37C73U

Water Heater Thermostat Control

Installation Instructions

FOR NATURAL GAS ONLY

RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.

Fixed Adjustment Main and Pilot Regulators

The main and pilot gas regulators require no field service. They automatically control and maintain the outlet main and pilot burner gas pressure.

FOR YOUR SAFETY “WHAT TO DO IF YOU SMELL GAS”

Do not try to light any appliance.

Do not touch any electrical 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.

!WARNING

Do not use this Natural Gas control on a LP Gas water heater. Improper operation could occur, resulting in personal injury and/or death due to Carbon Monoxide poisoning, fire, or explosion. Check for proper gas type as listed on the rating plate affixed to the water heater.

Model

Main Regulator

Pilot Regulator

Flange

Outlet

Flying Leads

37C73U168

3.5" W.C.

4.0" W.C.

1-1/4"

42 KBTU/hr

No Flying Leads

37C73U170

4.0" W.C.

4.9" W.C.

1"

38 KBTU/hr

No Flying Leads

37C73U171

4.0" W.C.

4.0" W.C.

2-1/2"

40 KBTU/hr

No Flying Leads

37C73U172

4.0" W.C.

4.0" W.C.

2-1/4"

40 KBTU/hr

No Flying Leads

37C73U173

4.0" W.C.

4.0" W.C.

1-1/4"

45 KBTU/hr

No Flying Leads

37C73U174

5.0" W.C.

5.0" W.C.

1-1/4"

37.5 KBTU/hr

11" Flying Leads

 

 

 

 

 

 

FAILURETO READ AND FOLLOW ALL INSTRUCTIONS BEFORE INSTALLING OR OPERATINGTHIS CONTROL COULD CAUSE PROPERTY DAMAGE, PERSONAL INJURY AND/OR DEATH.

1.This control must be installed or serviced only by a professional.

2.Do not use force when moving the gas control knob. If you cannot turn the knob with hand pressure only, the control must be replaced.

3.Do not use the control if the knob will not “pop up” after being depressed while the knob is in the PILOT position. The mechanism is damaged and the control must be replaced. Shut off gas to the water heater.

4.For your safety, this control is supplied with tamper resistant screws. Do not attempt to repair or adjust the control. If you experience problems, replace the control immediately. Continuing to use a damaged control could result in fire and/or explosion.

5.An odorant has been added to the gas to help you detect it. Before lighting, search for the odor of gas by sniffing at floor level around the water heater.

6.In some situations, the gas may lose its odor. To detect unodorized gas, you must have a gas detector which can be purchased from your gas company. If you do not have a detector and have the slightest suspicion that gas may be present, get out of the house and call the gas company. DO NOT RELY TOTALLY ON YOUR NOSE.

!WARNING

Scald burns occur in under one second with 160° water, which this thermostat will deliver if the temperature dial is set at “VERY HOT”. Lower settings of the temperature dial will reduce the risk of scald and will reduce your fuel bill.

PART NO. 37-7202A

www.white-rodgers.com

1036

www.emersonclimate.com

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White Rodgers 37C73U installation instructions Retain Instructions for Future Reference, KBTU/hr, 1036

37C73U, 37C73U specifications

The White Rodgers 37C73U is a versatile and highly-regarded programmable thermostat designed to optimize energy usage while ensuring maximum comfort in residential heating and cooling systems. This device represents a fusion of advanced technology and user-friendly design, making it a preferred choice for many homeowners.

One of the main features of the 37C73U is its digital display, which provides clear and intuitive navigation through its various settings. Users can effortlessly program their heating and cooling schedules according to their daily routines, ensuring that their home environment remains comfortable without unnecessary energy expenditure. The thermostat can typically be programmed for multiple time periods throughout the day, allowing for customized climate control that accommodates both personal preferences and efficiency.

The 37C73U employs proprietary adaptive recovery technology, which learns the household's heating and cooling patterns over time. This feature ensures that the desired temperature is met at the right time, preventing overuse of the heating or cooling system while promoting energy savings. By anticipating user needs, the thermostat optimally balances comfort and efficiency.

Another notable characteristic of the White Rodgers 37C73U is its compatibility with a variety of HVAC systems, including conventional forced air, heat pumps, and even some electric baseboard systems. This flexibility allows for widespread use across different home setups, facilitating easier installations and upgrades.

The thermostat also offers features such as filter change reminders and temperature holds, which further enhance its usability. The filter change reminder ensures that homeowners maintain their HVAC systems effectively by keeping track of when filters need replacement, ultimately improving air quality and system efficiency. The temperature hold feature allows users to temporarily adjust the temperature without altering the programmed schedule, providing added convenience during unexpected changes in occupancy or plans.

With its sleek design and straightforward interface, the White Rodgers 37C73U appeals to both tech-savvy users and those who prefer simplicity. It combines thoughtful engineering with practical features, making it a great choice for anyone looking to improve their home's climate control while reducing energy bills. The White Rodgers 37C73U stands out in the competitive thermostat market for its reliability, efficiency, and functionality, catering to the needs of modern homeowners.