Unpacking; Assembly; Theory Of Operation - Desa TB100 Manuel Du Propriétaire

UNPACkINg

1. Remove all packing items applied to
heater for shipment. Keep plastic cover
cap (attached to heater inlet connector and
hose/regulator assembly) for storage.
. Remove all items from carton.
3. Check all items for shipping damage. If
heater is damaged, promptly inform dealer
where you bought heater.

ASSEMBLy

IMPORTANT: Do not use this product without
leg and foot assembly.
handle
Attach handle to control box with  screws
(long) as shown in Figure 3.
Plastic Foot and Leg Extensions
1. Insert leg extensions into outlet end cap
until small hole lines up with larger hole,
visible from inside of outlet end cap (see
Figure 3). Fasten leg extensions with
provided screws (short).
. Insert plastic foot ends into each leg ex-
tension and set heater to desired angle.
The Fuel System:
55/85/15 models, the propane gas moves through the automatic control valve, burn rate
adjustment valve and out the injector. For 170 models, the propane gas moves through the
solenoid valve, burn rate adjustment valve and out the injector.
The motor turns the fan. The fan pushes air into and around the combustion
The air System:
chamber. This air is heated and provides a stream of clean, hot air.
The ignition System:
ignitor. For 170 models direct spark ignitor sends voltage to the spark ignitor. The spark ignitor
ignites the fuel and air mixture.
The Safety Control System:
out. The motor will continue to run, but no heat is produced.
Thermal
Limit Switch
Clean
Heated
Air Out
(Front)
Combustion
Chamber
4

THEORy OF OPERATION

The hose/regulator assembly attaches to the propane gas supply. For
For 55/85/15 models the high voltage ignitor sends voltage to the spark
This system causes the heater to shut down if the flame goes
High Voltage Ignitor (55/85/15
Models) or DSI (170 Models)
Injector
Spark Ignitor
Air For
Combustion
Figure 4 - Cross Section Operational View
www.desatech.com
Small post screws on plastic foot will snap
into holes in leg extensions.
Cord Cleats
Install cord cleats on side of end caps as shown
in Figure 3 with screws provided (short).
Long screws
Outlet
Handle
End Cap
Small
Post
Figure 3 - Handle and Foot Assembly
Automatic Control Valve
(55/85/15 models only)
Motor
Fan
Air For
Heating
Leg Extension
Fastening
Screw (short)
Leg Extension
Plastic Foot
Solenoid Valve
(170 models only)
Hose/
Power
Regulator
Cord
Assembly
Cool
Air In
(Back)
119143-01B
Cord
Cleat
Short
Screw