Bradford-White Corp M-2-50T6DS service manual Service Procedure RE-III

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SERVICE PROCEDURE RE-III

Residential Thermostat Testing

Double Element, Non-Simultaneous, Three Phase Operation.

Water In Tank Is Cold With Power ON.

WARNING

High voltage exposure. Use caution to avoid

personal injury during this procedure.

1.This procedure assumes line voltage, ECO and elements are in working order.

2.Turn power “ON” to water heater.

3.Set multi-meter to “Volts AC”.

4. Check across terminals L4 and T2 of upper thermostat (see illustration 13).

A)Rated voltage NOT present, Recheck ECO. If ECO is okay, replace thermostat.

B)Rated voltage IS present, proceed to next step.

5.Check across element terminals (see illustration 14).

A)Rated voltage NOT present, check wire connections from thermostat to element.

B) Rated voltage IS present,

Illustration 13

Repeat element testing,

 

see page 15.

 

Tank Does Not Deliver Enough Hot Water.

1.This procedure assumes line voltage, ECO and elements are in working order.

2.Turn power “ON” to water heater and set multi-meter to “Volts AC”

3.Adjust temperature setting of upper thermostat to the highest setting. Water temperature in tank must be below thermostat setting for this test.

4.See illustration 13 above, check voltage across terminals L4 & T2 of upper thermostat.

A)Rated voltage IS present, okay, upper thermostat is calling for heat. Go to step 5 below.

B)Rated voltage NOT present, replace upper thermostat.

5.Adjust temperature setting of upper thermostat to the minimum setting. Water temperature in tank must be above thermostat setting for this test.

6.Check voltage across terminals T4 of upper thermostat & L3 of lower thermostat (see illustration 15).

A)Rated voltage NOT present, replace upper thermostat.

B)Rated voltage IS present, upper thermostat is okay. Go to step 7 on next page.

Illustration 14

Illustration 15

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Contents Troubleshooting Guide Instructions for Service Table of Contents RED Black General InformationWattage Limitations at Various Voltages Surface Mounted Thermostats Sequence of Operation- Single Element Operation Sequence of OperationNon-Simultaneous and Simultaneous Operation Circuit two Thermostat closed At terminal T4 At terminal T2 Thermostat open At terminal T2 From Off Peak Meter Troubleshooting Quick Step Plan to Hot Water Line Voltage & High Limit ECO Testing Service Procedure RE-IHeating Element Testing Service Procedure RE-IIWater In Tank Is Cold With Power on Service Procedure RE-IIIDouble Element, Non-Simultaneous, Single Phase Operation Be sure thermo stats are reset to their original Service Procedure RE-III Service Procedure RE-III Double Element, Simultaneous, Three Phase Operation Service Procedure RE-III Turn power on to water heater Set multi-meter to Volts AC Be sure thermo stats are reset to their original Service Procedure RE-IV Be sure thermostats are reset to Double Element, Simultaneous, Single Phase Operation Service Procedure RE-IV Tank Does Not Deliver Enough Hot Water Service Procedure RE-IV Service Procedure RE-IV Service Procedure RE-IV Thermostat Removal Service Procedure RE-VHeating Element Removal Anode Inspection and Replacement Service Procedure RE-VIIGeneric Parts List Page Page Page Parts@bradfordwhite.com Techserv@bradfordwhite.com

M-2-50T6DS specifications

Bradford-White Corp is renowned for its commitment to quality and innovation in water heating solutions, and the M-2-50T6DS model exemplifies this philosophy. Designed to meet the needs of both residential and light commercial applications, this 50-gallon gas water heater is engineered for efficiency, reliability, and ease of use.

One of the standout features of the M-2-50T6DS is its high recovery rate, which is achieved through a powerful atmospheric vent design that allows for quick heating of water. The heater’s 40,000 BTU per hour input ensures that there is always a sufficient supply of hot water available when needed. This makes the unit ideal for households with multiple bathrooms or for commercial settings where high hot water demand is common.

The Bradford-White M-2-50T6DS incorporates a state-of-the-art ignition system known as the Direct Spark Ignition (DSI). This technology provides a reliable start-up with minimal energy consumption, enhancing both safety and efficiency. The DSI system reduces the risk of pilot light outages and simplifies the ignition process, making it user-friendly.

In terms of construction, the M-2-50T6DS is built with a robust design featuring a glass-lined tank for superior corrosion resistance. This durable tank is insulated with CFC-free foam, ensuring optimal heat retention and minimizing energy loss. Coupled with the unit's Energy Factor rating, it reflects Bradford-White's dedication to energy efficiency, offering long-term savings on utility bills.

Another notable characteristic is the heater's integrated thermal expansion tank, which helps manage water pressure and reduces damage to your plumbing system, thereby enhancing the overall longevity of both the heater and your home’s plumbing infrastructure.

Safety is a priority with the M-2-50T6DS as well. The model is equipped with a dual-sensor thermostat that monitors the temperature and adjusts accordingly to prevent overheating. Additionally, it features a temperature and pressure relief valve for added safety, ensuring that the unit operates within safe parameters.

In summary, the Bradford-White M-2-50T6DS water heater epitomizes advanced engineering and high performance. With a focus on efficiency, reliability, and safety, this model is an excellent choice for anyone in need of a dependable source of hot water, demonstrating Bradford-White's unwavering commitment to quality in the water heating industry.
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