International Thermal Research Ltd. - 7 -
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The burner switch on the Remote Operating Panel controls the ON/OFF of the diesel burner (primary heat source). When
the burner switch is turned ON, the diesel portion of the OASIS NE-S will turn ON after ten seconds. The Burner LED will
turn ON when the diesel burner has been activated. The burner will continue to operate until the heat transfer fluid
(coolant) in the heater reaches the set operating temperature range. At this point, the diesel burner will turn OFF. If the
coolant should cool down below this temperature range, the burner will again commence firing and will continue until either
the burner switch on the remote panel is turned OFF or the temperature range is again reached. If the burner switch on the
remote panel is turned OFF, the burner stops and the heater enters a four minute cool down stage prior to completely
shutting down.
Activating the AC Immersion Element(s) (Secondary Heat Source)
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Place the AC power switch on the Remote Operating Panel to either the one element or the two element position. The AC
Heat (green) LED will turn ON indicating the AC element(s) are energized and the coolant is being electrically heated. They
will continue to operate until the coolant in the heater reaches the set operating temperature range. At this point, the
elements will turn OFF. If the coolant should cool down below this temperature range, the AC elements will again be
energized and will continue to heat the coolant until either the AC switch on the remote panel is placed in the OFF position
or the temperature range is again reached. If the AC element switch on the remote panel is turned OFF, the AC elements
are de-energized and the AC Heat (green) LED turns OFF.
Activating the Burner and AC immersion Element(s) Jointly
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Turn the burner switch ON and place the AC power switch on the Remote Operating Panel to either the one element or the
two element position. The Burner and AC Heat (green) LED’s will turn ON indicating the diesel burner and AC element(s)
have been selected.
Activating the Fan Heaters through the Thermostats
(Burner or AC Heat or Engine Heat Source Available)
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Any thermostat connected to the Zone Control Board and calling for heat will cause the cabin fan controlled by that
thermostat to be enabled. The OASIS NE-S has a built-in aquastat that prevents the cabin fan from blowing cold air. Once
the room temperature has reached the temperature called for by the thermostat the cabin fan will turn off.
Activating the Domestic Hot Water
When a heat source has been selected (i.e. Burner, AC, Engine) and when heat is available the OASIS NE-S will respond to a call
for domestic hot water. The production of the domestic hot water is continuous with the Burner operation but is limited when
using AC or Engine.
The domestic water pump is not a part of, nor is it controlled by the OASIS NE-S.
Activating Engine Heat & Engine Pre-heat (If Option is installed)
Pre-heating the Engine
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Turn the engine preheat switch on the Remote Operating Panel to the ON position with the burner or AC switch on. The
engine preheat pump and coolant pump will be activated once the OASIS NE-S is at its set operating temperature range.
The engine will be warmed prior to starting once heated coolant continues to circulate through the engine heating loop.
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Note: An engine preheat pump does not come supplied with the OASIS NE-S. The circulation pump is optional and can be
ordered separately. 12 VDC power is available for the pump installation.
Engine Heat Used for Domestic Water or Space Heating
To use engine waste heat make sure the burner switch on the remote panel is in the ON position. The
OASIS NE-S will not make use of the engine waste heat if the burner switch on the remote panel is in the OFF
position.
NOTICE
NOTICE