Daikin Enfinity VFC Installation And Maintenance Manual page 40

Unit Check / Equipment Data
Job Name ___________________________________________________ Check Test Date: __________________________
City __________________________________________________________ State _______________ Zip ______________
Daikin Model # ______________________________________________________
Daikin Serial # _______________________________________ Job site Unit ID # (HP #) _ ____________________________
General Contractor: _____________________________________ Mechanical Contractor: _ ____________________________
Technician Performing Start-Up: Name _ _____________________________ Employer: _ ____________________________
Complete equipment data from measurements taken at the locatons indicated on the drawing below.
Flow Rate
1
EWP - PSI In _________________minus
The first step in finding GPM is to subtract leaving water pressure from entering water pressure. The difference between the two
is referred to as ∆P. ∆P can be converted to GPM by looking in the equipment specificaton catalog. Caution ∆P ≠ GPM
Note: A conversion table must be used to find GPM from (Delta) ∆P measurements.
Loop Fluid Temperature Rise / Drop through Coaxial Heat Exchanger EWT - LWT = ∆T
3
EWT - °F Out _________________ minus
∆T is the rise or drop in the fluid temperature as it passes through the Coaxial.
Air Temperature Rise / Drop through the air coil
EAT - °F In ___________________ minus
5
EWT - Entering Water Temperature
LWT - Leaving Water Temperature
Air Temperature °F
Form No. ____________________________
IM 930-6 • Enfinity Vertical Water Source Heat Pumps
Installation Data
Equipment Data
4
LWT - °F Out __________________ equals Fluid ∆T _______________
6
LAT - °F Out ___________________ equals Air ∆T _ ________________
Note: Perform Check, Test and Start-Up in the Cooling Mode Only.
EWP - Entering Water Pressure
LWP - Leaving Water Pressure
Check, Test & Start
A
OUT
IN
I
5 6
R
EAT C LAT
O
I
Expansion
Valve
L
Loop Fluid Pressure (In PSI)
Loop Fluid Temperature °F
2
LWP - PSI Out __________ equals ∆P ____________
EAT - Entering Air Temperature
LAT - Leaving Air Temperature
Reversing Valve
COAX
IN OUT
1 2
EWP LWP
3 4
EWT LWT
40
EWP - LWP = ∆P
∆T x CFM x 1.08 = BTUH Sensible
∆ - Delta (Differential)
CFM - Cubic Feet/Minute
BTUH - British Thermal Units/Hour
Discharge
Hot Gas
Suction
Compressor
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