Unit Check / Equipment Data
Installation 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.
Equipment Data
Flow Rate
EWP - LWP = ∆P
EWP - PSI In _________________minus
LWP - PSI Out __________ equals ∆P ____________
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
EWT - °F Out _________________ minus
LWT - °F Out __________________ equals Fluid ∆T _______________
∆T is the rise or drop in the fluid temperature as it passes through the Coaxial.
Air Temperature
Rise / Drop through the air coil
∆T x CFM x 1.08 = BTUH Sensible
EAT - °F In ___________________ minus
LAT - °F Out ___________________ equals Air ∆T _________________
Note: Perform Check, Test and Start-Up in the Cooling Mode Only.
EWT - Entering Water Temperature EWP - Entering Water Pressure EAT - Entering Air Temperature
∆ - Delta (Differential)
LWT - Leaving Water Temperature LWP - Leaving Water Pressure
LAT - Leaving Air Temperature
CFM - Cubic Feet/Minute
BTUH - British Thermal Units/Hour
A
I
R
C
O
I
L
V
V
V
V
V
V
Discharge
Hot Gas
Suction
Compressor
Reversing Valve
V
COAX
IN OUT
LWP
LWT
Loop Fluid Pressure (In PSI) EWP
Loop Fluid Temperature °F EWT
EAT
Air Temperature °F
LAT
IN
OUT
Expansion
Valve
Check, Test & Start
1
3
2
4
5
6
1
2
3
4
5
6
Form No. ____________________________
www.DaikinApplied.com 33
IM 447-11
