Greenheck Fan DGX Part #470655 Manuel d'utilisateur

Installation, Operation and Maintenance ManualPlease read and save these instructions for future reference. Read carefully before attempting to assemb

10DGX Industrial Space Heating2. Check the Blower RotationOpen the blower access door and run the blower momentarily to determine the rotation. Arrows

11DGX Industrial Space HeatingStart-Up Direct GasIMPORTANTFor proper unit function and safety, follow the start-up procedure in the exact order that i

12DGX Industrial Space Heating5. Set the Low Fire Time DelaySet the low fire time delay to 75% of its maximum setting. See below for location of the ti

13DGX Industrial Space HeatingStart-Up Direct Gas continuedIMPORTANTSetting the maximum firing rate during mild weather conditions may cause the high

14DGX Industrial Space Heating10. Program the 7 Day Time ClockFollow the detailed Programming and Operating Instructions for 7 Day Time Clock that shi

15DGX Industrial Space Heating • PowerpassesthroughN.O.contactonfanrelay(RF), which is energized and closed • Powerpassestoandenergize

16DGX Industrial Space HeatingOperation - Electrical Sequence With 7-Day Timer1. Switch (S2) in Summer Mode • PowerpassesthroughN.C.eld-supplie

17DGX Industrial Space HeatingProper supply power at main disconnectCheck Main Voltage(See Blower Start-Up – Step #1)Main Disconnect (DS1) Off(Turn M

18DGX Industrial Space HeatingMotor OverampsTroubleshootingAir volume too high?Adjust drives or increase external static pressure as needed.(Referenc

19DGX Industrial Space HeatingInsufficient AirflowTroubleshootingDamper(s) not fully opened?Adjust damper linkage(s), or replace faulty actuator(s).(Dam

2DGX Industrial Space HeatingThe unit should be stored at least 3½ in. (89 mm) off the floor on wooden blocks covered with moisture proof paper or poly

20DGX Industrial Space HeatingExcessive Noise or VibrationTroubleshootingSheaves aligned?Align sheaves.(Reference V-Belt Drives in the Maintenance sec

21DGX Industrial Space HeatingHeater Does Not OperateDoes not attempt to light (No visible spark)Troubleshooting24VACbetweenterminals W1 and X?Heat

22DGX Industrial Space HeatingHeater Does Not OperateAttempts to light, but no pilot (visible spark)TroubleshootingGas pressure between the minimum an

23DGX Industrial Space HeatingHeater Does Not OperateVisible pilotTroubleshootingFlame signal greaterthan1.25VDCMeasure the flame signalwhen there i

24DGX Industrial Space HeatingMaintenance - RoutineCAUTIONLock-out the gas and the electrical power to the unit before performing any maintenance or s

25DGX Industrial Space HeatingBearingsThe bearings for manufacturer fans are carefully selected to match the maximum load and operating conditions of

26DGX Industrial Space HeatingMaintenance - FallWARNINGDo not enlarge burner ports when clearing a blockage, performance could be affected.NOTEFlame r

27DGX Industrial Space HeatingReferenceTypical Gas Train Layout 400 – 800 MBHTypical Gas Train Layout > 800 MBHBurner DifferentialPressure SensorHi

28DGX Industrial Space HeatingTypical Control Center LayoutDirty Filter SwitchReference7 1514121341 6235 891011 1. Supply Motor Starter — 24 volt ma

29DGX Industrial Space HeatingStart-Up ChecklistUnit Model Number _______________________________ (e.g. DGX-120-GH100-1600)Unit Serial Number _______

3DGX Industrial Space HeatingTable of ContentsInstallationClearance to Combustibles/Service Clearances .. 3Indoor Unit ...

30DGX Industrial Space HeatingMaintenance LogDate ___________________Time _____________ AM/PMNotes: __________________________________________________

31DGX Industrial Space HeatingMaintenance LogDate ___________________Time _____________ AM/PMNotes: __________________________________________________

32470655 • DGX Industrial Space Heating, Rev. 3, August 2012 Copyright 2012 © Greenheck Fan CorporationGreenheckwarrantsthisequipmenttobefreef

4DGX Industrial Space HeatingInstallation of Indoor Unit3. Seal Wall OpeningApply sealant around the perimeter of the weatherhood to prevent water pen

5DGX Industrial Space HeatingInstallation of Arrangement DB / HZ1. Install Curb and/or Equipment Support(s)Position curb/equipment support(s) on the r

6DGX Industrial Space HeatingInstallation of Diffuser and Remote Panel (TSCP)NOTEThe location of the discharge diffuser and the TSCP Space Heat Remote

7DGX Industrial Space HeatingInstallation of Electrical WiringIMPORTANTBefore connecting power to the unit, read and understand the following instruct

8DGX Industrial Space HeatingInstallation of Gas PipingIMPORTANTAll gas piping must be installed in accordance with the latest edition of the National

9DGX Industrial Space HeatingOptional Vent LineWARNINGNEVER test for a gas leak with an open flame.NOTEThe factory piping has been checked for leaks,