Catalogue

UV-PRC004-EN 7
Features and Benefits
Drain Pan
The unit drain pan is positively sloped to assure proper drainage. The pan is insulated on the
bottom to help prevent condensate formation. The pan is simple to remove for cleaning purposes
by loosening two front screws.
Piping
Hydronic piping for the unit ventilator may be factory installed or field provided. It fits painlessly
inside the unit end pockets, permitting quick hook-up during the installing phase. The motorized
valves include a trouble-free, pop-top actuator allowing the maintenance or service technician
access to the motor without removing the valve body from the piping package.
Coils
Through the various coil combinations offered by Trane, room conditions can be met. Two-pipe
and four pipe combinations are available to support any application. Coil selections include
hydronic, steam, direct expansion (DX) and electric. For heating coils, Trane provides steam, hot
water and electric options. Cooling coils are available as cold water and DX. Access to the coil for
cleaning purposes is fundamentally one of the greatest features Trane provides as part of the
equipment. Maintaining a clean coil inherently increases the efficiency adds to the life of the
equipment, and helps to maintain proper indoor air quality.
Outside/Return-Air Damper Design
The outside/return air (OA/RA) damper is a dual blade system to ensure proper modulation and
mixing of the air to AHRI-840 economizing standards.
The optional outside air actuator is spring return. The spring return system closes the OA damper
if power is lost to the building and provides for a positive seal. This helps inhibit over cooling or
freeze-up of the system during electrical outages or system shut-down.
When ordered with factory mounted Trane
®
controls, the actuator is 3-point floating arrangement.
A 2–10 Vdc or 3-point floating actuator is available when Customer Supplied Terminal Interface
(CSTI) are specified.
Face and Bypass
The optional face and bypass design can provide active energy savings to the owner. This design
works best during seasonal changeover when outside air temperature are in their prime. It also
supports morning warm-up when lighter temperatures can easily be drawn into the system before
normal classroom operation begins.
The design allows the damper to bypass the cooing coil to supply cool, untreated OA into the room.
An optional 2-position isolation valve enhances this system by closing off water to the coil to
prevent the room temperature from rising to far above or below the intended setpoint.
UV-PRC004-EN.book Page 7 Monday, February 4, 2013 11:01 AM