Goodman CVC9/95 Installation Instructions Manual
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Goodman CVC9/95 Installation Instructions Manual

Goodman CVC9/95 Installation Instructions Manual

Cvc9/95 & mvc95 seies two-stage gas furnace
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I
I
NSTALLATION
NSTRUCTIONS FOR
(Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace)
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention to all
safety warnings. Often during installation or repair it is possible to place yourself in a position which is more
Remember, it is your responsibility to install the product safely and to know it well enough to be able to instruct a
Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of specific good
The precautions listed in this Installation Manual are intended as supplemental to existing practices.
there is a direct conflict between existing practices and the content of this manual, the precautions listed here
IO-341F
5/11
*CVC9/95 & *MVC95 - T
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements em-
bodied in the American National Standard / Na-
tional Standard of Canada ANSI Z21.47·CSA-2.3
Gas Fired Central Furnaces.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
safety precautions and related items.
hazardous than when the unit is in operation.
customer in its safe use.
safety practices...follow them.
*NOTE: Please contact your distributor
or our website for the applicable
Specification Sheet referred to in this manual.
5151 San Felipe Suite 500
www.goodmanmfg.com • www.amana-hac.com
© 2009-2011 Goodman Manufacturing Company, L.P.
take precedence.
Houston, TX 77056
-S
G
WO
TAGE
AS
®
C
US
F
URNACE
However, if

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  • Page 1 NSTALLATION NSTRUCTIONS FOR (Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace) These furnaces comply with requirements em- bodied in the American National Standard / Na- tional Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

  • Page 2: Table Of Contents

    ... 6 HIPPING NSPECTION (ESD) P LECTROSTATIC ISCHARGE ... 6 NSTALLER MPORTANT OTE TO THE WNER REGARDING Product Description ... 7 ... 7 EATURES Product Application ... 7 Location Requirements & Considerations ... 8 LEARANCES AND CCESSIBILITY ... 9 URNACE USPENSION ...
  • Page 3 Gas Supply and Piping ... 30 ... 30 LTITUDE ERATE ... 30 ROPANE ONVERSION ... 31 IPING ONNECTIONS ROPANE ANKS AND IPING Circulating Air & Filters ... 34 ... 34 UCT WORK ... 34 HECKING TATIC OTTOM ETURN PENING ILTERS ECTION EFORE ...
  • Page 4 Maintenance ... 50 ... 50 NNUAL NSPECTION ... 50 ILTERS ... 50 URNERS NDUCED RAFT AND IRCULATOR ONDENSATE RAP AND RAIN LAME ENSOR UALIFIED ERVICER ASSAGES UALIFIED ERVICER Before Leaving an Installation ... 51 Repair and Replacement Parts ... 51 Dip Switches ...
  • Page 5 Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. To ensure proper installation and operation, thoroughly read this manual for specifics pertaining to the installation and application of this product. WARNING    ...

  • Page 6: I N Ote P Wner

    Use the following precautions during furnace installation and servicing to protect the integrated control module from damage. By putting the furnace, the control, and the person at the same electrostatic potential, these steps will help avoid exposing the integrated control module to electrostatic discharge. This pro- cedure is applicable to both installed and non-installed (un- grounded) furnaces.

  • Page 7: Product Description

    RODUCT ESCRIPTION EATURES This furnace is a part of the ComfortNet™ family of products. The CTK0*AA ComfortNet thermostat kit allows this furnace to be in- stalled as part of a digitally communicating system. The ComfortNet system provides automatic airflow configuration, enhanced setup features, and enhanced diagnostics.

  • Page 8: Location Requirements & Considerations

    8501 East Pleasant Valley Cleveland, OH 44131 The rated heating capacity of the furnace should be greater than or equal to the total heat loss of the area to be heated. The total heat loss should be calculated by an approved method or in accor- dance with “ASHRAE Guide”...

  • Page 9: Clearances And Accessibility

    U pflow C ou nte rflo w A furnace installed in a confined space (i.e., a closet or utility room) must have two ventilation openings with a total minimum free area of 0.25 square inches per 1,000 BTU/hr of furnace input rating.

  • Page 10: Thermostat Location

    If this furnace is to be installed in the same space with other gas appliances, such as a water heater, ensure there is an adequate supply of combustion and ventilation air for the other appliances.

  • Page 11: Horizontal Applications & Considerations

    In horizontal applications the condensate drain trap is secured to the furnace side panel, suspending it below the furnace. A mini- mum clearance of 4 3/4 inches below the furnace must be pro- vided for the drain trap. Additionally, the appropriate downward piping slope must be maintained from the drain trap to the drain location.

  • Page 12: Alternate Electrical And Gas Line Connections

    If the furnace is installed in a crawl space it must be suspended from the floor joist or supported by a concrete pad. Never install the furnace on the ground or allow it to be exposed to water. Refer to Location Requirements and Considerations - Furnace Suspen- sion for further details.

  • Page 13: Materials And Joining Methods

    The length, diameter, and number of elbows of the vent/flue pipe and combustion air pipe (when applicable) affects the performance of the furnace and must be carefully sized. All piping must be installed in accordance with local codes and these instructions.

  • Page 14: Canadian Venting Requirements

    As shipped, attachment “couplings” for vent/flue and combustion air intake pipe connections are provided on the furnace’s top cover (upflow) or basepan (counterflow). To use the standard connec- tions, field supplied vent/flue pipe and combustion air intake pipe (when applicable) should be secured directly to the furnace at these locations.

  • Page 15: Alternate Furnace Connections

    Counterflow units. Remove and save the four screws securing the vent/flue coupling to the furnace basepan. Also remove the three screws securing the furnace’s internal vent/flue piping to the blower deck. 2. Upflow and Counterflow units.
  • Page 16 2. Remove the combustion air intake pipe from the furnace and cut the pipe at the basepan coupling. Save the basepan coupling and gasket from the blower deck coupling for use in the alternate location.

  • Page 17: Non -Direct Vent (Single Pipe ) Piping

    Although non-direct vent installations do not require a combustion air intake pipe, a minimum of one 90° elbow should be attached to the furnace’s combustion air intake if: an upright installation uses the standard intake location, or a horizontal installation uses the alternate air intake location.

  • Page 18: Vent /Flue Pipe Terminations

    Refer to Vent/Flue and Combustion Air Pipe - Termination Loca- tions or Concentric Vent Termination for specific details on termi- nation construction. For details concerning connection of pipes to the furnace, refer to the Vent/Flue Pipe and Combustion Pipe - Standard Furnace Connections or Alternate Furnace Connections. &C...

  • Page 19: Vent /Flue And Combustion Air Pipe Terminations

    If the combustion air intake pipe is to be installed above a finished ceiling or other area where dripping of condensate will be objec- tionable, insulation of the combustion air pipe may be required. Use 1/2” thick closed cell foam insulation such as Armaflex™ or Insultube™...

  • Page 20: Vent /Intake Terminations For Installation Of Multiple Direct Vent Furnaces

    12” MIN NTAKE IRECT If more than one direct vent furnace is to be installed vertically through a common roof top, maintain the same minimum clear- ances between the exhaust vent and air intake terminations of adjacent units as with the exhaust vent and air intake terminations of a single unit.

  • Page 21: Condensate Drain Lines & Drain Trap

    In upright installations, the furnace’s drain hoses may exit either the right or left side of the furnace. NOTE: If the alternate vent/flue outlet is utilized in an upright installation, the drain trap and drain connections must be located on the same side as the alternate vent/flue outlet.

  • Page 22: Upright Installations -Trap On Right Side

    3. Cut and remove 1/4 inch from the end of the drain port on the rubber elbow. 4. Insert Tube 1 into rubber elbow drain port and secure with silver hose clamp. Angle tube outward toward front of furnace. RED HOSE FRONT...
  • Page 23 LTERNATE RAIN ONNECTIONS Upright installations using the alternate vent/flue outlet will require “right-side only” drain hoses to be connected as follows. Refer to Vent/Flue Pipe and Combustion Air Pipe for details on alternate vent/flue pipe connection. 1. Remove the rubber plug/cap from the right-side drain port on the front cover .

  • Page 24: Upright Installations -Trap On Left Side

    RAP ON NOTE: For left side trap installation, grommets must be moved to the left side of the furnace and the plugs installed on the right side of the furnace. 1. Remove the rubber plug/cap from the left side drain port on the front cover.

  • Page 25: Horizontal Installations

    4. Insert Tube 1 into rubber elbow drain port and secure with a silver hose clamp. Angle tube outward toward front of furnace. 5. Cut 17 3/4 inches from the long end of Hose B and discard. 6. Secure remaining end of Hose B to exposed end of Tube 1 with a green hose clamp.
  • Page 26 1. Position the drain trap against side panel with drain tubes inserted into trap. Note that the trap may be orientated with the outlet facing either the furnace’s top cover or base pan. 2. Secure drain trap to side panel at the dimples or crosshairs located on either side of the grommet drain holes.

  • Page 27: R Emoval

    Before proceeding with electrical connections, ensure that the supply voltage, frequency, and phase correspond to that speci- fied on the unit rating plate. Power supply to the furnace must be NEC Class 1, and must comply with all applicable codes. The...

  • Page 28: Volt Thermostat Wiring

    The application of a single-stage thermostat offers a timed transition from low to high fire. The furnace will run on low stage for a fixed period of time before step- ping up to high stage to satisfy the thermostat’s call for heat. The...

  • Page 29: Line

    DEHUM Unused OSSIL This furnace can be used in conjunction with a heat pump in a fossil fuel application. A fossil fuel application refers to a combined gas furnace and heat pump installation which uses an outdoor temperature sensor to determine the most cost efficient means of heating (heat pump or gas furnace).

  • Page 30: Volt Humidifier

    Accessories Wiring If it is necessary for the installer to supply additional line voltage wiring to the inside of the furnace, the wiring must conform to all local codes, and have a minimum temperature rating of 105°C. All line voltage wire splices must be made inside the furnace junction box.

  • Page 31: Gas Valve

    When sizing a trunk line, be sure to include all appliances which will operate simultaneously when sizing a trunk line. The gas piping supplying the furnace must be properly sized based on the gas flow required, specific gravity of the gas, and length of the run.
  • Page 32 GAS VALVE MANIFOLD BURNERS GAS LINE PLUG IN GAS LINE HOLE PIPE UNION MANUAL SHUT-OFF VALVE (UPSTREAM FROM GROUND JOINT PIPE UNION) GROUND JOINT PIPE UNION DRIP LEG GROMMET IN STANDARD GAS VALVE GAS LINE HOLE BURNERS PLUG IN ALTERNATE MANIFOLD GAS LINE HOLE ALTERNATE GAS...

  • Page 33: Ropane As Anks And Iping

    When gas piping enters directly to the gas valve through the stan- dard inlet hole, the installer must supply straight pipe with a ground joint union to reach the exterior of the furnace. The rigid pipe must be long enough to reach the outside of the cabinet to seal the grommet cabinet penetration.

  • Page 34: Circulating Air & Filters

    To determine total external duct static pressure, proceed as follows; 1. With clean filters in the furnace, use a draft gauge (in- clined manometer) to measure the static pressure of the return duct at the inlet of the furnace. (Negative Pressure) 2.

  • Page 35: Bottom Return Air Opening [Upflow Models ]

    CUT FOUR CORNERS AFTER REMOVING SHEET METAL 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.

  • Page 36: Upright Installations

    Filters must be installed in either the central return register or in the return air duct work. TARTUP Furnace must have a 115 VAC power supply properly connected and grounded. Proper polarity must be maintained for correct operation. In addition to the following start-up and adjustment items, refer to further information in Operational Checks section.

  • Page 37: Heat Anticipator Setting

    RAIN RIMING The drain trap must be primed prior to furnace startup. To prime, fill the drain trap with water. This ensures proper furnace drainage upon startup and prohibits the possibility of flue gases escaping through the drain system.

  • Page 38: Gas Manifold Pressure Measurement And Adjustment

    Outlet Pressure Tap 1/8 NPT Honeywell Model VR9205 Connected to Manometer 1. Turn OFF gas to furnace at the manual gas shutoff valve external to the furnace. 2. Connect a calibrated water manometer (or appropriate gas pressure gauge) at either the gas valve inlet pressure boss or the gas piping drip leg.

  • Page 39: Gas Input Rate Measurement (Natural Gas Only )

    NPUT EASUREMENT ATURAL The gas input rate to the furnace must never be greater than that specified on the unit rating plate. To measure natural gas input using the gas meter, use the following procedure. 1. Turn OFF the gas supply to all other gas-burning appliances except the furnace.

  • Page 40: Circulator Blower Speeds

    12. If the airflow being delivered is 1275, the display indicates 13. 1. Determine the tonnage of the cooling system installed with the furnace. If the cooling capacity is in BTU/hr divide it by 12,000 to convert capacity to TONs. Example: Cooling Capacity of 30,000 BTU/hr.
  • Page 41 100% CFM • Profile B ramps up to full cooling demand airflow by first stepping up to 50% of the full demand for 30 seconds. The motor then ramps to 100% of the required airflow. A one (1) minute OFF delay at 100% of the cooling airflow is provided. 100% CFM 50% CFM 1/2 min...

  • Page 42: Wiring

    VERVIEW The ComfortNet system is a system that includes a ComfortNet compatible furnace and air conditioner or heat pump with a CTK0*AA thermostat. A valid ComfortNet system could also be a compat- ible furnace, CTK0*AA thermostat and non-compatible, single stage air conditioner.

  • Page 43: Fossil Fuel Applications

    Continuous Fan For example, assume the system is an air conditioner matched with a furnace. With a call for low stage cooling, the air conditioner will calculate the system’s low stage cooling air- flow demand. The air conditioner will then send a fan request along with the low stage cooling airflow demand to the fur- nace.

  • Page 44: Comfort Net System Advanced Features

    ONDITIONER Four wires are required between the furnace and thermostat. Two wires are required between the furnace control and single stage air conditioner. For this system configuration, the “Y1” terminal on the integrated furnace control becomes an output rather than an input.

  • Page 45: Furnace Advanced Features Menus

    Submenu Item Mode (MODE) CFM (CFM) CONFIGURATION Indication (for Display Only; not User Modifiable) Displays the number of furnace heating stages Displays the furnace input rate in kBtu/hr Displays the furnace indoor blower motor horsepower DIAGNOSTICS Indication/User Modifiable Options Most recent furnace fault...

  • Page 46: Thermostat Menu

    IAGNOSTICS Accessing the furnace’s diagnostics menu provides ready ac- cess to the last six faults detected by the furnace. Faults are stored most recent to least recent. Any consecutively repeated fault is stored a maximum of three times. Example: A clogged return air filter causes the furnace limit to trip repeatedly.

  • Page 47: System Troubleshooting

    NOTE: Refer to the instructions accompanying the ComfortNet compatible outdoor AC/HP unit for troubleshooting information. Refer to the Troubleshooting Chart in the back of this manual for a listing of possible furnace error codes, possible causes and corrective actions. ORMAL...

  • Page 48: Cooling Mode

    Electronic air cleaner terminal is energized with circulator blower. • Furnace is now operating on the specified stage called for by the two-stage thermostat. • Furnace runs, integrated control module monitors safety circuits continuously.

  • Page 49: Operational Checks

    Use the following precautions during furnace installation and ser- vicing to protect the integrated control module from damage. By putting the furnace, the control, and the person at the same elec- trostatic potential, these steps will help avoid exposing the inte- grated control module to electrostatic discharge.

  • Page 50: Resetting From Lockout

    It is charac- terized by a non-functioning furnace and a E E E E E 0 0 0 0 0 code displayed on the dual 7-segment display. If the furnace is in “lockout”, it will (or can be) reset in any of the following ways.

  • Page 51: Condensate Trap And Drain System (Qualified Servicer Only )

    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.

  • Page 52: Dip Switches

    WITCHES Sw itch Pur pos e Function Bank 90 seconds Heat OFF 120 seconds Delay 150 seconds* 180 seconds 1-Stage T-stat Thermostat 2-Stage T-Stat Setup 5-Min Delay A uto Delay Bus BIA S BIA S TERM Bus Termination Cooling Speed Tap Normal* A djust Taps...

  • Page 53: Troubleshooting Charts

    ROUBLESHOOTING HART...
  • Page 54 ROUBLESHOOTING HART...
  • Page 55 ROUBLESHOOTING HART...
  • Page 56 ROUBLESHOOTING HART...
  • Page 57 ROUBLESHOOTING HART...

  • Page 58: Status Codes

    TATUS ODES INTERNAL CONTROL FAULT/NO POWER NORMAL OPERATION LOCKOUT DUE TO EXCESSIVE RETRIES LOW STAGE PRESSURE SWITCH STUCK CLOSED AT START OF HEATING CYCLE LOW STAGE PRESSURE SWITCH STUCK OPEN OPEN HIGH LIMIT SWITCH FLAME DETECTED WHEN NO FLAME SHOULD BE PRESENT OPEN FUSE LOW FLAME SIGNAL IGNITER FAULT OR IMPROPER GROUNDING...

  • Page 59: Cvc9_Aa, *Mvc95_Aa Wiring Diagram

    2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING. 3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACED, IT MUST BE REPLACED WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT WITH LEAST 105°C. USE COPPER CONDUCTORS.

  • Page 60: Cvc9_Ab, *Mvc95_Ab Wiring Diagram

    2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING. 3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105°C. USE COPPER CONDUCTORS ONLY.

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