Amana VR8205 VIlI. Circulating Air and Filters, Control Module, Heat Anticipator Setting

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HEAT ANTICIPATOR SETTING

Adjust the heat anticipator in the room to obtain the proper number of heating cycles per hour. The heat anticipator is a wire-wound adjustable heater that prevents the room temperature from “overshooting” the room thermostat set- ting. The heat anticipator must be set at 0.7 amps. The heat anticipator is part of the thermostat. If the thermostat fails for any reason, replace the thermostat.

LINE VOLTAGE CONNECTION FOR OPTIONAL HUMIDIFIER AND ELECTRONIC AIR CLEANER

The control module is equipped with line voltage accessory terminals used for controlling the power to an optional field- supplied humidifier and/or electronic air cleaner.

Accessory Load Specification

Air Cleaner: 1.0 Amp max. at 120 VAC

Humidifier: 1.0 Amp max. at 120 VAC

Accessory Installation:

Follow the electronic air cleaner and humidifier manufactur- ers’ instructions for mounting and electrically grounding these accessories. Check that the power supply to the furnace has been disconnected. Wire the accessories to the control module as shown below. All connections to the control module are to be made through 1/4 inch female terminals.

If it is necessary to supply additional line voltage wiring to the interior of the furnace, the wiring must comply with all local codes. This wiring must have a minimum temperature rating of 105°C and must be routed away from the burner compartment. All line voltage wire splices must be made inside the furnace junction box.

Control Module

 

 

 

Hot 120 VAC

 

 

 

 

 

 

Neutral

 

 

 

 

 

 

 

 

120 VAC

 

Cool

Heat

Park

Park

Line

Transformer

EAC

Hum

 

 

 

 

Cir

Line

Transformer

EAC

Hum

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AccessoriesOptional {

 

 

 

Air

 

 

Cleaner

 

 

 

 

 

 

 

 

 

 

 

 

Humidifier

Figure 24

Line Voltage Connection for Accessories

Accessory Operation: The furnace control module ener- gizes the humidifier whenever the induced draft blower is energized (when an air cleaner is installed on the system, the humidifier is not energized until the air cleaner is energized). The control module energizes the air cleaner whenever the air circulation blower is energized.

VIlI. Circulating Air and Filters

DUCTWORK - AIR FLOW

Duct systems and register sizes must be properly designed for the CFM and external static pressure rating of the furnace. Ductwork should be designed in accordance with the recommended methods of “Air Conditioning Contrac- tors of America” Manual D.

A duct system must be installed in accordance with Stan- dards of the National Board of Fire Underwriters for the Installation of Air Conditioning, Warm Air Heating and Ventilating Systems. Pamphlets No. 90A and 90B.

A closed return duct system must be used, with the return duct connected to the furnace. Supply and return con- nections to the furnace may be made with flexible joints to reduce noise transmission. To prevent the blower from interfering with combustion air or draft when a central return is used, a connecting duct must be installed between the unit and the utility room wall. A room, closet, or alcove must not be used as a return air chamber.

When the furnace is used in connection with a cooling unit, the furnace should be installed in parallel with or on the upstream side of the cooling unit to avoid condensation in the heating element. With a parallel flow arrangement, the dampers or other means used to control the flow of air must be adequate to prevent chilled air from entering the furnace and, if manually operated, must be equipped with means to prevent operation of either unit unless the damper is in the full heat or cool position.

When the furnace is installed without a cooling coil, it is recommended that a removable access panel be provided in the outlet air duct. This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for visual light inspection or such that a sampling probe can be inserted into the air- stream. The access panel must be made to prevent air leaks when the furnace is in operation.

When the furnace is heating, the temperature of the return air entering the furnace must be between 55°F and 100°F.

When a furnace is installed so that supply ducts carry air circulated by furnace to areas outside the space containing the furnace, the return air shall also be handled by a duct sealed to the furnace casing and terminating outside the space containing the furnace.

Filters - Read This Section Before Installing The Return Air Ductwork

Filters must be used with this furnace. Discuss filter main- tenance with the building owner. Filters do not ship with this furnace, but must be provided by the installer. Filter(s) must comply with UL900 or CAN/ULCS111 standards. If the furnace is installed without filters, the warranty will be voided.

The following chart shows recommended minimum filter sizes for each furnace model. Larger sizes are also accept- able.

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Contents Installation Instructions Table of ContentsTo The Installer To The OwnerSafety and Unit Location Additional Safety ConsiderationsII. General Information III. Air RequirementsPage Specially Engineered Installations IV. Category I Venting Vertical VentingLouvers and Grilles Upflow Rotated Induced Draft Blower Counterflow Rotated Induced Draft BlowerBlower Assembly Masonry ChimneysTypical Multiple Flue Clay Tile Chimney Checklist Summary Termination 10 Feet Or Less From Ridge Wall or ParapetCheck 1 Proper Chimney Termination Check 5 Liner Condition Check 4 Debris in CleanoutTermination More Than 10 Feet From Ridge Wall or Parapet Check 3 Chimney Crown ConditionFIX 1 Liner Termination Check 7 Complete the InstallationCheck 6 Dilution AIR FIX 2 -CHANGE Venting ArrangementsVI. Gas Piping GAS PipingGas Inlet Through Furnace Right Side Upflow InstallationsGeneral Furnace Layout Gas Inlet Through Furnace Bottom Side UpflowCounterflow Installations Gas Inlet Through Right Side CounterflowChecking GAS Piping Propane Gas Installation TypPropane GAS Piping Charts Tanks and Piping Propane GAS UnitsJunction Box Left Side VIl. Electrical WiringTypical Field Wiring VAC Control Circuit Junction BoxTerminals Heating Fan Off AdjustmentsLow Voltage AIR Circulation Blower FAN TimingVIlI. Circulating Air and Filters Line Voltage Connection for AccessoriesHeat Anticipator Setting Control ModuleBottom Return Filter Sizes Return Air Plenum InstallationUpflow/Horizontal Furnaces Furnace Mounted Filter RackLight Signal Operation Number Integrated Ignition Control Diagnostic Signal ChartTiming Chart for Normal Cooling Operation Refer to AbnormalStart-Up, Adjustments, and Checks IX. Sequence of Operation Integrated Ignition ControlCounterflow Furnaces Right To Left Installation Left To Right InstallationRollout Protection Device Auxiliary Limit Control Figure Auxiliary Limit ControlBurner BOX Abnormal Operation Integrated Ignition ControlRobertshaw Model Gas ValvesHoneywell Model VR-8205 White Rodgers Model 36E36 Operating InstructionsWhite Rodgers Model 36E22 Measuring Inlet Gas Pressure Alternate MethodHigh Limit Control AIR Filter XI. MaintenanceFilter Removal AIR Filter Upflow FurnacesFurnace mounted Filter Rack Counterflow Burners Cleaning of Burners Qualified Servicer onlyBurner Flame General Information

VR8205 specifications

The Amana VR8205 is a robust and innovative gas valve designed for use in a variety of heating applications, particularly in residential and commercial HVAC systems. This versatile valve offers a combination of advanced technologies and user-friendly features, making it a popular choice among HVAC professionals and system installers alike.

One of the key features of the Amana VR8205 is its two-stage operation, allowing for precise control of gas flow. The dual-stage design enables the valve to modulate the gas supply based on the heating demand, which enhances system efficiency and promotes better temperature regulation. This feature not only contributes to energy savings but also helps maintain a comfortable indoor environment.

Additionally, the VR8205 is equipped with a strong, durable body construction that ensures reliability and longevity. Designed to withstand harsh operating conditions, the valve’s materials are resistant to corrosion and wear, making it suitable for various applications. The robust design of the Amana VR8205 minimizes the likelihood of leaks or failures, providing peace of mind to both installers and end-users.

The valve operates on low voltage, typically requiring 24 volts, which makes it energy-efficient and compatible with most modern thermostatic control systems. This low-voltage operation also simplifies installation, as it reduces the complexity and requirements for the electrical setup.

Another noteworthy characteristic of the Amana VR8205 is its integrated safety features. It includes a combination of automatic and manual shut-off mechanisms, providing an added layer of safety in case of malfunctions. This ensures that the gas supply can be quickly halted in emergency situations, protecting both people and property.

Moreover, the Amana VR8205 is designed for easy maintenance, featuring simple access points for servicing and troubleshooting. This ease of maintenance is crucial for HVAC professionals, as it allows for quick adjustments and repairs, ultimately reducing downtime.

Lastly, the Amana VR8205 has a reputation for adaptability, being compatible with various heating appliances, including furnaces, boilers, and water heaters. Its versatility makes it an excellent solution for a wide range of heating applications, ensuring optimal performance across different systems.

In summary, the Amana VR8205 gas valve is characterized by its two-stage operation, durable construction, low-voltage functionality, integrated safety mechanisms, and ease of maintenance. These features combine to offer a reliable, efficient, and flexible solution for modern heating needs.
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