Reset Ratio; Start Reset Setpoint; Maximum Reset Setpoint; Ice Building Enable - Trane CVHE Information Manual

under Duplex Control and it is Compressor B.

Reset Ratio

This is the aggressive value. A higher number is a
quicker response.
[type] Reset Ratio:
Press (+)(-) to Change Setting
The values for Reset Ratio for each of the reset types
are:
Reset Increment
Reset Ratio
Type Range
Return 10 to
120%
Outdoor 80 to -80%

Start Reset Setpoint

This is the Delta T the unit is trying to maintain.
[type] Start Reset Setpoint: xxx.x F
Press (+)(-) to Change Setting
The values for Start Reset for each of the reset types
are:
Start Increment
Reset Reset
Type Range
°
Return 4 to 30 F
(2.2 to
°
16.7 C)
Outdoor 50 to
°
130 F (10
°
to 54.4 C)

Maximum Reset Setpoint

Controllable Maximum Reset value. Allows a reset
"Up" of this value. The chilled water is maintained
between the leaving chilled water setpoint and the
new reset value.
[type] Max Reset Setpoint: xxx.x F
Information Manual
xxx %
(Eng. Increment Default
units) (SI) Value
1% 1% 50%
1% 1% 10%
(Eng. Increment Default
units) (SI) Value
° °
1 F 1 C 10
(5.6
° °
1 F 1 C 90
(32.2
Press (+)(-) to Change Setting
The values for Maximum Reset for each of the reset
types are:
Maximum
Reset
Type
Return 0 to 20
Outdoor 0 to 20

Ice Building Enable

The following will be displayed only if the ice building
option is installed.
Ice Building:
Press (+)(-) to Change Setting
Possible values of [d/e] are: Disable (Factory
Default) and Enable.

Front Panel Ice Termination Setpoint

The following will be displayed only if ice building
option is installed.
Panel Ice Termination Setpoint:xxx.x f/c
Press (+)(-) to Change Setting
Range of values is 20.0 to 32.0
°
F
increments of 1 or 0.1
°
C)
Service Setup Screen xxx or xxx.x. Factory Default is
° °
27.0 F (-2.8
°
F
°
C)
Ice Making To Normal Cooling Transition
Timer
The following will be displayed only if the ice building
option is installed. This allows for a timed idle/stop
period for (X) minutes when coming out of ice before
going into the cooling mode (timed by Chiller).
Ice-To-Normal Cooling Timer: xx min
Press (+)(-) to Change Setting
Increment
Reset (Eng. Increment
Range units)
° °
F 1 F 1
(0.1 to
°
11.1 C)
° °
F 1 F 1
(0.1 to
°
11.1 C)
°
F (-6.7 to 0.0
° °
F or C depending on the
C).
Operator Settings
Default
(SI) Value
° °
C 5 F
°
(2.8 C)
° °
C 5 F
°
(2.8 C)
[d/e]
°
C) in
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