Goodman ComfortNet GCVC95 Series Installation Instructions Manual

Goodman ComfortNet GCVC95 Series Installation Instructions Manual

Two-stage gas furnace
Table of Contents

Advertisement

Quick Links

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-430
6/12
*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
Houston, TX 77056
www.goodmanmfg.com • www.amana-hac.com
© 2009 - 2012 Goodman Manufacturing Company, L.P.
take precedence.
-S
G
F
WO
TAGE
AS
URNACE
However, if

Advertisement

Table of Contents
loading

Summary of Contents for Goodman ComfortNet GCVC95 Series

  • Page 1 *NOTE: Please contact your distributor or our website for the applicable Specification Sheet referred to in this manual. 5151 San Felipe Suite 500 Houston, TX 77056 www.goodmanmfg.com • www.amana-hac.com IO-430 © 2009 - 2012 Goodman Manufacturing Company, L.P. 6/12...
  • Page 2: Table Of Contents

    Table of Contents ............................. 5 AFETY RECAUTIONS ............................6 HIPPING NSPECTION (ESD) P ....................6 LECTROSTATIC ISCHARGE RECAUTIONS ............................6 NSTALLER ................6 MPORTANT OTE TO THE WNER REGARDING RODUCT ARRANTY .............................. 7 RODUCT ESCRIPTION ..............................7 EATURES ............................... 7 RODUCT PPLICATION &...
  • Page 3 Table of Contents ............................30 UPPLY AND IPING ..........................31 LTITUDE ERATE .......................... 31 ROPANE ONVERSION ..........................31 IPING ONNECTIONS ........................34 ROPANE ANKS AND IPING & F ............................. 34 IRCULATING ILTERS ..........................34 UCT WORK ..........................35 HECKING TATIC ] ...................
  • Page 4 Table of Contents ................................ 51 AINTENANCE ............................51 NNUAL NSPECTION ..............................51 ILTERS ..............................51 URNERS ...................... 51 NDUCED RAFT AND IRCULATOR LOWERS ) ..............51 ONDENSATE RAP AND RAIN YSTEM UALIFIED ERVICER ) ....................51 LAME ENSOR UALIFIED ERVICER ) ....................
  • Page 5: Safety Precautions

    AFETY RECAUTIONS 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 WARNING  ...
  • Page 6: Shipping Inspection

    California or Quebec. Complete warranty details are portation damage. ® available from your local dealer or, for Goodman brand prod- (ESD) P ® ucts, visit www.goodmanmfg.com and for Amana...
  • Page 7: Product Description

    Dual certification means that the combustion air inlet pipe is op- WARNING tional and the furnace can be vented as a: Non-direct vent (single pipe) central forced air furnace in       ,              PREVENT PROPERTY DAMAGE...
  • Page 8: Location Requirements & C

    A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) • Locate the furnace so condensate flows downwards to can be obtained from any of the following: the drain. Do not locate the furnace or its condensate American National Standards Institute drainage system in any area subject to below freezing 1430 Broadway temperatures without proper freeze protection.
  • Page 9: Clearances Anda

    • If the furnace is used in connection with a cooling coil T O P unit, install the furnace upstream or in parallel with the T O P cooling coil unit. Premature heat exchanger failure will result if the cooling unit is placed ahead of the furnace. S ID E S ID E S ID E...
  • Page 10: Thermostat Location

    2. Inspect the venting system for proper size and horizon- • Concealed hot or cold water pipes, or chimneys. tal pitch, as required by the National Fuel Gas Code, • Unconditioned areas behind the thermostat, such as ANSI Z223.1 or the Natural Gas and Propane Installa- an outside wall.
  • Page 11: Horizontal Applications & C

    & C ORIZONTAL PPLICATIONS ONSIDERATIONS When using the horizontal alternate vent configuration, you must use the RF000142 vent drain kit. See following illustration. Horizontal applications, in particular, may dictate many of the VENT-DRAIN installation’s specifics such as airflow direction, ductwork connec- “FIELD-SUPPLIED DRAIN HOSE”...
  • Page 12: Drain Pan

    Contact the distributor for a tabular listing of appropriate LTERNATE LECTRICAL AND ONNECTIONS manufacturer’s kits for propane gas and/or high altitude installa- This furnace has provisions allowing for electrical and gas line con- tions. The indicated kits must be used to insure safe and proper nections through either side panel.
  • Page 13: Materials And Joiningm

    Piping must be adequately secured and supported to prohibit sag- WARNING ging, joint separation, and/or detachment from the furnace. Hori- zontal runs of vent/flue piping must be supported every three to five       ,      ,     ...
  • Page 14: Canadian Ventingr

    vicing. Combustion Air and Vent piping should be routed in a man- Non-Direct Vent & ner to avoid contact with refrigerant lines, metering devices, con- Direct Vent Vent/Flue Terminations densate drain lines, etc. If necessary, clearances may be in- Non-Direct Vent creased by utilizing two 45 deg.
  • Page 15: Onnections

    COMBUSTION 4. Cut the vent/flue pipe 3.75 inches from the flanged end of VENT/FLUE COMBUSTION AIR PIPE VENT/FLUE PIPE AIR PIPE (DIRECT VENT ONLY) PIPE (DIRECT VENT ONLY) the pipe (see “Vent/Flue Pipe Cuts” figure). The section of pipe attached to the coupling will reach through the side 90 PVC RUBBER 90 PVC...
  • Page 16 8. Upflow and Counterflow units. 3. Remove plastic plug from alternate combustion air intake location. Relocate and install plug in standard air intake For horizontal installations, externally secure the field- location (basepan). Plug the remaining hole in the blower supplied vent/flue pipe directly to the vent/flue coupling using deck with the plastic plug included in the drain kit bag.
  • Page 17 IRECT INGLE IPING UPFLOW Non-Direct Vent (Single Pipe) Non-direct vent installations require only a vent/flue pipe. The vent (1)(2) Maximum Allowable Length of Vent/Flue Pipe (ft) pipe can be run horizontally with an exit through the side of the (3)(5) Unit Pipe Number of Elbows...
  • Page 18 ERMINATIONS The vent/flue pipe may terminate vertically, as through a roof, or horizontally, as through an outside wall. Vertical vent/flue pipe terminations should be as shown in the fol- lowing figure. Refer to Vent/Flue Pipe and Combustion Air Pipe - MIN.
  • Page 19 If the combustion air intake pipe is to be installed above a finished TEE (OPTIONAL) ceiling or other area where dripping of condensate will be objec- VENT/FLUE tionable, insulation of the combustion air pipe may be required. Use 1/2” thick closed cell foam insulation such as Armaflex™ or COMBUSTION AIR INTAKE Insultube™...
  • Page 20: Vent /Intake Terminations

    In a basement installation, the pipes may be run between the joist 90º MEDIUM spaces. If the pipes must go below the joist and then up into the RADIUS ELBOWS last joist space to penetrate the header, two 45° elbows should be used to reach the header rather than two 90°...
  • Page 21: Rain Trap

    & D ONDENSATE RAIN INES RAIN TANDARD IGHT OR RAIN ONNECTIONS All installations positions require the use of the drain trap, hoses, A condensing gas furnace achieves its high level of efficiency by tubes, and clamps. The following quantity of hoses, tubes, and extracting almost all of the heat from the products of combustion hose clamps are provided with the unit.
  • Page 22 5. Cut 17 3/4 inches from the long end of Hose B and discard. PRIGHT NSTALLATIONS RAP ON IGHT Secure the remaining hose to Tube 1 with a green hose In a upright installation drain hoses are connected to drain ports on clamp.
  • Page 23 7. Secure straight end of Hose B to exposed end of Tube 1 LTERNATE RAIN ONNECTIONS with a green hose clamp. Route hose toward right side Upright installations using the alternate vent/flue outlet will require panel grommet holes. “right-side only” drain hoses to be connected as follows. Refer to 8.
  • Page 24 5. Cut “X” inches from the long end of Hose B and discard. PRIGHT NSTALLATIONS RAP ON Refer to table for appropriate length to cut. Secure NOTE: For left side trap installation, grommets must be moved remaining hose to Tube 1 with a green hose clamp. Route to the left side of the furnace and the plugs installed on the right other end of Hose B to front left side panel grommet hole.
  • Page 25: Horizontal Installations

    side to guard against blocked drain conditions. Cut hose PRIGHT RAIN OUNTING EFT OR IGHT ANEL to appropriate length to minimize sagging. Plug left 1. Insert drain tubes into drain trap and position the drain (unused) pressure tap with plug removed from right side. trap against the side panel.
  • Page 26 6. Cut 5 1/2 inches straight length from the long end of each Tube 2 and discard radius ends. Horizontal installations with the left side panel down will require 7. Insert approximately one inch of each Tube 2 through left drain hoses to be connected to the left side front cover drain port side panel grommet hole.
  • Page 27: Electrical Connections

    Line polarity must be observed when making field connections. LECTRICAL ONNECTIONS Line voltage connections can be made through either the right or left side panel. The furnace is shipped configured for a right side WARNING (left side for counterflows) electrical connection with the junction HIGH VOLTAGE ! box located inside the burner compartment.
  • Page 28: Volt Thermostatw

    1. Measure resistance between the neutral (white) connection and one of the burners. 2. Resistance should measure 10 ohms or less. Furnace Integrated Control Module This furnace is equipped with a blower door interlock switch which interrupts unit voltage when the blower door is opened for servicing. Do not defeat this switch.
  • Page 29: Volt Dehumidistatw

    To use a single-stage thermostat, turn off power to the fur- OSSIL PPLICATIONS nace, move the thermostat selection DIP switch to the OFF This furnace can be used in conjunction with a heat pump in a position. Set the desired transition time by setting the transi- fossil fuel application.
  • Page 30: Volt Humidifier

    NEUTRAL 24 V UMIDIFIER A 5" long brown wire in the wire harness at the low fire pressure switch provides 24 VAC humidifier control. This wire is powered any time the pressure switch is closed. To connect 24 VAC HUM, connect the 24 VAC line of the humidifier to the 5”...
  • Page 31: High Altitude Derate

    Inlet gas supply pressures must be maintained within the ranges ALVE specified in the following table. The supply pressure must be constant and available with all other household gas fired appli- This unit is equipped with a 24 volt gas valve controlled during ances operating.
  • Page 32 The following stipulations apply when connecting gas piping. Re- • Protect connectors and semirigid tubing against physical fer to Gas Piping Connections figure for typical gas line connec- and thermal damage when installed. Ensure aluminum- tions to the furnace. alloy tubing and connectors are coated to protect against external corrosion when in contact with masonry, plaster, •...
  • Page 33: Gas Piping Connections

    MANUAL SHUT-OFF VALVE IRECT TANDARD NLET IPING (UPSTREAM FROM GROUND JOINT PIPE UNION) GROUND JOINT PIPE UNION WARNING DRIP LEG               . U         DGES SHEET METAL HOLES SHARP GLOVES GROMMET IN STANDARD GAS VALVE GAS LINE HOLE  ...
  • Page 34: Propane Gas Tanks And Circulating Air & Filters

    ROPANE ANKS AND IPING Sizing Between First and Second Stage Regulator* Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting. Capacities in 1,000 BTU/hour. WARNING Pipe or Nominal Pipe Size Tubing Tubing Size, O.D. Type L  ...
  • Page 35: Checking Duct Static

    A closed return duct system must be used, with the return duct connected to the furnace. NOTE: Ductwork must never be at- tached to the back of the furnace. For upflow installations requir- ing 1800 CFM or more, use either two side returns or bottom return or a combination of side /bottom.
  • Page 36: Filters - Read This Section

    With a parallel flow arrangement, the dampers or other means UPFLOW COOLING AIRFLOW REQUIREMENT (CFM) used to control the flow of air must be adequate to prevent chilled air from entering the furnace and, if manually operated, must be 1000 1200 1400 1600...
  • Page 37: Horizontal Installations

    4. Remove the burner compartment door. FILTER ACCESS NOTE: This furnace is equipped with an ignition device which DOOR automatically lights the burner. Do not try to light the burner by hand. 5. Move the furnace gas valve manual control to the OFF RETURN position.
  • Page 38 If using the inlet pressure boss on the White-Rodgers 36G54 gas valve, then use the 36G Valve Pressure Check Kit, Goodman Part No. 0151K00000S. 3. Turn ON the gas supply and operate the furnace and all...
  • Page 39: As Anifold Ressure

    If supply pressure differs from table, make the necessary adjust- 5. Turn ON the gas supply. ments to pressure regulator, gas piping size, etc., and/or consult 6. Turn on power and close thermostat “R” and “W1” contacts with local gas utility. to provide a call for low stage heat.
  • Page 40: Temperature Rise

    3. Calculate the number of seconds per cubic foot (sec/ft ) of HEAT EXCHANGER RADIATION "LINE OF SIGHT" gas being delivered to the furnace. If the dial is a one cubic foot dial, divide the number of seconds recorded in step 2 SUPPLY by one.
  • Page 41 2. Determine the proper air flow for the cooling system. Most • Profile A provides only an OFF delay of one (1) minute at cooling systems are designed to work with air flows between 100% of the cooling demand airflow. 350 and 450 CFM per ton.
  • Page 42 Example: If the *MVC950704CX is set for 1210 CFM on cooling, the “ADJUST” is set to “+” (plus). The four heating speeds available are “A Plus”, “B Plus”, “C Plus”, and “D Plus”. “A Plus” has a rise of 46°F for both stages which is within the 30-60°F rise range for the *MVC950704CX.
  • Page 43: Comfort Net ™ System

    ™ S OMFORT YSTEM System Operating System Airflow Demand Source Mode VERVIEW Cooling Air Conditioner The ComfortNet system is a system that includes a ComfortNet Air Conditioner + compatible furnace and air conditioner or heat pump with a CTK0* Heating Furnace Furnace thermostat.
  • Page 44: Ctk0* Wiring

    CTK0* W ™ C IRING OMFORT OMPATIBLE URNACE WITH OMFORT COMPATIBLE INGLE TAGE ONDITIONER NOTE: A removable plug connector is provided with the control to make thermostat wire connections. This plug may be removed, Four wires are required between the furnace and thermostat. Two wire connections made to the plug, and replaced.
  • Page 45 URNACE DVANCED EATURES ENUS (accessed through the communicating thermostat) CONFIGURATION Submenu Item Indication (for Display Only; not User Modifiable) Number of Heat Stages (HT STG) Displays the number of furnace heating stages Input Rate (BTU/HR) Displays the furnace input rate in kBtu/hr Motor HP (1/2, ¾, or 1 MTR HP) Displays the furnace indoor blower motor horsepower DIAGNOSTICS...
  • Page 46 SET-UP Submenu Item User Modifiable Options Comments -10% to +10% in 2% increments, Trims the heating airflow by the selected Heat Airflow Trim (HT TRM) default is 0% amount. 5, 10, 15, 20, 25, or 30 seconds, Heat ON Delay (HT ON Selects the indoor blower heat ON delay default is 30 seconds 30, 60, 90, 120, 150, or 180 seconds,...
  • Page 47: Thermostate

    The ComfortNet™ system is a fully communicating system, and HERMOSTAT thus, constitutes a network. Occasionally the need to trouble- If this furnace is installed with a communicating compatible heat shoot the network may arise. The integrated furnace control has pump, the system is recognized as a dual fuel system. The some on-board tools that may be used to troubleshoot the net- balance point temperature should be set via the thermostat ad- work.
  • Page 48: System Troubleshooting

    Description Possible Cause Corrective Action Comments Normal condition None None None 1 Flash Communications Communications •Depress Learn Button •Depress once quickly for Failure Failure a power-up reset •Verify that bus BIAS and TERM dipswitches are in •Depress and hold for 2 the ON position.
  • Page 49: Cooling Mode

    • Igniter warm up begins upon step to low speed and OOLING presence of closed low stage pressure switch contacts. The normal operational sequence in cooling mode is as follows: • Gas valve opens at end of igniter warm up period, delivering •...
  • Page 50: Safety Circuit Description

    ROUBLESHOOTING (ESD) P LECTROSTATIC ISCHARGE RECAUTIONS NOTE: Discharge body’s static electricity before touching unit. An electrostatic discharge can adversely affect electrical components. 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- Burner Flame trostatic potential, these steps will help avoid exposing the inte-...
  • Page 51: Maintenance

    3. Manual thermostat cycle. Lower the thermostat so that ILTER EMOVAL there is no longer a call for heat for 1 -20 seconds then reset to previous setting. Depending on the installation, differing filter arrangements can be applied. Filters can be installed in either the central return register NOTE: If the condition which originally caused the lockout still or a side panel external filter rack (upflow only).
  • Page 52: Flame Sensor

    ASSAGES UALIFIED ERVICER EFORE EAVING AN NSTALLATION The heat exchanger flue passageways should be inspected at the • Cycle the furnace with the thermostat at least three times. beginning of each heating season. If necessary, clean the pas- Verify cooling and fan only operation. sageways as outlined below.
  • Page 53 WITCHES Dip Switch Switch Bank Purpose Function Heating Off Delay 2 Stage Stat 2 Stage Stat Thermostat Setup 1 Stg Stat 5 min delay 1 Stg Stat auto delay Cooling Airflow Add 5% Minus 5% Trim Add 10% Minus 10% Ramping Profile Heating Airflow Disabled...
  • Page 54: Troubleshooting Chart

    ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy & Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions ComfortNet™ Thermostat) Codes Message Code • Furnace fails to operate None • No 115 power to INTERNAL •...
  • Page 55 ROUBLESHOOTING HART Symptoms of Abnormal ComfortNet™ Diagnostic/ Operation (Legacy Thermostat Only Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Induced draft blower • Low stage PS1 OPEN • Pressure switch hose •...
  • Page 56 ROUBLESHOOTING HART Symptoms of Abnormal ComfortNet™ Diagnostic/ Operation (Legacy Thermostat Only Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Furnace fails to operate. • Problem with IGNITER • Improperly connected •...
  • Page 57 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Operation different than • Invalid memory INVALID MC • Shared data set on •...
  • Page 58 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Circulator blower MOTOR • Turn power OFF prior • Furnace fails to operate. motor senses TRIPS to repair...
  • Page 59 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 60: Iring Iagram

    IRING IAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

Table of Contents