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
2.9SERVICE FEATURES
The unit shall include a diagnostic light to indicate when service is required. System Service shall detect high or
3.0LOOP 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.
4.0VENTILATION OPTIONS (Select One)
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 | |
F1915 (2012 04) | Page 3 of 6 |
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