07-01810A 2012-10 Warranty 07-00424
5
Dri-Eaz Products, Inc.
4. Press the Power switch to the on position.
5. Press the Start switch to the on position.
The unit will begin operation.
CAUTION.
Monitor the settings on the Dragon and
conditions in the structure at least once a day during
operation.
Controlling the temperature
The Dragon is supplied with a remote thermostat that
can be used to control the temperature in the target
area. To use the Dragon in thermostat mode, first plug
the thermostat cord into the socket in the control panel
(Fig. 2). Then set the desired temperature on the
thermostat control for a maximum of 100°F (38°C) and
place the control in the target area.
To prevent overheating of the drying environment, we
recommend using the thermostat at all times.
Shutting the Dragon Off
First, switch the START button to the “Off” position. If the
unit is still warm, the fan will run for approximately 1½
minutes to cool down the unit. When the fan turns off,
turn the POWER to the “Off” position.
CAUTION:
Do not unplug the unit or otherwise turn off
the power until the fan stops operating. Failure to let the
unit complete the cooling cycle could damage the heat
exchanger and will not be covered under warranty.
Special Instructions
Adjusting for Altitude
The combustion air intake control for the furnace is
factory set for operation at sea level. To assure proper
operation and maximum performance at higher altitudes,
it may be necessary to adjust the combustion air/fuel
mixture.
The best guide to proper air/fuel mixture is exhaust
color. The Dragon exhaust should always be clear.
Black or white smoke indicates an improper air/fuel
mixture:
a) If the exhaust is
clear
, no adjustment is needed.
b) If the smoke is
dark
or
black
, there is not enough air
in the mixture.
c) If the smoke is
white
, there is too much air and not
enough fuel in the mixture, or there is water in the fuel.
If the smoke color is either black or white, follow
these steps to adjust the air/fuel ratio.
1. Open the access cover by removing the screws. Lift
cover and set aside. The hood is hinged on one side.
2. The AIR ADJUSTMENT COLLAR is located on the
burner assembly. The factory setting is 4. See Fig. 3.
3. Loosen the adjustment nut and slide the collar in the
appropriate direction:
a) A
lower
number
corrects for black smoke
(allows
more air into the combustion chamber);
b) A
higher
number
corrects for white smoke
(allows
less air into the combustion chamber).
4. Tighten the shutter adjustment screw, replace the
hood, secure hood with the sheet metal screws.
Restart the unit and check for proper operation.
WARNING: Replace access cover to test after each
adjustment. Do not operate the unit without the hood
securely in place as serious injury could result.
NOTE:
If the exhaust remains white even when adjusted
to the 10 mark, there is probably water in the fuel. You
may need to replace the fuel filter and/or clean the fuel
tank (p. 6).
Always adjust the Dragon so that it produces clear
exhaust.
Thermal overload protection
The remote thermostat provided with the Dragon is
factory set to limit the maximum room temperature to
100°F (38°C). We recommend that you always use the
thermostat, as this can help to prevent overheating of
and possible damage to the drying environment.
For additional safety, the Dragon is fitted with an internal
high temperature limit switch. If the heat exchanger
reaches 356°F (180°C), the limit switch will shut down
the Dragon and the OVERHEAT light will glow amber
(Fig. 2). In this case, the burner will automatically turn off
Fig. 3: To adjust for
altitude: Use air
adjust-ment collar.
Loosen bolt and slide
collar to adjust.
Factory setting is the
“4” mark.
