Oasis Concepts Diesel and AC Heating System for Recreational Vehicles and Yachts - Manual (Page 46)

Section 7, Plumbing the System
• Use heavy-duty heater hose or PEX tubing. Slip-on foam
insulation coverings may be used over the hose fittings to reduce
heat loss. Secure all hose connections with spring clamps.
• Air vents for the fluid circulation system are not supplied, but
may be optionally installed to help bleed air from the system.
7.3 What NOT to Do
The Oasis™ Heating Module’s circulating water pump is one of the
most critical parts of the system. Never let the pump run dry or
you will damage the impeller. This is not covered under warranty.
NOTICE
Don’t use low-quality heater hose.
Don’t let the hose come into contact with solvents, which may
cause it to soften and swell. If there is any risk that solvents may
contact the hose, insert it into PVC plastic tubing for protection.
7.4 Installation Procedure
To install and connect the Oasis™ Heating Module and heater hose:
1 The supply and return coolant connections are on top of the
Oasis™ Heating Module and are 1/2” male NPT fittings. The
return coolant input to the Oasis™ Heating Module is labeled
“Inlet” and the supply coolant output from the Oasis™ Heating
Module is labeled “Outlet”. Ensure proper direction of flow.
2 Two male 1/2” NPT x 3/4” hose barbs (not supplied) must be
fitted into the supply and return fittings and tightened to a leak
free condition.
If the Distribution Module is to be used with the Oasis™
Heating Module, refer to Section 9, Installing the Distribution
Module.
7-4 The Oasis™ Heating Module