Table Of Contents INTRODUCTION About the Unit Ventilator ….……………………………………………………………………1 Nomenclature for Unit Ventilators with Self-Contained Cooling ….……………………1 TYPICAL UNIT LAYOUT Model VLC 24, VLC 30, VLC 36 .………………………………………………………………2 Model VLC 48, VLC 60 - (ducted) ….……………………………………………………………3 Model VLC 48, VLC 60 - (freeblow) .………………………………………………………4 Model VHC 30, VHC 36, VHC 48, VHC 60 .………………………………………………5...
INTRODUCTION ABOUT THE UNIT VENTILATOR The Temspec unit ventilator was designed as a means for providing heating, cooling and ventilation to the classroom. Our goal is to help create an enhanced learning environment by focusing on the following points when designing our equipment: •...
6. Humidistat & Hot Gas Reheat (Optional for VHC series units only) A room humidistat sensor is included in the return air stream. The humidistat has a set point of 55% R.H.
Hot Water Circuit The following are typical hot water piping schematics for a unit ventilator. Please refer to the unit ventilator shop drawings for a more specific layout. Hot Water With 2-way Control Valve Balancing Valve 2-way Control Valve Manual Air Vent Isolation Valve MIXED WATER...
Powered Exhaust (optional) Internal powered exhaust is an optional feature that is provided with the VHC series. This feature comes with a spring return damper actuator that is separate from the one used to control the outside air and return air dampers. However, the powered exhaust damper actuator is electrically linked to the outside air damper.
MAINTENANCE Servicing The Unit Maintenance to the unit is accomplished by removing the front access panels. Typically, the panels are secured by heavy duty Philips (star or cross shape) head screws. When removing the access panel, loosen but do not remove the screws. Carefully store the panel in a place where it will not get damaged.
On the VLC series units, simply slide out the old filters and replace them with the new ones. On the VHC series units, unclip the filters. Be sure to note the airflow direction that is marked on the filter(s).
Motors Temspec provides motors that are permanently lubricated. No maintenance is required. Caution: Temspec does not recommend the use of a unit ventilators during construction/drywall installation as a space heater or air conditioner. Motor exposure to drywall dust can reduce motor life and leads to premature failure.
TROUBLESHOOTING Basic Trouble Shooting Guidelines Problem Action Required ●Supply fan not running ●Verify that the disconnect is in the “on” position ●Verify that door micro-switch “kill switch” is completely depressed and operating correctly ●Verify that thermostat / controller is not in unoccupied mode (night set-back) ●Check manual reset controls (electric heat, high refrigerant pressure controls and low limit...
REPLACEMENT PARTS Limited Warranty TEMSPEC INCORPORATED warrants the equipment from factory defects in material or workmanship for a period of one year. For this warranty to be valid, the unit(s) must be installed and maintained in accordance with the manufacturer’s printed instructions.
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