Jayco Greyhawk User Manual

Chapter 4 The Systems. . . . . . . . . . . . . . . . . . . . . . ...............27
Plumbing System . . . . . . . . . . . . . . . . . . . . . . . . . . . ............27
Full Basement - Utility Center (Manifold) . . . . . . . . . . . . . . . ........27
Full Basement Models: . . . . . . . . . . . . . . . . . . . ..............29
Non-Basement Models . . . . . . . . . . . . . . . . . . . ..............30
12-Volt Demand Pump. . . . . . . . . . . . . . . . . ..................31
Faucets ...........................................31
Outside Shower (Option on some models) . . . . . . ..................32
Sanitizing and Filling the Potable Water System . . . . . . . . . . . . . ........32
Utility Center (Manifold) . . . . . . . . ........................33
Full Basement Models: . . . . . . . . . . . . . . . . . . . ..............34
Non-basement Models: . . . . . . . . . . . . . . . . . . . ..............35
Bath and Shower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........37
Draining ..........................................37
Non-Basement Models . . . . . . . . . . . . . . . . . . . ..............37
Full Basement Models . . . . . . . . . . . . . . . . . . . ..............37
Water Purification System (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Sanitation System . . . . . . . . . . . . . . . . . . . . . . . . . . . ............39
Toilets ...........................................39
Vents . . . . ........................................40
Holding Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . ............40
Using Toilet and Tank System . . . . . . . . . . . . . . . . . . . . .........40
Sewage Tank Preparation . . . . . . . . ........................40
Gray Water Holding Tank . . . . . . . . . . . . . . . . ...............41
Draining the Holding Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Using the Water System During Freezing Weather. . . . . . . . ..............42
Winterizing Your Motorhome . . . . . . . . ........................42
Full Basement Models . . . . . . . . . . . . . . . . . ..................43
Non-Utility Center . . . . . . . . . . . . . . . . . ..................43
Utility Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........44
Non-Basement Models. . . . . . . . . . . . . . . . . ..................45
The LP Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........46
LP Gas Tank ........................................46
Fuel Distribution Components . . . . . . . . . . . . . . . . ...............48
Checking for Leaks . . . . . . . . . . . . . . . . . . ..................49
LP Gas Consumption . . . . . . . . . . . . . . . . . ..................50
LP Detector ..........................................51
Operation..........................................51
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........51
Alarm ..........................................51
Procedures to Take During an Alarm. . . . . . . . ..................51
Alarm Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . ............52
Malfunction Alarm. . . . . . . . . . . . . . . . . . . . . . ...............52
Low Power Operation . . . . . . . . . . . . . . . . . ..................52
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . ............53
General ...........................................53
Changes, Modifications and Additions . . . . . . . . ..................53
120-Volt AC System . . . . . . . . . . . . . . . . . . ..................53
ii Type C Owner’s Manual

Jayco Greyhawk Specifications

General

Fuel Type	Gasoline
Manufacturer	Jayco
Model	Greyhawk
Chassis	Ford
Engine	Ford V10
Horsepower	305 hp
Length	31 ft
Category	Class C
GVWR	14, 500 lbs
Generator	Onan 4.0 kW
Grey Water Capacity	39 gallons
Black Water Capacity	39 gallons