Owner s Manual Geothermal Heating Cooling Hot Water 13
Contents System Benefits 2 How GeoExchange Systems Work 3 GeoExchange System Types 4 WaterFurnace Quality Commitment 5 Warranty 5 Operating Procedures 6 Synergy3 Status Lights 7 System Maintenance 9 Resetting the Unit 10 Operation Service Hints 10 Quick Reference Card 11 1
Your WaterFurnace Synergy3 unit: the best in heating, cooling and hot water technology Thank you for purchasing a WaterFurnace Synergy3 unit. You have joined hundreds of thousands of smart owners all over the world who have discovered that WaterFurnace GeoExchange SM systems are ideal for heating, air conditioning, and for making hot water. It s the only system that does it all in one unit. GeoExchange technology is ideal because it delivers what you want and what our world needs: lowest operating cost of any heating, cooling and hot water system most energy efficient system available very comfortable with even temperature and humidity control quiet operation with no noisy outside equipment precise temperature control highly reliable with industry-proven components safe and clean with no flame, chimney or odors backed by the industry s best warranties low maintenance requirements improves the environment by not burning fossil fuels no carbon monoxide emissions Energy Efficient GeoExchange systems are extremely energy efficient since they only use electricity to power the pump, compressor and fan. These components transfer heat stored within the earth. As a result, GeoExchange systems use far less electricity than outdoor air-to-air heat pumps and conventional systems. In fact, they typically deliver about 3 to 4 times more energy than they consume. Environmentally Beneficial GeoExchange systems are also environmentally advantageous because they don t burn fossil fuels, eliminating greenhouse gas emissions into the air. They use far less refrigerant than air-to-air heat pumps or air conditioners, and are factory sealed to prevent leakage. And, they reduce the need for more coal-fired or nuclear power plants by placing less energy demand on current capability to produce electricity. You ve made the ideal choice for everyone! 2
How does GeoExchange energy keep me warm in the winter and cool in the summer at savings of 30 to 60% over my current energy costs? No matter where you live, the underground temperature stays relatively constant all year, even though outdoor temperatures vary greatly. GeoExchange systems harness the free, renewable, natural supply of energy stored underground and uses it for heating, air conditioning and hot water. One system keeps you comfortable in both winter and summer. The basic principle of a GeoExchange system is to transfer heat produced by the sun and stored within the earth into the structure during winter, and to remove heat from indoors in summer and return it to the cooler earth. Water is used to carry this heat either by circulating through an underground closed loop piping system or by directly pumping ground water. During the Heating Season Water circulating through a loop of underground pipe absorbs heat from the earth and carries it to the unit which extracts the heat and compresses it to a higher temperature. This heat energy is transferred to either air or water. Using a forced air duct system, the warm air is distributed throughout the structure. When this heat energy is added to water, warm water is circulated in pipes embedded under floors to heat the space. During the Cooling Season The Synergy3 unit extracts heat from the air within the structure, dehumidifies it and transfers it to the circulating water in the underground loop system where it is dissipated into the cooler earth. Hot Water Options The flexibility of the WaterFurnace Synergy3 unit makes it adaptable to many applications. Hot water is generated very efficiently and can be used for a variety of sources. Often, the unit is connected to a series of pipes embedded in (or under) the floor. Warm water is circulated through the pipe to warm the area. In other applications, hot water can be generated for domestic use, or for hot tubs or spas. When the unit is set up to make domestic hot water, a secondary heat exchanger must be used. Secondary heat exchanger usage must conform to all state/provincial and local code requirements. When using Synergy3 for potable water heating, entering source (loop) water temperature should not exceed 70 o F. 3
Is there more than one way to install GeoExchange? There are several different methods used to install a GeoExchange system. Your independent WaterFurnace dealer has selected and designed the right one for your application. Our dealers have been thoroughly trained on GeoExchange applications and are supported by the industry s best computer software to ensure that you receive the right system. Open Loop Systems Open Loop A GeoExchange open loop system uses ground water as a direct energy source when good quality well water is available at a reasonable pumping depth. A good water discharge system is also required, such as a ditch, field tile, pond or stream. An open loop system may require periodic inspection/cleaning to prevent buildup of mineral deposits. Closed Loop Systems The GeoExchange closed loop system is an underground network of sealed, high-strength plastic pipe filled with a water/antifreeze solution. During cooling, heat is removed from the building and dissipated into the cooler earth. For heating, low-intensity heat energy is absorbed from the earth, intensified, and delivered into the structure. A closed loop system uses a small, low-wattage pump to circulate the liquid. Closed loops can be installed in the ground horizontally in a trench, vertically in drilled holes or submerged in a pond or lake. All three are sealed airtight and, when designed properly, produce similar efficiencies. Pond Loop Horizontal Loop Vertical Loop 4
What about quality? WaterFurnace Committed to Total Quality Assurance You can rest easy knowing that each Synergy3 unit is computer run-tested in all operating modes to ensure efficiency and reliability. Each unit carries an exclusive Quality Assurance emblem which is personally signed to verify our commitment to quality and to your comfort. Your Synergy3 unit is also built with the industry s highest quality components and meets the quality standards of industry bodies, such as: Air Conditioning and Refrigeration Institute ETL Testing Laboratories What about my warranty? You ve Got the Best in the Industry! WaterFurnace International provides each Synergy3 residential owner with the best standard warranty in the industry. This warranty provides 5-year coverage on all unit parts. Optional extended warranties covering parts and labor are available. Contact your WaterFurnace Dealer. Installations in commercial buildings and accessories like thermostats and flow centers carry separate warranties. Please read all warranty certificates carefully to familiarize yourself with the terms of the warranty so that you obtain full benefits and avoid misunderstandings. If you have any questions about warranty coverage, contact your WaterFurnace dealer. Your Synergy3 warranty registration card must be returned to WaterFurnace International immediately after installation to receive full warranty benefits. 5
Operating Procedures To enjoy all the benefits of your WaterFurnace system, please review the following operating procedures, service tips and information. You ll find your system easy to operate and simple to maintain at its peak performance. However, if you have any questions or problems, contact your WaterFurnace dealer. What do I need to know about my thermostat? There are many different thermostats that are compatible with your WaterFurnace unit everything from a simple manual changeover style to a sophisticated electronic programmable model. The thermostat(s) selected for your system is designed to provide accurate control of room temperature. In addition, it will display current room temperature. Due to the wide variety of thermostats available in this manual, we are unable to provide detailed instruction on the operating features of different models. Therefore, the information provided here is general in nature. For detailed instructions of other thermostats, contact your WaterFurnace dealer. General Information The thermostat normally displays room temperature and modes of operation. Complete control of the system is done by adjusting the dials, buttons or by using the keypad. Your thermostat can be set to perform the following functions: cooling, heating and heating with auxiliary or emergency heat (if this option has been installed with your unit). You may select different heating and cooling set points for the system to maintain, e.g. 70 o F in heating and 75 o F in cooling (20 and 23 o C). Raising and lowering the temperature can be done by turning the dial or pushing the appropriate buttons. Always allow at least five minutes between changing from heating to cooling operation or from cooling to heating operation in order to prevent damage to your unit. Many thermostats have fault light indicators to signal problems in unit operation. If a fault signal is present on the thermostat, see resetting the unit section, page 10. Refer to the information included with your thermostat for specific operating instructions. What do I do in case of a power failure? Don t worry. Standard thermostats do not require resetting. Most electronic thermostats have a back-up battery system that maintains your settings in the event of a power loss. When power is restored, the thermostat will continue operating as if the power had never been interrupted. However, there will be no heating, cooling or hot water generation during the outage. 6
What if my unit stops working? Your unit has been equipped with self-protection devices and controls. Should you suspect that heating, cooling or hot water operation has ceased, look at the thermostat or the fault lights located on the unit. If you see a fault signal on the thermostat or on the unit, see resetting the unit section, page 10. What do I need to know about the unit itself? Your Synergy3 unit is equipped with a variety of information and warning lights known as STATUS lights. These lights are mounted in plain view on the front left corner of your unit. They will help you properly identify any problems and what might be required to correct the situation. These lights will: help determine whether your system is operating correctly help identify any problems help determine if you can fix the problem yourself and avoid a service call save you time and expense when you need to call an independent WaterFurnace dealer by helping them identify the problem before they come out Status light descriptions and service tips Drain When this light comes on, it indicates that the condensate drain pan within the unit has reached the overflow level. This may be caused by foreign matter blocking the drain pan opening. Water Flow A sensor protects your unit against Status Lights internal freeze-up caused by a water flow loss in the heating mode. When the WATER FLOW light is on, this signals that internal freezing conditions have occurred. This may be caused by a pump failure, low antifreeze level or air pockets in the loop piping (see resetting the unit section, page 10). 7
Low Pressure When this light is on it indicates a loss in refrigerant pressure in the system. This may be caused by a refrigerant leak (see resetting the unit section, page 10). This could also be a signal of low pressure in cooling, due to a dirty filter. High Pressure When this light is on it indicates high refrigerant pressure. This may be caused by a loss of water flow in the cooling mode or low airflow in the heating mode. This could also be a signal of high pressure in heating, due to a dirty filter. Airflow When this light is on it indicates an airflow problem. Contact your WaterFurnace dealer. Status A blinking STATUS light indicates that the microprocessor control, which is the brain of the unit, is operating properly. If the light doesn t flash but remains continuously on or off, the control is inoperative. Turn off all power to the unit, including auxiliary heat, and then turn it back on. If the light remains continuously on or off, call your WaterFurnace dealer. HW Switch When the pump switch is off, your unit s hot water system is disabled, and HW OFF status light will be lit. This switch may be used when the water heater is being serviced or replaced. This switch must be turned off when water flow from the water heater to the Synergy3 unit is turned off or disconnected. Damage to the pump may otherwise occur. What kind of safety controls does my unit have? Your WaterFurnace Synergy3 unit is equipped with safety controls which are designed to protect the unit in case of improper airflow, water flow or refrigerant charge. These safety controls should not be bypassed by anyone. Doing so may void the warranty. 8
How do I maintain my system? Caution: Before you perform any maintenance to your system, turn off all electrical power to the unit. There may be separate supplies one for the unit and one or two for the auxiliary heat. Filters Check your filters every 60 days. A dirty filter will cause your unit to work harder than necessary, waste energy and may cause premature component failure. To achieve optimum performance and economical operation, change your replaceable type filter if you see a buildup of dust or dirt. If you have opted for a permanent electrostatic filter, wash it with a garden hose at least every 60 days. When placing the filter back in the slot, be sure that the arrow on the filter frame points toward the Synergy3 unit. Never operate the unit without a filter; this will void the warranty. Water Supply for Well Water Systems 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 until an adequate water supply is restored. Water Supply For Closed Loop Systems Typically, no regular maintenance is required. However, if your loop is ever damaged by excavation, contact your WaterFurnace dealer. Drain Pan In the cooling mode, moisture removed from the air forms as condensation on the air coil and the resulting water runs down to the condensate drain pan. Lint and dirt can sometimes build up in the drain pan causing the drain to plug. If overflow occurs, the DRAIN light will come on and the system will shut down. Call your WaterFurnace dealer for service. 9
What about regular service? Synergy3 Owner s Manual Your Synergy3 system requires no regular maintenance. However, you should periodically have the unit inspected by an independent WaterFurnace dealer. They will check the unit s performance and make sure that your Synergy3 unit is operating at its peak performance level. If your unit is using a well as its water supply, your unit may need periodic cleaning to remove mineral deposits. If my unit shuts off, how do I reset it? In the event of a fault, the appropriate status light on the unit will illuminate. Turning off the power supply to the unit erases the fault light illumination on the unit. The fault lights serve as a diagnostic aid to your dealer. To reset the unit, set thermostat to Off position for 60 seconds. After 60 seconds, set thermostat to On (operational mode). Unit operation should resume within five minutes if heating, cooling or hot water is required. Caution: If the unit shuts down again due to a fault condition, call your WaterFurnace dealer as soon as possible. Do not repeatedly reset your unit. Doing so may cause damage. What if my unit does not operate properly? Before you call your WaterFurnace dealer for service, check these service hints: Check air filters. Depending upon filter type, clean or replace if necessary. Make sure the thermostat is set properly. Check to make sure the electrical disconnect switches are in the On position. Both the unit and auxiliary heat (if present) must be powered for proper operation. Check for a tripped circuit breaker or a blown fuse in your home or building s main power box. Reset breaker or replace fuse. If either the disconnect switch or the circuit breaker continues to go off after you reset them, call your WaterFurnace dealer immediately to prevent damage to your unit. Check the thermostat indicator lights to ensure proper operation of the system. Check the unit status lights on the corner of the unit to ensure the unit is operating properly. If you can t determine the problem, call your WaterFurnace dealer promptly. 10
Dealer: Telephone Number: Date of Purchase: Type of System: Closed Loop Open Loop Well Water Pond Loop Auxiliary Heat: Yes No If yes, what kw? Loop Length: Unit Model #: Serial #: Options: Extended Warranties: Equipment Loop Once again, thank you for purchasing a WaterFurnace GeoExchange heating and cooling system you ve made the best choice for yourself and the environment. 11
14 Synergy3 Owner s Manual
9000 Conservation Way Fort Wayne, IN 46809-9794 Phone: 1-219-478-5667 or 1-800-934-5667 FAX: 1-800-783-5667 In Canada: 1-800-463-8108 http://www.waterfurnace.com Owner s Manual 96P642A01 1/99 WaterFurnace has a policy of continuous product research and development and reserves the right to change design and specifications without notice. WaterFurnace is a registered trademark and Synergy3 is a trademark of WaterFurnace International, Inc. 1999 WaterFurnace International, Inc. 12