TYM T454HST, Operator'S Manual

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Blower control switch
Three position rocker switch
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Air conditioner switch
To operate the air conditioner the blower must be on the blower speed temperature control and all vents must be adjusted to
obtain the best cooling for the ambient temperature and dust conditions.
Under normal operating conditions, and the windows and doors closed, temperatures in the cab of 6ºC to 15 ºC (10 ºF to 25 ºF)
less than the ambient temperature will occur. When operating the air conditioner system, the moisture level is decreased.
NOTE:
1) During cold weather, with ambient temperature above 0 ºC (32 ºF) operate the air conditioner at least once per month for a
period of 10 to 15 minutes. This will lubricate the seals to prevent them becoming brittle and help prevent the loss of
refrigerant from the system.
2) The system is equipped with an environmentally safe refrigerant,R134a.Never recharge the air conditioning system with
refrigerant other than R134a as this will result in loss of cooling and permanent damage to all air conditioning components
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Temperature control
Set temperature control as required fully clockwise
For maximum cool and fully counterclockwise for heat.
Temperature control