Thermo Products 36)- 80 User Manual

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All installations and services must be performed by qualified service personnel. 
 
For proper and safe operation of this appliance, ensure that adequate 
clearances around air openings into the burner compartment and the 
condenser coil area are maintained. These openings are not to be blocked, or 
restricted, in any manner. 
 
5.  Measures should be taken to prevent the entry of corrosive chemicals 
or vapors to the combustion and ventilation air supply. Such chemicals 
include, but are not limited to, chlorinated and/or fluorinated hydrocarbons. 
These substances are found in refrigerants, aerosol propellants, dry cleaning 
fluids, degreasers, and removers. Other harmful compounds may come from 
acids, salts, bleaches, air fresheners, cements, and glues.  Do not store or 
use these chemicals for long periods of time in close proximity to this 
appliance. 
 
Vapors from such products can form corrosive compounds when burned in a 
flame. These compounds promote rapid corrosion of the burner, combustion 
chamber, heat exchanger, and the vent terminal. Rapid or excessive 
corrosion will significantly reduce the useful life of the appliance. 
  
6. Refer to the following section, Venting of Combustion Products, for 
additional installation location restrictions. 
 
C. Venting of Combustion Products 
 
: This appliance is designed to directly vent combustion products 
into the atmosphere through, and using only, the supplied vent terminal. 
Do not attempt to attach a vent connector or a vent system to, or in place 
of, the supplied vent terminal.  
 
The appliance should be installed in a location such that heavy snow 
accumulation will not excessively restrict the flow of flue (combustion) products 
from the unit. The vent terminal should not be located in a position where ice 
buildup could block the discharge of flue products. If these conditions occur, the 
performance of the heating system will be adversely affected. 
 
Choose an installation location where the vent terminal does not discharge over 
sidewalks, walkways, and patios. These areas may become slippery when 
wetted by water vapor in the flue products. 
 
Combustion products must not be allowed to accumulate within a confined space 
and recirculate back into the combustion system. Recirculation of combustion 
products promotes poor combustion. In severe cases, it may lead to sooting of 
the combustion chamber and heat exchanger, or to nuisance shutdowns of the 
heating system.  
 
 
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