5T ECU, Cart Mount, Drake .

5T ECU, Cart Mount, Drake .
OPERATOR MANUAL
FOR
Cart Mount ECU
System Part Numbers:
1008080
33 Kings Highway, Orangeburg, NY 10962
TECH MANUAL PART NUMBER: 1006328
11 NOV 09
ISO 9001: 2000 Registered
Phone: 845-359-6066
Quality Management
System
Fax:
845-365-2114
Hotline:
800-977-3647
Web: www.drash.com
Email: drash@drash.com
This document contains information proprietary to DHS Technologies LLC and its subsidiaries and is intended solely for use by its customers. No
portion of this document may be reproduced for release to a third party without written consent of DHS Technologies LLC.
Operation Manual
Cart Mount ECU
Operation guide for the Cart Mount Environmental Control Unit
There are no user serviceable parts within the ECU and the user should not
attempt to service the ECU in anyway.
• Failure to use a grounded electrical outlet could result in an electrocution
injury.
• Disconnect unit from electrical outlet before performing any service or
maintenance.
• A qualified service facility or technician should only carry out any service
that the ECU requires.
• The ECU has very high operating pressures, moving parts and high
electrical voltages and current that can do bodily injury or can kill an un
trained person, all warning labels should be read and complied with.
Basic setup
Position the ECU in the required location to allow for the supplied ducting to be
connected to the shelter and the installation of the power supply and control
cabling. There should be adequate clearance on all sides of the ECU to allow
for adequate airflow around the ECU to aid in proper operation, a minimum of 2
feet on all sides should be maintained.
Lock the wheel brakes so the ECU will not roll away on a slight incline. The
ECU is best positioned on level even ground to allow for proper drainage of
condensation removed during the cooling cycle.
Wheel brakes are
located on the
swivel wheel
Part Number 1006328
1
DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be
reproduced for release to a third party without written consent of DHS Systems LLC.
Operation Manual
Cart Mount ECU
Install the ducting to and from the shelter and fasten with the integrated clamps.
Slide the ducting over the rings and using a screwdriver or nut driver tighten the
integral band clamps on the rings. The left duct is the outlet air from the ECU,
supply air to the shelter, and the right duct is the return air from the shelter. Attach
to your shelter using the shelter manufacturers’ instructions.
Controller cable
rain shield
Air return from
the shelter
Route the controller cable into the shelter, one end plugs into the top of the
controller and the other end plugs into the ECU. The ECU has a rain shield cover
over the control cable jack, lift the cover and align the plug so that it can be
inserted into the jack, you may hear a click when it locks in place. Lower the rain
shield over the cable.
Install the controller in an appropriate location inside the shelter. on a desk,
ledge etc. or hang it from an appropriate location. Plug the control cable into the
jack on the top of the controller box.
The controller should not be in a direct draft nor should it be located in an
area that does not receive a flow of conditioned air. Centrally located in an
open area is the best place for even heat and cooling.
Powering up the ECU
The power supply should be a 208 to 240 volt single phase supply. Do not run on
any other power sources. The supply power should be adequately grounded to
avoid electrical shocks or the possibility of electrocution.
Part Number 1006328
2
DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be
reproduced for release to a third party without written consent of DHS Systems LLC.
Operation Manual
Cart Mount ECU
5 Ton ECU’s require a minimum circuit capable of 50 amps and 2.5 ton ECU’s
require a minimum 30 amp circuit for starting purposes. The ECU will draw less
current when it is operating but needs the additional current for starting.
Before plugging in the power cabling, verify that the circuit breaker is in the off
position. Plug the power cable into either a line power source or appropriate
generator.
Turn on the circuit breaker.
The ECU’s fan will immediately start to circulate the air within the shelter, but no
heating or cooling will be enabled until the controller is turned on.
Controller setting
The controllers will self-test and then display the status of the temperature in the
shelter on the top line of the display. (All temperatures are in Fahrenheit)
Temperature
sensor
The second line of the display is the set point, this is the temperature that you set
for your requirements.
Press the Higher or Lower arrows once and the display will show setpoint and the
temperature that is currently set.
Part Number 1006328
3
DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be
reproduced for release to a third party without written consent of DHS Systems LLC.
Operation Manual
Cart Mount ECU
To change the temperature continue pressing or hold the up and down arrows
and set your new temperature.
When you are finished adjusting the temperature, and no changes are made for
2 seconds the new temperature setting will lock in and the display will revert to
the normal standard display.
Press and hold the on/off button for 2 seconds. An asterisk will show in the
display to signify that the controller is now ON. While the asterisk is displayed the
controller is actively operating the ECU compressor and/or optional electric
resistance heat.
Any adjustments of temperature setting can be done while the controller is
operating by just pressing the Higher or Lower button once and make your
required changes as outlines above.
The controller will start to control the shelter temperature by cycling the ECU
thru its heating and cooling modes to maintain the desired setting regardless of
whether it needs to heat or cool. The controller is designed to try and maintain
the temperature within 2 degrees of the set point chosen without having to
switch between heating or cooling modes.
Basic operation of the ECU
Initially there will be a (5) five-minute delay from the time power is supplied to the
ECU and the ECU will be able to start heating or cooling. This is not adjustable
and is a mandatory period required between cycles to insure that the internal
pressures can equalize before the ECU attempts to start.
There is a (5) five-minute delay built into the operating program to allow the unit
to equalize pressures before it does a restart. This is normal operation.
The ECU will cycle on and off to maintain the set temperature. During startup in
a warm humid condition it may require a significant amount of time for the ECU
to reach the desired temperature. The ECU will dehumidify the space first, then
lower the temperature.
The ECU during it’s heating mode at certain outside temperatures will develop
frost and ice on the outside coils. In order to maintain the optimum conditions for
heating the ECU will automatically go into a defrost mode. The defrost mode may
last as long as 15 minutes and during this time there will be a lack of heat
supplied to the shelter. This is normal operation and immediately upon completion
of the defrost cycle the unit will again go back to normal mode and start to supply
heat to the shelter. If the ECU has optional additional resistance heaters they will
continue to supply heat during a defrost cycle.
Part Number 1006328
4
DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be
reproduced for release to a third party without written consent of DHS Systems LLC.
Operation Manual
Cart Mount ECU
The fan setting is constantly ON to allow a better air mix of heating and
cooling to help avoid uneven cooling or heating of the shelter when the
compressor unit cycles off.
Shut down procedure.
Turn the controller to the off position. Press and hold the ON/OFF button unit the
asterisk disappears, or simply unplug it from the control cable.
If the ECU compressor was running it will stop. The ECU fan will continue to
circulate air until it is turned of at the power supply breaker. This is normal
operation.
Turn off the power supply breaker.
Remove the plug from the power source.
Remove the ducting and controller cable from the ECU.
Clean and store the ducting, controller and ECU unit.
Storage of the ECU is best in a clean dry location.
Part Number 1006328
5
DHS Systems LLC
This document contains information proprietary to DHS Systems LLC and is intended solely for use by its customers. No portion of this document may be
reproduced for release to a third party without written consent of DHS Systems LLC.
DHS SYSTEMS LLC LIMITED WARRANTY
DHS Systems LLC provides a limited warranty that all DRASH® (Deployable Rapid Assembly
Shelter) products shall be free from defects in materials and workmanship for the period of time shown
in the Warranty Schedule below. This warranty shall protect the original purchaser and shall inure to
the benefit of any additional end users of the product, but in no event shall the warranty extend for a
period of time in excess of that shown in the Warranty Schedule shown below.
WARRANTY SCHEDULE
DRASH Shelters and Shelter Accessories: 24 Months
DRASH Shelter Frames: 60 Months
DRASH UST Trailers and Trailer Accessories: 12 Months
DRASH Heaters and Heater Accessories: 12 Months
DRASH Power Distribution Unit (PDU): 12 Months
The warranty period reflected in the above Warranty Schedule shall begin on the date of original
shipment to the original purchaser.
The liability of DHS Systems LLC hereunder is limited to the labor and parts required to repair or
replace any defective part or other covered defect in material or workmanship.
Damage due to excessive wear and tear, improper use or carelessness is not covered under this
limited warranty. Any attempt to repair a defect by a party not authorized by DHS Systems LLC may
void this warranty.
This warranty is contingent upon a) proper operation of the products in accordance with the operating
instructions provided and b) proper maintenance and care of the equipment in accordance with the
operating instructions provided.
Warranty claims must contain a detailed explanation of the defect and be supported by summary
extracts of pertinent service and maintenance records, if applicable. DHS Systems LLC shall have the
right to examine the alleged defect and may require the claimant at the claimant’s expense, to return
the product for such an examination, if practicable. In the event the claim is validated, claimant shall
be reimbursed for the cost of shipping the product to DHS Systems LLC. If DHS Systems LLC
personnel are required to visit the claimant’s site to validate and claim and such claim is not validated,
all expenses for travel and accommodations will be charged to the claimant.
Any warranty claims must be filed with DHS Systems LLC within 90 days after the alleged defect has
first been identified. All claims must be mailed or faxed to the following:
DHS SYSTEMS LLC
33 Kings Highway
Orangeburg, NY 10962-1802
Attn: Customer Service, Logistics
Phone: 845-359-6066 Fax: 845-365-2114 email: drash@drash.com
This warranty is the sole warranty provided for the products listed herein. DHS Systems LLC
provides no other express or implied warranty with respect to these products (including but not
limited to no implied warranty of merchantability or fitness for a particular purpose).
DHS Warranty COMM
18 APR 08
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