Williams CARMEL AC2030TNA Owner's Manual
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Williams CARMEL AC2030TNA Owner's Manual

Top vent gas wall heater
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OWNER'S MANUAL
INSTALLATION INSTRUCTIONS
CARMEL
TOP VENT GAS WALL HEATER
SINGLE SIDED MODEL NUMBER:
AC2030TNA (natural gas)
SAVE THIS MANUAL FOR FUTURE REFERENCE.
READ THIS OWNER'S MANUAL CAREFULLY BEFORE YOU
INSTALL YOUR NEW WILLIAMS WALL FURNACE.
WARNING: INSTALLATION IN MANUFACTURED
HOMES Williams Top-Vent Furnaces are allowed in
manufactured homes when the following conditions are met:
- The manufactured home is permanently sited per local codes.
- The manufactured home is manufactured after
6/15/1976 and is HUD approved with a red certification
label (US only). These models are allowed only in
the USA. This applies to aftermarket manufactured
home installations where the home is sold, installed
and permanently sited. Not for manufactured home
manufacturer (factory) installation. These units may not be
installed in trailers or recreational vehicles.
WARNING: This product can expose you to
chemicals including epichlorohydrin which is known to
the State of California to cause cancer and birth defects
and/or other reproductive harm. For information go to
www.p65warnings.ca.gov
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause injury or
property damage. Refer to this manual. For assistance or
for additional information consult a qualified installer,
service agency or the gas supplier.
250 West Laurel Street, Colton CA 92324 • WWW.WFC-FC.COM • 1-888-444-1212
AC2030TNA
TM
VISITEZ NOTRE SITE WEB POUR LA VERSION FRANÇAISE DE CE MANUEL
VISITE NUESTRA PÁGINA WEB PARA LA VERSIÓN EN ESPAÑOL DE ESTE MANUAL
https://www.williamscomfortprod.com/products/furnaces/
20,000 - 30,000
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
- Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
• Open all windows.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone or cell phone in your building.
• Extinguish any open flame.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach the gas supplier, call the fire
department.
– Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
BTU/hr.

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Summary of Contents for Williams CARMEL AC2030TNA

  • Page 1 20,000 - 30,000 WARNING: INSTALLATION IN MANUFACTURED BTU/hr. HOMES Williams Top-Vent Furnaces are allowed in manufactured homes when the following conditions are met: - The manufactured home is permanently sited per local codes. WARNING: If the information in these instructions...

  • Page 2: Your Williams Warranty

    WARRANTY WARRANTY The manufacturer, Williams, warrants this wall furnace or heater to Some states do not allow limitation on how long an implied the original purchaser under the following conditions: warranty lasts, and some states do not allow the exclusion or...

  • Page 3: Table Of Contents

    CONTENTS Quick Reference YOUR WILLIAMS WARRANTY Here’s how to: INSTALLATION RECORD INSTALLING YOUR FURNACE TABLE OF CONTENTS Recessed Mount, Surface Mount, and Vent Installation are SAFETY RULES explained starting on page 8. INTRODUCTION OPERATING YOUR FURNACE BASIC MATERIALS NEEDED Igniting your furnace for the first time.

  • Page 4: Safety Rules

    SAFETY RULES WARNING: Read these rules and the instructions Provide for adequate combustion and ventilation air. See carefully. Failure to follow these rules and instructions page 8-9. The flow of this air to the furnace must not be blocked. could cause a malfunction of the furnace. This could result in death, serious bodily injury and/or property 10.

  • Page 5: Introduction

    INTRODUCTION The following steps are all needed for proper installation Combustion air is drawn in from the room where the and safe operation of your furnace. If you have any doubts furnace is located and is vented out of the top of the furnace as to any requirements, check with local authorities.

  • Page 6: Basic Materials Needed

    INTRODUCTION Helpful Installation Information Basic Materials Needed The following booklets will help you in making the installation: Pipe and fittings to make gas connections to the furnace.  ANSI/NFPA 70, or current edition “National Electrical Code”. Vertical venting materials. See page 15, Figure 8. ...

  • Page 7: Installing Your Wall Furnace

    INSTALLING YOUR FURNACE Locate the furnace near the center of the space to be The following steps are needed for proper installation and heated for good air circulation. Do not put it behind a safe operation of your furnace. If you have any doubts as to door or draperies.

  • Page 8: Combustion & Ventilation Air

    INSTALLING YOUR FURNACE After picking a location that meets the requirements, check After it has been determined that each appliance the walls, attic and roof to make sure there are no obstructions connected to the venting system properly vents when such as pipes, electrical wiring, etc., which could interfere with tested as outlined above, return doors, windows, exhaust the installation of the furnace or vent pipe.
  • Page 9 If the furnace is installed in an area with another gas B. Draft Hood Spills If there is spillage at a draft hood appliance(s), the total input rating of all appliances must be (match goes out or flame wavers away from draft hood), considered when determining the free area requirements check for plugged flue connectors and chimneys.
  • Page 10 INSTALLING YOUR FURNACE HOLE PLACEMENT - EXAMPLE EXAMPLES OF GRILL PLACEMENT HOLES FROM VENTILATED VENTILATION GRILLES CONNECTING TWO ATTIC INTO STUD SPACE ROOMS TO MEET UNCONFINED SPACE 100 SQ IN VENTILATION 200 SQ IN MINIMUM GRILLES BETWEEN INTO CLOSET LARGE FOR HOT ROOMS WATER...

  • Page 11: Recessed Mount Installation

    before you install the furnace. See instructions packed WARNING: Danger of illness, bodily injury or death. with accessory and Figure 5. Draft hood spillage, with unobstructed vents, indicates Do not allow wall finish material to project into the that additional air must be brought into the structure furnace recess.
  • Page 12 INSTALLING YOUR FURNACE CLOSE OFF STUD SPACE (IF REQUIRED) INSTALL CEILING PLATE SPACER Nail the ceiling plate spacers either across or in between If studs are not on 16-inch centers, cut the hole for the the cut out section of ceiling plate. If nailed between, ends furnace next to an existing stud and frame in the other must be bent at 90 degrees.

  • Page 13: Surface Mount Installation

    Surface Mount Installation Installation, page 14-15. The use of the optional Free Standing Accessory No. Set the furnace body into position. Figure 10, page 16. 4901 allows single-sided furnaces to be surface mounted The furnace legs will rest on the bottom of the base instead of recessed into a wall.
  • Page 14 INSTALLING YOUR FURNACE FIGURE B FIGURE C STUD WALL STUD WALL 3 - 1/2ʺ 4 - 7/16ʺ CENTERED 14ʺ 16ʺ FIGURE D CEILING PLATE SPACER STUD WALL STUD WALL GAS STUB LOCATIONS PLUMBERS TAPE VENT INSTALLED B-W VENT PIPING FRONT PANEL INSTALLED VENT HOLD DOWN PLATE...

  • Page 15: Vent Installation

    FIGURE 8 – TYPICAL VENT INSTALLATION FIGURE 8 – ALTERNATIVE VENTING VENT CAP MUST BE MINIMUM 2 FEET IF VENT EXTENDS OVER 5 FEET HIGHER THAN ANY POINT WITHIN ABOVE ROOF, GUY OR BRACE. 10 FEET OF THE VENT CAP LISTED SEAL AROUND COLLAR VENT CAP...

  • Page 16: Attaching Your Furnace

    INSTALLING YOUR FURNACE Attaching Your Furnace Consequently, this could cause the vent safety control system to shut down the furnace. Clear the wall recess of all debris, remove any wood or plaster. The area above header within the stud space MUST be kept Stand the furnace in front of recess, holding the furnace body clear of any attic insulation to allow the free circulation of at an angle.

  • Page 17: Gas Supply And Piping

    REAR OUTLET KIT INSTALLATION (OPTIONAL) FIGURE 13 – MOUNTING REAR OUTLET REGISTER If the Rear Outlet Register Accessory kit 6920 is used, the following procedure must be completed before placing furnace body into wall recess, Figure 12. Attach speed nuts to outer shield and remove knockout plates from both the REGISTER outer and inner shields as follows:...
  • Page 18 INSTALLING YOUR FURNACE ORIFICE SIZES GAS CONNECTION The efficiency rating of this appliance is a product Annual Use two pipe wrenches when making the connection to Fuel Utilization Efficiency rating determined under the valve to prevent turning and/or damage to the valve continuous operating conditions and was determined or orifice.

  • Page 19: Front Panel Installation

    Front Panel Installation FIGURE 15 – GAS PIPING Place the front panel top over the channel on the header MANUAL SHUT-OFF VALVE plate, as shown in Figure 18. Press the panel tight against DROP wall, and secure it to the header channel with the screw provided in final assembly package.

  • Page 20: Thermostat Installation

    INSTALLING YOUR FURNACE Thermostat Installation Snag the thermostat cable through the hole and pull Use the thermostat supplied with the unit. the cable through the hole in the wall so that 6-inches Use cable supplied with the unit. of the cable protrude. If a new location is chosen or if this is a new installation, Route cable to the furnace.

  • Page 21: Start Up Procedure

    START-UP PROCEDURE Check the furnace operation as outlined in the following combustion chamber. Before starting natural gas input instructions. If any sparking, odors or unusual noises check, obtain the heating value of gas (BTU per cubic foot) are encountered, shut off electric power immediately. at standard conditions from your local gas supplier.

  • Page 22: Operating Your Furnace

    NORMAL APPEARANCE FOR YOUR SAFETY READ BEFORE LIGHTING NATURAL GAS: WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS Blue Colored Flame with scattered yellow dots EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING Flame would rise approximately 1/2 inch - 3/4 inch above PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.

  • Page 23: How To Care For Your Furnace

    CARING FOR YOUR FURNACE How To Care For Your Furnace DANGER: The build-up of any dust, lint or foreign WARNING: Danger of bodily injury or death. Turn material in the combustion fan filter can interfere with off electric power supply at disconnect switch, fuse box the proper air gas mixture and can result in a yellow or service panel before removing any doors or access flame which can produce carbon monoxide and soot.

  • Page 24: Installing Your Motorized Rear Outlet Accessory

    INSTALLING YOUR MOTORIZED REAR OUTLET ACCESSORY Motorized Rear Outlet Register 6920 LOCATION WARNING This register must be centered between studs and aligned with the furnace for proper engagement. Make sure the furnace is centered between the same studs before you cut any wall openings for the register.
  • Page 25 INSTALLING YOUR MOTORIZED REAR OUTLET ACCESSORY FIGURE A – RECESSED & SURFACE INSTALLATION FIGURE C – SURFACED MOUNTED INSTALLATION ACCESSORY SIDE REGISTER OPENING SIZE ASSEMBLY FURNACE 8 1/4ʺ X 13 3/8ʺ SHEILDS HEAT SENSOR SWITCH BLOWER AND 45ʺ MOTOR FLOOR PLATE FIGURE B –...
  • Page 26 FIGURE D – SURFACED MOUNTED INSTALLATION FIGURE E – WIRING SURFACE MOUNTED FURNACE SWITCH LEGEND 1 - ON 2 - OFF 3 - AUTO SPEED NUT (4) SUPPORT SWITCH BRACKET BLOWER 2 X 4 MOTOR STUD HEAT SENSOR SWITCH DRY WALL SCREW #10 -24 X 4.50 PHIL HD 115V 60Hz REGISTER...

  • Page 27: Motorized Rear Outlet Replacement Parts

    MOTORIZED REAR OUTLET REPLACEMENT PARTS Motorized Rear Outlet – Model 6920 10 10 11 11 Motorized Rear Outlet Replacement Parts List – Model 6920 Part Number Reference Number Description 6920 Register Assembly 9B285 Strain Relief Bushing P500185 J-Box Cover 9A427 Strain Relief Brushing P603108 Heat Sensor Switch...

  • Page 28: Furnace Exploded View

    FURNACE EXPLODED VIEW Monday, 20 Jan 4h Hold 08:32 AM NOT HEATING CARMEL AC2030TNA TOP VENT GAS WALL HEATER...

  • Page 29: Furnace Replacement Parts

    FURNACE REPLACEMENT PARTS PART NUMBER DRAWING DESCRIPTION REF NO. AC2030TNA P323834 VENT LIMIT SWITCH M116840 CIRCULATION FAN ASSEMBLY P323828 HIGH LIMIT SWITCH M117837 FLAME SENSOR M117836 THERMOCOUPLE PROBE M117838 HOT SURFACE IGNITER M117255 SIGHT WINDOW M119198 CONTROL MODULE ASSEMBLY 4915 FRONT PANEL M117435 VENT PRESENCE SWITCH...

  • Page 30: Installing Your Power Supply Kit

    INSTALLING POWER SUPPLY KIT M119046 INSTALLATION INSTRUCTIONS FOR MODELS: AC2030TNA / TG2030TN REPLACEMENT PARTS TABLE NOTE: Be sure to follow national electrical code, ANSI/ NFPA 70, or Canadian Electrical Code, Part I, CSA C221 REFERENCE # ITEM NUMBER DESCRIPTION QUANTITY and all local codes for electrical wiring when following these instructions.

  • Page 31: Installing Your External Power Supply Kit

    INSTALLING EXTERNAL POWER SUPPLY KIT M119015 INSTALLATION INSTRUCTIONS FOR MODELS: screw taps are permissible only on the 6 1/2” overhang AC2030TN / AC2030TNA / TG2030TN portion of the leg as shown. Do not drill in the grayed out area. If the standard power adapter is not long enough to reach an outlet, this kit can be used to wire the unit through the wall, to the power 6.
  • Page 32 INSTALLING EXTERNAL POWER SUPPLY KIT M119015 FIGURE 1B FIGURE 1D Adapter in attic, 12 VDC wire fed through inside of stud & Adapter outside unit on floor, inside the wall 12VDC power fed down next to unit, through leg. through hole in stud. 120 VAC 12 VDC CEILING PLATE...

  • Page 33: Wiring Diagram

    DRILL IN THIS AREA 6 1/2“ CASING LEG FIGURE 4 Wiring diagram. Manufactured by Williams Furnace Co. External power supply Installation Kit No. M119015 WARNING: Disconnect the electric power before servicing Avertissement: Deconnecter DU circuit D’alimentation electrique avant l’entretien JUNCTION BOX*...
  • Page 34 WIRING DIAGRAM FAN 1 01 - GND GY 02 - 12 VDC ORN OUTLET 04 - PWM WHT MOTOR FAN 1 01 - GND BK 02 - 12 VDC RED INLET 03 - TACH YEL MOTOR 04 - PWM BR 01 - GND BK FAN 1 02 - 12 VDC RED...

  • Page 35: Troubleshooting

    TROUBLESHOOTING YOUR FURNACE For qualified service technicians. CORRECTIVE ACTION ISSUE POSSIBLE CAUSE(S) Check power cord connection Furnace won’t turn on AC power is not connected Control module power ON Control module power button is set to OFF Thermostat is set to OFF Turn thermostat to ON D.

  • Page 36: Service Hints

    TROUBLESHOOTING YOUR FURNACE ISSUE POSSIBLE CAUSE(S) CORRECTIVE ACTION Furnace not producing Furnace may be too small Check heat sizing calculations. sufficient heating. for space being heated Thermostat lead wires may be shorted Furnace operates but will Thermostat wiring defective. together, caused by a nail or staple. Check not shut off when room by removing thermostat leads from temperature is attained.
  • Page 37 TROUBLESHOOTING ERROR CODES ERROR CODE ROOT CAUSE SOLUTION Check if the TEG temperature sensor is installed 33 : TEG temperature sensor read error correctly. If so, replace the temperature sensor. Check if the Combustion temperature sensor 34 : Combustion temperature sensor read error is installed correctly.
  • Page 38 MFG. DATE CODE PART NUMBER PART DESCRIPTION All parts listed herein may be ordered from your equipment supplier. The Model Number of your Williams wall furnace will be found on the nameplate near gas valve, inside control compartment. CARMEL AC2030TNA TOP VENT GAS WALL HEATER...
  • Page 39 SERVICE RECORD DATE MAINTENANCE PERFORMED COMPONENTS REQUIRED CARMEL AC2030TNA TOP VENT GAS WALL HEATER...
  • Page 40 www.williamscomfortprod.com | 888-444-1212 | 250 West Laurel Street, Colton CA 92324 USA Subject to change without notice | © 2023 P324015_A 8/23...

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