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Uni-P H20 200C DEHUMIDIFIER
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Evacuate the dehumidifier and line set for a minimum of fifteen minutes then check if the
micron gauge reads below five hundred microns.
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Ensure that you close the high and low-pressure sides of the gage set and stop
the vacuum pump gradually.
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After this, install the valve core to the gas and liquid line stub service port.
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Finally, remove the vacuum pump from the middle port of the manifold gage and continue to
the next section of charging the system.
Charging the System
You, first of all, calculate the number of HFC-410A needed by finding out the length of the line
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set and simply performing the calculation shown below: 2.2oz + 11oz for every 10 feet of
the line set length = to the total charge required.
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Ensure that you connect the refrigerant HFC-410A cylinder to the middle port of the manifold set,
and position the cylinder of HF-C410A refrigerant to deliver strictly liquid.
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Next, open the HFC-410 cylinder valve.
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Fourth, place the cylinder of HFC-410A onto the refrigerant scale, and set the
scale back to zero.
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Open up the manifold gage set low-pressure side and weigh the quantity of HFC-410A
calculated above.
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Close up the valve on both the manifold gage set low-pressure side and the HFC-410A cylinder.
Close up the valve present on the gas and liquid line stub core removal tool.
•
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Next, remove the low and high-pressure manifold gage set sides from the valve removal tools.
Finally, install the valve core present in the liquid and gas line port by simply using the no-loss
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valve removal too
Next, open up the valve present on the removal tool of the gas and liquid line
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stab.
Open up the manifold gage set low-pressure side and weigh the quantity of
•
HFC-410A calculated above.
Close up the valve on both the manifold gage set low-pressure side and the
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HFC-410A cylinder.
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Close up the valve present on the gas and liquid line stub core removal tool.
•
Next, remove the low and high-pressure manifold gage set sides from the valve
removal tools.
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Finally, install the valve core present in the liquid and gas line port by simply
using the no-loss valve removal tool.
Tel: 888-990-7469
Installation, Operation & Service Instructions
8
Uni-P H20 200C DEHUMIDIFIER
The On-Board De-humidistat
Usually, the humidity control of the Uni-P H2O 200CC is an adjustable switch that usually
closes in any case where the relative humidity of the air of the room in which the device
is located increases to hit the RH set dial point. In normal cases, it is switched on when
the relative humidity drops from four percent to six percent below the set point.
The Average Relative Humidity Level per Setting
Humid – 80 percent to 90 percent relative humidity
Normal – 50 percent humidity (it is recommended)
Dry – 20 percent to 30 percent relative humidity
Typically, the dehumidifier runs until the RH (relative humidity) is decreased to the relative
humidity dial setting.
External Control
The dehumidifier is usually controlled by use of five different terminals. They include:
DMPR – It is meant for 24 volt AC power transformation neutral side. It is commonly read in color).
DEHU – It is the compressor and fan (dehumidification) control.
24V – It works for the transformer high side.
FAN – It serves as the fan control.
COM – It is meant for 24 volt AC power transformation neutral side. It is commonly white in color.
It is important to note that on-board de-humidistat should be set al through to humid.
Failure to do so may result in damage to the transformer.
Between the 24V leads and the COM/DMPR lead, a 40VA transformer is present. The
low voltage power source is meant to power the relay coils that in turn control the
compressors and fan. The 24VAC transformer may also be used to power the HVAC
accessories that are external to the dehumidifier.
If you want to turn the dehumidifier on, it is important to make contact between the 24V
and the DEHU terminals or make sure you turn the De-humidistat clockwise and towards
the drier. And, when you want to turn the fan on, create contact between the FAN
terminals and the 24V terminals. When you want to power the 24V HVAC accessory,
ensure that you connect the accessory to the 24V terminal and the COM terminal.
It is important to note that an 18 GA wire may be needed between the external control
and the Uni-P H2O 200CC dehumidifier.
9
Installation, Operation & Service Instructions
Tel: 888-990-7469
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