Heating - TM-5-4120-347-140021

TM5-4120-347-14

The low pressure switch (2), the high pressure switch (14) and the pressure relief valve (13) are

provided to protect the unit from damage due to pressure extremes.

a. When the MODE SELECTOR is set for HIGH heat, all heating elements, located behind the evaporator

coil are energized. These elements are protected from overheating by a thermal cutout switch. Half of the

elements are thermostatically controlled by the TEMPERATURE SELECTOR, and remaining half are on all of

the time. When set for LOW, only the thermostatically controlled elements are energized.

b. The two speed fan can be set for either HIGH or LOW operation during heating

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