Crown Boiler MWC116ENT, MWC Series, MWC116ENL, MWC116ELL manual For Your Safety Read Before Operating

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MWC Series Lighting and Operating Instructions

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

AThis appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

BBEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

---Do not try to light any appliance.

---Do not touch any electric switch; do not use any phone in your building.

---Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

---If you cannot reach your gas supplier, call the fire department.

CUse only your hand to push in or turn the gas control knob.

Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician.

Force or attempted repair may result in a fire or explosion.

DDo not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS

1.STOP! Read the safety information above on this label.

2.Turn off all electric power to the appliance.

3.Set the thermostat to lowest setting.

4.This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

5.Close main gas shut off valve.

6.Wait five (5) minutes to clear out any gas. Then smell for gas including near the floor. If you smell gas STOP! Follow “B” in the safety information above on this label.

If you don’t smell gas, go to next step.

7.Open the main gas shut off valve and the valve on the domestic cold water inlet pipe.

8.Turn on the electricity supply to the boiler, switching on the circuit breaker. The appliance

operation light 1 (figure 1) will flash every 4 seconds (stand---by condition).

9.If the boiler is to be used for c.h and d.h.w position the function selector 2 as in figure 2. The appliance operation light 1 will flash every 2 seconds (operating boiler).

Position the knobs 2 and 3 for the desired c.h. and d.h.w. temperature (for detailed information see the user manual).

10.If the boiler is to be used for d.h.w. only position the function selector 2 as in figure 3. The appliance operation light 1 will flash every 2 seconds (operating boiler).

Position the knob 3 for the desired d.h.w. temperature (for detailed information see the user manual).

11.If the appliance will not operate, follow the instructions “To turn off gas to appliance” and call your service technician or gas supplier.

1

2

1

3 (Combi Only) 2

1

3 (Combi Only)

2

 

Figure 1

 

Figure 2

 

Figure 3

 

TO TURN OFF GAS TO APPLIANCE

1.Turn off all electric power to the appliance if service is to be performed.

2.Turn the boiler off by setting the function selector 2 to the position shown in figure 1.

3.Set the thermostat or other operating control to lowest setting

4.Close the main gas gas shut off valve and the valve on the domestic cold water inlet

pipe.

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Contents MWC Series Page Table of Contents Product Description Key ComponentMWC Boiler Principle Components Maximum Vent Lengths II SpecificationsRatings 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 VII Venting Vent System DesignPage Horizontal Concentric Venting Vent Options 3a Crown Concentric 60/100 Vent Components Vent Options 1,2 3b Crown Concentric 80/125 Vent Components Vent Options 3,54c 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 Condensate Trap and Drain Line 40 Condensate Piping ArrangementViii Gas Piping Gas Connection To Boiler IX System Piping Standard PipingBasic Piping Relief Valve Installation Piping for Special Situations Internal Boiler PipingPrimary-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 XII Start-up and Checkout Location of Automatic Air Vent CapLocation of Circulator Shaft Cover Control Panel Page Inner Cover Removal For Your Safety Read Before Operating MWC Series Lighting and Operating InstructionsHigh Fire Combustion Readings Xiii Operation DHWHeating System Knob Sequence of Operation Also Refer to Figures 9.7, 9.8, 10.3 See Part XV for Error Codes Flash Codes During Normal OperationXIV. Service and Maintenance Removing Combustion Chamber Cover Service Notes InducerCondensate Trap Removal XV. Troubleshooting No Error Code DisplayedError Codes Lamp Number Flame Meaning Corrective ActionFlow 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.