Section 7, Plumbing the System
International Thermal Research
7-9
2 Remove the front cover of the Oasis
®
Chinook, and using a self
priming pump, and fill the Oasis
®
Chinook Heating System
through the filler port (1/2" hose barb connection) located at
the bottom of the unit with a 50/50 mixture of propylene glycol
and water.
3 When the fluid starts to run into the overflow bottle, turn on
the Bypass Switch on the Zone Control Board and wait until the
coolant lines are filled and the overflow bottle fills to the
"Minimum when cool" level.
4 When this level is reached, turn OFF the filler pump, and keep
the bypass switch turned ON until the system is purged of air
and the coolant level in the overflow bottle does not change.
5 Once the system has been purged of air, turn OFF the Bypass
Switch on the Zone Control Board. This Bypass Switch should
remain off during normal operation. It is only used to fill and
purge the system. The shut-off valve on the filler hose must be
in the closed position when the system has been filled.
Figure 7-6 Filling/Purging Oasis
®
Chinook Heating System
