Servicing - DeWalt DXH170FAVT Instruction Manual

Servicing

A hazardous condition may result if a heater is used that has been modified or is not
functioning properly. When the heater is working properly:
• The flame is contained within the heater.
• The flame is essentially blue with perhaps some yellow tipping.
• There is no strong disagreeable odor, eye burning or other physical
discomfort.
• There is no smoke or soot internal or external to the heater.
• There are no unplanned or unexplained shut downs of the heater.
The parts lists and wiring diagram show the heater as it was constructed. Do not
use a heater which is different from that shown. In this regard, use only the hose,
regulator and cylinder connection fitting (called a POL fitting) supplied with the heater.
IMPORTANT Match the color stripe on the hangtag attached to the hose assembly
with the color on the label located near the propane inlet fitting on the heater. Do not
use alternates. For this heater, the regulator must be set as shown in "specifications" .
If there is any uncertainty about the regulator setting, have it checked.
A heater which is not working right must be repaired, but only by a trained,
experienced service person.
In-warranty products will be repaired with no charge for either parts or labor. Please
include a brief statement indicating date, place of purchase, the nature of the problem
and proof of purchase.
Out-of-warrranty products will be repaired with a charge for parts and labor.
Size and Capacity of Propane
Cylinders Required
The charts on the following page show the approximate size of the cylinder
required for these heaters. To use the chart:
1. Select the lowest air temperature expected (at the bottom of the chart).
2. Move straight up to time of operation desired (left side of chart).
3. Read the cylinder size required.
All heaters should have:
full cylinders
good air circulation
no frost on cylinders
3 cylinders
100# (45.4 kg)
2 cylinders
100# (45.4 kg)
1 cylinder
100# (45.4 kg)
HOW MUCH HEAT DO I REQUIRE?
For economy, it is important to match input to that required. But heat requirements
often vary. For example, it usually takes a lot more heat to get things warm than it
does to keep them that
way. Likewise, outside air
temperature usually
changes during the day
Cubic feet
so you may need more
of space to
heat at night than you
be heated
do in the daytime. An
5,000
approximation of the heat
required can be found
7,000
by using this chart.
10,000
15,000
100,000
20,000
30.000
50,000
7
BTU'S PER HOUR REQUIRED
Temperature Rise Required ( F)*
o
20 30 40
o o o
14,000 20,000 27,999
19,000 28,000 38,000
27,000 40,000 54,000
40,000 60,000 80,000
54,000 80,000 107,000
80,000 120,000 160,000
133,000 200,000 266,000
50
o
34,000
47,000
67,000
133,000
200,000
333,000