Hubbell Geyser-RO, Installation & Owner'S Manual, Page: 13 / 27

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Slide a measured and cut length of Armaflex insulation over each of the PEX lines. Make sure Armaflex
covers the hose and fittings to minimize heat loss.
Repeat the process of connecting and securing the PEX to each of the ¾” PEX barb fittings on the water
inlet and outlet of the
Geyser-RO . Connect as follows:
o
The PEX line on the brass “Tee” that is closest to the tank connects to the BOTTOM RIGHT
connection on the Geyser-RO (Geyser-RO Water Inlet).
o
The PEX line on the brass “Tee” that is furthest from the tank connects to the TOP LEFT
connection on the Geyser-RO (Geyser-RO Water Inlet).
Once the PEX tubing is connected to both the unit and the water tank, you may open the cold water
valve on the top of the tank to begin filling the tank. This will also allow you to check the connections
for leaks. Leave one hot water faucet open in the house while filling to allow air in the tank and lines to
escape. Once the water begins running through the open faucet, the system is full of water and you can
close it. If you have a leak, shut off the cold water valve, drain the tank, and fix the leak.
Remove the plastic bib located around the drain valve opening. With the head of a Phillips Screwdriver,
ream a hole in the insulation above the installed nipple that is approximately 2-3” deep. Push the
sensor bulb into the hole and secure it into place with the supplied hose clamp.
Do not over tighten the
hose clamp. Over tightening could break the sensor.
Note: Sensor bulb jacket should be in contact with brass nipple for most accurate measurement.