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Section 7, Plumbing the System
Ensure a four (4) quart minimum overflow bottle is attached to
the filler neck.
• The return and supply coolant plumbing connections are on the
top of the Oasis™ Heating Module and are 1/2” male NPT
fittings. The return coolant input to the Oasis™ Heating Module
is a connection labeled “Inlet” and the supply coolant output
from the Oasis™ Heating Module is a connection labeled “Outlet”.
Ensure proper direction of flow. Refer to Figure 7-1: Heating
Module for the location of the fittings.
• Two 1/2” NPT pipe to 3/4” hose barb fittings (not supplied) must
be fitted into the Oasis™ Heating Module connections and
tightened to a leak free condition using an appropriate thread
sealant.
• Hose and/or tubing used to connect to the Oasis™ Heating
Module or Distribution Module input and output connections must
be heavy duty heater hose, minimum 3/4” I.D, or 5/8” PEX.
All fittings on the Oasis™ Heating Module require two wrenches
when tightening. One wrench must be placed on the tank fitting
and held in place to prevent this fitting from being overstressed.
The other wrench can be used to tighten the matching half of the
fitting onto it. Failure to follow this procedure will damage the
Oasis™ Heating Module and the fittings.
NOTICE
Do not operate the Oasis™ Heating Module until a proper
water/anti-freeze solution has been added to the Oasis™ Heating
Module and the heating system and all trapped air has been bled.
An inadequate mixture may cause system circulation problems and
potential Oasis™ Heating Module damage and/or personal injury.
Use only a non-toxic, propylene glycol based coolant with additives
recognized as safe “GRAS” by the FDA. Refer to the anti-freeze
manufacturer recommendations for instructions for your application.
! DANGER
7-2 The Oasis™ Heating Module