Pic-4

The main 3/8-inch manifold tubing is run along an existing wiring loom and secured with supplied nylon cable ties. The stiff polyethylene tubing is used to cover the manifold tubing to prevent chafing wherever a tie is used. Alternately, the manifold tubing can be secured by drilling 3/16-inch holes along the plumbing route and the mountable cable ties used. The polyurethane tubing has a temperature limit of 160 degrees Fahrenheit, so make sure to route it away from heat sources.
Top: Here is the control panel shown from the rear. From this angle, you can get a better view of the push-to-connect bulkhead adapter on the mini control valve, as well as the push-to-connect adapters on the two Schrader inflation valves. Either Schrader valve can be used to admit air into the system with a common gas station air hose, while the other one can be used to check system pressure with a tire pressure gauge. Once fitted with a male D-type fitting, the mini control valve (shown in the closed position) can be connected to a compressed air hose and opened to admit air into the system, inflating all tires at once. The same valve can be opened without a hose attached to release air from the system and deflate all tires at once. Having two different styles of inflation valves is a great feature, especially when you consider how difficult it can be to find a filling station where a hose can reach all tires. A central inflation point allows the user to “nudge” up to the air source and inflate all tires without having to stretch a hose or move the coach from side to side. Middle: A popular option is to fit the 2WayAir system with a brass pressure relief valve, which was pre-set for this application at 95 psi. Once that pressure is reached, the valve “burps” excess pressure until the inflation source (air compressor, air tank or on-board air) is turned off. Above: Here, the control panel has been mounted to the side of the hitch receiver. The main 3/8-inch manifold tubing exits the rear of the mini control valve, then goes to a 3/8-inch to 1/4 tee that is plumbed to the pressure relief valve (top of frame). The loop of tubing ties the two Schrader valves together, and tees into the main 3/8-inch manifold.

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