Greenheck TSU Base Unit Manual (464441) User Manual

®Document 464441 Model TSUMake-Up Air UnitInstallation, Operation and Maintenance ManualPlease read and save these instructions for future reference.

Make-Up Air Unit10®Installation of Water Wizard™ (optional)Evaporative Cooling with the Water Wizard™1. Install Normally Closed Supply Line/SolenoidC

Make-Up Air Unit 11®Installation of Building Pressure Control (optional)1. Mount Pressure TapUsing the factory-provided bracket, mount the pressure t

Make-Up Air Unit12®Start-Up - BlowerRefer to the Start-Up Checklist in the Reference section before proceeding further!Pre Start-Up CheckRotate the fa

Make-Up Air Unit 13®1. Check the Supply Gas PressureCheck the supply gas pressure and compare it with the unit’s nameplate pressure requirements. Adj

Make-Up Air Unit14®6. Set the Maximum Firing RateMonitor the unit’s actual temperature rise by placing a thermocouple in the unit’s inlet and a secon

Make-Up Air Unit 15®IMPORTANTIf the flame signal is not above 1.25 VDC and steady, consult the Troubleshooting section.IMPORTANTThe proper minimum fir

Make-Up Air Unit16®1. Check the InstallationThe media may have been removed during installation, so its orientation should be double checked. The med

Make-Up Air Unit 17®NOTESteps 6 through 8 are provided to adjust the minimum cooling temperature. The minimum cooling is preset to the factory recomme

Make-Up Air Unit18®NOTEThe Freeze Temperature is preset to the factory recommended 45ºF. Steps 9-11 should only be completed if the Freeze Temperature

Make-Up Air Unit 19®WARNINGThe burner bypass damper is set-up at the factory. The weights should not be adjusted in the field. The damper may not full

Make-Up Air Unit2®The unit should be stored at least 3½ in. (89 mm) off the floor on wooden blocks covered with moisture proof paper or polyethylene sh

Make-Up Air Unit20®Check Operation - Recirculating Units (optional)NOTEBlower Start-Up, Steps 1-5 should be performed before the blower is run.Recircu

Make-Up Air Unit 21®Operation - ElectricalElectrical Sequence Exhaust Fan Contact (S1) Closed (optional)• Power passes to N.C. exhaust overload conta

Make-Up Air Unit22®Proper supply power at main disconnectCheck Main Voltage(See Blower Start-Up – Step 1)Main Disconnect (DS1) Off(Turn Main Disconne

Make-Up Air Unit 23®Motor OverampsTroubleshootingAir volume too high?Adjust drives or increase external static pressure as needed.(Reference Blower S

Make-Up Air Unit24®Insufficient AirflowTroubleshootingDamper(s) not fully opened?Adjust damper linkage(s), or replace faulty actuator(s).(Damper actuato

Make-Up Air Unit 25®Excessive Noise or VibrationTroubleshootingSheaves aligned?Align sheaves.(Reference V-Belt Drives in the Maintenance section)Wheel

Make-Up Air Unit26®Heater Does Not OperateDoes not attempt to light (No visible spark)Troubleshooting24 VAC between terminals W1 and X?Heat Switch (S

Make-Up Air Unit 27®TroubleshootingHeater Does Not OperateAttempts to light, but no pilot (visible spark)Gas pressure between the minimum and maximum

Make-Up Air Unit28®Heater Does Not OperateVisible pilotTroubleshootingFlame signal greater than 1.25 VDCMeasure the flame signal when there is a visibl

Make-Up Air Unit 29®Evaporative Cooler does not Operate (Recirculating pump)Supply fan must be on for cooler to operateTroubleshootingWater Blows thro

Make-Up Air Unit 3®Table of ContentsInstallationSlab Mounted Unit ... 3Rail Mounted Unit ... 4Curb Mounte

Make-Up Air Unit30®TroubleshootingWater Wizard™ — Improper Water Supply1. Adjust the Manual Supply ValveAdjust the manual supply valve (refer to Star

Make-Up Air Unit 31®IMPORTANTLubricate bearings prior to periods of extended shutdowns or storage and rotate shaft monthly to aid in corrosion prevent

Make-Up Air Unit32®Evaporative CoolersThe media should be periodically brushed lightly with a soft bristle brush in an up and down motion while flushin

Make-Up Air Unit 33®ReferenceBurner DifferentialPressure SensorHigh Gas PressureSwitch (optional)Low Gas PressureSwitch (optional)Manual PilotShut-Off

Make-Up Air Unit34®Typical Control Center LayoutReference13 232227 29282021417829351624171819151426101211625 1. Supply Motor Starter — 24 volt magne

Make-Up Air Unit 35®ReferenceUnit Model Number ________________________________ (e.g. TSU-230-H50)Unit Serial Number _________________________________

464441 • TSU, Rev. 2, February 2015 Copyright 2015 © Greenheck Fan Corporation36As a result of our commitment to continuous improvement, Greenheck re

Make-Up Air Unit4®Installation – Rail Mounted Unit1. Install RailsInstall the rails. The rails should be located 6 to 12 inches in from the sides of t

Make-Up Air Unit 5®Sealant1. Equipment Support(s) - consult factoryPosition equipment support(s) on the roof (reference the CAPS submittal for placeme

Make-Up Air Unit6®Installation of Electrical WiringIMPORTANTBefore connecting power to the unit, read and understand the following instructions and wi

Make-Up Air Unit 7®Installation of Direct Gas Piping1. Determine the Supply Gas RequirementsThe unit’s direct gas nameplate states the requirements f

Make-Up Air Unit8®Optional Vent LineWARNINGNEVER test for a gas leak with an open flame.NOTEThe factory piping has been checked for leaks, but should

Make-Up Air Unit 9®Auto Drain & Flush Valves (when provided by Manufacturer)Assm. NumberMfg. Part NumberASCO Part Num-berSolenoid TypeDe-Energized