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F1915 (2012 04) Page 3 of 6
standard. One shall be used for fresh water applications, the other
for protected (antifreeze) closed systems. The factory wired switch is
for fresh water.
Phase rotation protection and phase failure protection shall be
standard factory installed features on all equipment with three-phase
power. If unit is wired incorrectly phase monitor will lock out
compressor operation and red warning light shall energize. Once
power wiring is corrected at field power wiring location, a green light
will energize on phase monitor. If a phase of power is lost, the phase
monitor will also lock out.
2.9 SERVICE FEATURES
The unit shall include a diagnostic light to indicate when service is
required. System Service shall detect high or low-pressure control
operation.
3.0 LOOP MODULE PUMPING SYSTEM
All models shall be designed with mounting and wiring provisions
for field installed pump module option, when unit is applied with
ground loop system.
4.0 VENTILATION OPTIONS (Select One)
Q-Tec models are designed to provide optional ventilation packages to
meet all of your ventilation and indoor air quality requirements. All
ventilation packages are factory installed.
4.1 BAROMETRIC FRESH AIR DAMPER STANDARD
The barometric fresh air damper is a standard feature on all models.
It allows outside ventilation air, up to 25% of the total airflow rating
of the unit, to be introduced through the air inlet openings and to be
mixed with the conditioned air. The damper opens during blower
operation and closes when the blower is off. Adjustable blade stops
allow different amounts of outside air to be introduced into the
building and can be easily locked closed if required.
4.2 BLANK OFF PLATE OPTIONAL
A blank off plate covers the air inlet openings, which restrict any
outside air from entering the unit. The blank off plate should be
utilized in applications where outside air is not required to be mixed
with the conditioned air.
4.3 COMMERCIAL ROOM VENTILATOR OPTIONAL