70
Installation, Operation & Maintenance - HKV Series
Troubleshooting Form
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T
ports to determine water flow and temperature difference. If water-side analysis shows poor performance,
refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.
:
e
t
a
D
p
u
tr
a
t
S
:
e
p
y
T
p
o
o
L
:r
e
m
o
t
s
u
C
Model #:
:
%
&
e
p
y
T
e
z
e
e
rf
it
n
A
:
#
l
a
ir
e
S
Complaint:
Voltage
Compressor Amps
1
Suction Temp
2
Suction Press
2a
Saturation Temp
2b
Superheat
3
Discharge Temp
4
Discharge Press
4a
Saturation Temp
4b
Subcooling
5
Liquid Line Temp
6 Source Water In Tmp
7 Source Water Out Tmp
8 Source Water In Pres
9
10
11
Source Water Out Pres
9a
Press Drop
9b
Flow Rate
Return Air Temp
Supply Air Temp
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR =
Flow Rate x
Temp. Diff x
Fluid Factor
s
e
t
o
N
n
o
it
p
ir
c
s
e
D
Temp Diff. =
Heating
Cooling
Water-to-Air Units
COMPRESSOR
DISCHARGE
SUCTION
EXPANSION
VALVE
FILTER
DRIER
REVERSING
VALVE
HEATING POSITION
COOLING POSITION
1
COAX
5
10
11
9
7
8
6
4
3
2
LT2:
HEATING
LIQUID
LINE
5
LT1:
COOLING
LIQUID
LINE
CONDENSER (COOLING)
EVAPORATOR (HEATING)
REFRIG FLOW - HEATING
REFRIG FLOW - COOLING
REFRIGERANT:
HFC-410A
OPERATING MODE: HEATING COOLING
Fluid Factor: (for Btuh)
500 (Water); 485 (Antifreeze)
Source
Fluid Factor: (for kW)
4.18 (Water); 4.05 (Antifreeze)
AIR
COIL
Superheat = Suction temperature - suction saturation temp. = _________________ (deg F)
Subcooling = Discharge saturation temp. - liquid line temp. = _________________ (deg F)
CONDENSER (HEATING)
EVAPORATOR (COOLING)
