HI-E DRY 195 Kurulum, Çalıştırma ve Servis Talimatları - Sayfa 8

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5.9 Humidity Control

The humidity control is an adjustable switch that closes

when the relative humidity of the air in which it is located

rises to the dial set point. It opens when the RH drops 4

to 6% below the set point.

5.10 Defrost Thermostat & Timer

The defrost thermostat is attached to the refrigerant

suction tube between the accumulator and compressor.

If the low side refrigerant temperature drops due to

excessive frost formation on the evaporator coil, the

thermostat opens. The compressor is then cycled off

and on by the defrost timer. The blower will continue to

run, causing air to flow through the evaporator coil and

melt the ice when the compressor is off. When the air

temperature and/or humidity increase, the evaporator

temperature will rise and the thermostat will close to end

the defrost cycle.

To improve performance in low temperatures, see Sec.

3.3 for defrost timer adjustment.

Toll-Free -800-

Figure 4: Electrical Schematic of HI-E Dry 195

Condensate is automatically pumped when the water

level in the pump's reservoir rises to close the float

switch.

If the pump is unable to empty its reservoir due to a

pump failure or blocked condensate hose, a pump safety

float switch is triggered before the reservoir overflows.

The switch turns off the compressor via its relay.

To replace the condensate pump:

. Unplug the unit & remove the front cover.

2. Disconnect the 2 hoses from the pump.

3. Cut the pump lead wires near the old pump.

4. Remove the 2 nuts from the unit side that hold the

pump to the side.

5. Attach the new pump with 2 nuts.

6. Connect the new pump wiring.

7. Connect the hoses to the new pump. Carefully

route the hoses so they do not contact the copper

refrigerant lines or the compressor shell.

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