Greenheck PVe (472846) - Manual (Page 13)

13 Model PVe Heat Recovery Unit
Unit Start-Up Pre Start-Up
Every installation requires a comprehensive start-up
to ensure proper operation of the unit. As part of that
process, the following checklist must be completed and
information recorded. Starting up the unit in accordance
with this checklist will not only ensure proper operation,
but will also provide valuable information to personnel
performing future maintenance. Should an issue arise
which requires factory assistance, this completed
document will allow unit experts to provide quicker
resolve. Qualified personnel should perform start-up to
ensure safe and proper practices are followed.
Unit Model Number _______________________________
(e.g. PVe-20)
Unit Serial Number _______________________________
(e.g. 10111000)
Start-Up Date _______________________________
Start-Up Personnel Name __________________________
Start-Up Company _______________________________
Phone Number _______________________________
Pre Start-Up Checklist
† Disconnect and lock-out all power switches
† Remove any foreign objects that are located in the
energy recovery unit.
† Check all fasteners, set-screws, and locking collars
on the fans, bearings, drives, motor bases and
accessories for tightness.
† Rotate the fan wheels by hand and ensure no parts
are rubbing. If rubbing occurs, refer to Start-Up
section for more information.
† Check the fan belt drives for proper alignment
and tension (refer to Start-Up section for more
information).
† Filters can load up with dirt during building
construction. Replace any dirty pleated filters and
clean the aluminum mesh filters in the intake hood
(refer to Routine Maintenance section).
† Verify that non-motorized dampers open and close
properly.
† Check the tightness of all electrical wiring
connections.
† Verify control wire gauge.
DANGER
Electric shock hazard. Can cause injury or death.
Before attempting to perform any service or
maintenance, turn the electrical power to unit to OFF
at disconnect switch(es). Unit may have multiple
power supplies.
CAUTION
Use caution when removing access panels or other
unit components, especially while standing on a
ladder or other potentially unsteady base. Access
panels and unit components can be heavy and
serious injury may occur.
CAUTION
Do not operate energy recovery ventilator without
the filters and birdscreens installed. They prevent the
entry of foreign objects such as leaves, birds, etc.
CAUTION
Do not run unit during construction phase. Damage to
internal components may result and void warranty.
SPECIAL TOOLS REQUIRED
• Voltage Meter (with wire probes)
• Amperage Meter
• Thermometer
• Tachometer
• Incline manometer or equivalent
Start-Up Procedure
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 and amps, the control center door needs to be
open and the unit energized.
• Make sure Pre-Start-Up checklist is complete.
• Jumper R to G to enable unit.
Voltage Imbalance
In a three-phase system, excessive voltage imbalance
between phases will cause motors to overheat and
eventually fail. Maximum allowable imbalance is 2%.
To determine voltage imbalance, use recorded voltage
measurements in this formula.
Key: V1, V2, V3 = line voltages as measured
VA (average) = (V1 + V2 + V3) / 3
VD = Line voltage (V1, V2 or V3) that
deviates farthest from average (VA)
Formula: % Voltage Imbalance = [100 x (VA-VD)] /VA