WaterFurnace OM1500MW Owner's Manual
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WaterFurnace OM1500MW Owner's Manual

WaterFurnace OM1500MW Owner's Manual

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Summary of Contents for WaterFurnace OM1500MW

  • Page 1 Owner's Manual Residential Products...
  • Page 2 You now own some of the world’s most advanced and valued technologies.
  • Page 4 _______ __________________ ________ For a quick reference, write your WaterFurnace dealer's important information below: Company Name: _____________________________________ Telephone Number: _______________________________ Date of Installation: ___________________________________ Type of Warranty: _________________________________ Unit Model Number:___________________________________ Serial Number: ___________________________________ Type of Loop System (Refer to the loop section of this manual for assistance.)

  • Page 5: Table Of Contents

    ........ABOUT YOUR WATERFURNACE SYSTEM ......... .

  • Page 6: Geothermal System Technology & Benefits

    Your investment in a WaterFurnace system will provide you with many years of benefits including: Energy Savings WaterFurnace units deliver 3 to 4 units of energy for every 1 unit of energy consumed. Many homeowners experience energy savings from 30% to 70% over other ordinary heating and cooling systems. Cost Effective Because of the extraordinary efficiency of a WaterFurnace system, any added investment related to installing a geothermal unit is usually more than offset by your energy savings.

  • Page 7: About Your Waterfurnace System

    ABOUT YOUR WATERFURNACE SYSTEM About Your WaterFurnace System This section includes some detailed information about how geothermal technology works and how the different components used in the system work together to provide you with the finest comfort system available. You'll find useful information about the refrigeration process, loop systems, safety, and warranties.

  • Page 8: How Geothermal Systems Work

    ABOUT YOUR WATERFURNACE SYSTEM How Geothermal Systems Work Geothermal heat pumps utilize some of the same technology found in your home's refrigerator. They are both devices that move heat energy. Your refrigerator removes heat from the food and transfers it to the air in your home. Your geothermal heat pump removes heat energy from the earth to heat your home and removes heat energy from inside your home to cool it.

  • Page 9: Heating Mode

    ABOUT YOUR WATERFURNACE SYSTEM Heating Mode During heating, a geothermal system absorbs the heat from the ground via the earth loop. The heating cycle starts as cold, liquid refrigerant passes through the water-to-refrigerant heat exchanger (coax, and also the evaporator during heating).

  • Page 10: Cooling Mode

    ABOUT YOUR WATERFURNACE SYSTEM Cooling Mode During cooling, a geothermal system rejects the heat from the indoor air into the earth loop. The cooling cycle starts as cold, liquid refrigerant passes through the air coil (the evaporator during cooling). As the refrigerant flows through the air coil, the heat energy transfers from the warm return air to the refrigerant. This heat transfer causes the cold liquid refrigerant to turn into a gas.
  • Page 11 ABOUT YOUR WATERFURNACE SYSTEM Hot Water Assist Many geothermal units installed in homes have an optional feature called a hot water generator. This component removes excess heat from the refrigerant circuit and adds it to a hot water circuit in the unit.

  • Page 12: Typical Installation & Components

    ABOUT YOUR WATERFURNACE SYSTEM Typical Installation and Components Your geothermal system is actually a collection of components working together to perform the heating, cooling and water heating functions. The basic system includes the unit, power supply, a control component, the water circuit and a distribution method.
  • Page 13 ABOUT YOUR WATERFURNACE SYSTEM Open Loop Components Major components in an open loop/well system include: • Geothermal unit placed on mounting pad • Thermostat • Well & pump • Pressure tank • Supply water piping • Discharge water piping with solenoid valves and flow regulators •...

  • Page 14: Closed Loop Systems

    ABOUT YOUR WATERFURNACE SYSTEM Closed Loop Systems Horizontal Loops Horizontal earth loops are used where the space allowed for the loop is not extremely limited. There are various designs of horizontal loops. There is not one type of horizontal loop that is best for every application. The selection of which type to use should be based on system size, space available, soil conditions and the type of excavating equipment used.

  • Page 15: Open Loop Systems

    ABOUT YOUR WATERFURNACE SYSTEM Open Loop Systems Open Loop or Well Water Systems An alternative to closed loops are open loop systems, also known as well-water systems. If your system is an open loop, it uses water that comes into your home from your well.

  • Page 16: Your Loop Location

    ABOUT YOUR WATERFURNACE SYSTEM Your Loop Location It is strongly recommended that you have a record of the location of your earth loop. Using the grid below, draw a bird’s eye view of the property where the loop is located. Include the house and measurements from various points so that there is no question about the location of the piping system.

  • Page 17: Safety Warnings

    ABOUT YOUR WATERFURNACE SYSTEM Safety Warnings WARNING: Equipment used for heating, air conditioning and water heating can cause injury if safety precautions are not observed. These systems generally use a 230 volt power supply which is double the voltage used by other household appliances. Electrical shock from these systems could cause personal injury or death.

  • Page 18: Warranty Explanation

    WaterFurnace offers the best warranty in the industry! WaterFurnace offers some of the industry's best warranties—up to 10 years. In addition to replacement parts coverage, your servicing dealer receives a repair or replacement labor allowance on warranted components in the unit. However, WaterFurnace also offers several other warranty options depending on the needs of the customer.

  • Page 19: Thermostats

    THERMOSTAT OPERATION Thermostats The main control (or interface) between you and your WaterFurnace unit is the thermostat. Electronic thermostats are widely used in today’s heating and cooling systems, replacing old electro-mechanical models containing mercury. In addition to providing more precise temperature control, electronic thermostats can also include many more features and options, along with a more aesthetically-pleasing look.

  • Page 20: Homeowner Maintenance

    Your investment in a WaterFurnace geothermal system was a significant expenditure. While these systems are among the most reliable HVAC systems available, your WaterFurnace system (and any other HVAC system) must be properly maintained in order to achieve maximum performance and long system life (like your automobile). It is recommended that you have your system thoroughly checked by your dealer twice per year (usually Spring and Fall) to maintain optimum performance.

  • Page 21: Troubleshooting

    TROUBLESHOOTING Troubleshooting In the event that your unit is not functioning properly, check the fault lights and troubleshooting information below. After determining that a service call is required, call your dealer for an appointment. When calling the dealer, it is beneficial to provide your model number and indicate any fault lights that are "on"...

  • Page 22: Faqs, General Information & Operating Tips

    Your unit is controlled by one or more thermostats. Thermostats sense the temperature in the room in which they are located, and determine the mode of the unit (heating or cooling) and control the duration of the cycle. WaterFurnace offers a variety of thermostats, and while each one operates on the same principle their settings, buttons and commands are different.
  • Page 23 The appropriate status light on the unit will continue indicating the fault until power is interrupted to the unit. This serves as a diagnostic aid for your dealer. If the unit shuts down again, call your WaterFurnace dealer as soon as possible. Do not repeatedly reset your unit. What if my unit does not operate properly? Before you call your WaterFurnace dealer for service, check these service hints: •...
  • Page 24 FAQ, GENERAL INFORMATION & OPERATING TIPS What is a "lockout"? A lockout occurs when the unit has faulted and cannot correct itself. This mode protects the unit from further damage. During lockout mode, Emergency Heat will be activated to provide heating if necessary. What about air filters? One of the most important things you can do to ensure long system life, high performance and clean indoor air is to keep the air filter clean.
  • Page 25 FAQ, GENERAL INFORMATION & OPERATING TIPS If my system includes an auxiliary heater, what does it do and why was it used? Your system may include an auxiliary heater (mounted either internally or externally depending on the model) which is used for two purposes: •...
  • Page 26 An adequate water supply to the unit is very important. Do not let anyone disrupt the water supply by rerouting the supply line or tapping into it without first checking with your WaterFurnace dealer. If the well pumping system requires service or is inoperable, your unit should be turned off or placed into emergency heat until an adequate water supply is restored.
  • Page 27 FAQ, GENERAL INFORMATION & OPERATING TIPS Why does the unit run more/longer than a gas furnace? The amount or percentage of time that your unit is actually heating or cooling is called Run Time. To achieve maximum comfort during heating, geothermal systems will typically have a longer run time than a natural gas or propane furnace. That’s because geothermal systems will deliver a more moderate air temperature instead of the hot blast of air from a gas furnace.
  • Page 28 IntelliZone System. This system uses several thermostats throughout the home and has motorized dampers that are electronically controlled. The dampers deliver properly balanced air flow and desired temperatures throughout the various zones. For more information on zone control systems, contact your WaterFurnace dealer. What about remodeling & room additions? Because your system has been selected, designed and installed based on the existing heating and cooling requirements of your home, a significant change or addition to the home may result in the system being inadequately sized.

  • Page 29: Faqs, General Information & Operating Tips

    FAQ, GENERAL INFORMATION & OPERATING TIPS What about humidity control? Geothermal units do an excellent job of removing humidity during cooling. This results in better comfort. However, during heating (depending on your home and outdoor air temperatures) you may experience the effects of having too little humidity indoors.

  • Page 30: Energy Saving Tips

    ENERGY SAVING TIPS Energy Saving Tips Now that you’ve invested in the most energy efficient heating and cooling system available, here are some additional tips to help you save money on your energy costs throughout your entire home. Fluorescent Lights Fluorescent lights use a fraction of the amount of energy as incandescent bulbs.

  • Page 31: Glossary

    GLOSSARY Glossary Learn to speak like your favorite HVAC contractor using these key terms. Heat Gain: The amount of heat (BTUs/hr) that is absorbed AFUE (Annual Fuel Utilization Efficiency): The efficiency percentage of fossil fuel furnaces. Includes cycling and by the home during hot weather, requiring removal by the fuel losses and other factors.

  • Page 32: Preventive Maintenance Service Record

    PREVENTIVE MAINTENANCE SERVICE RECORD Preventive Maintenance Service Record In order to keep your system operating at peak performance levels, WaterFurnace recommends that you take advantage of your dealer's planned maintenance program. This will normally include semi-annual preventive maintenance checks. Date of 1st...
  • Page 33 Join the Owner's Club We’re creating a very special club for WaterFurnace owners! You’ll receive access to exclusive benefits and WaterFurnace giveaways. To be among the very first members, visit mywaterfurnace.com and sign up.
  • Page 34 Need help? If you happen to have questions or issues with your WaterFurnace product please start with the contractor who installed your system. If you need further assistance, call (800) 934-5667 to speak with our Consumer Relations department.
  • Page 35 Additional Notes:...
  • Page 36 Additional Notes:...
  • Page 37 Additional Notes:...
  • Page 38 Printed with 10% post-consumer waste recycled paper WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifications without notice. © 2014 WaterFurnace International Inc.

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