Acela Truck DPMU20C User manual

DISASTER PORTABLE
MORGUE UNIT
(CONTAINERIZED)
OPERATOR MANUAL
& STORAGE INSTRUCTIONS
THIS MANUAL IS APPLICABLE FOR MODEL
DPMU20C ONLY
Acela Truck Company
540 Business Hub Drive
Belgrade, MT 59714 USA
www.acelatruck.com
[phone]
CAGE: 7WC08
Version 1.0, February 2020
Document Number 60

COPYRIGHT
This manual is protected under copyright, 2020 by Acela Truck Company and may not be duplicated, in
whole or in part, without the expressed written permission of Acela Truck Company. All rights reserved.
This manual is printed in the United States of America.
Acela Truck Company products are proudly made in the USA.
HIGH VOLTAGE! WARNING - Your Disaster Portable Morgue Unit utilizes high
voltage power to operate. THE POWER DISTRIBUTION BOX COVER SHOULD
BE CLOSED AND LATCHED AT ALL TIMES UNLESS REQUIRED TO CONTROL
REFRIGERATION UNIT, PERFORM MAINTENANCE OR TROUBLESHOOTING.
THE POWER DISTRIBUTION PANEL CONTAINS HIGH VOLTAGE. IMPROPER
USE CAN CAUSE ELECTRICUTION. ELECTRICAL MAINTENANCE SHOULD
ONLY BE PERFORMED BY A LICENSED ELECTRICIAN

Introduction
OVERVIEW OF OPERATION AND UNIT DESIGN
The DPMU is designed to maintain 35°F interior temperature at 120°F outside temperatures while
stationary. The unit is designed to run primarily on 240V 50A shore power. The DPMU is additionally
equipped with a back-up generator to provide emergency and short-term power supply.
A 240VAC 50A power service is required to operate the onboard refrigeration unit and battery charger.
All interior and exterior lighting is powered by the onboard 12VDC battery and is switched on/off by the
12VDC Master Power Switch located on the side of the power distribution box. Lights will operate for
short periods without shore power or generator power directly from battery. 240VAC power is
automatically switched from shore power to generator power by means of an onboard transfer switch.
240VAC power (from shore source or from generator) flows from the transfer switch into a circuit breaker
box. One (1) 240VAC circuit breaker is dedicated to the refrigeration unit circuit. One (1) 120VAC circuit
breaker is dedicated to power the onboard 12VDC power supply/smart battery charger circuit. The
onboard battery will automatically be charged whenever the unit has 240VAC power. A 12VDC circuit
panel distributes and protects all 12VDC circuits, including interior, rear and side lighting, master 12VDC
indicator light and Loss of Power Alarm. The master 12VDC lighting switch and indicator light are located
on the side of the power distribution box. The Loss of Power Alarm system is designed to indicate loss of
240VAC power to the refrigeration unit. A rooftop solar panel independently trickle charges the onboard
battery whenever the unit is exposed to sunlight – it is also fused inline next to the battery.
Unit maintenance is minimal and is detailed in manuals found herein and in the generator manual,
refrigeration unit manual, transfer switch manual and 12VDC smart battery charger manual found in the
document storage box located on the inside wall of the DPMU.
THIS MANUAL IS DESIGNED TO BE USED IN CONJUNCTION WITH THE
GENERATOR, REFRIGERATION UNIT, TRANSFER SWITCH AND 12VDC
SMART CHARGER MANUFACTURERS’ MANUALS, INSTRUCTIONS,
MAINTENANCE PROCEDURES, SAFETY WARNINGS, ETC. USERS SHOULD
BE THOROUGHLY FAMILIAR WITH ALL MANUALS AND GUIDES PRIOR TO
OPERATING THE DPMU. USERS ARE ENCOURAGED TO MAINTAIN
ACCURATE MAINTENANCE LOGS.

DPMU BASIC OPERATION
TRANSPORT AND ENTRY DOORS
The containerized DPMU is equipped with two (2) sets of doors; one (1) pair of transport doors that lock
and seal the DPMU during travel and one (1) refrigerated entry door that is specially designed to seal
the refrigerated compartment and maintain temperature. The containerized DPMU transport doors
should remain closed and latched at all times during transport and setup. Once the unit is in position for
use (level and supported), the transport doors should be opened fully and secured to the sides of the
container using the chains provided. FOR SAFETY REASONS IT IS HIGHLY RECOMMENDED THAT
THE DOORS BE SECURED TO THE CONTAINER-SIDE CHAIN LINK WITH A PADLOCK TO
PREVENT PEOPLE FROM BEING LOCKED/TRAPPED INSIDE THE CONTAINER. The refrigerated
door is equipped with a safety release on the inside and should remain closed at all times unless
required for immediate entry and exit.
ENTRY RAMP
A 1,500 lb. capacity entry ramp is stowed inside the container. After positioning the container and
securing the transport doors, unfold the ramp with the flat, punched surface facing up. Secure the
mounting tabs on the ramp into the mounting receivers on the DPMU rear wall, under the entry door.
The ramp is designed to be left in place while deployed. The ramp bridge, located at the entryway floor
should be used whenever entering or exiting the refrigerated door and will allow easy axxess for
wheeled carts.
SHORE POWER OPERATION (PRIMARY)
To start refrigeration unit, plug the male side of the provided shore power cable into a dedicated 240V 50A
circuit (building-side receptacle is provided) and plug the female end into the power inlet located on the
side of the power distribution box on the front exterior wall. A green “240VAC POWER ON” lamp on the
distribution box door will illuminate. Power will flow to refrigeration unit immediately after plugging in.
Start the refrigeration unit by turning the controller (located inside weatherproof box on side of power
distribution box) ON and setting temperature to 35°F. Be sure to close and latch the controller box cover.
Ensure that the rear entry (refrigerated) door is closed and latched at all times unless absolutely required
in order to maintain interior temperature.
-OR-
GENERATOR POWER OPERATION (EMERGENCY BACK-UP OR TEMPORARY USE)
Follow the generator starting instructions on the top or the side (model dependent) of the generator.
Ensure generator has fuel, fuel shut-off switch is in the ON position, main circuit breaker is in the ON
position.
NOTE: As a safety feature, the transfer switch will not transfer generator power for 20 to 45 seconds after
startup. The green “240VAC POWER ON” lamp on the distribution box door will illuminate when power
is transferred.
Start the refrigeration unit by turning the controller (located inside weatherproof box on side of power
distribution box) ON and setting temperature to 35°F. Be sure to close and latch the controller box cover.
Ensure that the rear entry (refrigeration) door is closed and latched at all times unless absolutely required
in order to maintain interior temperature.
*NOTE: generator is designed to be used for short periods as back-up/emergency power. Optional larger
fuel tank is available for longer run times

LIGHTING
The DPMU is equipped with internal and external 12VDC LED lighting. All lights are operated from a
single switch panel located on the interior left wall. The switch panel is activated by turning the Master
12VDC Power Switch (located on the side of the power distribution box) to ON. All switches are backlit
and are operated by depressing the switch desired. Lighting circuits include:
Interior, Left Exterior, Right Exterior, Rear Exterior
ALARM
The DPMU is equipped with an AC Power Loss Alarm
The alarm will sound a loud beeping alarm and flash a red strobe light (on top of power distribution box
when the unit has 240VAC power (either from shore power source or from the onboard generator), and
no 240VAC power is sensed on the load side of the circuit breaker to the refrigeration unit. Please see
Troubleshooting Section for possible causes and solutions
SYSTEM TECHNICAL DESCRIPTIONS
SOLAR PANEL BATTERY CHARGER
The DPMU is equipped with a rooftop solar panel battery charger. The solar panel battery charger will
automatically trickle charge the batteries whenever the panel is exposed to sunlight.
The solar panel is equipped with an inline fuse located inside the generator engine compartment
immediately next to battery.
NOTE: Solar panel efficiency is decreased exponentially when the panel is dirty or is partially shaded (i.e.
by fallen leaves or overhanging tree branches, etc.). For proper charging and battery maintenance, solar
panel MUST have a full, unobstructed view of the sky, be free of shadows and debris and be cleaned
regularly.
SHORE POWER
The DPMU is designed to be primarily powered from a “shore” (building) 240V / 50A power source. To
power from a shore source, plug the male side of provided power cable into 240VAC 50A shore power
source (a building-side receptacle is provided in case it is needed). Plug the female end into the curb-
side receptacle located on the power distribution box. A green 240VAC POWER ON light will illuminate
indicating that you have power to the unit. If green indicator light does not illuminate, please see
Troubleshooting Section of this guide.

GENERATOR POWER
Ensure generator has fuel, fuel shut-off switch is in the ON position, main circuit breaker is in the ON
position.
Start generator according to instructions found in generator manual. NOTE: As a safety feature, the
transfer switch will not transfer generator power for 20 to 45 seconds after startup. The green “240VAC
POWER ON” lamp on the distribution box door will illuminate when power is transferred. *Note: generator
is designed to be used for short periods as back-up/emergency power. Optional larger fuel tank is
available for longer run times
GL11000 Generator run times are rated as follows:
 100% Load 7.0 Hours
 75% Load 8.5 Hours
 50% Load 10.4 Hours
 25% Load 12.7 Hours
*Fuel tank capacity is 7.3 Gallons
POWER DISTRIBUTION BOX
The power distribution box houses the following equipment:
 Shore Power Receptacle
 Hard Wire to Generator
 Exterior AC Power On Light (Green)
 AC Transfer Switch
 AC Breaker Box and Breakers
 DC Power Supply and Smart Battery Charger
 DC Power Distribution Center with Fuses and Relays
 AC Power Loss Alarm Relay, Beacon (Red) and Audible Alarm
 Wiring to/from Refrigeration Unit, Shore Power Receptacle, Lighting, Alarms, Battery
 120VAC Cooling fan
HIGH VOLTAGE! WARNING - Your Disaster Portable Morgue Unit utilizes high
voltage power to operate. THE POWER DISTRIBUTION BOX COVER SHOULD
BE CLOSED AND LATCHED AT ALL TIMES UNLESS REQUIRED TO CONTROL
REFRIGERATION UNIT, PERFORM MAINTENANCE OR TROUBLESHOOTING.
THE POWER DISTRIBUTION PANEL CONTAINS HIGH VOLTAGE. IMPROPER

USE CAN CAUSE ELECTRICUTION. ELECTRICAL MAINTENANCE SHOULD
ONLY BE PERFORMED BY A LICENSED ELECTRICIAN
REFRIGERATION UNIT
The onboard refrigeration unit is controlled by a controller located in a waterproof box mounted to the side
of the power distribution box. After 240VAC power is supplied to the DPMU, the refrigeration unit is turned
on/off and temperature can be set on the controller located inside the power distribution box. Temperature
should always be set to 35°F. Refrigeration unit should be turned off whenever it is not in use. Waterproof
controller enclosure should always be closed and latched.
HIGH VOLTAGE! WARNING - Your Disaster Portable Morgue Unit utilizes high
voltage power to operate. THE POWER DISTRIBUTION BOX COVER SHOULD
BE CLOSED AND LATCHED AT ALL TIMES UNLESS REQUIRED TO CONTROL
REFRIGERATION UNIT, PERFORM MAINTENANCE OR TROUBLESHOOTING.
THE POWER DISTRIBUTION PANEL CONTAINS HIGH VOLTAGE. IMPROPER
USE CAN CAUSE ELECTRICUTION. ELECTRICAL MAINTENANCE SHOULD
ONLY BE PERFORMED BY A LICENSED ELECTRICIAN
LIGHTING
The DPMU is equipped with internal and external 12VDC LED lighting. All lights are operated from a
single switch panel located on the interior left wall. The switch panel is activated by switching the Master
12VDC Power Switch (located on the side of the Power Distribution Box) to ON. All switches are backlit
and are operated by depressing the switch desired. Lighting circuits include:
 Interior
 Left Exterior
 Right Exterior
 Rear Exterior
TRANSPORT AND ENTRY DOORS
The containerized DPMU is equipped with two (2) sets of doors; one (1) pair of transport doors that lock
and seal the DPMU during travel and one (1) refrigerated entry door that is specially designed to seal
the refrigerated compartment and maintain temperature. The containerized DPMU transport doors
should remain closed and latched at all times during transport and setup. Once the unit is in position for
use (level and supported), the transport doors should be opened fully and secured to the sides of the
container using the chains provided. FOR SAFETY REASONS IT IS HIGHLY RECOMMENDED THAT
THE DOORS BE SECURED TO THE CONTAINER-SIDE CHAIN LINK WITH A PADLOCK TO
PREVENT PEOPLE FROM BEING LOCKED/TRAPPED INSIDE THE CONTAINER. The refrigerated
door is equipped with a safety release on the inside and should remain closed at all times unless
required for immediate entry and exit.

ENTRY RAMP
A 1,500 lb. capacity entry ramp is stowed inside the container. After positioning the container and
securing the transport doors, unfold the ramp with the flat, punched surface facing up. Secure the
mounting tabs on the ramp into the mounting receivers on the DPMU rear wall, under the entry door.
The ramp is designed to be left in place while deployed. The ramp bridge, located at the entryway floor
should be used whenever entering or exiting the refrigerated door and will allow easy axxess for
wheeled carts.
LOOSE INVENTORY
The DPMU is equipped from the factory with the following loose inventory:
 Cadaver Trays
 Tray Straps
 50-Foot 240VAC/50A Shore Power Cord
 50A Building-Side Receptacle
 Storage Crate
 Entry Ramp
 Spare Generator Key (Located In Document box on Interior Wall)
 Spare 60A Main Generator Fuse (Located In Document Box on Interior Wall)
 Generator Manual, Refrigeration Unit Manual, DPMU Operator Manual, Transfer Switch Manual,
Battery Charger Manual and Maintenance Logs (All located In Document box on Interior Wall)
Please contact Acela at [phone] for replacement inventory
PDF copies of all manuals can be found at www.acelatruck.com/support/downloads
MAINTENANCE
The DPMU is requires very little maintenance. Maintenance is limited to:
Maintain generator and refrigeration unit according to manufacturers’ instructions
Clean solar panel on a monthly basis (minimum) and keep it free from debris and shade (if stowed outside)
STOWING EQUIPMENT
The DPMU was designed to safely stow all equipment provided. Cadaver trays should be placed on the
racks and strapped to the racks securely. Multiple trays can be stacked on each rack if desired. Trays
should be placed so that weight is evenly distributed from side to side. Entry ramp should be strapped to
rack arms independent of any trays. Electrical cable, building-side receptacle should be stored in provided
red crate and securely strapped on top of one of the trays with the tray strap. Document box located on
inside wall should be checked for all manuals, guides, maintenance logs, spare generator key and spare
generator main fuse.
Replacement parts and optional accessories can be ordered by calling Acela at [phone].
PDF versions of all manuals can be downloaded from www.acelatruck.com/support/downloads

LONG TERM STORAGE
When storing the DPMU for long periods of time:
 Check all systems and interior/exterior lighting for proper performance
 Thoroughly clean, disinfect all interior surfaces, accessories, parts, etc. – use flooring cleaners
approved for vinyl flooring.
 Allow interior and all items to dry completely before sealing door
 Check that all inventory is present and properly stowed
 Close and lock refrigeration door and transport doors
 Check and perform all required generator and refrigeration unit maintenance
 Add appropriate amount of diesel fuel additive designed specifically for long-term storage to
generator fuel tank and run generator for 5 minutes (minimum)
 Make any repairs as necessary
NOTE: When storing outside, shore power is not required The battery will be maintained by means of a
rooftop solar panel battery charger
If storing without plugging into shore power, immediately after positioning, inspect and clean the rooftop
solar panel battery charger. Check and clean every 30 days (minimum). Keep free from debris and shade.
If storing while plugged into shore power, simply plug unit in and ensure AC circuit breakers are in the ON
(up) positions and the refrigeration unit is turned OFF.
Start and run generator and refrigeration unit for a minimum of 20 minutes every 30 days
NOTE: Long-term storage and maintenance services are available by calling Acela at (800) 940-
0508
TROUBLESHOOTING
DPMU is plugged in, and/or generator is running, power light is illuminated but no power is being
supplied to refrigeration unit – Check that 240VAC circuit breaker is in the ON position. Check again
that refrigeration unit has power by turning the refrigeration unit ON at the control head. Probe switched
side of AC circuit breaker – if no power then check transfer switch and circuit breaker.
DPMU is plugged in but power light is not illuminated – Check for AC power by probing inputs to the
transfer switch or checking that the cooling fan inside the power distribution box is running. If DPMU
has AC power, check for faulty light.
Generator is running but power light is not illuminated - Check for AC power by visually confirming that
the cooling/exhaust fan inside the power distribution box is running or by probing inputs to the transfer
switch. If AC power is detected, check for faulty light or broken wire. If no AC power is detected, check
generator main panel circuit breaker(s) are ON and if necessary, check the main fuse (behind the main
panel). Service generator if required.
AC Loss of Power Alarm is activated (red light is flashing and beeper [could be] sounding) (NOTE:
audible alarm can be turned off with yellow switch on side of power distribution box) – Indicates that
DPMU has power (from shore power source or generator) but no 240VAC is being provided to
refrigeration unit. Check 240VAC circuit breaker is in the ON (up) position. Check transfer switch for
proper operation. Replace circuit breaker if required.
No interior/exterior lights – Check that 12VDC Master Light Switch is in the ON (up) position and
indicator light is illuminated. Check that battery is charged.

HIGH VOLTAGE! WARNING - Your Disaster Portable Morgue Unit utilizes high
voltage power to operate. THE POWER DISTRIBUTION BOX COVER SHOULD
BE CLOSED AND LATCHED AT ALL TIMES UNLESS REQUIRED TO CONTROL
REFRIGERATION UNIT, PERFORM MAINTENANCE OR TROUBLESHOOTING.
THE POWER DISTRIBUTION PANEL CONTAINS HIGH VOLTAGE. IMPROPER
USE CAN CAUSE ELECTRICUTION. ELECTRICAL MAINTENANCE SHOULD
ONLY BE PERFORMED BY A LICENSED ELECTRICIAN
DIMENSIONS AND WEIGHT
DPMU-20C Dimensions: 20’ (6.1m)L x 8’ (2.4m)W x 8’-6” (2.6m)H
DMPU-20C Weight (Loaded/Wet, Approximate): 9,980 lbs. (4,527kg)
SUPPLIES, PARTS AND SERVICE
Replacement and maintenance parts and supplies are available by calling [phone]
All manuals, guides and logs can be downloaded from www.acelatruck.com/support/downloads
OPTIONAL EQUIPMENT
Other options or customization may be available.
Please contact Acela at [phone] for information about optional items.
NOTE: Long-term storage and maintenance services are available by calling Acela at (800) 940-
0508
WIRING DIAGRAM
Can be requested from Acela at [phone] or downloaded from
www.acelatruck.com/support/downloads