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
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