Trane RTHC - Design Delta Temperature; This value should be set at the delta temperature specified for the chiller during the initial selection...; Maximum Restart Inhibit Timer Setting; The range of values is 5 to 20 minutes in increments of 1 minute.

5 - 22 RTHC-IOM-1C
The range of values is 0 to 600 seconds in
increments of 1. The ROM default is 0 sec.
Design Delta Temperature
This value should be set at the delta temperature
specified for the chiller during the initial selection,
based on all operating conditions expected. If
operating conditions change significantly, check with
Trane technical service to see if modifications may
be required.
The range of values is 4 to 30
°
F (2.2 to 16.7
°
C) in
increments of 1 or 0.1
°
F or C depending on the
service setup screen. The ROM default is 10
°
F
(5.5
°
C).
Leaving Water Temperature Cutout Setpoint
The range of values is -10 to 36
°
F (-23.3 to 2.2
°
C) in
increments of 1 or 0.1
°
F or C depending on the
service setup screen. The ROM default is 36.0
°
F
(2.2
°
C).
When this setpoint is within 1.7
°
F of the front panel
chilled water setpoint, the front panel chilled water
setpoint is increased along with this setpoint to
maintain the differential. A message will be displayed
for 2 seconds to indicate that the FPCW setpoint has
been increased.
When this setpoint is adjusted below 35.3
°
F the
following is displayed on the second line: “Warning:
Adequate Antifreeze Required”.
Low Refrigerant Temperature Cutout Setpoint
The range of values is -5 to 36
°
F (-37.2 to 2.2
°
C) in
increments of 1 or 0.1
°
F or C depending on the
service setup screen. The ROM default is 32.0
°
F
(0.0
°
C.
When this setpoint is within 6
°
F of the front panel
chilled water setpoint, the front panel chilled water
setpoint is increased along with this setpoint to
maintain the differential. A message will be displayed
for 2 seconds to indicate that the FPCW setpoint has
been increased.
When this setpoint is adjusted below 28.5
°
F the
following is displayed on the second line: “Warning:
Adequate Antifreeze Required.”
Condenser Limit Setpoint
The range of values is 80 to 120% in increments of
1%. The ROM default is 93%.
NOTE: This setting in
relative to the high pressure cutout switch setting as
defined in the machine configuration menu, and
defines where the condenser limit control will take
effect to avoid a high pressure cutout.
Maximum Restart Inhibit Timer Setting
The range of values is 5 to 20 minutes in increments
of 1 minute. The ROM default is 5 Minutes.
Under/Over Voltage Protection Enable
This feature is disabled if the line voltage sensing
option is not installed.
where disabled is the ROM default.
Phase Reversal Protection Enable
where enabled is the ROM default.
Design Delta Temperature: xxx.x F
Press (+)(-) to Change Setting
Lvg Wtr Temp Cutout Setpoint: xxx.x F
Press (+)(-) to Change Setting
Low Rfgt Temp Cutout Setpt: xxx.x F
Press (+)(-) to Change Setting
Condenser Limit Setpoint: xx% HPC
Press (+)(-) to Change Setting
Maximum RI Timer: xxx minutes
Press (+)(-) to Change Setting
Under/Over Voltage Protection: [d/e]
Press (+)(-) to Change Setting
Phase Reversal Protection: [d/e]
Disabling could result in Cprsr Damage