ELwell Air8 Service manual

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Air Conditioning Unit
Installation & Instruction Manual
Integrated Air Conditioning

Elwell Corporation is a family owned and operated
rm that has been active in the industry for over 20
years, specializing in Technical Sales and Services
for the Marine and RV industries.
Elwell Corp offers services such as:
Manufacturers Representatives
Service and Customer Support
Warehouse & Distribution
Visit our website for service and product info:
elwellcorp.com
About Elwell Corp.
The Air8 air conditioning system is designed with maximum
comfort and efciency in mind, providing outstanding perfor-
mance and a pleasant environment for the warmest of days.
Cold air is circulated evenly throughout the interior of your
living space thanks to a ducting system which minimizes hot
spots and provides an even temperature through out.
Additionally, the ducted air distribution minimizes noise while
delivering maximum cooling efciency. To maintain our pre-
mium standard in every aspect, the completed under-bunk
installation delivers a clean, hidden integration with no side
wall openings or penetrations.
By Elwell Corp
Specs
Input voltage: 110V
Product Weight: 45 lbs
Product Dimension: 12” x 16.5” x 23”
Contact Info
Tel: [phone] | Email: [email protected]

Table of Contents
1. GENERAL WARNING 1
1.1 Please read before using this manual 1
1.2 Safety instruction 1
2. SCOPE OF DELIVERY 1
3. TECHNICAL DATA 2
4. INSTALLATION DIMENSIONS 2
5. INSTALLATION INSTRUCTION 3
5.1 Installation location 3
5.2 How to install the AC unit 4
5.3 How to build the air duct 5
5.3.1 Cold air distribution 5
5.3.2 Circulated air return 5
5.4 How to install the wall pad 5
5.5 Power supply connection and wall pad
to control board connection 6
6. OPERATING INSTRUCTION 6
6.1 Wall Pad 7
6.2 Alarm Code 8

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1. GENERAL WARNING
1.1 Please read before using this manual
· This manual is part of the product and should be
kept near the unit for easy and quick reference.
· The instrument shall not be used for purposes
different from those described hereunder. It cannot
be used as a safety device.
· Check the application limits before proceeding.
1.2 Safety instructions
· Read operating instructions thoroughly. Failure to
comply can result in device failure, system damage
or personal injury.
· Check the supply voltage is correct before
connecting the unit.
· Do not expose to water or moisture: use the
controller only within the operating limits avoiding
sudden temperature changes with high
atmospheric humidity to prevent formation
of condensation
· WARNING! : Disconnect all electrical connections
before any kind of maintenance.
· The wall pad must not be opened.
· Drilling new openings and inserting screws may
damage either the refrigeration circuit or electrical
wiring causing possible equipment damage,
personal injury or death. Do not drill or cut any
openings into the unit.
· In case of failure or faulty operation send the unit
back to the distributor or to Bergstrom with a de-
tailed description of the fault.
· Ensure that the wires for wall pad, loads and the
power supply are separated and far enough from
each other, without crossing or intertwining.
· Ensure the unit operating properly, the air inlet/
outlet must not be obstructed by any obstacle.
· The openings under the oor of the vehicle must
be kept away from dirt and sludge. These openings
must not be within the range of the wheel spray –
t fender if necessary.
· In order to protect the compressor, Do not tilt
more than 5 degrees in the horizontal direction
when the unit is being operated while driving (e.g.
with generator or voltage converter).
· In order to avoid the condensation flowing
backward into vehicle, Do not operate the unit for
long time when the vehicle is at an angle.
2. SCOPE OF DELIVERY
Description Type PCN Qty Remark
Air Conditionging Unit 1
Wall Pad 1
IR Control 1 Optional
Cable (Wall Pad To Control Board) 116 feet length
Cable With Plug (Power Supply) 15 feet length
Duct 1
Optional
recommanded 50
feet length φ 2.5
inch
Side Fasten Bracket 2
Bracket 2
Housing Strap 1
Condensation Drain Connector 1
Floor Grille (Long) 1 Optional for air inlet
Floor Grille (Short) 1Optional for air
outlet
Installation Template 1

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3. TECHNICAL DATA
Nomenclature Air8 Energy Efficiency Rate
EER 2.3
Number of unit 1Air flow Max 220 CFM
Power supply 115VAC±10%/60Hz Refrigerant R410A / 18 oz
Norminal cooling
capacity * 6000 BTU Compressor oil / Precharge VG68 / 8.5 Cu In
Power consumption 900 W Dimensions L x W x H 22.8 x 16.5 x 12.2
Starting current 15 A (＜1S) Weight lbs ? (Only unit)
Operating current 9 A Max tilt of unit in
operation 5°
Protection class IP 54
* Tested under the following conditions: Cooling A.R.I. Standard Conditioning 80º F.DB/67º F.WB Indoor, 95º F.DB
Outdoor at 115VAC
4. INSTALLATION DIMENSIONS
Sensors information
A built-in air sensor to monitor the circulated air temperature
An Anti-freeze air sensor avoids evaporator coil from freezing during operation
A discharge temperature sensor protects compressor from excessive high discharge temperature
A discharge pressure switch prevents unit excessive high pressure

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5. INSTALLATION INSTRUCTION
5.1 INSTALLATION LOCATION
The unit must always be installed where it is easy to
access at all times for service work, and also easy to
remove and install.
This unit should be mounted and ducted as the g. 2.
Any mounting method selected must allow for unre-
stricted air ow to and from the condenser coil.
In case of restricted installation space being available,
the 2 connector cables (power supply and wall pad
cable) must be long enough for the unit to be taken out
with the cables attached and the cover to be opened.
In order to uniformly distributed vehicle cooling, the
AC system must be installed in a central location in a
stowage box or the like so that the cold air could evenly
distributed in the caravan or motor home.
The AC system is mounted to the oor, which must be
horizontal and barrier-free. The air inlet (AI), the air out-
let (AO) and condensation drain (WD) may need to be
tted with additional gaskets if the system is attached to
a oor with grooves, for instance.
The room air which has been cooled is drawn in again
from the vehicle interior by the unit via openings with a
total area not less than 50 sq.in
If possible, position the unit so that the frame of the
vehicle is between the air inlet (AI) and the
air outlet (AO).
Insert the installation template into the stowage box in
which the unit is being installed and check the amount
of space available for oor trepanning. The AC system
should have at least 0.8 inch of clearance at the sides
and 1.2 inch at the back from walls and furniture items
in order to prevent noise transmission during operation.
The minimum clearance at the front is 8 inch for
lter replacement.
The openings in the oor of the vehicle must be freely
accessible, and must not be blocked by any frames or
the like behind them! The openings must not be within
range of the wheel spray. A splash guard must be tted
if necessary.
The unit must be installed and serviced by an expert
who has the appropriate knowledge and skill

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5.2 HOW TO INSTALL THE UNIT
Put the installation template in stowage box and x in
right position.
Mark the mounting holes for the 2 brackets (2) and the 2
side fasten brackets (3)
Mark oor opening “AI” (13)for the condenser air inlet,
“AO”(12) for the condenser air outlet and “WD” (4)for
the condensation drains.
Remove template and cut out the marked
oor openings.
NOTE: Before drilling holes, please double check all
dimensions/openings are in right positions.
Meanwhile please check the underlying/concealed
gas pipes, water pipes, cables and so on.
Then seal the edges of the openings in the oor of the
vehicle with underbody protection.
Screw on the 2 side fasten brackets (3) with 2 screws
each and the 2 brackets (2 leg must be pointing towards
the outside!) with 3 screws each.
Insert connector (4) for condensation drain (WD)
from above.
Seal connector (4) for condensation drain all round from
below using body sealant.
NOTE: When installing the unit, please ensure that
the connector (4) of the condensation drain has been
located in the recess in the oor of the vehicle. If not
the water will permeate into the interior! In order to
provide perfect air circulation the apertures in the
base of the equipment and the oor must be exactly
aligned. If this is not the case the unit is not guaran-
teed to operate correctly!
Put housing strap (5) through the 2 fasten brackets (3)
Place air conditioning system in stowage compartment
between brackets (2) and fasten brackets (3).
Secure air conditioning system with housing strap (5).
Ensure that the housing strap is in the provided recesses
on the shell. Guide housing strap (5) through buckle (6)
as shown in Fig. 3 and tighten.
NOTE: The AC system must be clamped at all four
sides by the brackets in order to prevent uninten-
tional movement if vigorous movements occur (e.g.
CarTiresSqel).

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5.3 HOW TO BUILD AIR DUCT
(AIR DISTRIBUTION AND RETURN)
5.3.1 Cold Air Distribution
A cold air duct with a diameter of 2.5 inch and at least
one outlet must be connected to all three cold air
outlets of the unit (7, 8, 9).
Insert the cold air ducts into the cold air outlets of
the unit and route to the air outlet nozzles. Ensure that
the cold air ducts are securely seated in the cold
air outlets.
NOTES!
The cold air distribution is designed individually
using the modular principle for different vehicle
model; A wide range of accessories is available for
this purpose.
For the sake of achieving the best cooling power we
recommend:
– Route cold air ducts to air outlet nozzles as short and
straight as possible.
– The total length of cold air duct shouldn’t be longer
than 50 feet.
– Connect the longest cold air duct (max. 27 feet) to
the central cold air outlet (8), since it has the highest
air capacity
– In order to avoid condensation, do not route the cold
air ducts close by inowing outside air (or behind
the refrigerator).
5.3.2 Circulated Air Return
The circulated air is drawn in again by the unit, either
via an additional rectangular air grille or via several
small openings (e. g. in the stowage box wall) with a
total area of at least 50 sq.in
NOTE!
The ue from the vehicle interior to the AC unit instal-
lation area must be getting close to the equipment to
supply optimum air exchange. Covers must be tted
if necessary to prevent the circulated air return from
being affected by stowed objects.
5.4 HOW TO INSTAL THE WALL PAD
The wall pad (12) should preferably be mounted to
the wardrobe in such a way that the remote control
can be pointed at it without obstructions (length of
connecting cable Max 16 feet).
Take apart wall pad to cover frame (12) and back
frame (13). Drill Æ1.6 inch hole. Lead wall pad cable
(15) through hole towards the back and instal wall pad
with 2 screws (14 – not included in scope of delivery).
Then t cover frame (12) and route cable (15) to AC
control board.
Fig 4

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5.5 POWER SUPPLY AND WALL PAD
TO CONTROL BOARD CONNECTION
NOTE!: The 115 VAC electrical connection must always
be made by an expert who has the corresponding
license. The instructions shown here do not permit
amateurs to make the electrical connection, and only
serve as additional information for an expert who is
employed to do the work!
Make the connection to the unit via the 5 feet long cable
with plug (17) to a line that is protected with a 15 A fuse
in the vehicle. It is mandatory that connection is carried
out with care while observing the correct cable colors!
Open the unit cover and plug connector of wall pad
cable (16) into the control board. The cables must be
long enough for the unit to be pulled out of the false
oor with the cables attached. All cables must be
secured with clamps!
An insulating device for providing all-pole insulation
from the mains with contact clearance of at least 0.14
inch must be provided at the vehicle end for carrying
out maintenance and repair work.
6. OPERATING INSTRUCTION
Must be carefully read the operating instructions and
the “Safety Instructions” in preference to start unit!
The vehicle owner is responsible for correct operation
of the appliance.
Startup
Before switching on the unit, please be sure to check
that the camp site has proper power supply fusing
(115 V / Min. 10 A).
Note: The default power supply cable with plug is 5 feet length, In order to prevent the power cable of the
RV from overheating (minimum cross-section 3 x 2.08 mm²) and the cable drum must be fully unwound.

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6.1 WALL PAD
Wall pad setting
Switching on / off
Switch on the AC system by pressing the “Switch On
/ Off” button of the wall pad. The previous settings
are logged.
Mode
Select the required operating mode by pressing
the “MODE” (Cooling / Dry / Fan) button one or
more times.
Temperature
If needed, use the “Temperature Buttons” to set the
required room temperature with “ ” and “”.
Temperature setting range is 60°F to 85°F.
Remark: press “+”and “-” together for more than 5
seconds, converting temperature unit “°F” and “°C”
Fan
Select the required fan speed by pressing the
“Fan Speed” button one or more times.
Remark: fan speed setting will be disabled when the
operation mode is dry.
Clock and date
1. Press“ ” and “ ” button more than 3 seconds
into clock and date setting. “ ” will flash for
6 seconds.
2. Press “ ” button to adjust date setting from
Sunday to Saturday.
3. Press “ ” or “ ” button to adjust clock setting,
meanwhile “ ” is flashing
4. Press “ ” button for 3 seconds to confirm and
save the new setting, exit the clock and date
setting.
5. Press “ ” button for 3 seconds, without setting
changed, exit to default interface.
Timer
1. Press“ ” and “ ” button together for 6
seconds into timer setting（after buzzer rangs
twice and “ ” is flashing then loosen the
buttons, this procedure will pass the clock/date
setting).
2. If the timer is disable, the symbols zone will
display --:--
3. Press“ ” button to adjust date setting from Sun-
day to Saturday, meanwhile “ ”keeps ashing.
4. Press “ ” or “ ” button to adjust the clock,
meanwhile “ ” keeps ashing. If timer hasn’t
been settled earlier, the time display will start
from “00 :00”, otherwise it will start from previous
time setting.
5. Press “ ” or “ ” button to increase and
decrease the time setting, keep pressing buttons,
time will automatically changed and with three
speeds.
6. Press “ ” button for 3 seconds, select switch
on/off timer setting.
7. Press “ ” button for 3 seconds, disable the
intraday timer setting, time zone will display --:--.
8. Press “ ” button for 6 seconds, disable whole
week timer setting, week zone fully display, time
zone will display --:--.
9. Without any button pressing, system will
automatically exit to main interface after 10
seconds and save the setting.
Sleep mode
Press “ ” and “ ” button together for 3 second
into sleep mode setting.
Sleep mode on, “ ” symbol on；Sleep mode off,"
” symbol off.
Remark：sleep mode will be disable automatically in
fan only and dry mode.
Sleep mode will be switched off automatically after
8 hours operation.

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6.2 ALARM CODE
Alarm code Cause
E1 Return air sensor failure
E2 Coil sensor failure
E5 Compressor overload
E7 High pressure sensor trigger
E15 Wall pad and control board communication failure
E16 Coil frozen detected
E22 Discharge temperature sensor failure
E23 High discharge temperature
Ducted.  Quiet. Efcient.

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Elwell Corporation
Tel: [phone]
Email: [email protected]
680-C South 28th St.
Washougal, WA 98671