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5 - 24 RTHC-IOM-1C

Higher numbers would improve the response of the

control to transient loads, but also tend to cause

control instability. Use caution and small incremental

changes when making adjustments.

Liquid Level Control Proportional Gain

The range of values is 0.2 to 30 in increments of 0.1.

The ROM default is 10. Refer to the General Factory

Settings Table.

Liquid Level Control Integral Reset Time

The range of values is 5 to 500 in increments of 1.

The ROM default is 50. Refer to the General Factory

Settings Table.

Liquid Level Control Rate Time

The range of values is 0 to 25.5 in increments of 0.1.

The ROM default is 0. Refer to the General Factory

Settings Table.

Local Atmospheric Pressure

The range of settings is 10 to 16 psia in increments

of 1 or 0.1 psia or kPa depending on the service

setup screen. The ROM default is 14.7 psia.

Service Settings (Password Protected

Machine Configuration Group)

The machine configuration password is <+> <-> <+>

<-> <+> <-> <Enter>. If the machine configuration

password is entered, the display goes to the menu

series following. If a key is not pressed within the

time set on the Password Duration Screen, the

display returns to the chiller operating mode display

of the chiller report, and the password must be

entered again to return to this menu.

Machine Configuration Group Heading

This header appears when the headers do not

appear in the service settings menu.

Compressor Model Number Frame Size and

Capacity.

Values for [YY] are taken from the 6th and 7th digits

of the compressor model number on the compressor

nameplate. The ROM default is “C2”.

Refrigerant Monitor Type

Possible values for type are none; (ROM default),

analog interface, and IPC interface.

Starter Type

Possible values for type are Y Delta (ROM default); X

line; solid state, C515 series; solid state, EA series;

auto transformer; and primary reactor. For the RTHC

Liq Lvl Cntrl Proportion Gain: xx.x%/in