CF_Rooftop_DOAS_3_17
Cooling
Parameter
Test C1
Test C2
Test C3
Test C4*
Circuit A
100%
100%
0%
0%
Circuit B
0%
0%
100%
25%
Hot Gas Reheat
0%
100%
0%
0%
Outdoor Air Temp. (
°
F)
Evaporator Coil Leaving Air
Temp. (
°
F)
Discharge Air Temp. (
°
F)
Subcooling (
°
F)
Expected = 10 to 15
°
F Expected = 2 to 10
°
F Expected = 10 to 15
°
F
N/A
Superheat (
°
F)
Expected = 10-20
°
F
Expected = 10-30
°
F
Expected = 10-20
°
F
N/A
Head Pressure (psi)
Expected = 250 to 500 psi
Suction Pressure (psi)
Expected = 96 to 155 psi
*Test C4 only applies to units with modulating compressors.
For charge adjustment guidelines, see the Refrigeration section of Troubleshooting.
Heating – IG Furnace
Nominal Heating Capacity (MBH):
_____________________
Gas Type:
_________________
F1 Capacity (MBH):
__________________
F2 Capacity (MBH):
______________________
Verify pilot spark.
Parameter
Low Fire 0%
High Fire 100%
Outdoor Air Temperature (
°
F)
Discharge Air Temperature (
°
F)
Natural Gas IDF Furnace Manifold Pressure [InWc]
Set to: Low Fire (0%) .355 InWc – High Fire (100%) 3.5 InWc
LP Gas IDF Furnace Manifold Pressure [InWc]
Set to: Low Fire (0%) 1.0 InWc – High Fire (100%) 10 InWc
Flue Stack Temperature (
°
F)
Heating – Electric
Nameplate Amps:
______________
Running Amps (L1/L2/L3):
______________________
Parameter
Observed Value
Outdoor Air Temperature (
°
F)
Low (25%)
Discharge Air Temp. (
°
F)
High (100%)
Discharge Air Temp.(
°
F)
Do not allow supply temperature to exceed 110°F. If supply temperature approaches 110°F during startup, turn off heater and record
110°F in the Discharge Air Temperature field.