Crown Boiler MWC116ELT, MWC Series, MWC116ENL, MWC116ELL, MWC116ENT manual Mounting The Boiler

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V Mounting The Boiler

CAUTION

This boiler weighs approximately 110 pounds:

•Two people are required to safely lift this boiler onto the wall mounting hook.

•Make sure that wall mounting hook is anchored to a structure capable of supporting the weight of the boiler and attached piping when filled with water.

Jurisdictions in areas subject to earthquakes may have special requirements for supporting this boiler. These local requirements take precedence over the requirements shown below.

Mounting Steps:

1)If the boiler is installed on a framed wall, minimum acceptable framing are 2 x 4 studs. The boiler mounting holes are on 11-5/8” centers. Usually the wall studs will be on 16” centers. In such cases, both boiler bracket mounting holes must be anchored to ¾” Plywood, horizontal 2 x 4s anchored to the studs, or some other framing system capable of supporting the boiler. Attachment of either bracket hole to wallboard alone is unacceptable.

2)When mounting this boiler directly onto studs covered with 1/2” wall board, 5/16 x 2” lag screws are recommended. When the boiler is attached to other types of construction, such as masonry, use fasteners capable of supporting the weight of the boiler and attached piping in accordance with good construction practice and applicable local codes.

3)Make sure that the surface to which the boiler is mounted is plumb.

4)Before mounting the boiler, make sure that wall selected does not have any framing or other construction that will interfere with the vent pipe penetration.

5)Tape the paper template to the wall in the chosen location. Be sure to level the template.

6)Pre-drill two holes in the center of the “oval” slots on the mounting bracket sized for the hardware being used.

7)Mount the bracket to the wall. Be sure to level the bracket by adjusting the screw in the vertical slot.

8)Pre-drill the remaining hole in the mounting bracket and secure the final screw.

9)Cut the opening in the wall for the vent system. The recommended hole diameter for the standard 60/100mm venting is 4-3/8”.

10)Hang the boiler on the wall bracket as shown in Figure 5.2.

11)Verify that the front and sides of the boiler are plumb.

12)See Section VII (“Venting) for instructions on attaching the vent system to the boiler.

13)A hot water boiler installed above radiation level or as the Authority having jurisdiction,

must be provided with a low water cutoff device either as a part of the boiler or at the time of installation.

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Contents MWC Series Page Table of Contents Key Component Product DescriptionMWC Boiler Principle Components Ratings II SpecificationsMaximum Vent Lengths Other SpecificationsIII Before Installing Clearances To Combustible Or Non-combustible Material Mounting The Boiler Wall Mounting Hole Locations Boiler Mounting VI Air for Ventilation Page Vent System Design VII VentingPage Horizontal Concentric Venting Vent Options 3b Crown Concentric 80/125 Vent Components Vent Options 3,5 3a Crown Concentric 60/100 Vent Components Vent Options 1,24c Positioning Vent Terminal Under Overhangs Vent/ Air Intake Fitting Equivalent Length Vertical Concentric Vent System Vent Option Removing an Existing Boiler From a Common Chimney All cuts are square and allow for proper insertion 21 Dimension L 22 Cutting Outer Pipe 25 Attaching 60/100mm Terminal Section 30 Installation Of 80/125 Adaptor On Boiler 31a Cuttable Straight Section 32 Cutting Straight Pipe 33a Joining Cuttable Pipe 34a Dimension L, 80/125mm Horizontal Terminal 34c Cutting Inner Pipe Of 80/125mm Horizontal Terminal 35a Dimension H 35b Cutting Vertical Terminal 36 Chimney Chase Installation 40 Condensate Piping Arrangement Condensate Trap and Drain LineViii Gas Piping Gas Connection To Boiler Standard Piping IX System PipingBasic Piping Relief Valve Installation Internal Boiler Piping Piping for Special SituationsPrimary-Secondary Piping MWC116E*T Combi Internal Boiler-Side Piping Schematic MWC116E*L Heat-Only Internal Piping Schematic Domestic Water Piping DHW Piping MWC116E*T Combi Internal DHW-Side Piping Schematic XI Wiring Field Supplied Box End Boiler End Location of Terminal Blocks and 7/8 Hole for Whip Field Wiring 120VAC Thermostat Internal Boiler Wiring Location of Automatic Air Vent Cap XII Start-up and CheckoutLocation of Circulator Shaft Cover Control Panel Page Inner Cover Removal MWC Series Lighting and Operating Instructions For Your Safety Read Before OperatingHigh Fire Combustion Readings DHW Xiii OperationHeating System Knob Sequence of Operation Also Refer to Figures 9.7, 9.8, 10.3 Flash Codes During Normal Operation See Part XV for Error CodesXIV. Service and Maintenance Removing Combustion Chamber Cover Inducer Service NotesCondensate Trap Removal No Error Code Displayed XV. TroubleshootingLamp Number Flame Meaning Corrective Action Error CodesFlow Chart for Isolating Limit and APS Errors See Table XVI Parts Flow group and three way diverter valve Model combi Flow and return groups Model c.h. only Pump and main circuit assembly Model combi Pump and main circuit assembly Model c.h. only Gas assembly Connection pipes Control panel and ignition device Model combi Control panel and ignition device Model c.h. only Wiring Model combi Wiring Model c.h. only Fan, combustion chamber and case panels Description Spare part code Description Spare part code Description Spare part code Installation of Carbon Monoxide Detectors Approved Carbon Monoxide Detectors 11/07

MWC116ENL, MWC116ELL, MWC116ELT, MWC116ENT, MWC Series specifications

Crown Boiler's MWC Series represents a commendable choice in the realm of residential and light commercial heating solutions. Specifically, models like the MWC116ENT, MWC116ELT, MWC116ELL, and MWC116ENL stand out due to their exceptional performance, reliability, and innovative features.

At the core of the MWC Series lies a robust cast iron boiler construction designed to withstand the test of time. This material not only provides durability but also enhances heat retention, thereby increasing the system's efficiency. Each model in this series is designed for natural gas or propane fuel types, ensuring flexibility based on availability and user preference.

A notable feature of the MWC116 models is the efficient heat exchanger, which enables rapid heating of water for both space heating and domestic hot water applications. With a heating capacity of 116,000 BTUs, these boilers deliver ample warmth for mid-sized homes or light commercial settings, making them a versatile option for various applications.

The MWC116ENT model is equipped with an energy-efficient electronic ignition system, which enhances reliability and efficiency. This technology reduces energy consumption, providing users with cost savings on their utility bills. Similarly, the MWC116ELT model boasts an integrated aquastat that regulates water temperature, ensuring optimal performance and comfort.

For those requiring increased venting options, the MWC116ELL model includes advanced horizontal venting capabilities, allowing for flexible installation in various environments. This feature aids in overcoming space limitations and facilitating optimal combustion conditions. The MWC116ENL, on the other hand, features a low NOx emissions configuration, making it an environmentally conscious choice for users concerned about their carbon footprint.

User-friendly controls are a characteristic hallmark of the MWC Series, enabling straightforward operation and easy adjustments. The boilers come equipped with a digital display that provides critical system information and diagnostics, streamlining maintenance efforts.

Overall, the Crown Boiler MWC Series, particularly models like the MWC116ENT, MWC116ELT, MWC116ELL, and MWC116ENL, offer an impressive blend of efficiency, flexibility, and advanced technology. These units are designed to meet contemporary heating demands while ensuring sustainable operation, making them a wise investment for comfort and performance in residential and light commercial applications alike. With reliable construction and innovative features, the MWC Series remains a top choice for those seeking effective heating solutions.
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