Diagnostics
114
RTHD-SVX02H-EN
Table 35. Diagnostics Table
Hex
Code
Diagnostic Name
and Source
Severity
Persistence Criteria
Reset
Level
AB
Evaporator
Leaving Water
Temperature
Sensor
Normal
Latch
Bad Sensor or LLID
Remote
27D
Evaporator Liquid
Level Sensor
Normal
Latch
Bad Sensor or LLID
Remote
5BA
Evaporator Refriger-
ant
Pressure
Transducer
Normal
Latch
Bad Sensor or LLID
Remote
ED
Evaporator Water
Flow Lost
Immediate
NonLatch
The chilled water flow proof input was open for more than 6-10
contiguous seconds after flow had been proven. The pump com
-
mand status will not be effected. 6-10 seconds of contiguous flow
shall clear this diagnostic. Even though the pump may be com-
manded to run in the STOP modes (pump off delay time), this
diagnostic shall not be called out in the STOP modes.
Remote
384
Evaporator Water
Flow Overdue
Normal
NonLatch
Evaporator water flow was not proven within 20 minutes of the
Chilled water pump relay being energized. The Evap pump com-
mand status will not be effected.
Remote
5C4
Excessive Loss of
Comm
Immediate
Latch
Loss of comm with 20% or more of the llids configured for the
system has been detected. This diagnostic will suppress the
callout of all subsequent comm loss diagnostics. Check power
supply(s) and power disconnects - troubleshoot LLIDS buss using
TechView
Remote
4C4
External Base Load-
ing Setpoint
Info and Spe-
cial Action
NonLatch
a. Not “Enabled”: no diagnostics. b. “Enabled “: Out- Of-Range
Low or Hi or bad LLID, set diagnostic, default BLS to next level of
priority (e.g. Front Panel SetPoint. This Info diagnostic will auto-
matically reset if the input returns to the normal range.
Remote
87
External Chilled Wa-
ter Setpoint
Info
NonLatch
a. Function Not “Enabled”: no diagnostics. b. “Enabled “: Out-Of-
Range Low or Hi or bad LLID, set diagnostic, default CWS to next
level of priority (e.g. Front Panel SetPoint). This Info diagnostic
will automatically reset if the input returns to the normal range.
Remote
89
External Current
Limit Setpoint
Info
NonLatch
a. Not “Enabled”: no diagnostics. b. “Enabled “: Out- Of-Range
Low or Hi or bad LLID, set diagnostic, default CLS to next level of
priority (e.g. Front Panel SetPoint. This Info diagnostic will auto-
matically reset if the input returns to the normal range.
Remote
1C2
High Compressor
Discharge Tempera-
ture
Immediate
Latch
The compressor discharge temperature exceeded 190°F. This
diagnostic will be suppressed if it occurs during the compressor
run-unload period or after the compressor has stopped, but a run
unload will be terminated early as a result. Note: As part of the
Compressor High Temperature Limit Mode (aka Minimum Capac-
ity Limit), the compressor shall be forced loaded as the filtered
discharge temperature nears this trip-point.
Remote
1C6
High Differential
Refrigerant Pressure
Normal
Latch
a. The system differential pressure was above 160 Psid- trip im-
mediately (normal shutdown) B The diff pressure was above 152
Psid - trip in 1 hour
Remote
584
High Evaporator
Liquid Level
Normal
Latch
The liquid level sensor is seen to be at or near its high end of
range for 80 contiguous minutes while the compressor is running.
(The diagnostic timer will hold, but not clear when the circuit is
off). Design: 80% or more of bit count corresponding to +21.2
mm or more liquid level for 80 minutes)
Remote
6B8
High Evaporator
Refrigerant Pressure
Immediate
and Special
Action
NonLatch
The evaporator refrigerant pressure has risen above 190 psig.
The evaporator water pump relay will be de-energized to stop the
pump regardless of why the pump is running. The diagnostic will
auto reset and the pump will return to normal control when the
evaporator pressures falls below 185 psig. This diagnostic must
shutdown the chiller if it is running.
Local
F5
High Pressure Cutout Immediate
Latch
A high pressure cutout was detected; C.O. on rise @ 180 psig,
reset @ 135 psig (+/-5 psi on switching tolerance) Note: Pres-
sure relief valve is 200 Psig +- 2% trip at 315 ± 5 psi. Note:
Other diagnostics that may occur as an expected consequence of
the HPC trip will be suppressed from annunciation. These include
Phase Loss, Power Loss, and Transition Complete Input Open.
Local
1C6
High Refrigerant
Pressure Ratio
Immediate
Latch
The system pressure ratio exceeded 5.61 for 1 contiguous min-
ute. This pressure ratio is a fundamental limitation of the com-
pressor. The pressure ratio is defined as Pcond (abs)/Pevap(abs).
Remote
59C
Loss of Oil at Com-
pressor (Running)
Immediate
Latch
In running modes , Oil Loss Level Sensor detects lack of oil in the
oil tank feeding the compressor (distinguishing a liquid flow from
a vapor flow)
Local
Содержание RTHD series
Страница 28: ...Installation Mechanical 28 RTHD SVX02H EN Figure 9 Unit Weights and Dimensions for Rigging Y Z A B C D X C G...
Страница 69: ...Installation Electrical RTHD SVX02H EN 69 Figure 35 Solid State Starter Panel Power Wire Routing...
Страница 120: ...120 RTHD SVX02H EN...
Страница 121: ...RTHD SVX02H EN 121 23094870 1 1 FIELD WIRING RTHD PBL 3 12 03 H 23094870 1 1 FIELD WIRING RTHD PBL 3 12 03 H...
Страница 122: ...122 RTHD SVX02H EN...
Страница 123: ...RTHD SVX02H EN 123 EXV...
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Страница 126: ...126 RTHD SVX02H EN RLA 0 10VDC RLA 0 10V 2 10VDC 4 20mA 2 10VDC 4 20mA TRACER SUMMIT LONTALK...
Страница 127: ...RTHD SVX02H EN 127 2 10VDC 4 20mA TRACER SUMMIT LONTALK 4 20mA 2 10VDC 4 20mA 2 10VDC...
Страница 128: ...128 RTHD SVX02H EN 1A24...
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Страница 130: ...130 RTHD SVX02H EN UC800 RLA 115V 27V 115V TD 7...
Страница 131: ...RTHD SVX02H EN 131 CLASS1 CLASS1 CLASSII 300V W1 W2 120VAC 7 2AMPS 2 88AMP 1 3HP 7 2FLA 240VAC 5AMPS IOM...
Страница 132: ...132 RTHD SVX02H EN...
Страница 133: ...RTHD SVX02H EN 133 EXV 2 EXV 1...
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Страница 137: ...RTHD SVX02H EN 137...
Страница 138: ...138 RTHD SVX02H EN 1A24...
Страница 139: ...RTHD SVX02H EN 139...
Страница 140: ...140 RTHD SVX02H EN UC800 RLA 115V 27V 115V TD 7 27V...
Страница 141: ...RTHD SVX02H EN 141 115V CLASS1 CLASS1 CLASSII 300V W1 W2 120VAC 7 2AMPS 2 88AMP 1 3HP 7 2FLA 240VAC 5AMPS IOM...
Страница 142: ...142 RTHD SVX02H EN...
Страница 144: ...144 RTHD SVX02H EN HEAT RECOVERY OIL TANK EVAPORATOR CONDENSER Heat Recovery Model...
Страница 145: ...RTHD SVX02H EN 145 ERY CONTROL PNAEL SEE DETAIL A G...
Страница 146: ...146 RTHD SVX02H EN...
Страница 147: ...RTHD SVX02H EN 147 C A DIVISION OF AMERICAN STANDARD INC ALL RIGHTS RESERVED...
Страница 148: ...148 RTHD SVX02H EN HEAT RECOVERY OIL TANK EVAPORATOR CONDENSER DETAIL A Heat Recovery Model...
Страница 149: ...RTHD SVX02H EN 149 ERY CONTROL PNAEL SEE DETAIL A...