Air Gap Faucet Installation - Vertex PureWaterMachine 3C Owners & Installation Manual

Figure 9
3/8 drain line from Airgap
to drainsaddle (Blue)
Drain line 1/4" from RO
to Airgap (Black)
2.10 Air-Gap Faucet Installation (Fig. 9)
Air-Gap Faucets are sometimes required by municipal code. The faucet is designed
to take the waste water from the membrane to the top of the sink and then let it flow by
gravity to the drain saddle. The objective is to prevent possible backup of drain water
from the sink to the membrane in the event of a sink clog. A drain saddle with 3/8" instead
of 1/4" is used. An extra section of 3/8" tubing (black) is used from the faucet to the drain.
Sink Preparation
Drill the appropriate size hole in the kitchen sink to accommodate the air-gap faucet.
Drain Connection
Follow instructions of section 2.5 except drill a 3/8" hole in the drain pipe.
Tubing Connections
Find the black colored 1/4" drain line from the membrane. Remove from mem-
brane housing. Connect this tube to the 1/4" barbed fitting on the air-gap faucet.
Find the 3/8" black tubing in the parts kit. Connect this tube to the 3/8" barbed
fitting on the air-gap faucet. Install the faucet assembly (with tubes attached)
into the sink hole. Secure the faucet per instructions in section 2.8. Re-attach the
1/4" black tubing to the drain side of the RO membrane housing. Be sure to
tighten the fitting nut securely. Attach the 3/8" tube to the drain connector.
Tighten the fitting nut securely. Attach the pure water line to the faucet per the
instructions in section 2.9-f.
Escutcheon Plate
Escutcheon Plate
Black Rubber Washer
Black Rubber Washer
Black Locating Washer
Black Locating Washer
3/8 drain line from Airgap
to drainsaddle (Blue)
Drain line 1/4" from RO
to Airgap (Black)
Push-in Fitting, 7/16" X 3/8" Tube.
Push-in Fitting, 7/16" X 3/8" Tube.
3/8" Tubing (White)
3/8" Tubing (White)
– 8 –
Small Rubber Washer
Small Rubber Washer
Counter Top
Counter Top
Lock Washer
Lock Washer
Nut
Nut