![background image](http://html.mh-extra.com/html/carrier/50yfh/50yfh_installation-operation-and-maintenance-instructions_2563365058.webp)
R e s i d e n t i a l D i g i t a l P a c k a g e d U n i t s G T- P B S e r i e s - 6 0 H z P u ro n
®
R e v : 4 A p r i l , 1 4
58
Troubleshooting Form
Customer:
Loop Type:
Startup Date:
Model #:
:
%
&
e
p
y
T
e
z
e
e
r
f
i
t
n
A
:
#
l
a
i
r
e
S
Complaint:
Voltage
Compress 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 Source Water Out Pres
9a
Press Drop
9b
GPM
10 Load Water In Temp
11 Load Water Out Temp
12 Load Water In Pres
13 Load Water Out Pres
13a
Press Drop
13b
GPM
14
Return Air Temp
15
Supply Air Temp
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR (Btuh) =
Enter HE or HR:
Flow Rate (GPM) x
Temp. Diff (deg F) x
Fluid Factor
<--Water-to-Water units only
<--Water-to-Water units only
<--Water-to-Air units only
<--Water-to-Water units only
Temp Diff. =
Temp Diff. =
<--Water-to-Water units only
<--Water-to-Water units only
Temp Diff. =
Heating
Description
Notes
Cooling
COMPRESSOR
DISCHARGE
SUCTION
HWG**
AIR
COIL
EXPANSION
VALVE
FILTER
DRIER*
REVERSING
VALVE
HEATING POSITION
COOLING POSITION
1
COAX
CO
A
X
5
12
10
13
11
14
15
9
7
8
6
4
3
2
LT2:
HEATING
LIQUID
LINE
5
LT1:
COOLING
LIQUID
LINE
CONDENSER (HEATING)
EVAPORATOR (COOLING)
CONDENSER (HT G)
EVAPORAT OR (CLG)
CONDENSER (COOLING)
EVAPORATOR (HEATING)
WATER-TO-AIR UNITS
WATER-TO-WATER UNITS
*Filter drier not used
for some R-22 units.
**Turn off HWG before
troubleshooting.
REFRIG FLOW - HEATING
REFRIG FLOW - COOLING
REFRIGERANT: R-22 R-410A R-407C
OPERATING MODE: HEATING COOLING
Fluid Factor:
500 (Water); 485 (Antifreeze)
Source
Load
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T ports to determine
water
fl
ow and temperature difference. If water-side analysis shows poor performance, refrigerant troubleshooting may be
required. Connect refrigerant gauges as a last resort.
Refrigerant Circuit Diagram