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Summary of Contents for VAT PLUTO Series
- Page 1 RU.12.100/70 – V0 OLTA ’ – P WNER ANUAL LUTO SERIES ECHNOLOGY (VAT) You shall read and understand this manual, before you operate or install the refrigerator unit...
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Page 2: Table Of Contents
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Contents Introduction ............................ 4 Safety Instructions .......................... 5 Safety Symbols & Messages ......................5 Intended Use ..........................5 Precautions ..........................6 Technical Specifications ........................7 System Description ........................11 Introduction..........................11 Condenser unit .......................... - Page 3 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Evaporator Installation ......................28 Refrigerant Hose Installation ....................29 Power Cables Installation ......................33 Drain Installation ........................35 Controller Installation ....................... 36 Energy Pack Connection ......................37 Testing for Leaks and Evacuation ....................38 Leak Testing ...........................
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Page 4: Introduction
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Introduction Volta Air Technology provides this document for informational purposes only. Volta Air Technology has devoted industrious efforts to compile a manual to assist customers with operation and product usage, however Volta Air Technology makes no representations warranties express or implied with respect to the information, recommendations and descriptions contained within this document. -
Page 5: Safety Instructions
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Safety Instructions Safety Symbols & Messages DANGER! This symbol and alert message indicates an imminent hazard and failure to avoid hazard will result in death WARNING! This symbol and alert message indicates a hazardous situation which, if not avoided, could result in death or serious injuries CAUTION! This symbol and alert message indicates a hazardous situation which, if not avoided... -
Page 6: Precautions
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit CAUTION! Do not use these units for other purposes than cooling reefer vans. The products were not designed to withstand explosions or fires. There is a risk of refrigerant leaking from the products that may cause property damage, personal injury and in uncommon cases death. -
Page 7: Technical Specifications
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Technical Specifications Model Pluto Pluto + Voltage Refrigerant R134a Refrigerant weight 1.3 kg (2.8 lbs) 1.9 kg (4.2 lbs) +5℃（41℉） 2100 W (7200 BTU/H) 3200 W (11000 BTU/H) 0℃ （32℉） 1700 W (5800 BTU/H) 2600 W (8900 BTU/H) -15℃... - Page 8 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Deforester Hot gas defrost Control panel Digital (Celsius – Fahrenheit) +5℃（41℉） 10-12 m³ (353-424 ft³) 13-15 m³ (424-494 ft³) 0℃（32℉） 8-10 m³ (282-353 ft³) 11-13 m³ (353-424 ft³) -15℃（5℉） 6-8 m³ (212-282 ft³) 9-11 m³...
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Page 9: System Description
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit System Description Introduction Pluto refrigeration unit is intended for usage in insulated vans or trailers to achieve temperatures from -12°C to 5°C (10°F to 41°F). The unit is of a split system with the outside condenser unit and inside evaporator unit. - Page 10 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Condenser unit contains the condenser coil, condenser fan, receiver-drier, compressor, energy stabilizer module, Relay-fuse box, safety pressure switches, and electrical terminal block. Item Description Part ID Condenser coil RCC005 Electrical terminal block TRB001 Compressor suction port –...
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Page 11: Evaporator Unit
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Evaporator unit The evaporator unit is mounted inside the insulated compartment and circulates the cold air. It is connected to the condenser unit with 3 refrigerant lines; suction, liquid, and hot gas. Also, it needs to be connected to a water drain to allow the condensed water out of the cooled area. -
Page 12: Controller
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Controller The digital controller enables the operator to adjust the box temperature as well as monitoring the system; voltage, cooling mode, operating hours, and possible fault codes. User can set up the controller for automatic or manual defrost and also activate the heating mode if is required in cold environment. -
Page 13: Controller Parameter Setting
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Decrease Button While in normal controller display pressing the decrease button will lower the set desired temperature in the setting mode the decrease button will cycle through parameter codes. When changing parameter values this will decrease the current set parameter Setting Button Pressing the setting button will display the current set desired temperature. -
Page 14: Defrost Operation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Defrost operation Defrost mode starts only if the defrost temperature sensor (evaporator core temperature) is lower than the limit temperature set at F01. Defrost stops if the defrost temperature reaches the termination temperature set at F02, the operation time is over, or the defrost button held for 3 seconds. - Page 15 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit SHr 3 Ambient temperature sensor is short circuit HPEr System high pressure System shuts down alarm LPEr System low pressure alarm HUEr System high voltage > 16V System shuts down LUEr System low voltage <...
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Page 16: Refrigeration Cycles
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Refrigeration cycles Cooling Cycle In cooling mode system works as a vapor compression refrigeration cycle. Compressor pushes the high pressure/temperature refrigerant through the condenser coil. Superheated refrigerant passes some heat to ambient air through the condenser heat exchanger coil and turn to liquid. Subcooled liquid gets clean and dry in receiver-drier and goes to TXV (thermostatic expansion valve). - Page 17 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Hot gas solenoid valve Cond. Pressure control valve TXV equalizer line Evaporator Condenser Receiver-Drier CPCS Discharge charging port Comp. Suction CPR Valve charging port Hot gas solenoid valve Cond. Pressure control valve TXV equalizer line Evaporator...
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Page 18: Installation
4. Scan the unit for any damage, if you can see damage document and take photos of the damage 5. Gather all needed equipment for installation listed or discussed with VAT representative 6. Verify that the van or trailer is designed or prepped for refrigeration / freezer applications. -
Page 19: Required Tools/Equipment
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Required Tools/Equipment • Tape measure • Torch • Utility knife • 134A recovery/recharge machine • Drill/Impact gun • Zap straps / Zip ties • Hole-saw kit • Silicone • Drill bit set •... -
Page 20: Pluto Mounting Dimensions
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Pluto mounting dimensions CONFIDENTIAL... -
Page 21: Pluto Condenser / Evaporator Dimensions
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Pluto condenser / evaporator dimensions CONFIDENTIAL... -
Page 22: Pluto Controller Dimensions
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Pluto controller dimensions CONFIDENTIAL... -
Page 23: Condenser Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Condenser Installation NOTICE It is recommended to make a card board trace of the unit and where mounting holes are to make the process quick, and easy NOTICE It is good practice, if possible, to connect the condenser, and evaporator with hoses properly on the ground to examine for leaks. - Page 24 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit • There is a white plastic hole cover in the installation kit, apply silicone or sealant underneath and around the cover and press to fit on the opening. • You can secure the cap in place using self-tapping screws until sealant cures.
- Page 25 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit CAUTION! Apply silicone or sealant around and in the holes up to the washers to prevent any water leaks through the roof • Insert bolts with big washers from the inside of the van or trailer •...
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Page 26: Evaporator Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Evaporator Installation NOTICE It is important to consider the hose length, drain-hole location and client’s application when mounting the evaporator. Make sure to leave space to run hoses and attach fittings •... -
Page 27: Refrigerant Hose Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Refrigerant Hose Installation CAUTION! 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. - Page 28 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Follow the schematic diagram for connecting the hoses. CAUTION! If the two high line hoses are attached to the wrong fitting the refrigeration system will not work and could be damaged (filter drier -> x-valve) the middle fitting at the evaporator is for the hot-gas defrost function •...
- Page 29 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit • Attach the two lines passed down to the evaporator (leave the middle high-line fitting at the evaporator for the hot-gas defrost line) • Attach the final hot-gas line and pass down to evaporator to attach. •...
- Page 30 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit • Using a wrench, tighten the hose to the fittings, each fitting as follows: o For 5/8 fitting tighten: 15 to 20 ft-lb o for 7/8 fitting tighten: 28 to 33 ft-lb Note: When tightening the fittings to the hose it is important to secure the other side or nut while turning to prevent cracking the line / bulkhead or...
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Page 31: Power Cables Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Power Cables Installation • Connect condenser fan and relay plugs. • Guide the power, controller, and evaporator fan/temperature sensor wires down the roof opening • Cut / drill holes to power wire to the main battery and controller wires to mounting position •... - Page 32 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit • Once the cables and harnesses have been attached at all connection points, use appropriate C-clamps / zap- strap to secure them to the walls to minimize vibration CAUTION! Ensure that the refrigerant hoses and wires are secured and tight to prevent any rubbing against sharp objects or moving parts.
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Page 33: Drain Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Drain Installation • Cut drain hose to desired size • Attach hoses to the two drain nipples on the evaporator • Merge the drains to a common point > 2” or T-connector •... -
Page 34: Controller Installation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Controller Installation • Wire should already be ran through the hole that was made while installing the refrigerant lines • Neatly run the controller plug to the desired mounting area ensuring the wire is not near any sharp, moving, or hot objects •... -
Page 35: Energy Pack Connection
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Energy Pack Connection NOTICE Avoid mounting in an enclosed small box or compartment. The controller may over heat without proper ventilation When attaching ensure tool does not touch pipes or any metal that is WARNING! grounded to the vehicle. -
Page 36: Testing For Leaks And Evacuation
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Testing for Leaks and Evacuation NOTICE The VAR series is a two part refrigeration system that requires the unit to be installed and then charged using R134a refrigerant. Leak Testing •... - Page 37 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit • If using the full length of supplied refrigerant hose you will require 2.8 lbs (Pluto unit) or 4.2 lbs (Pluto+ unit) of R134a refrigerant. For each complete foot of hose either added or subtracted from the supplied length the amount of refrigerant charge should be added or subtracted at a rate of 0.033lbs/ft (ie.
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Page 38: Testing And Starting The System
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Testing and Starting the System Ensure that the refrigerant hoses and wires are secured and tight to prevent any WARNING! rubbing against sharp objects or moving parts. Keep hoses and wires away from any extreme heat source (>200F°) such as the exhaust system •... -
Page 39: Pluto Reefer Installation Checking List (Icl)
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Pluto Reefer Installation Checking List (ICL) Item No. Title Description Check Before Running Condenser unit is attached to the roof with mounting rubbers securely and all Condenser mounting the bolts are sealed with proper sealant. Evaporator mounting Evaporator unit is attached to the roof securely. - Page 40 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Evaporator pan is connected properly to the drain pipe and water can drain Condensation drain pipe outside easily (there is enough slop on the drain pipe and it is not kinked. Start up Controller fault codes No fault code on the controller while running the reefer unit...
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Page 41: Maintenance
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Maintenance NOTICE Keep track of hourly usage and maintain the refrigeration unit every 1000 hours or 6 months. If you operate the refrigeration unit in a dusty environment, clean and check for blockage immediately after Never clean the refrigeration unit when connected to the battery or power supply WARNING! -
Page 42: Battery / Power
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit 4. Check if any plugs or connections are loose 5. Look at wiring see if any sign of excessive heat or dirt, clean if necessary 6. Check if temperature sensors have shifted during cleaning or operation, remount if necessary 7. -
Page 43: Electrical Schematic Wiring Diagram
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Electrical schematic wiring diagram CONFIDENTIAL... -
Page 44: Troubleshooting
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit 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 Volta Air Technology Van Refrigeration & Freezer Unit Pluto Refrigeration Troubleshooting Controller Fault Code Indication Fault Code Description Action Items OPE 1 Air temperature sensor is open circuit SHr 1 Air temperature sensor is short circuit OPE 2 Defrost (evaporator) temperature sensor is open circuit SHr 2 Defrost (evaporator) temperature sensor is short circuit...
- Page 46 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Defrost setting parameters are wrong Defrost not working Bad connections, defective relay / fuse / solenoid 36,37,28,26,27,17,22 Compressor does not start / defective compressor 15,23,43,24,17,22 Reefer is on, blowing warm air Compressor is working, not enough refrigerant 25,7 Compressor is working, not enough refrigerant flow...
- Page 47 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Check truck alternator voltage Check stand by charger voltage, AC breaker, and continuity to the unit Check connections on the terminal block and input voltage in condenser unit Check controller input power fuse (3 amp) Check controller connection to the wiring harness at controller plug Check evaporator fan(s) fuse (20 amp) Check that the evaporator fan(s) is not faulty and connections to the wiring harness are good at the plugs...
- Page 48 Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Avoid loading warm products into the reefer and give more time for the unit to cool down larger loads Check condenser pressure control switch (CPCS or fan cycling switch) and continuity to controller and relay CONFIDENTIAL...
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Page 49: Warranties And Contact Information
Owner’s Manual Volta Air Technology Van Refrigeration & Freezer Unit Warranties and Contact Information Volta Air Technology warranties the refrigeration units for 12 months from date of purchase. The warranty is a limited warranty and covers all parts shown to be defective Volta Air Technology 2150, 21000 Westminster HWY, Richmond, BC, V6V 2S9 Canada 1 778-772-3108,...
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