Drash D-1000B Manual

D-1000B HEATER
Outdoor Use Only
OPERATIONS & MAINTENANCE MANUAL
ISO 9001: 2000 Registered
Quality Management System
33 Kings Highway, Orangeburg, NY 10962 Phone: [phone]
Fax: [phone]
Hotline: [phone]
DHS Manual Part Number: 1006395 Web: www.drash.com
Revision Date: 01 APRIL 2010 Email: [email protected]

Revision History
Date Revision Description
03/31/10 1002811 Original Issue.
01 APR 10 1006395 Revised Manual Part Number. Revised Section 1, General, Section 4, Operations, Section 5, Maintenance, and Repair Procedures, and Section 8,
Illustrated Parts Breakdown (Rev B).
This manual contains privileged and confidential 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. Additional copies of this manual are available from DHS Systems, LLC.
Copyright © 2010, DHS SYSTEMS LLC.

TABLE OF CONTENTS
1. GENERAL...................................................................................................................................................1-1
1.1 Scope .................................................................................................................................................1-1
1.2 Receipt of the D-1000B Heater..........................................................................................................1-1
1.3 Equipment Description.......................................................................................................................1-1
1.4 Major Components.............................................................................................................................1-3
1.4.1 Shell...........................................................................................................................................1-3
1.4.2 Fuel Tank...................................................................................................................................1-3
1.4.3 Combustion Chamber................................................................................................................1-3
1.4.4 Burner Head ..............................................................................................................................1-3
1.4.5 Electric Motor.............................................................................................................................1-3
1.4.6 Control System..........................................................................................................................1-3
1.4.7 Performance..............................................................................................................................1-4
1.4.8 Auxiliary Equipment...................................................................................................................1-4
1.5 Specifications.....................................................................................................................................1-4
2. SAFETY......................................................................................................................................................2-1
2.1 Scope .................................................................................................................................................2-1
2.2 Qualified Personnel............................................................................................................................2-1
2.3 Signal Words and Labels ...................................................................................................................2-1
2.3.1 Danger.......................................................................................................................................2-1
2.3.2 Warning .....................................................................................................................................2-1
2.3.3 Caution ......................................................................................................................................2-1
2.3.4 Important....................................................................................................................................2-1
2.4 General Precautions...........................................................................................................................2-1
2.4.1 Heater........................................................................................................................................2-2
2.4.2 Safety Protections .....................................................................................................................2-2
3. STORAGE & TRANSPORT.......................................................................................................................3-1
3.1 Scope .................................................................................................................................................3-1
3.1.1 Transport and Storage...............................................................................................................3-1
3.2 Storage...............................................................................................................................................3-1
3.2.1 Before storing ............................................................................................................................3-1
3.2.2 After storing ...............................................................................................................................3-1
3.3 Shipping .............................................................................................................................................3-1
4. OPERATIONS ............................................................................................................................................4-1
4.1 General...............................................................................................................................................4-1
4.2 Control Panel......................................................................................................................................4-1
4.3 Start Up Procedure for Normal Operations........................................................................................4-1
4.4 Start Up Procedures for Cold Weather Operations............................................................................4-2
4.5 Shut Down Procedure........................................................................................................................4-3
4.6 Filling the Fuel Tank...........................................................................................................................4-3
5. MAINTENANCE, and REPAIR PROCEDURES........................................................................................5-1
5.1 General...............................................................................................................................................5-1
5.2 Maintenance.......................................................................................................................................5-1
5.2.1 Periodic Maintenance................................................................................................................5-1
5.2.2 Daily Maintenance.....................................................................................................................5-1
5.2.3 50 Hour Maintenance................................................................................................................5-1
5.2.4 Annual Maintenance..................................................................................................................5-2
5.3 Servicing the Fuel Tank .....................................................................................................................5-2
5.4 Repairs Procedures............................................................................................................................5-2
5.4.1 General Access .........................................................................................................................5-2
5.4.2 Removal and Installation Electric Motor Assembly ...................................................................5-3
5.4.3 Removal and Installation of the Condenser (Capacitor) ...........................................................5-6
5.4.4 Removal and Installation of Fuel Filter......................................................................................5-7
5.4.5 Removal and Installation of Fuel Pump Assembly....................................................................5-8
5.4.6 Removal, Inspection and Installation of Electric Motor / Fuel Pump Coupling..........................5-9
5.4.7 Removal and Installation of Fuel Solenoid..............................................................................5-11
5.4.8 Removal and Installation of Fuel Nozzle.................................................................................5-12

5.4.9 Removal, Installation and Gap Adjustment Procedures for Ignition Electrodes ..................... 5-14
5.4.10 Removal and Installation of the Ignition Control Assembly..................................................... 5-15
5.4.11 Removal and Installation of H.T. Ignition Cables.................................................................... 5-16
5.4.12 Removal and Installation of the Photocell............................................................................... 5-17
5.4.13 Removal and Installation of the Pressure Switch.................................................................... 5-18
6. TEST PROCEDURES................................................................................................................................ 6-1
6.1 Maintenance Repair Test Procedures ...............................................................................................6-1
6.2 Thermostat / CO Detector Control Device Test.................................................................................6-1
6.3 Smoke Test........................................................................................................................................6-1
6.4 Fuel Pressure Test.............................................................................................................................6-2
7. TROUBLESHOOTING............................................................................................................................... 7-1
7.1 General ..............................................................................................................................................7-1
7.2 D-1000B Heater.................................................................................................................................7-1
8. ILLUSTRATED PARTS BREAKDOWN....................................................................................................8-1
8.1 D-1000B Heater Exploded Detail.......................................................................................................8-1
8.2 Burner Head and Nozzle Assembly Exploded View..........................................................................8-2
8.3 Fuel Pump Assembly Exploded View................................................................................................8-3
8.4 Pre-Heated Fuel Filter Exploded View...............................................................................................8-4
8.5 Control Panel Assembly Exploded View............................................................................................8-5
8.6 Parts List for Exploded View of D-1000B Heater............................................................................... 8-6
8.7 Heater Sub-Assembly, Skid Body and Heater.................................................................................8-10
8.8 Skid Body Assembly, Heater D-1000B............................................................................................ 8-11
8.9 D-1000B Heater Accessories...........................................................................................................8-12
8.10 Wiring Schematic.............................................................................................................................8-13
9. WARRANTY............................................................................................................................................... 9-1
9.1 Equipment and/or Documentation Feedback Form........................................................................... 9-2

D-1000B Heater Operations & Maintenance
1. GENERAL
1.1 Scope
This Operator’s Manual describes the safe operation and field maintenance of the DRASH D-1000B heater.
1.2 Receipt of the D-1000B Heater
Once the heater has been uncrated, immediately write the model and serial number in the space provided below.
Model Number__________________ Serial Number_____________________
Inspect for signs of obvious or concealed freight damage. If damage exists, immediately file a claim with the
transportation company. Be sure that all damaged parts are replaced and that the mechanical and electrical problems
are corrected prior to operation of the unit. If you require service, contact DHS Logistics (Phone 800-GO-DRASH
(800-463-7274), Fax [phone], or Email [e-mail]). Please have the model and serial number available
for all service calls.
Manufacturer Data Plate
and DRASH Serial Number
Location
Figure 1-1 – Model & Serial Number Location
1.3 Equipment Description
THIS EQUIPMENT IS INTENDED FOR OUTDOOR USE ONLY
WARNING!
The D-1000B is rugged, lightweight, rust resistant, shock proof and easy to operate and maintain, providing nearly
100,000 BTUs/hr of dry, clean heat at a rate of 880 CFMs. The heater includes an electronic control system that monitors
for high-heat conditions and flameout, and operates on 120V, 60Hz. The D-1000B heater is a compact and mobile,
indirect fuel fired air heater which burns JP8 and Diesel fuel. The heater contains a stainless steel dual Combustion
Chamber, a Fuel Pump and an Electric Motor. A fan, which is mounted on the forward side of the motor, propels
additional air into the combustion chamber as well as around the outside of the chamber. The air which flows around the
chamber is heated through contact with the chamber exterior walls and is sent out of the heater. The air used in the
chamber for combustion is expelled through the exhaust stack. The D-1000B heater was designed for simple
maneuverability (wheel-able and equipped with snow slides) and is stackable for maximum storage efficiency.
GENERAL 1-1 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.

D-1000B Heater Operations & Maintenance
MaintenanceAccess Panel
Exhaust Stack
Heat Outlet
Pre-Heated
Fuel Filter
Manufacturer Data Plate
and DRASH Serial
Number Location
Accessory Bag
Compartment
Skid Body
Top Cover
Air Intake
Fuel Cap / Tank
Power Cord
Control Panel
Accessory Bag
Com
p
a
r
t
me
n
t
Figure 1-2 - D-1000B Heater
GENERAL 1-2 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.

D-1000B Heater Operations & Maintenance
ACCESSORY BAG
Figure 1-3 – Heater Duct Connection
1.4 Major Components
1.4.1 Shell
The D-1000B Heater features a two-piece, molded polymer composite outer body that is rust-resistant and shock proof.
The upper cover quickly detaches for service to the combustion chamber, electric motor, or fuel pump assembly by
removing four pins as shown in Figure 5-1.
1.4.2 Fuel Tank
The fuel tank is made of steel and is corrosion proof. The fuel tank has an internal fuel level indicator gauge cap and a
drain plug located underneath the fuel tank. The fuel tank capacity is 10.8 US Gallons (40.8 Liters) Use JP8 or Diesel fuel
when filling the fuel tank.
1.4.3 Combustion Chamber
The D-1000B has a dual combustion chamber made of stainless steel and is fully welded to provide clean warm air. The
heater is equipped with fifteen seconds pre-ventilation cycle to “clean” the combustion chamber. After switching the
heater off, a post ventilation time is electronically set by a control flame box to lower the combustion chamber
temperature. This free heat is blown into the area.
1.4.4 Burner Head
The burner head contains the fuel nozzle, dual electrodes, ignition cables and a flame detector.
1.4.5 Electric Motor
The electric motor drives the fuel pump assembly and a fan which propels additional air into the combustion chamber.
1.4.6 Control System
The D-1000B heater has an electronically control system located in a watertight panel mounted on the side of the unit.
The control panel consists of a 3-positioned switch for power, normal operation and thermostat operation, an outlet to
connect the remote thermostat / CO detector and a reset button. The control system utilizes a safety shut-off switch if
flame is not detected, a high temperature switch if ducts become blocked and a safety shut-off switch upon detecting
100ppm of Carbon Monoxide content.
GENERAL 1-3 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.

D-1000B Heater Operations & Maintenance
GENERAL 1-4 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.
1.4.7 Performance
With a watertight control panel, the D-1000B heater was designed to operate in all different types of environmental
conditions. A pre-heated fuel filter allows heater to work continuously in extreme low temperatures. When operating the
D-1000B heater, the noise level when measured at a distance of 3 feet (0.92 meters) from the control panel is 76dB. With
the remote thermostat / CO detector attached, the heater may be operated remotely from within the shelter. The D-1000B
has a fuel consumption rate of 0.81 US Gallon per hour (3.07 liters per hour), approximately 12 hrs of continuous run-time
without refueling.
1.4.8 Auxiliary Equipment
Each D-1000B heater will include the following auxiliary equipment:
An exhaust stack.
Two heater ducts (supply and return); 12” dia x 15’ L (0.3m dia x 4.5m length) with transport bags.
A remote control Thermostat / CO (Carbon Monoxide) Detector with a 26 foot (7.9m) power cord.
An Operational and Maintenance Manual.
1.5 Specifications
Color: Green
Overall Dimensions:
Length: 53.2 inches (1.4 meters).
Width: 23.8 inches (0.6 meters).
Height: 32.3 inches (0.8 meters) with exhaust stack installed 29.5 inches (0.7 meters without exhaust stack).
Flue Diameter: 5.9 inches (14.9cm).
Weights:
Dry: 165 lbs (75kg) (without accessories).
Wet: 242 lbs (109.7kg).
Heater Ducts: 27 lbs (12.2kg) each.
Input Power:
Power Supply: 120V, 60Hz (Variable Voltage: 220V, 50Hz; 110V, 50Hz).
Power Consumption: 520W.
Fuse: 10A.
Heat Input Capacity: 110,000 BTU/hr.
Air Flow: 880 CFM.
Nozzle: 0.55 GPH - 80°B.
Pump Pressure: 170 psi.
Operable Temperature:
Range: -40°F to 40°F (-40°C to 4.5°C).
Fuel System:
Tank Capacity: 10.8 US Gallon (40.8 liters).
Fuel Types: JP8 or Diesel.
Certification:
CSA B140.0-03 & B140.8-1967 Certified.
UL 733 Compliant.

D-1000B Heater Operations & Maintenance
2. SAFETY
2.1 Scope
This chapter contains general information for the safe operation and maintenance of the D-1000B heater.
The cautions and warnings point out known conditions that are
potentially hazardous. However, no manual can cover every
possible situation. If in doubt, contact DHS.
Fax: [phone]
Email: [email protected]
DHS Systems Contact Information
Phone: [phone]
Before calling DHS for assistance, please identify the heater
by its DRASH assigned serial number, (see Section 1.2
Receipt of your D-1000B Heater) or the serial number is
located on the Manufacturer decal (see Figure 1-1).
Service and repairs should be performed only by authorized
DHS technicians.
2.2 Qualified Personnel
For the purposes of this manual, a qualified person is one who is familiar with this manual, the operation of the specific
equipment and the hazards involved in operation and maintenance. This manual is not intended to be a substitute for
proper training. We strongly recommend that operators receive training directly from DHS.
IMPORTANT
READ ALL OF THE INFORMATION CONTAINED IN THIS MANUAL BEFORE
OPERATING THE HEATER.
2.3 Signal Words and Labels
Signal words and labels are used throughout this manual. The words and symbols convey the following advice:
2.3.1 Danger
Danger refers to immediate hazards that will result in severe personal injury or death.
2.3.2 Warning
Warning refers to a hazard or unsafe method or practice that may result in severe personal injury or death.
2.3.3 Caution
Caution refers to a hazard or unsafe method or practice that may result in equipment damage or personal injury.
2.3.4 Important
Important refers to a hazard or unsafe method or practice that can result in equipment damage.
2.4 General Precautions
PLEASE REMEMBER SAFETY FIRST. If you are not sure of the instructions or procedures, contact MilSys before
continuing.
This manual emphasizes the safety precautions necessary during the operation and maintenance of your heater. Each
section has caution and warning messages. These messages are for your safety and the safety of the equipment
involved. If any of the cautions or warnings is not readily understood, contact DHS using the contact information shown
above before proceeding.
When an abnormal condition is observed and procedures in the manual do not specifically cover the condition, work
should be stopped. Contact DHS for assistance. An authorized DHS technician will provide guidance on the abnormal
condition before any work can be continued.
SAFETY 2-1 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.

D-1000B Heater Operations & Maintenance
2.4.1 Heater
The following safety precautions should be observed:
The D-1000B heater must be used OUTDOORS ONLY.
Always follow local ordinances and codes when using this heater.
Always remove the fabric covers from each end of the heater before operating.
Operate the heater outdoors; upright with the exhaust stack attached and away from flammable or explosive
materials (the minimum distance must be 6.5 feet (2 meters).
Ensure fire extinguisher / equipment is readily available.
Unplug heater when not in use.
Before performing any maintenance or repair work, you must:
Turn the power switch to the off position.
Wait for the heater to cool down.
Unplug the heater from the power supply.
These safety precautions are necessary to prevent serious personal injury or death.
Keep the heater enclosure clean and cleared of any debris within the shell.
Ensure the stack and ducts are clear of any obstructions that would restrict airflow.
Do not operate heater without the top cover properly installed.
Do not operate the heater without the fan properly installed.
Ensure your body and clothing stay clear of all moving parts.
Immediately stop the heater and fix any fuel leaks.
Do not perform maintenance while the heater is operating.
CAUTION
Keep all solvents, cleaners or flammable liquids away. Adequate ventilation must be
available. Avoid breathing vapors. Avoid fire, explosion, and any other health
hazards. Always use protective equipment to prevent personal injuries to the head,
face, eyes, hands, and feet.
2.4.2 Safety Protections
The D-1000B heater has the following safety devices installed:
Flame Detector Safety Shut-off Switch: In case of the flame extinguishing, the safety shut-off switch will cut in
and stop the heater; at the same time the reset button will illuminate (See Figure 4-1, Item #1).
High Temperature Limit Switch: If the heater ducts become blocked (exceeding 250°F / 121°C), the high
temperature limit switch shuts down the heater.
CO Safety Shut-off Switch: This safety shut-off switch will shut down the heater upon detecting 100 PPM of
Carbon Monoxide.
Thermostatic Safety Switch (TSS): When the heater is switched off, the TSS assures that the fan continues to
run until the surface temperature of the combustion chamber drops, assuring a safe restart.
Fan Pressure Switch: When the fan stops working, this device disables ignition and cuts fuel supply.
SAFETY 2-2 DHS SYSTEMS LLC
No rights are conveyed except as indicated in the legend on the inside front cover of this document.