Vinotemp WINE-MATE VINO6500SSH - Manual (Page 20)

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2) The air probe shall be located in the wine cellar 5 ft above the floor or the air
return area, but it shall not be located in the air supply area or other areas
where air is not circulated.
3) Air probe can be pulled out of the temperature controller around 5 ft; if
additional wires are needed, 18 gauge wires may be used to extend the air
probe.
4) If the air probe is installed in a return duct, the evaporator fans shall be
running all the time. Meanwhile due to the temperature differential the
temperature, air probe calibration should be used in order to maintain the
proper wine cellar temperature.
5. Checking Control Settings
1) Use of the adjustable pressure control (if applicable for pump-down)
Suction pressure setting: Cut out=5 psig; Cut in=25 psig; Differential=20 psig
Head pressure setting: Cut out=230 psig; Cut in=150 psig; Differential=80 psig
It may need to adjust the setting in the field to get the right cycle time.
A. P70 Single/Dual Control
B. PS2 Dual Control
Fig. 11 Adjustable Pressure Control