Related Manuals for Temspec VGB Series
Summary of Contents for Temspec VGB Series
- Page 1 Operation & Maintenance Manual VGB & HGB Series Classroom Fan Coil Units IMPORTANT: Read and save this manual for future reference. This manual is to be left with the equipment owner Form VGB-OM-MANUAL-Rev02...
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Page 2: Table Of Contents
Table of Contents INTRODUCTION About the Classroom Fan Coil unit .………………………………………………………2 ………………………….……………………2 Nomenclature for Classroom Fan Coil units TYPICAL UNIT LAYOUT ……………………………………….………………………3 Model VGB 1600 DDX / DCW ……………………………………….………………………4 Model VGB 1600 BCW / BDX ……………………………………………………….………………………5 Model HGB 1600 OPERATION Control Strategy with Chilled Water Cooling, Electric or Hot Water Heating …………..……6 …………………..……7 Control Strategy with DX Cooling, Electric or Hot Water Heating... -
Page 3: About The Classroom Fan Coil Unit
ABOUT THE CLASSROOM FAN COIL UNIT The Temspec VGB/HGB classroom fan coil unit is designed as means for providing cooling, heating 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: •... -
Page 4: Typical Unit Layout
TYPICAL LAYOUT Model VGB 1600 DDX / DCW (Upflow, Ducted Configuration) S.A. S.A. 93" R.A. O.A. 23" 33" SIDE SECTION FRONT ELEVATION S.A. Supply Air R.A. Return Air O.A. Outdoor Air 8. Heavy duty return air grille. 1. Supply air fan. 9. -
Page 5: Model Vgb 1600 Bcw / Bdx
TYPICAL LAYOUT Model VGB 1600 BDX / BCW (Upflow, Freeblow Configuration) S.A. S.A. S.A. 93" R.A. O.A. 23" 33" SIDE SECTION FRONT ELEVATION S.A. Supply Air R.A. Return Air O.A. Outdoor Air 8. Return air grille. 1. Optional top plenum with double 9. -
Page 6: Model Hgb 1600
TYPICAL LAYOUT Model HGB 1600 (Horizontal, Ducted Configuration) 93" Duct By Duct By Others Others O.A. S.A. 23" R.A. SIDE SECTION Suspension Rods By Others 12" x 10" O.A. Supply Air Opening R.A. S.A. 33" ISOMETRIC VIEW (shown with left side access panel) S.A. -
Page 7: Operation
OPERATION Control Strategy For a Temspec VGB or HGB series classroom fan coil unit with type “V” stand alone control package (thermostat model OC-3) UNIT WITH CHILLED WATER COOLING, ELECTRIC OR HOT WATER HEATING Operations & Maint.Manual VGB HGB SeriesRev3.doc... -
Page 8: Control Strategy With Dx Cooling, Electric Or Hot Water Heating
Control Strategy For a Temspec VGB or HGB series classroom fan coil unit with type “V” stand alone control package (thermostat model OC-3) UNIT WITH DX COOLING, ELECTRIC OR HOT WATER HEATING Operations & Maint.Manual VGB HGB SeriesRev3.doc... -
Page 9: Chilled Water Circuit
TYPICAL PIPING PACKAGE FOR OUTDOOR AIR AND PRIMARY CHILLED WATER COILS The following is a typical piping schematic for a classroom fan coil unit. Please refer to the “shop drawings” for a more specific layout. 2 way Balancing Contol P.T. Vent Valve Valve... -
Page 10: Refrigeration Circuit
Field install a sight glass pressure on the liquid line leaving control the primary condensing unit. Outdoor Air Door Damper Evap Coil TEMSPEC HGB AIR HANDLER IN CLASSROOM APR CONTROLS ENCLOSURE (WITH CONDENSING UNIT) APR Control Twined Equalizer Line Sight Glass pressure... -
Page 11: Electrical Circuit
Electrical Circuit The electrical circuit in the unit ventilator is highly dependent on the controller and sequence that is being utilized. The unit can be supplied with a 115V, 208V, 277V or 460V power. Each unit comes standard with an unfused disconnect. A copy of the electrical schematic can be found folded in a pouch inside of the unit. -
Page 12: Maintenance
MAINTENANCE Servicing the Unit Access to the components is gained by removing the front access panels. Typically, the panels are fastened by heavy duty Phillips head screws. When removing the access panel (vertical style units), loosen but do not remove the screws. Carefully store the panel in a place where it will not get damaged. -
Page 13: Changing The Filters
Changing the Filters The outdoor and indoor conditions will determine the frequency of filter changes. Temspec recommends that the filters be changed every 3 months as a rule-of-thumb. Note that dirty filters will affect the overall performance of the unit. -
Page 14: Troubleshooting
TROUBLESHOOTING Basic Trouble Shooting Guidelines Problem Action Required ●Supply fan not running ●Verify that the disconnect is in the on position ●Verify that thermostat / controller is not in unoccupied mode (night set-back) ●Check the fan relay to see if it energizing and de- energizing properly ●Check to see if the 24V transformer is defective ●Ensure that wire connections are secured... -
Page 15: Replacement Parts
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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