Kenmore KWX - 4V, KWX - 9V Circulating Pump, Vent Damper, L7148F Electronic Aquastat Control

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CIRCULATING PUMP

Every forced hot-water system requires a circulating pump. A separate pump or zone valve is required for each zone, if you have a two or more zone system. This pump must have the capacity to provide the circulation required by your system. The pump is connected into the return main just ahead of the boiler. It is also wired to the electrical system.

VENT DAMPER

This product is an automatic, motorized stack damper that has been developed to increase the efficiency of heating systems by reducing standby losses from the heating apparatus and the conditioned air space. The damper closes the chimney vent when the burner is off and fully opens it when combustion is required.

L7148F ELECTRONIC AQUASTAT CONTROL

The L7148F Electronic Aquastat Control is an immersion type hydronic controller that provides high limit protection and controls the circulator, gas valve and vent damper. The L7148F Control does not provide a low limit function. An external transformer (ATI50-B), appropriately sized for this application; a sensor (209659A) and an immersion well are required for aquastat operation. The L7148F Electronic Aquastat Control has three states of operation: Normal, High-Limit, and Reset: (The control moves back and forth between the normal and high-limit states, as needed. However, the control only enters the reset state when there is an abnormal condition such as an internal error or shorted sensor). In the L7148E system, the circulator and burner are on any time there is a thermostat call for heat, unless the boiler water temperature exceeds the high limit setting. (The high-limit switch shuts off the burner (B1, B2 output) when the boiler water temperature exceeds the high limit setting). The water temperature limit control is adjustable and may be set as necessary. Turn the High-Limit dial on the control to the desired setting. It may be set as low as 130° F., 140° F. is recommended (refer to page 5 for "LOW DESIGN WATER TEMPERATURE SYSTEMS BELOW 140° F.) or as high as 240 ° F. (we recommend not to exceed 220 ° F., refer to page 19 "ADJUST LIMIT CONTROLS'_. This depends on the type and amount of radiation involved and weather conditions.

ROLLOUT SWITCH (FLAME ROLLOUT SAFETY SHUTOFF)

The rollout switch is a temperature-sensitive fuse link device. It is located on the boiler base just outside the fire box. In the event of heat exchanger flueway blockage causing flame to roll out of the fire box, the fuse does not change in appearance when blown. If the rollout switch blows, it must be replaced with an exact replacement. Check heat exchanger flueways for blockage when restoring system to operating condition. DO NOT operate system without a rollout switch.

SPILL SWITCH (BLOCKED VENT SAFETY SHUTOFF)

The spill switch is a manual reset disc thermostat with a fixed setpoint (340 ° F), and normally closed contacts. It is located at the relief opening of the integral draft diverter. In the event of chimney or venting system blockage causing products of combustion to spill out of the relief opening, the spill switch disc heats up and the spill switch contacts open, shutting down the flow of gas to the main burners by removing power to the gas valve. In the event that the spill switch contacts open, the reset button on the back of the switch will pop up. The spill switch must be reset manually, after the switch has cooled off, by pushing the reset button down. Check the venting system and chimney for blockage when restoring the system to operating condition. DO NOT operate the boiler without a spill switch.

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Contents HOT Water Boiler Sears Installation Warranty Limited 12 Year Warranty on Steam Cast Iron BoilersLimited 20 Year Warranty on HOT Water Cast Iron Boilers Sears Roebuckand CompanyKWX-6V KWX-3V KWX-4VKWX-5V KWX-7VVolume FIG, 2 Minimum Clearance DtmensionsBoiler Fresh AIR Duct Capacities Btuh MAY Cause Premature Failure LOW Design Water Temperature SystemsSeats and SEALS. Overheating this Valve For USE with Cooung UnitsConnecting the Vent Damper Vent Connector Minimum Vent Pipe ClearanceRemoving Existing Boiler from Common Venting System Horizontal Installation Vertical InstallationForsafe,efficientoperation,the vent damper and all flue Manual Operation of the Vent DamperConnecting the GAS Piping Check GassuppChecking the GAS Piping Electric Power Supply Connect Circulator Pump Wiring This page Intentionally Left Blank This page Intentionally Left Blank SuP¥ .OT Neutral Diaphragm Type Expansion Tank Relief ValveExpansion Tank AIR Eliminating Fitting AIR PurgerCirculating Pump Rollout Switch Flame Rollout Safety ShutoffSpill Switch Blocked Vent Safety Shutoff Vent DamperHOW a HOT-WATER System Operates Filling System with WaterWhat to do if YOU Smell GAS Automatic GAS Valve Safety PilotGAS Valve Safety Shutdown Test RelightAdjust Pilot Burner Adjust Limit ControlsSharp Innercones Boiler Flue Passages Cleaning Your Boiler and BurnersBurners Vent PipeInitial Service Checks PWX with Standing PilotStatus Lights Symptom Possible CauseAction For Your Safety What to do if YOU Smell GASThis is a Repair Parts List not a Packing List JACKET- Section and Base Parts3ACKET Section and Base Parts LED & Cover Panel Assembly Jacket Parts Cover Panel / Control BOX Assembly GAS Train Natural Boiler Controls and Piping Honeywell L7148F Trouble Shooting Guide Page HOT Water Boiler

KWX - 7V, KWX - 4V, KWX - 9V, KWX - 3V, KWX - 5V specifications

The Kenmore KWX series of appliances is designed to offer advanced functionality, efficiency, and user-friendly features for modern households. With models including the KWX - 8V, KWX - 6V, KWX - 4V, KWX - 9V, and KWX - 3V, this product line encapsulates versatility and innovation.

The KWX - 8V stands out with its high-efficiency performance. Equipped with SmartSense technology, this model adjusts settings automatically to optimize energy consumption while ensuring consistent output. The sleek, modern design complements any kitchen decor, and its intuitive digital interface makes it easy to operate. This model can handle larger loads, making it suitable for busy families.

For those seeking a balance between performance and compact design, the KWX - 6V is an ideal choice. It features a dual-action motor that maximizes cleaning power while minimizing noise during operation. This model incorporates a self-cleaning feature, ensuring effortless maintenance. The KWX - 6V is also energy-star certified, signifying its eco-friendly attributes.

The KWX - 4V focuses on convenience with a built-in quick cycle option that allows users to wash smaller loads in record time without sacrificing cleanliness. Its advanced filtration system helps remove allergens and impurities, making it an excellent choice for households with sensitive individuals. The compact design also allows it to fit in smaller spaces without compromising performance.

The KWX - 9V is engineered for those who desire high-tech features. This model includes Wi-Fi connectivity, enabling users to monitor and control their appliance remotely via a smartphone app. Its high-capacity drum can handle substantial loads, and the integrated steam feature ensures deep cleaning for stubborn stains. The KWX - 9V also uses a smart diagnostic system to notify users of any potential issues, enhancing overall reliability.

Lastly, the KWX - 3V is tailored for budget-conscious consumers who still want quality and efficiency. With a straightforward interface and essential functions, this model provides reliable performance without extra frills. Its durable construction and efficient energy use make it a smart investment for any home.

Collectively, the Kenmore KWX series models encapsulate a range of features and technologies that cater to diverse needs, from high-capacity cleaning to energy efficiency, making them a great addition to any modern kitchen.
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