These furnaces comply with requirements embodied in the American National Standard / National Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. ® US C INSTALLATION & OPERATING INSTRUCTIONS for AMV8 AND ADV8 GAS FIRED WARM AIR FURNACE 2-STAGE (CATEGORY 1) RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION. ATTENTION INSTALLING PERSONNEL As a professional installer you have an obligation to know the product better than the customer. This includes all safety precautions and related items.
Table of Contents TO THE OWNER ....................................................................................................................................................... 4 TO THE INSTALLER ................................................................................................................................................... 4 TRANSPORTATION DAMAGE .........................................................................................................................................
Table of Contents PROPANE GAS PIPING CHARTS ................................................................................................................................. 21 X. CIRCULATING AIR AND FILTERS ................................................................................................................................. 21 DUCTWORK - AIR FLOW ............................................................................................................................................
TO THE INSTALLER WARNING Before installing this unit, please read this manual thoroughly to familiarize yourself with specific items which must be adhered to, including but not limited to: unit maximum external static pressure, gas pressures, BTU input rating, proper electrical connections, circulating air temperature rise, minimum or maximum CFM, and motor speed connections, and venting. These furnaces are designed for Category I venting only.
3. Service integrated control module or connecting wiring following the discharge process in step 2. Use caution not to recharge your body with static electricity; (i.e., do not move or shuffle your feet, do not touch ungrounded objects, etc.). If you come in contact with an ungrounded object, repeat step 2 before touching control or wires. 4. Discharge your body to ground before removing a new control from its container. Follow steps 1 through 3 if installing the control on a furnace.
A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) can Follow the instructions listed below when selecting a furnace location. Refer also to the guidelines provided in Section V, be obtained from any of the following: Combustion and Ventilation Air Requirements. American National Standards Institute 1430 Broadway New York, NY 10018 • Centrally locate the furnace with respect to the proposed or existing air distribution system.
FURNACE SUSPENSION seal should be made between the furnace base and floor by using a silicone rubber caulking compound or cement grout. • Counterflow Installation over a combustible floor. If installation over a combustible floor becomes necessary, use an accessory subbase (see Product Data Book applicable for your model* for details.) A special accessory subbase must be used for upright counterflow unit installations over any combustible material including wood.
If resizing is required on any portion of the venting system, use the appropriate table in Appendix G in the latest edition of the National Fuel Gas Code ANSI Z223.1 and/or CAN/CSA B149 Installation Codes. Most homes will require outside air be supplied to the furnace area by means of ventilation grilles or ducts connecting directly to the outdoors or spaces open to the outdoors such as attics or crawl spaces.
5.3.3 Equipment Located in Confined Spaces: 2. When communicating with the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4,000 BTU per hour of total input rating of all equipment in the enclosure. (a) All Air from Inside the Building: The confined space shall be provided with two permanent openings communicating directly with an additional room(s) of sufficient volume so that the combined volume of all spaces meets the criteria for an unconfined space.
VI. CATEGORY I VENTING (VERTICAL VENTING) NOTE: The single opening must have a free area of not less than one square inch per 3000 BTU of the total input rating of all equipment in the enclosure, but not less than the sum of the areas of all vent connectors in the confined space. Chimney or Gas Vent WARNING TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION, THIS FURNACE MUST BE CATEGORY I VENTED. DO NOT VENT USING CATEGORY III VENTING.
Venting THIS FURNACE IS NOT DESIGN CERTIFIED TO BE HORIZONTALLY VENTED. is the geographic location of the installation. Researchers have discovered that the winter design temperatures have a direct impact on the suitability of this type of venting. In most situations, the existing masonry chimneys will require a properly sized metallic liner.
Proper Chimney Termination? (Check 1) No Line, terminate with listed vent cap (Fix 1) No Change venting arrangements (Fix 2) No Rebuild crown (Fix 3) and/or Reline (Fix 4) No Reline (Fix 4) No Reline (Fix 4) No Reline (Fix 4) Yes Chimney channel free of solid and liquid fuel appliances? (Check 2) Yes Crown in good condition (Check 3) Yes Cleanout free of debris? (Check 4) Termination 10 Feet Or Less From Ridge, Wall or Parapet Yes Liner in good condition? (Check 5) Yes Dilution air avail
CHECK 3 - CHIMNEY CROWN CONDITION. If a metal liner is not present, a clay tile liner must be present, or the chimney must be lined (Fix 4). Damage from condensate usually shows up first in the crown. If any of the following trouble signs are present, the condition of the crown is not satisfactory: a) b) c) d) e) f) Use a flashlight and small mirror at the cleanout or vent connector to inspect the clay tile liner.
In some cases, a shorter extension above the roof may be possible with a liner than would be required with a masonry chimney. Common sources of chlorine and fluorine compounds include indoor swimming pools and chlorine bleaches, paint strippers, adhesives, paints, varnishes, sealers, waxes (which are not yet dried) and solvents used during construction and remodeling. Various commercial and industrial processes may also be sources of chlorine/ fluorine compounds.
1. Remove both doors from the furnace. 2. Remove and save the screws holding the junction box to the left side of the furnace. 3. Models that have the junction box located in the blower compartment will need to rotate the junction box 180 degrees. Models that have the junction box located in the burner compartment will need to move the juction box directly over. 4. Attach the junction box to the right side of the furnace, using the screws removed in step 2. 5. Check the location wiring.
24 VOLT THERMOSTAT WIRING NOTE: Wire routing must not interfere with circulator blower operation, filter removal, or routine maintenance. O O YLO Y B/C R G R W1 W2 DEHUM TWIN ) O YLO Y B/C G R G R W1 W2 DEHUM TWIN • • • • • C HOT Dehumidistat [Optional] Wrap the “R” leg around a clip-on amp meter 10 times. Energize the furnace in the heat mode. Record the reading. Divide this reading by 10. Set the heat anticipator on the thermostat to match this reading.
24 VOLT DEHUMIDISTAT WIRING WARNING The optional usage of a dehumidistat allows the furnace’s circulator blower to operate at a slightly lower speed during a combined thermostat call for cooling and dehumidistat call for dehumidification. This lower blower speed enhances dehumidification of the conditioned air as it passes through the AC coil. For proper function, a dehumidistat applied to this furnace must operate on 24 VAC and utilize a switch which opens on humidity rise.
CAUTION TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING. Inlet gas supply pressures must be maintained within the ranges specified in the following table. The supply pressure must be constant and available with all other household gas fired appliances operating. The minimum gas supply pressure must be maintained to prevent unreliable ignition.
In Canada, the series and rating plate input for the furnace apply to installations up to 2,000 feet (610m) above sea level. Kit HA-02 for natural and LP gases is required to convert furnaces from elevations of 2,000 to 4,500 feet (610m to 1,370m). Canadian certification applies to the installations of up to 4,500 feet above sea level. Installations above 4,500 feet are subject to acceptance by the local authorities having jurisdiction.
– – When the gas piping enters through the right side of the furnace, the installer must supply the following fittings (starting at the gas valve): Rigid metallic pipe and fittings. Semi-rigid metallic tubing and metallic fittings. Aluminum alloy tubing must not be used in exterior locations. – • • • • Use listed gas appliance connectors in accordance with their instructions. Connectors must be fully in the same room as the furnace. – 90 degree elbow. Close nipple. 90 degree elbow.
Maintaining proper gas pressure depends on three main factors: Sizing Between Single or Second Stage Regulator and Appliance* Maximum Propane Capacities Listed are Based on 1/2" W.C. pressure drop at 11" W.C. setting. Capacities in 1,000 BTU/hour. Pipe or Nominal Pipe Size Tubing Tubing Size, O.D.
FILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK XI. SEQUENCE OF OPERATION (INTEGRATED IGNITION CONTROL) Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship with this furnace, but must be provided by the installer. Filters must comply with UL900 or CAN/ULCS111 standards. If the furnace is installed without filters, the warranty will be voided. Refer to Timing Charts for sequencing.
• Circulator blower ramps down to OFF during the 30 seconds following the heat off delay period. • Furnace awaits next call from thermostat. Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved method. Verify that all required kits (propane gas, high altitude, etc.) have been appropriately installed.
Open to Atmosphere Manometer Hose Natural Gas Propane Gas High Fire Regulator Adjust Regulator Vent Outlet Pressure Boss Inlet Gas Supply Pressure Minimum: 5.0" w.c. Maximum:10.0" w.c. Minimum: 11.0" w.c. Maximum:13.0" w.c. If supply pressure differs from table, make the necessary adjustments to pressure regulator, gas piping size, etc., and/or consult with local gas utility. A 5. Turn OFF gas to furnace at the manual shutoff valve and disconnect manometer.
HEAT EXCHANGER RADIATION "LINE OF SIGHT" M a n i fo ld G a s P re ssu re Gas N a t u ra l P ro p a n e R a te Ra nge No m in a l L ow S t a ge 1 .6 t o 2 . 2 " w .c . 1.9" w.c . H ig h S t a g e 3 .2 t o 3 . 8 " w .c . 3.5" w.c . L ow S t a ge 5 .7 t o 6 . 3 " w .c . 6.0" w.c . H ig h S t a g e SUPPLY AIR TSUPPLY 9 .7 t o 1 0 . 3 " w .c . 1 0 . 0 " w . c .
The cooling system manufacturer’s instructions must be checked for required air flow. Any electronic air cleaners or other devices may require specific air flows, consult installation instructions of those devices for requirements. 100% CFM 100% CFM Cooling Demand 1 min 100% CFM OFF 100% CFM OFF 1 min Cooling Demand • Profile D ramps up to 50% of the demand for ½ minute, then ramps to 82% of the full cooling demand airflow and operates there for approximately 7 ½ minutes.
4 3 2 1 150 SECOND DELAY O O N N Cooling Speed Taps Heating Speed Taps (* indicates factory setting) ( * indicates factory setting) 2 180 SECOND DELAY OFF O O N N Heating Speed Tap D OFF Adjust Taps ( * indicates factory setting) 120 SECOND DELAY 1 8 7 O O N F F 8 7 90 SECOND DELAY ON * O O N F F O O N F F 4 3 2 1 Heating Speed Tap C 4 3 2 1 2 - (Minus) Adjust O O F N F 8 7 1 8 7 4 3 2 1 ON Cooling Speed Tap C O O F N F 4 3 2 1 * OFF 8 7 O O F N F 4 3 2 1 Heating Speed T
PRIMARY LIMIT AUXILIARY LIMIT The primary limit control guards against overheating resulting from insufficient conditioned air passing over the heat exchanger. If the primary limit control does not function during this test, the cause must be determined and corrected. Function of this control should be verified by gradually blocking the furnace return air after the furnace has been operating (burners firing) for approximately ten minutes.
RESETTING FROM LOCKOUT FILTER MAINTENANCE Furnace lockout results when a furnace is unable to achieve ignition after three attempts, or when it has lost flame five times during a single call for heat. It is characterized by a non-functioning furnace and a one flash diagnostic LED code from the red LED. If the furnace is in “lockout”, it will (or can be) reset in any of the following ways. Improper filter maintenance is the most common cause of inadequate heating or cooling performance.
FLAME SENSOR (QUALIFIED SERVICER ONLY) XVII. BEFORE LEAVING AN INSTALLATION Under some conditions, the fuel or air supply can create a nearly invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sense signal. If the flame sense signal drops too low the furnace will not sense flame and will lock out. The flame sensor should be carefully cleaned by a qualified servicer using emery cloth or steel wool.
Troubleshooting Chart Symptoms of Abnormal Operation Associated • Furnace fails to operate. NONE Fault Description(s) Possible Causes Corrective Action Cautions and Notes LED Code2 • Integrated control module diagnostic LED provides no signal. • No 115 volt power to furnace, or no 24 volt power to integrated control module. • Blown fuse or circuit breaker.
Troubleshooting Chart Symptoms of Abnormal Operation • Circulator blower runs continuously. No furnace operation. • Integrated control module diagnostic LED is flashing FOUR (4) flashes. Associated LED Code2 4 Fault Description(s) • Primary limit circuit is open. 4 FLASHES Possible Causes Corrective Action • Insufficient conditioned air over the heat exchanger. Blocked filters, restrictive ductwork, improper circulator blower speed, or failed circulator blower.
Wiring Diagram - AMV8 TO 11 5VAC / 1 Ø /60 HZ POW ER SUPP LY WIT H OV ERC URRE NT PRO TECT ION DE VICE WH 1 6 W I RE HA RNE SS TWIN/ DEHUM W2 W1 R G B/C Y YLO O FUSE RD 11 12 7 8 9 4 5 6 1 2 3 N DISCONNECT POWER BEFORE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. 16 P IN PL UG 10 GND L WARNING: 24 V AC. H UM.
Wiring Diagram - ADV8 BK 16 WIRE HARNESS 13 14 15 15 14 13 10 11 12 12 11 10 7 8 9 9 8 7 4 5 6 6 5 4 1 2 3 3 2 1 TO 115VAC/ 1 Ø /60 HZ POWER SUPPLY WITH OVERCURRENT PROTECTION DEVICE L WARNING: BR 24 VAC. HUM. DISCONNECT POWER BEFORE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED.
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE Quality Makes the Difference! All of our systems are designed and manufactured with the same high quality standards regardless of size or efficiency. We have designed these units to significantly reduce the most frequent causes of product failure. They are simple to service and forgiving to operate. We use quality materials and components. Finally, every unit is run tested before it leaves the factory.
