1. Manuals
  2. Brands
  3. Marvair Manuals
  4. Air Conditioner
  5. AVG24
  6. Installation instructions manual

Marvair AVG24 Installation Instructions Manual

Gpac wall mount air conditioner with gas heat models avg category i furnace
Hide thumbs Also See for AVG24:
Table of Contents

Advertisement

Quick Links

See also: User Information
• If the information in these instructions are not followed exactly, a fire, carbon monoxide
poisoning or explosion may result causing property damage, personal injury or loss of
life.
• Read all instructions carefully prior to beginning the installation. Do not begin installation
if you do not understand any of the instructions.
• Improper installation, adjustment, alteration, service or maintenance can cause property
damage, personal injury or loss of life.
• Installation and service must be performed by a qualified installer, service agency or the
gas supplier in accordance with these instructions and in compliance with all codes and
requirements of authorities having jurisdiction.
• Follow all safety codes.
• Si les informations contenues dans ces instructions ne sont pas suivies exactement, il
peut en résulter un empoisonnement au monoxyde de carbone ou une explosion, causant
dommages, blessure ou mort.
• Lisez soigneusement toutes les instructions avant de commencer l'installation. Ne la
commencez pas si vous n'avez pas assimilé toutes ces instructions.
• Une mauvaise exécution d'installation, réglage, altération, intervention ou entretien peut
causer dégâts matériels et dommages corporels ou même mort.
• Installation et interventions doivent être effectuées par un installateur ou une agence de
dépannage qualifiés, ou par le fournisseur de gaz en conformité avec toutes les normes
et exigences des autorités ayant juridiction en la matière.
• Respectez toutes les normes de sécurité.
E-mail: marvairtech@airxcel.com • Internet: www.marvair.com
WARNING
SAFETY REQUIREMENTS
AVERTISSEMENT
EXIGENCES POUR LA SÉCURITÉ
Manufactured By:
Marvair
Division of AIRXCEL
®
P.O. Box 400 • Cordele, Georgia 31010
156 Seedling Drive • Cordele, Georgia 31015
(229) 273-3636 • Fax (229) 273-5154

Installation Instructions

GPac Wall Mount
Air Conditioner with Gas Heat
Models AVG Category I Furnace
, Inc.
®
Part # 01518 GPac Installation Instructions 11/07-2

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AVG24 and is the answer not in the manual?

Questions and answers

Related Manuals for Marvair AVG24

Summary of Contents for Marvair AVG24

  • Page 1: Chapter 1 Safety Requirements

    Marvair Division of AIRXCEL , Inc. ® ® P.O. Box 400 • Cordele, Georgia 31010 156 Seedling Drive • Cordele, Georgia 31015 (229) 273-3636 • Fax (229) 273-5154 E-mail: marvairtech@airxcel.com • Internet: www.marvair.com Part # 01518 GPac Installation Instructions 11/07-2...

  • Page 2: Gpac Installation Instructions 11/07

    This is the safety alert symbol . When you see this symbol on the GPac unit and in the instruction manuals be alert to the potential for personal injury. Understand the signal word DANGER, WARNING and CAUTION. These words are used to identify levels of the seriousness of the hazard. Failure to comply will result in death or severe personal injury and/or property DANGER damage.

  • Page 3: Table Of Contents

    Table of Contents Chapter 1 Safety Requirements ................1 Chapter 2 Start-Up Check List ................4 Chapter 3 Model ID & Serial Number Explanation ..........5 Chapter 4 Safe Installation Requirements .............. 5 Safety Rules .................. 6 Chapter 5 Installation ....................8 Location &...

  • Page 4: Chapter 2 Start-Up Check List

    Chapter 2 Start-Up Check List START-UP CHECK SHEET (Keep this page for future reference) Dealer Name: Address: Business Card Here City/State/Zip: Phone: Owners Name: Manual Gas Shut-Off Upstream of Furnace/Drip-Leg? Address: City/State/Zip: Drip-Leg Upstream of Gas Valve? YES Model Number: Blower Speed Check? YES Serial Number: All Electrical Connections Tight? YES...

  • Page 5: Chapter 3 Model Id & Serial Number Explanation

    Chapter 3 Model ID & Serial Number Explanation Model Identification • • •• • Ventilation Configuration Nominal Cooling Power Supply 24 = 24,000 BTUH A = 208/230V, 1ø, 60Hz N = 0-15% fresh air with manual damper, no pressure relief. 30 = 30,000 BTUH C = 208/230V, 3ø, 60Hz Y = 0 to 450 cfm of outside air, field adjustable, manual damper, no...

  • Page 6: Safety Rules

    Underwriters Laboratories installed and maintained in the building or dwelling (see note below). NOTE: Marvair does not test any alarms and makes no representations regarding any brand or type of alarms.
  • Page 7 operates and the hazards involved with gas and electricity. 2. Do not use this unit if any part has been under water. Immediately call a quality service agency to inspect the unit and to replace any part of the control system and any gas control which has been under water.

  • Page 8: Chapter 5 Installation

    Min. Clearance Min. Clearance Around Both Min. Clearance Min. Clearance Around the Flue MODEL From the Front Sides Above the Unit Below the Unit) Vent or Pipe AVG24/30/36 36" 19" 2" 0" 18" AVG42/48/60 36" 19" 2" 0" 18" Table 1. Minimum Clearances from Unprotected Combustible Material and For Service...

  • Page 9: Installation Requirements

    7. The AVG unit is not certified or suitable for use in drying or process applications. Use in such applications voids any warranty and Marvair disclaims any responsibility for the duct furnace and/or application. 8. The AVG unit is not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons, or in applications with airborne substances containing silicone.
  • Page 10 10. The use and storage of gasoline or other flammable vapors and liquids in the vicinity of the AVG unit is hazardous. 11. Install the unit so that the least amount of noise will be transmitted to the living spaces. 12.

  • Page 11: Dimensional Data

    5.3 Dimensional Data AVG 24/30/36 9.8125 .6250 9.8125 9.8125 9.8125 4.5625 1.0625 9.8125 9.8125 9.8125 5.5313 40.5 Figure 1a. AVG Models 24/30/36 Dimensional Data GPac Installation Instructions 11/07-2...
  • Page 12 Figure 1b. AVG Models 42/48/60 Dimensional Data GPac Installation Instructions 11/07-2...

  • Page 13: Equipment Inspection

    Min. Clearance Min. Clearance Around Both Min. Clearance Min. Clearance Around the Flue MODEL From the Front Sides Above the Unit Below the Unit) Vent or Pipe AVG24/30/36 36" 19" 2" 0" 18" AVG42/48/60 36" 19" 2" 0" 18" Table 3. Minimum Clearances from Unprotected Combustible Material and For Service After the unit has been installed, make sure that the unit is level.
  • Page 14 80679 30 x 16" Aluminum Return Grille for AVG 42-48-60 Additional Items Needed: Additional hardware and miscellaneous supplies (not furnished by Marvair ) are needed for installation. For ® example, the list below contains approximate quantities of items typically needed for mounting a unit on a wood frame wall structure with standard full length mounting bracket or flanges.

  • Page 15: General Information

    Extensions should be cut flush with the inside wall for applications without duct work. Applications using duct work should be designed and installed in accordance with all applicable safety codes and standards. Marvair strongly recommends referring to the current edition of the National Fire Protection ®...

  • Page 16: Hanging The Avg Unit On The Wall

    5.12 Hanging the AVG Unit on the Wall 1. Remove and discard the 4 x 4 shipping boards attached to the base of the unit. 2. The AVG models have built-in mounting flanges. See Figure 2. 3. Refer to Figure 2. Attach the bottom support bracket to the wall using appropriate 3/8" diameter hardware.

  • Page 17: Gas Supply & Piping

    5.13 Gas Supply and Piping WARNING CARBON MONOXIDE, FIRE AND EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury, death and/or property damage. Models designated for Natural Gas are to be used with Natural Gas ONLY, unless properly converted to use with LP gas.
  • Page 18 WARNING FIRE HAZARD Failure to follow safety warnings exactly could result in serious injury, death and/or property damage. Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace. AVERTISSEMENT DANGER D'INCENDIE Ne pas respecter exactement les AVERTISSEMENTS de sécurité...
  • Page 19 AVERTISSEMENT DANGER D'INCENDIE OU D'EXPLOSION Ne pas installer correctement le connecteur métallique du gaz peut causer des dommages corporels graves ou mortels et/ou des dégâts matériels. Un connecteur métallique de gaz flexible ondulé doit être correctement installé, ne doit pas dépasser du côté...

  • Page 20: Electrical Connections

    a. If test pressure does not exceed 1/2" psi, isolate the furnace from the gas supply piping system by closing the equipment shutoff valve. b. If test pressure exceed 1/2" psi, the furnace and its manual equipment shutoff valve must be disconnected from the gas supply piping system.
  • Page 21 CAUTION 3. This system contains components that require phasing for correct rotation. Failure to observe rotation and correct on start-up will cause damage not covered by the Marvair warranty. ® ATTENTION 3. Ce système contient des composants qui nécessitent un phasage pour une rotation correcte. Il faut observer le sens de rotation et le corriger tout de suite s'il y a lieu au démarrage, sous peine de...
  • Page 22 Schematics Figure 3a. Typical Electrical Schematic - AVG without Economizer GPac Installation Instructions 11/07-2...
  • Page 23 Figure 3b. Typical Electrical Schematic - AVG with Economizer GPac Installation Instructions 11/07-2...

  • Page 24: Venting Of The Furnace

    5.17 Venting of the Furnace The AVG wall mounted air conditioner with gas heat furnace is a Category I furnace, i.e., a central furnace which operates with a non-positive vent static pressure and with a flue loss not less than 17%. The furnace is fan assisted, i.e., an appliance equipped with an integral means to either draw or force products of combustion through the combustion changer and/or the heat exchanger.

  • Page 25: Chapter 6 Checks & Adjustments

    3. The intake of the combustion air is thru louvers located on the side of the AVG wall mounted air conditioner with gas heat furnace. Maintain 19" clearance between the louvers and anything that would restrict or impede air flow into the louvers. Chapter 6 Checks and Adjustments The unit must be operating in the heating mode while doing the following check and adjustments.
  • Page 26 MANIFOLD PRESSURE TAP Figure 5. Gas Valve 2. Turn gas ON. Operate furnace by using a jumper wire on the “10” and “4” thermostat connections on the low voltage board. The board is located in the electrical compartment in the AVG unit. 3.

  • Page 27: Natural Gas Input

    6.5 LP Gas Conversion The following instructions are for the field conversion of a Marvair AVG gas heat with air conditioning from using Natural Gas to LP (propane) gas. This kit includes parts required to convert a burner assembly beginning with model number HMG075-125 only.
  • Page 28 Failure to properly install the LP gas conversion kit could result in death, serious injury or property damage. The Marvair AVG unit is shipped from the factory for operation on natural gas. When used on LP gas, the gas orifice spud and the gas valve spring must be replaced and the gas valve regulator must be adjusted.
  • Page 29 11. Reconnect the gas supply pipe, using pipe joint compound resistant to LP gas on the pipe threads, to the gas valve. Tighten the union fitting. 12. Reconnect wires to the gas valve following the wiring diagram provided on the AVG unit. 13.

  • Page 30: High Altitude Installation

    The Marvair AVG unit is shipped from the factory for operation at sea level up to 2,000 feet (610 m). For installations from 2,000 (610 m) to 7,000 feet (2,134 m), see the following chart for proper sizing of the orifice.

  • Page 31: Changing The Orifice

    HMG 22,500 BTUH/ Burner HMG 25,000 BTUH/ Burner (Used with AVG24- AVG 36 Heat Exchangers) (Used with AVG42- AVG 60 Heat Exchangers) Orifice- Natural Orifice- Propane Orifice- Natural Orifice- Propane Altitude Drill Size Dia. Drill Size Dia. Altitude Drill Size Dia.

  • Page 32: Temperature Rise Range

    Nominal cooling capacities are 24,000 BTUH, 30,000 BTUH, 36,000 BTUH, 42,000 BTUH, 48,000 BTUH and 60,000 BTUH with EER’s of 8.6. Models AVG24, 30 & 36 are factory set up for natural gas with nominal heating capacities of 45,000 BTUH, 67,5000 BTUH and 90,000 BTUH. Models AVG42, 48 & 60 are factory set up for natural gas with nominal heating capacities are 75,000 BTUH, 100,000 BTUH and 125,000 BTUH.

  • Page 33: Cooling Mode

    All GPac air conditioners with gas heat furnaces are tested in accordance with UL standard 1995 and listed by ETL. Performance and Efficiency Ratings are in accordance with the Air Conditioning and Refrigeration Institute (ARI) standard 390. 7.1 Cooling Mode The GPac air conditioners with gas heat use R-22 refrigerant in a conventional vapor-compression refrigeration cycle to transfer heat from air in an enclosed space to the outside.
  • Page 34 Low Pressure By-Pass Time When starting, the low pressure switch (LPS) fault condition will be by-passed for 3 minutes before the contactor is de-energized. Post Purge Upon a call for indoor airflow “G” the blower will energize immediately. When in the cooling mode, the blower will remain energized for 10 to 90 seconds (adjustable) after the compressor has been de-energized.

  • Page 35: Heating Mode

    Low Pressure Switch The low pressure switch is mounted on the compressor suction line. It is designed to open if the refrigerant pressure drops to 35 PSIG; it resets when the pressure rises to 60 PSIG. The switch protects the unit if airflow through the indoor blower is impeded, if the blower motor fails, or if there is a loss of refrigerant.

  • Page 36: Ventilation Options

    GreenWheel ERV reduces the energy load of the outside air. Exhausting stale, inside air keeps indoor pollutants and harmful gases to a minimum. The Marvair GreenWheel ERV has been tested and certified according to ARI Standard 1060.

  • Page 37: Economizer Operation

    7.4 Economizer Operation - Cooling Cycle (GPac unit with Economizer only) The economizer is a regulated damper system with controls. The damper regulates the circulation of outside air into the enclosure (when the outdoor air conditions are suitable) to reduce the need for mechanical cooling, save energy, and extend compressor life.

This manual is also suitable for:

Avg30Avg42Avg48Avg60Avg36

Table of Contents