York YD480 Series Installation Manual page 36

5012886-YIM-B-0517
Fan operates with proper rotation (All VFD equipped units with the optional Manual Bypass must be phased for correct blower
rotation with the Bypass switch set in the LINE position)
Pressure drop across dry evaporator coil (At maximum design CFM)
External Static Pressure
Return Static Pressure
Supply Static Pressure
Supply Air CFM Using Dry Coil Chart
Final Adjusted Supply Air CFM
1. Consult the proper airflow to pressure drop table to obtain the actual airflow at the measured pressure differential.
2. Was a motor pulley adjustment or change required to obtain the correct airflow?
Was it necessary to increase of decrease the airflow to meet the design conditions?
If the motor pulley size was changed, measure the outside diameters of the motor and blower pulleys and record those diameters here;
Blower Motor HP _______________________________FLA________ RPM________
Pulley Pitch Diameter ______________Turns Out________ Final Turns Out________
Blower Pulley Pitch Diameter ________________ Fixed Sheave_________________
T1 - T2 ____________________________ Volts
Control Voltage ______________________ Volts
Device
1,2
Supply Fan Motor
Condenser Fan #1
Condenser Fan #2 (if equipped)
Condenser Fan #3 (if equipped)
Condenser Fan #4 (if equipped)
Compressor #1
Compressor #2 (if equipped)
Compressor #3 (if equipped)
Compressor #4 (if equipped)
1. VAV units with heat section - simulate heat call to drive VAV boxes and VFD/IGV to maximum design airflow position.
2. VAV units without he a t s e ction - VAV boxe s mus t be s e t to ma ximum de s ign a irflow pos ition.
Notes above apply for 3rd party application only.
4
36
Operating Measurements - Air Flow
2
ELECTRICAL DATA
Nameplate
ID Fans
1
T2 - T3 ____________________________ Volts
T1 - T3 ____________________________ Volts
List All Three Amperages
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
1034350-UCL-D-0817
Exh. Fans Cond. Fans
Measured
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
AMPS
Unitary Products Group
Johnson Controls Unitary Products
IWC
IWC
IWC
IWC
CFM
CFM