VOLTA AIR IQ Series User manual

VOLTA AIR
TECHNOLOGY
(VAT)
OWNER’S MANUAL –IQ SERIES
You shall read and understand this manual, before you operate
or install the air conditioning unit
NIAC.12.70 –V3

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 .................................................................................................................................. 12
Controller operation ..................................................................................................................... 13
Temperature setting.............................................................................................................. 13
Cooling function..................................................................................................................... 13
Null mode .............................................................................................................................. 13
Defrost mode......................................................................................................................... 13
Battery charge ....................................................................................................................... 13
Unit conversion...................................................................................................................... 13
Turn off .................................................................................................................................. 13
Preparation for Installation........................................................................................................... 14
Required Tools and Materials ................................................................................................... 15
Components overall dimensions............................................................................................... 16
Battery box ............................................................................................................................ 16
Condenser unit ...................................................................................................................... 17
Evaporator unit...................................................................................................................... 18
Controller............................................................................................................................... 19
Battery Box Installation............................................................................................................. 20
Connecting Main Batteries to Auxiliary................................................................................. 24

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.................................................................................................................. 40
Testing and Starting the System ............................................................................................... 41
IQ Installation Checking List (ICL).................................................................................................. 42
Maintenance................................................................................................................................. 43
IQ Air Conditioning Troubleshooting ............................................................................................ 44
Electrical schematic wiring diagram ............................................................................................. 48
Warranties and Contact Information............................................................................................ 49

Owner’s Manual
Truck No-Idle AC Unit
4
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. Information from this manual should at no
time be regarded as covering all contingencies. 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. Any alteration of these products and deviation from suggested
installation process without written approval will void Volta Air Technology’s warranty
To ensure the durability of Volta Air Technology products, please follow and understand
the instructions within this manual
Recycle and dispose of the air conditioning unit properly to help keep the environment
healthy
Caution: Do not disassemble the unit yourself, only qualified and specially trained
personnel are allowed to dispose the unit
There are federal, provincial and state regulations regarding the disposal of refrigeration
machines. Consult a professional and ensure they follow the laws when disposing of the
refrigeration unit

Owner’s Manual
Truck No-Idle AC Unit
5
Technical Specifications
Model
12440-IQ
Voltage
12V
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
62A
Max Current
90A
Evaporator Airflow
260 CFM
Condenser dimensions
762 x 711 x 482mm (30 x 28 x 19in)
Condenser weight
20 kg (44 lbs)
Evaporator dimension
457 x 279 x 203mm (18 x 11 x 8in)
Evaporator weight
7 kg (15 lbs)
Control panel
Digital

Owner’s Manual
Truck No-Idle AC Unit
6
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)
•Installation bolts, 4x5/16” mounting bolts nuts and washers, 7x cover bolts, and insulation
tape
•Condenser/compressor box unit with mounting hardware and wiring harnesses
•Bulkhead for refrigeration hose and electrical
•3x 7/8” 90° Hose Fitting-Hose #12 + 1 with service port
•3x 5/8” 90° Hose Fitting-Hose #6 + 1 with service port
•EZ clip couplings / clamps
Optional Parts:
•In frame battery box (see Battery Box sections)
obattery brackets and mounting hardware
•Battery separator / low voltage disconnect
•Deep cycle batteries
•Main cables (2 AWG) from main to auxiliary batteries and connecting cables
•Custom Evaporators (call for details)
•3x Fuse holder and fuses (2x 150A, 100A)

Owner’s Manual
Truck No-Idle AC Unit
7
IQ System Overview
Condenser
Controller
Battery Box
The controller communicates to the evaporator
and condenser units
Inputs: temperature sensors, pressure switch
Outputs: blower speed; high, medium, low,
compressor/condenser fan signal
Evaporator
Bulkhead

Owner’s Manual
Truck No-Idle AC Unit
8
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. A
battery box mounted outside on the truck frame is required to supply the power to AC unit
while working and get recharged from the truck alternator while engine is running.
Condenser unit
The condenser unit that is mounted outside on the cabin’s wall contains the condenser coil
& filter, condenser fan & PWM driver, compressor, Relay & fuse box, safety pressure switch,
and electrical terminal block.

Owner’s Manual
Truck No-Idle AC Unit
9
Evaporator unit
The evaporator unit includes the evaporator coil, air filter, blower & PWM driver, thermostatic
expansion valve (TXV), air & defrost temperature sensors.
Item
Description
Part ID
1
Condenser coil
ACC001
2
Condenser fan –DC 12V –12A
FAN005
3
Filter-drier
RDF002
4
Compressor –DC 12V –60A
CMP001
5
Safety pressure switch
BPS002
6
Electrical terminal block
TRB001
7
Fan PWM driver–DC 12V –15A
PWM001
8
Compressor relay
REL001
9
Controller fuse (5 amp)
FUS002
10
Condenser fan fuse (15 amp)
FUS004
11
Evaporator blower fuse (15 amp)
FUS004
12
Condenser base plate
PLT001
13
Compressor discharge line
FIT010
14
Compressor suction port –SAE 7/8
FIT013
15
Liquid line port –SAE 5/8
FIT012

Owner’s Manual
Truck No-Idle AC Unit
10
Battery box
Battery box assembly consists of 4 of 6V deep cycle batteries (recommended for better
performance), safety fuses, and LVD (Low Voltage Protection) & battery separator.
The LVD module protects the auxiliary batteries from low voltage discharging as well as
overcharging. It also separates the auxiliary batteries from the truck main battery, so main
batteries never get discharged by the AC unit and always get full charged before any current goes
to the auxiliary batteries.
Item
Description
Part ID
1
Evaporator coil
AEC001
2
Air filter
AFL001
3
Blower –DC 12V –10A
BLW001
4
Blower PWM driver - DC 12V –15A
PWM002
5
Thermostatic Expansion Valve (TXV)
TXV001
6
Air temperature sensor
TSE001
7
Defrost temperature sensor
TSE002
8
Evaporator box
PLT009
9
Evaporator suction port –SAE 7/8