Table of Contents
Advertisement
Installation & Operation Manual
9-11 EER Vertical Wall-Mount Air Conditioners
AVPA 12-20-24-30-36-42-48-60-72
HVEA 24-30-36-42-49-60
AVHA 12-20-24-30-36-42-48-60
HVESA 36-42-49-60
This manual may include information for options and features which may not be
included on the unit being installed. Refer to the unit data label or Model Identification
to determine which features and options this unit is equipped with.
INSTALLER: Affix the instructions on the inside of the building adjacent to the thermostat.
END USER: Retain this manual for future reference.
A Division of the AIRXCEL
P.O. Box 400 • Cordele, Georgia 31010 • 156 Seedling Drive • Cordele, Georgia 31015
E-mail: marvairsales@airxcel.com • Internet: www.Marvair.com
The most current version of this manual can be found at www.Marvair.com.
MODELS:
AVHSA72
IMPORTANT
Manufactured By:
(229) 273-3636 • Fax (229) 273-5154
Air Conditioner Product Manual
Vertical Wall-Mount Air Conditioners
with Front Control Box Panel
Commercial Group
®
Marvair ComPac Installation & Operation Manual 03/2019 Rev.22
Part #01655
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Marvair AVHSA72
Summary of Contents for Marvair AVHSA72
- Page 1 P.O. Box 400 • Cordele, Georgia 31010 • 156 Seedling Drive • Cordele, Georgia 31015 (229) 273-3636 • Fax (229) 273-5154 E-mail: marvairsales@airxcel.com • Internet: www.Marvair.com The most current version of this manual can be found at www.Marvair.com. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22 Part #01655...
- Page 2 How To Use This Manual This manual is intended to be a guide to Marvair ComPac family of vertical air conditioners. It contains installation, troubleshooting, maintenance, warranty, and application information. The information contained in this manual is to be used by the installer as a guide only. This manual does not supersede or circumvent any applicable national or local codes.
-
Page 3: Table Of Contents
Electrical Connections ...........................32 Chapter 3 Start-Up Check-Out of Cooling Cycle .........................36 Check-Out of Heating Cycle ........................36 Chapter 4 Troubleshooting Overview ..............................37 Failure Symptoms Guide ........................37 Compressor Troubleshooting .........................38 Control Board Diagnosis ........................39 Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... - Page 4 Table 3 Shipping Weights .........................6 Table 4 ComPac I & ComPac II Ambient Temperature Operating Range ..........7 Table 5 Minimum Clearances .........................24 Table 6 Voltage Limitations ........................24 Table 7 Maximum Static Pressure ......................28 Marvair ComPac Installation & Operation Manual 03/2019 Rev.22...
-
Page 5: Chapter 1 Compac Description & Specifications
C = Economizer-Equipped UL 1995, 4th edition AVH models utilize a 1-Stage compressor, except the AVHSA72, which has a 2-Stage compressor as standard. All HVES models feature a 2-Stage compressor. The standard configuration is with the supply (conditioned) air at the top of the unit and the return air below it. In the reverse air flow configuration, the return is at the top and the supply air below it. -
Page 6: Air Flow, Weights And Filter Sizes
Air Flow, Weights and Filter Sizes Complete electrical and performance specifications and dimensional drawings are in the Marvair ComPac Product Data Sheets. Note: Follow local codes and standards when designing duct runs to deliver the required airflow. Minimize noise and excessive pressure drops caused by duct aspect ratio changes, bends, dampers and outlet grilles in duct runs. -
Page 7: General Operation
Table 4. ComPac I & ComPac II Ambient Temperature Operating Range Refrigerant Cycle (Cooling Mode) Marvair ComPac air conditioners use R-410A refrigerant in a conventional vapor-compression refrig- eration cycle to transfer heat from air in an enclosed space to the outside. A double blower assembly blows indoor air across the evaporator. - Page 8 40 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. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22...
-
Page 9: Optional Controls And Packages
Used on single phase equipment to give the compressor higher starting torque under low voltage conditions. Generally not recommended on units with scroll compressors. Extreme Duty Package (not available on AVPA12) The Extreme Duty Package allows selected Marvair ComPac air conditioners to operate in extremely ®... - Page 10 20°F (-7°C) or minus 20°F (-29°C). Please refer to Hot Gas Bypass Application Bulletin for details. Electric Reheat Dehumidification Not available on the AVPA12 A humidity controller allows electric heat and cooling to operate simultaneously. Marvair air conditioners ® equipped with the dehumidification option allow the indoor humidity of the controlled environment to be maintained at or below a certain humidity set point.
-
Page 11: Electrical Operation
When the 16 gauge painted steel or the aluminum is used, only the side, top and front panels are 16 gauge or aluminum. Contact your Marvair representative for color chips. The cabinet can also be constructed of type 316 stainless steel. Two stainless steel cabinet constructions are available- the... -
Page 12: Figure 1A. Typical Electrical Schematic - Model Avpa & Avha
Figure 1a. Typical Electrical Schematic - ComPac (Non-Economizer), Model AVPA/AVHA ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 13: Figure 1B. Typical Electrical Schematic - Model Avpa & Avha
Figure 1b. Typical Electrical Schematic - ComPac (Economizer), Model AVPA/AVHA ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 14: Figure 1C. Typical Electrical Schematic - Model Hvea
Figure 1c. Typical Electrical Schematic - ComPac (Non-Economizer), Model HVEA ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 15: Figure 1D. Typical Electrical Schematic - Model Hvea
Figure 1d. Typical Electrical Schematic - ComPac (Economizer), Model HVEA ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 16: Figure 1E. Typical Electrical Schematic - Model Hvesa (Alternate Construction)
Figure 1e. Typical Electrical Schematic - ComPac (Economizer), Model HVESA (Alternate Construction) ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 17: Figure 1F. Typical Electrical Schematic - Model Hvesa (Alternate Construction)
Figure 1f. Typical Electrical Schematic - ComPac (Economizer), Model HVESA (Alternate Construction) ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 18: Figure 1G. Typical Electrical Schematic - Model Avhsa (Alternate Construction)
Figure 1g. Typical Electrical Schematic - ComPac (Economizer), Model AVHSA (Alternate Construction) ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 19: Economizer Components
Note: having all four switches in the down position is the same setting as having the #1 switch in the Up position. DANGER Sever hazard. The economizer contains moving parts capable of causing serious injury or death. Disconnect power before removing the covering panel. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 20: Figure 2. Dry Bulb Sensor
If outside air is desired during mechanical cooling or whenever the indoor blower is running, jumper pins 2 & 3. Refer to item 8 in Figure 4 for the location of the jumper. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 21: Figure 3. Enthalpy Sensor Temperature Control Points
Jumper W3 allows us to use alternative brands at a future date. On all current air conditioners, pins 1 & 2 are jumpered on W3. See item 4 in Figure 4. Figure 3. Enthalpy Sensor Temperature Control Points Marvair Economizer Controller Figure 4. Electrical Controls, HVESA Alternate Construction Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 22: Figure 5. Economizer Control Board
9. Enthalpy Dip Switches (MAR) terminal Set points are same as previous Honeywell controller. Factory setting is 4 (63°F/17.2°) 1=A (73°F/23.8°C) 2=B (70°F/21.1°C) 3=C (67°F/19.4°C) 4=D (63°F/17.2°) Figure 5. Economizer Control Board Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 23: Chapter 2 Installation
National Fire ® Protection Association Standards 90A and 90B before designing and installing duct work. The duct system must be engineered to insure sufficient air flow through the unit to prevent over-heating of Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 24: Table 5 Minimum Clearances
Electrical Rating Designations* Nominal Voltage 208/230 208/230 Phase Minimum Voltage Maximum Voltage * Letters refer to model number code designations. Refer to page 5. Table 6. Voltage Limitations Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 25: Installation Materials
Installation Materials Installation Kits Marvair ComPac units are shipped with one 12 Ga. "L" shaped bottom bracket. If you have not yet unpacked the unit, follow the instructions in section 2.1. All units have built-in full length mounting flanges. Therefore, use of mounting brackets is not required. -
Page 26: Porting And Duct Work
Combination Aluminum Supply and Return Grille for AVPA12 (economizer unit) ..... P/N 80681 26” x 17” (660 mm x 432mm) 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. -
Page 27: Figure 6. Back Panel Configuration For Avpa/Avha12 Air Conditioners
BACK PANEL CONFIGURATION FOR 17" x 17" (432mm x 432) WALL SLEEVE FOR 26" x 17" (660mm x 432) WALL SLEEVE Figure 6. Back Panel Configuration for ComPac II AVPA12 Air Conditioners ® Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 28: Table 7 Maximum Static Pressure
Attach the perimeter flange of the wall sleeve to the framed opening with appropriately sized screws. Since electric heat can be added after the unit has been installed, Marvair recommends that all installations have the 1” (25.4 mm) clearance around the wall sleeve. -
Page 29: Fresh Air Hood Installation
7. Check the fit of each sleeve to its mating flange for possible air leaks. Apply silicone sealer to close any gaps. Install the air return and supply grilles. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 30: Figure 8A. Wall Mounting Detail
FLOW WITHIN 24" (610 MM) OF BOTH SIDES AND IN FRONT OF THE UNIT CONDENSER AIR IN CONDENSER AIR IN CONDENSER (BOTH SIDES) (BOTH SIDES) AIR OUT Figure 8b. AVPA/AVHA12 ComPac Wall Mount Detail Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 31: Vertical Economizer And Gravity Dampers (Hvesa 36 & 60 Models Only)
Vertical Economizer and Gravity Dampers (HVESA36/60 & AVHSA72 Models Only) Gravity Dampers: There is a gravity-operated economizer exhaust outlet damper located on each side of the HVESA unit. The dampers are covered by a hood to exhaust the air in upward direction, away from the economizer inlet. -
Page 32: Electrical Connections
Note: Power supply service must be within allowable range (+10% - 5%) of rated voltage stamped on the unit rating plate. To operate nominal 230/208V unit at 208V, change the transformer line tap from 240V to 208V following the instruction on wiring label in unit. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... - Page 33 Continuous fan operation: For continuous indoor fan operation on single units, install a jumper between terminals 8 and 3. For continuous indoor fan operation on dual units using the older LL357D4, install jumper between 8 and 3 and remove jumper between 1 and 3. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22...
-
Page 34: Figure 9A. Humidistat Wiring Details
See CommStat 3 Product Data Sheet for installation and programming instructions. Figure 9a. Humidistat (P/N 50254) Wiring to a ComPac Air Conditioner with Reheat. ® Figure 9b. Thermostat Connection Diagram Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 35: Figure 9C. Commstat™ Touch Hvac Controller Wiring Detail
Figure 9c. CommStat Touch Wiring Diagram Figure 9d. CommStat 3 Wiring Diagram Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 36: Chapter 3 Start-Up
NOTE: (Economizer Equipped models only) The damper blade should remain closed during the heating cycle (unless the minimum position potentiometer has been set for constant ventilation A fully counterclockwise position corresponds to full closure of the damper. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 37: Chapter 4 Troubleshooting
2. Check for proper charge and possible refrigerant leak. 3. Component failure. 3. Check internal components, especially compressor for proper operation. 4. Unit undersized for job. 4. Add additional units for greater capacity. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 38: Compressor Troubleshooting
NOTE: Feel the top of the compressor to see if it has overheated. If it is hot, the internal overload may be open. You may have to wait several hours for it to reset. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 39: Control Board Diagnosis
The unit must be in the cooling mode (compressor contactor Closed) before a fault condition can occur. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 40: Chapter 5 Maintenance
Oiling of the condenser fan motor or the evaporator blower motor is not recommended. DANGER Sever hazard. The economizer contains moving parts capable of causing serious injury or death. Disconnect power before removing the covering panel. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22... -
Page 41: Chapter 6 Warranty
EXTENT PERMITTED BY LAW. IN NO EVENT SHALL ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR USE EXCEED THE TERMS OF THE APPLICABLE WARRANTY STATED ABOVE AND AIRXCEL COMMERCIAL GROUP SHALL HAVE NO OTHER OBLIGATION OR LIABILITY. IN NO EVENT SHALL MARVAIR BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OR MONETARY DAMAGES. -
Page 42: Parts List And Exploded Views
EXPLODED VIEWS AND PARTS LISTS Current parts lists and exploded views of the unit can be found on our web site at www.Marvair.com. Click on the Service and Parts in the menu on the left hand side of the Home page. From the drop down menu, select Exploded Views. - Page 43 (25.4 mm) clearance must extend on all sides of the supply duct for the first 3 feet (1 meter) from the unit. IMPORTANT: Marvair requires a minimum of 1" (25.4 mm) from the surface of any supply ducts to combustible material for the first 3 feet (1 meter) of the duct.
- Page 44 15. Place the wiring diagram provided with the heater kit inside the zip lock bag which is affixed to the back side of the control box cover. 16. Replace the control box cover, the bottom front cover and the top front panel. Marvair ComPac Installation & Operation Manual 03/2019 Rev.22...
- Page 45 Marvair ComPac Installation & Operation Manual 03/2019 Rev.22...
Need help?
Do you have a question about the AVHSA72 and is the answer not in the manual?
Questions and answers