Greenheck Fan HEAT RECOVERY UNIT WITH EVAPORATIVE COOLING HRE-20 - Manual (Page 30)

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Line Voltage - check at unit disconnect
L1-L2 ________ Volts L2-L3 ________ Volts L1-L3 _______ Volts
Motor Amp Draw:
Supply Motor Amps L1 ________ Amps L2 ________ Amps L3 ________ Amps
Exhaust Motor Amps L1 ________ Amps L2 ________ Amps L3 ________ Amps
Fan RPM: Supply Fan RPM _____________
Exhaust Fan RPM _____________
Correct fan rotation direction: Supply Fan Yes / No
Exhaust Fan Yes / No
Start-Up Checklist
The unit will be in operational mode during start-up . Use necessary precautions to avoid injury . All data must
be collected while the unit is running . In order to measure volts & amps, the control center door must be open,
and the unit energized using a crescent wrench to turn the disconnect handle .
Special Tools Required
Voltage Meter (with wire probes)
Amperage Meter
Incline manometer or equivalent
Tachometer
Thermometer
START-UP CHECKLIST FOR UNIT
START-UP CHECKLIST FOR EVAPORATIVE COOLER
Evaporative coolers are an integral part of the unit and must be set up properly . Doing so will ensure correct
operation and avoid water or leakage problems . HRE units will have one or two evaporative coolers . The
following checklist must be completed for each evaporative cooler . Qualified personnel should perform
installation and be present for start-up to ensure safe and proper practices are followed . Please refer to the
Evaporative Cooling Modules section for detailed information on start-up items below .
Indirect Evap Direct Evap
Connect overflow line (run bleed line into overflow) o o
Connect drain line o o
Install trap o o
Connect water supply line o o
For units with Auto Drain & Fill with Freeze Protection
Install, wire, and provide power to components o o
Confirm temperature and timer settings o o
Pump filter clean and installed properly o o
Saturate media per IOM o o
Adjust bleed-off rate per IOM o o
Check for water carryover o o
Connect ‘Call for Cooling’ signal o o
Remove jumper wire o o