
- High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications.
The Ultra Easy-Up Manifold Kit can speed up installation of the primary/secondary piping required on Ultra boilers. Weil-McLain's Easy-Up manifold kit is designed by the boiler manufacturer and provides the added feature of optional indirect water heater connections.
Easy-up Manifold Installation Options:
Specs
| Width (Inches): | 22-13/16" |
|---|---|
| Fuel Type: | Natural Gas Propane |
| Vent Type: | Direct Vent AL29-4C PVC |
| Boiler Type: | High Efficiency |
| Color: | Slate Gray |
| Efficiency: | 94.1% |
| System Type: | Hydronic (Water) |
| Features: | EI/Spark Ignition Direct Vent Condensing |
| Vent Size: | 3" 4" |
| Water Connection: | 1" |
| Gas Connection: | 1/2" |
| BTU Input: | 230000 |
| DOE Rating: | 207000 |
| IBR Rating: | 183000 |
| Warranty: | 15 Year Limited (Heat Exchanger), 1 Year (Parts) |
| Depth (Inches): | 19-15/16" |
| Height (Inches): | 43.0625" |
Questions?
You May Also Need
Ultra 230 (S4)
Replacement Parts
SKU: 383-500-736
Brand: Weil-McLain
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Product Reviews
I Will Look For More Boilers Alike Again.
Weil McLain Ultra 230
great deal, price and shipping
HVAC Service Manager - Very Reliable Product
Good value for $
A Complex Install, but Intelligent Unit
This machine is a Dream come true
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hi efficiency boiler
very very pleased ++++ I'm fussy
Working well through many cold nights
Product Q&A
15 QuestionsQ: does this boiler need one and half gas line from the main gas line?
Asked by Mr Pollock 15 years ago
Add your answer
Verified Reply- PexSupply StaffAccording to the specifications for this boiler, it requires a 1/2" gas connection.
Q: How is the ~95% efficiecy calculated? If I divide the BTUs out buy the BTUs I get <80%.
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffThis unit has an IBR output rating of 183,000 and a DOE BTU rating of 207,000. We use the IBR ratings on the site. They assume that the boiler is located in an unheated space and that the heat lost from the boiler and its surrounding piping is wasted. The DOE rating (which will always be higher) assumes the boiler occupies a heated space. The 95.4% efficiency rating Weil-McLain lists uses the DOE rating and somewhere between the 46 and 230 BTU possible input ratings of the boiler.
Q: This unit has priority controls. How could I use this boiler to operate 8 zones with pumps? If it can only run one at a time... then should I consider another boiler? Any suggestions?
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffYou can purchase a circulator zone controller. Weil-Mclain sells the WMCR-6 and the WMCR-4E expanders that would handle up to 10 circulators. The boiler control signal would come from X X on the WMCR and connect to Heat Deamand 2, P15, terminals 1 & 2. The DHW would be connected to Heat Demand 1, P15, terminals 4 & 5.
Q: Does this unit only control 3 zones? If so, can it be expanded to 6 zones?
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffAccording to the manufacturer, the Ultra control is a priority control, not a zone control. People do use it like that but it will not heat more than 1 priority at a time and with 6 zones that would be a problem.
Yes i have 8 zones.. in my setup there's a main pump for Heat Demand (thermostats) which i think they call supply, another for DHWater and a third that pumps into boiler. When any thermostat calls for heat demand a zone valve is opened and boiler turns on. Each zone does not necessarily have it's own pump - although one zone does have an extra pump for radiant heat which i'm assuming is needed for the greater length of tubing in the floor for that radiant zone. When counting Weil-mclain "Zones" : Typical as sold, one zone is circlulator pump to boiler itself, one zone is DHW, that's two zones down if utilizing DHW.. So without delving into your home's size calculations the basic pump setup i mentioned could pull water thru six zones w six thermostats, each being opened and closed by zone valves and associated controls.
Q: hi the hwbh piping in my house is 3/4". is that to small for this unit?
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffThe main boiler piping should be 1 1/2". Your zone take-offs can be 3/4" if your system is sized correctly.