Commissioning the System

Commissioning the System

• Use Service form 1A

• Proof of performance

• Speeds up Tech support

• Reduces recalls

CommissioningCommissioning

Balancing OrificesBalancing Orifices

• Works with all plenums

• 15, 35, 50%

• Easy to re-balance system

Airflow ChecksAirflow Checks

• U tube or Slope Gauge –

best way

• Delta T in cooling 25-28 deg.

• Electric Heat Delta T check

• Motor Amperage

Fan Curve ESP-4860D

Upper Static Limit

Lower Static Limit

1.000

1.100

1.200

1.300

1.400

1.500

1.600

1.700

1.800

1.900

2.000

2.100

2.200

2.300

500 600 700 800 900 1000 1100 1200 1300 1400 1500

Air Volume (CFM)

Ex

tern

al S

tati

c P

res

su

re (

in w

g)

Curve 1

Curve 2

Curve 3

Static Pressure Static Pressure Affects on Fan Affects on Fan PerformancePerformance

Electric Heat AirflowElectric Heat Airflow

• Convert KW to BTU (3413 X KW = BTU)

•DeRate for 208 (.8)

• Cfm’s x1.08 x’s Temp. Diff. = BTU

• Compare to unit data

Winterizing Cooling Winterizing Cooling Only UnitsOnly Units

• Winter supply shut-offs

• Seal the return

• Winterize condensate

• Shut off breaker