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Release fan holddown bolts and shipping brackets. (Pg 90, Fig. 18)
Check fan bearings and shaft(s) for tightness (Pg 205)
Fan bearings are lubricated from the factory. Remove zerk fitting to verify. Do not overgrease!
Turn fan by hand to ensure no rubbing with housing.
Have fan and motor pulleys been checked for proper alignment? (Pg 117)
Do the fan belts have proper tension? (Pg 118)
Are proper air filters in place? (Pg 221-262)
Are all wiring terminals to fan motors and heaters tight? (Pg 116)
Has water been placed in drain pan to confirm proper drainage?
Is duct connected directly to the unit? (Pg 95)
Verify wiring is correct for application (voltage, etc.) per component label.
Are field wiring penetrations into 39M properly sealed for air and water leaks (includes conduit inside box)?
PIPING
Have leak checks been made at chillers, boilers, valves, and indoor coils?
Has air been bled from system?
Is freeze protection provided (if required)? (Pg 136)
For DX system, has system been charged with refrigerant? (Pg 137)
Locate, repair, and report any leaks.
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III. START-UP
If this unit is to used for construction conditioning without ductwork, ensure balancing is redone and filters replaced once
construction is complete.
Verify wiring is correct for application (voltage, etc.) per component label.
If fan is direct drive, ensure that the VFD has been properly programmed for maximum frequency output
to limit fan speed to maximum (pg 148)
Ensure correct fan rotation.
After air and water balance is complete, are pulleys aligned?
If sheaves were changed during air balance, assembly must be rebalanced. Were the sheaves changed? (Pg 117)
Was a dynamic balance performed on the fan assembly?
After air and water balance and at least 10 minutes running time, record the following measurements:
Check indoor fan speed and record:
Ensure all water inside air handler is in condensate pan.
Ensure fixed pitch pulleys have been installed.
Check for vibration levels.
If electric heater is supplied, ensure heater airflow switch closes at design airflow (see page 163).
NOTES:
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SIGNATURE:
Fan RPM=
Entering air db temp
Unit entering air wb temp
Leaving air db temp
Leaving air wb temp
Entering water temp
Leaving water temp
CL-4
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