Summary of Contents for VOLTA AIR IQ Series
- Page 1 NIAC.12.70 – V3 OLTA OWNER’S MANUAL – IQ S ERIES ECHNOLOGY (VAT) You shall read and understand this manual, before you operate or install the air conditioning unit...
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Page 2: Table Of Contents
Content Introduction ............................ 4 Technical Specifications ........................5 A/C Unit and Accessories ........................ 6 Included Parts: ..........................6 Optional Parts:..........................6 IQ System Overview ........................7 Description ............................7 Condenser unit ..........................8 Evaporator unit ........................... 9 Battery box ..........................10 Controller .......................... - Page 3 Battery Box Wiring ......................... 25 Condenser Installation ......................26 Bulk-head Installation ....................... 30 Evaporator installation ......................32 Hose Preparation & Installation ....................35 Controller Installation ....................... 38 Testing for Leaks and Evacuation ....................39 Leak Testing ........................... 39 Evacuate System ........................39 Charging the System........................
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Page 4: Introduction
If you are in need of additional information, contact Volta Air Technology directly. Volta Air Technology’s warranty shall not apply to any product which has been installed, maintained, repaired or altered as, in the manufacturer’s judgment, to affect the product’s integrity. -
Page 5: Technical Specifications
Owner’s Manual Truck No-Idle AC Unit Technical Specifications Model 12440-IQ Voltage Coolant type R134A Coolant weight 0.6 kg (1.3 lbs) Compressor type DC Brushless Electrical compressor Cooling Capacity 2.1 kW (7200 BTUh) Working Current Max Current Evaporator Airflow 260 CFM Condenser dimensions 762 x 711 x 482mm (30 x 28 x 19in) Condenser weight... -
Page 6: A/C Unit And Accessories
Owner’s Manual Truck No-Idle AC Unit A/C Unit and Accessories Included Parts: • Under bunk evaporator unit, with vent ducting and mounting hardware • Electric cables, plugs, and connections • Controller Unit • Refrigeration hoses, #6, #12 size (14ft each) •... -
Page 7: Iq System Overview
Owner’s Manual Truck No-Idle AC Unit IQ System Overview Condenser Battery Box Bulkhead Evaporator Controller The controller communicates to the evaporator and condenser units Inputs: temperature sensors, pressure switch Outputs: blower speed; high, medium, low, compressor/condenser fan signal... -
Page 8: Description
Owner’s Manual Truck No-Idle AC Unit Description The IQ AC unit is a split system with a wall-mount condenser unit secured outside on the cab wall and under bank evaporator box mounted inside under the bed. A digital control panel located inside the cab to monitor the temperature and air circulation when unit is working. -
Page 9: Evaporator Unit
Owner’s Manual Truck No-Idle AC Unit Item Description Part ID Condenser coil ACC001 Condenser fan – DC 12V – 12A FAN005 Filter-drier RDF002 Compressor – DC 12V – 60A CMP001 Safety pressure switch BPS002 Electrical terminal block TRB001 Fan PWM driver– DC 12V – 15A PWM001 Compressor relay REL001... -
Page 10: Battery Box
Owner’s Manual Truck No-Idle AC Unit Item Description Part ID Evaporator coil AEC001 Air filter AFL001 Blower – DC 12V – 10A BLW001 Blower PWM driver - DC 12V – 15A PWM002 Thermostatic Expansion Valve (TXV) TXV001 Air temperature sensor TSE001 Defrost temperature sensor TSE002... - Page 11 Owner’s Manual Truck No-Idle AC Unit Item Description Part ID AL battery box – quad batteries POW002 6V deep cycle battery Rubber Strip Sealing SIL001 Battery box attachment bracket BRK002 Bolt-washer-nylon nut 3/8” x 1 ½” Auxiliary battery fuse holder - 150A fuse FHB001 AC unit fuse holder –...
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Page 12: Controller
Owner’s Manual Truck No-Idle AC Unit Controller The digital controller enables you to adjust the cabin air temperature as well as changing the blower fan speed. The voltage indicator lights on the control panel let you monitor the charge level of the batteries. Item Description On-off light indicator Unit on-off button... -
Page 13: Controller Operation
Owner’s Manual Truck No-Idle AC Unit Controller operation Under normal condition, when you push the power button (item 2) on the controller, the light indicator (item 1) goes on and the digital display (item 3) shows the temperature of the air passing through the evaporator box. -
Page 14: Preparation For Installation
Owner’s Manual Truck No-Idle AC Unit Preparation for Installation 1. Mounting surfaces must be clean and free of debris 2. Decide on location of the evaporator and condenser 3. Prepare additional mounting hardware since there are differences between vehicle types and models 4. -
Page 15: Required Tools And Materials
Owner’s Manual Truck No-Idle AC Unit Required Tools and Materials Required Tools Required Material • Tape measure • Zap straps / Zip ties • Utility knife • Silicone • Drill/Impact gun • 3/16” rivets • Hole-saw kit • 4 gauge battery wire (+/-) 20-25’long •... -
Page 16: Components Overall Dimensions
Owner’s Manual Truck No-Idle AC Unit Components overall dimensions Battery box... -
Page 17: Condenser Unit
Owner’s Manual Truck No-Idle AC Unit Condenser unit... -
Page 18: Evaporator Unit
Owner’s Manual Truck No-Idle AC Unit Evaporator unit... -
Page 19: Controller
Owner’s Manual Truck No-Idle AC Unit Controller... -
Page 20: Battery Box Installation
Owner’s Manual Truck No-Idle AC Unit Battery Box Installation Note: Read/note entire battery assembly installation documents before starting • Make the 2x 1 ¼” holes at the front wall of the AL box for passing the power cables. • Make sure that they are not creating restriction placing batteries inside the box or mounting... - Page 21 Owner’s Manual Truck No-Idle AC Unit • Place the batteries inside the box with the orientation shown in the picture. • Prepare the battery mounting brackets (item 6) by screwing 2 holes at the bottom of them with ¼” drill bit to be able to attach them to the battery box •...
- Page 22 Owner’s Manual Truck No-Idle AC Unit • Orientate the box so the lid hinges are closer to the front of the vehicle as shown in the diagram • Mount the battery box securely with 4x battery box mounting Truck Cabin brackets (item using...
- Page 23 Owner’s Manual Truck No-Idle AC Unit Assembled and Mounted Battery Box...
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Page 24: Connecting Main Batteries To Auxiliary
Owner’s Manual Truck No-Idle AC Unit Connecting Main Batteries to Auxiliary Caution: Attach main battery wires after all other electrical and contacts are done. Check the polarity before installing the cables. • If running 5 - 15’ use 4 AWG wire. Wire gauge is based on 135C insulation; for lower temperature rated jackets and or applications inside engine spaces use next largest gauge •... -
Page 25: Battery Box Wiring
Owner’s Manual Truck No-Idle AC Unit Battery Box Wiring • When crimping wires ensure you have the proper ratings and terminal strength, test all terminals to ensure tight and secure • Cover terminal and wire joint with shrink tubing and use torch to seal •... -
Page 26: Condenser Installation
Owner’s Manual Truck No-Idle AC Unit Condenser Installation Note: It is recommended to make a card board trace of the unit and where mounting holes are to make the process easier • Measure and mark holes for condenser plate and verify inside position •... - Page 27 Owner’s Manual Truck No-Idle AC Unit • Drill holes (5/16”) for bolts • Insert bolts with washers from inside adding square rubber pads between the back wall and condenser unit Note: The rubber spacers help reduce noise during operation Note: Add additional support if needed on condenser mounting area Rubber pad...
- Page 28 Owner’s Manual Truck No-Idle AC Unit • Mount the condenser on the bolts • Add washer and luck-nuts, tighten evenly and ensure condenser unit is snug to the back wall...
- Page 29 Owner’s Manual Truck No-Idle AC Unit • Run the main power cable and control wire safely behind the condenser plate and secure...
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Page 30: Bulk-Head Installation
Owner’s Manual Truck No-Idle AC Unit ulk-head Installation • Locate a good position for the bulkhead by looking at potential obstacles inside the vehicle and where the evaporator can be mounted • Measure and then mark the holes for the bulkhead •... - Page 31 Owner’s Manual Truck No-Idle AC Unit • Prior to mounting the bulkhead apply silicon to the inside. This will prevent any leaks to the inside of the cab • Push the bulkhead firmly into the spot and mount • Attach using rivets or self-tapping screws •...
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Page 32: Evaporator Installation
Owner’s Manual Truck No-Idle AC Unit Evaporator installation Decide on the best position for mounting the evaporator. It can be inside the baggage box, inside the cabinets, or under the bed. Note: Consider these points when locating the evaporator: ➢ Running the AC hoses from condenser unit to bulkhead fitting that is mounted on the back wall outside of the cabin, and then from bulkhead to the evaporator ➢... - Page 33 Owner’s Manual Truck No-Idle AC Unit • Locate the evaporator at the desired position • Secure the evaporator with at Air gap least 3 x self-taps or bolts Note: If hoses to the evaporator cannot be attached after it is mounted, refer to section on making hose/lines now (p.
- Page 34 Owner’s Manual Truck No-Idle AC Unit • Attach high and low AC lines to evaporator • Run hose neatly and safely inside the cabin and secure it on the walls with clamps and zap straps • Attach evaporator control and sensor wiring harnesses...
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Page 35: Hose Preparation & Installation
Owner’s Manual Truck No-Idle AC Unit Hose Preparation & Installation Note: When routing the hoses, ensure they do not touch sharp metal or moving parts. A rubber grommet or similar protector should be used in any areas of concern. Allow sufficient slack to avoid tight bends •... - Page 36 Owner’s Manual Truck No-Idle AC Unit Note: Attach the 90 degree fittings with the charging ports to the end of the hose that will be inside the cab at the bulkhead. This will be easiest for testing and charging the unit and also protects the ports from dirt and damage Charging ports •...
- Page 37 Owner’s Manual Truck No-Idle AC Unit • Once the lines have been fastened at all connection points, zap-strap / zip-tie the hoses and wiring • After fastening together, use the appropriate C-clamps (2”), and screw or rivet the clamp to the wall to minimize vibration Note: Insulate the suction line and fittings inside the cabin and on the evaporator using the cork thermal insulating tape provided in accessory bag to avoid any moisture/condensation...
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Page 38: Controller Installation
Owner’s Manual Truck No-Idle AC Unit Controller Installation Note: Make sure there is no power to the controller before the whole system is installed • Wire should already be ran through the hole that was made while installing the evaporator •... -
Page 39: Testing For Leaks And Evacuation
Owner’s Manual Truck No-Idle AC Unit Testing for Leaks and Evacuation Note: The IQ No-Idle APU is a two part air conditioning system that requires the unit to be installed and then charged using R134a refrigerant. Leak Testing • The charge points should be located on each of the refrigerant hoses on the outside of the vehicle at the bulkhead •... -
Page 40: Charging The System
Owner’s Manual Truck No-Idle AC Unit Charging the System Note: The system should be charged by a qualified air conditioning technician using the following guideline • If using the full length of supplied refrigerant hose you will require 1.3lbs of R134a refrigerant. -
Page 41: Testing And Starting The System
Owner’s Manual Truck No-Idle AC Unit Testing and Starting the System Caution: Ensure that the refrigerant hoses and wires are secured and tight to prevent any rubbing against sharp objects or moving parts. Keep hoses and wires away from any extreme heat source (>200F°) such as the exhaust system •... -
Page 42: Iq Installation Checking List (Icl)
Owner’s Manual Truck No-Idle AC Unit IQ Installation Checking List (ICL) Item No. Title Description Check Before Running Condenser mounting Condenser unit is attached to the wall securely Terminal block connection All the connections on the terminal block are tight Evaporator mounting Evaporator unit is attached to the floor securely and drain pipe is not blocked Battery box is attached to the frame securely (safe gap between the box and... -
Page 43: Maintenance
Owner’s Manual Truck No-Idle AC Unit Maintenance Regular servicing is required in order to optimize the life and reliability of your AC unit as well as the battery box. The recommended scheduled maintenance is provided in below table: Item no. description Interval Check air inlet and outlet of the evaporator box for possible... -
Page 44: Iq Air Conditioning Troubleshooting
Owner’s Manual Truck No-Idle AC Unit IQ Air Conditioning Troubleshooting Caution: Beware of unexpected starting of the unit. Ensure that the controller is OFF before touching the Condenser or evaporator unit. Due to control system requirement, unit may start the fans, blowers, and compressor unexpectedly. •... - Page 45 Owner’s Manual Truck No-Idle AC Unit IQ Air Conditioning Troubleshooting Controller Fault Code Indication Fault Code Description Action Items Under voltage fault: input voltage is lower than 9 V 1,2,3,4,5,6,7 Over voltage fault: input voltage is higher than 16 V Defrost mode: defrost temp.
- Page 46 Owner’s Manual Truck No-Idle AC Unit Compressor is working, not enough refrigerant Compressor is working, not enough refrigerant flow 21,30 Compressor is working, defective / loose expansion valve 38,30 Condenser fan not working Bad connections, defective relay / fuse / fan switch / fan motor 22,23,24,15,37 Compressor not cycling while blowing cold air Defective temperature sensor / controller...
- Page 47 Owner’s Manual Truck No-Idle AC Unit Check defrost temperature sensor plug and continuity to controller Check air temperature sensor plug and continuity to controller Check controller connection to the wiring harness at controller plugs Check evaporator blower fuse (20 amp) inside the condenser unit Check evaporator unit connections to the wiring harness at 3 pins plugs and input voltage Check PWM driver and its connections inside the evaporator box Check the temperature set point on the controller...
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Page 48: Electrical Schematic Wiring Diagram
Owner’s Manual Truck No-Idle AC Unit Electrical schematic wiring diagram... -
Page 49: Warranties And Contact Information
Truck No-Idle AC Unit Warranties and Contact Information Volta Air Technology warranties the No Idle AC unit air conditioner for 12 months from date of purchase The warranty is a limited warranty and covers all parts shown to be defective...
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Questions and answers
Temperature set to 19, display continuously shows 26 and air is not cold
If the VOLTA AIR Series displays 26°C while set to 19°C and does not provide cold air, possible causes include:
- Compressor not starting due to a defective compressor or faulty compressor connection (items 19, 20, 36).
- Compressor going on and off, possibly due to refrigerant overcharge or condenser malfunction (items 12, 25).
- Compressor is working but refrigerant is low or not flowing properly (items 11, 21, 30).
- Defective or loose thermostatic expansion valve (item 38).
- Condenser fan not working due to bad connections, defective relay, fuse, fan switch, or fan motor (items 22, 23, 24, 15, 37).
- Defective temperature sensor or controller (items 39, 37).
These issues can prevent the system from cooling effectively even when the temperature is set correctly.
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