York AFFINITY YAFT026 Installation Manual page 71

Troubleshooting cont.
Single Speed/Dual Capacity Startup/Troubleshooting Form
1. Job Information
Model #
Serial #
2. Flow Rate in gpm
WATER IN Pressure:
WATER OUT Pressure:
Pressure Drop: a - b
Look up flow rate in table:
3. Temp. Rise/Drop Across Coaxial Heat Exchanger
WATER IN Temperature:
WATER OUT Temperature:
Temperature Difference:
4. Temp. Rise/Drop Across Air Coil
SUPPLY AIR Temperature:
RETURN AIR Temperature:
Temperature Difference:
5. Heat of Rejection (HR)/Heat of Extraction (HE)
Brine Factor :
2
HR/HE = d x g x k
STEPS 6-9 NEED ONLY BE COMPLETED IF A PROBLEM IS SUSPECTED.
6. Watts
Volts:
Total Amps (Comp. + Blower) :
3
Watts = m x n x 0.85:
7. Capacity
Cooling Capacity = l - (o x 3.413):
Heating Capacity = l + (o x 3.413):
8. Efficiency
Cooling EER = p / o:
Heating COP = p / (o x 3.413):
9. Superheat (S.H.)/Subcooling (S.C.)
Suction Pressure:
Suction Saturation Temperature:
Suction Line Temperature:
S.H. = t - s
Head Pressure:
High Pressure Saturation Temp:
Liquid Line Temperature :
4
S.C. = w - x
NOTES: Steps 3-9 should be conducted with the hot water generator disconnected.
1
Use 500 for pure water, 485 for methanol or Environol™. (This constant is derived by multiplying the weight of one gallon of water (8.34) times the minutes
2
in one hour (60) times the specific heat of the fluid. Water has a specific heat of 1.0.
If there is only one source of power for the compressor and blower, amp draw can be measured at the source wiring connection.
3
Liquid line is between the coax and the expansion device in the cooling mode; between the air coil and the expansion device in the heating mode.
4
AFFINITY & AFFINITY ADVANCED SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
Job Name:
Install Date:
SOURCE COAX
HEATING
a. psi a.
b. psi b.
c. psi c.
d. gpm d.
1
HEATING
e. °F e.
f. °F f.
g. °F g.
SOURCE COAX
HEATING
h. °F h.
i. °F i.
j. °F j.
k.
HEATING
l. Btu/h l.
ENERGY MONITOR
HEATING
m. Volts m.
n. Amps n.
o. Watts o.
HEATING
p. Btu/h p.
HEATING
q. Btu/h q.
HEATING
r. psi r.
s. °F s.
t. °F t.
u. °F u.
v. psi v.
w. °F w.
x. °F x.
y. °F y.
COOLING HEATING
psi a.
psi b.
psi c.
gpm d.
COOLING HEATING
°F h.
°F i.
°F j.
COOLING
°F
°F
°F
COOLING
Btu/h
COOLING
Volts
Amps
Watts
COOLING
Btu/h
COOLING
Btu/h
COOLING
psi
°F
°F
°F
psi
°F
°F
°F
71
Loop: Open / Closed
Hot Water Generator: Y / N
LOAD COAX (Water-to-Water)
COOLING
psi a.
psi b.
psi c.
gpm d.
LOAD COAX (Water-to-Water)
COOLING
°F h.
°F i.
°F j.
Software Version
ABC:
AXB:
IZ2:
T'STAT:
psi
psi
psi
gpm
°F
°F
°F