Figure 43 Setpoints Parameters Screen - Emerson Liebert Challenger 3000 User Manual

Figure 43 Setpoints parameters screen - Page 1
SETPOINTS (pg 1 of 6)
S101
S102
S103
S104
S105
S106
S107
S108
S109
S110
S111
Temperature Setpoint—This parameter selects a temperature that the cooling unit will maintain
by applying cooling and or reheats. This parameter is adjustable from 41-104°F (5-40°C), the factory
default setting is 73°F (22.7°C).
Control Type—This parameter selects the type of control the system will use to activate cooling,
heating, humidification and dehumidification. A detailed description of each control type can be found
in 3.7 - Supply Control.
Temperature Proportional Band—This parameter adjusts the activation points of compressors or
rate of change based on the actual sensor values deviation from setpoint. The smaller this number the
faster the compressors and valve(s) will increase capacity. Too small of a number may cause the unit
to short cycle the compressors or excessively reposition the valve.
Temperature Integration Time—This parameter adjusts the capacity of the unit based on time
away from setpoint so that accurate temperature control can be maintained. This parameter is only
active when Control Type is set to "PI".
AutoSet Enable—When this parameter is set to "YES" the temperature and humidity proportional
bands will automatically be set based on the type of unit and if teamwork modes are selected. To
change the proportional bands this parameter must be set to "NO".
Temperature Deadband—This parameter can be set to avoid overshooting of the setpoint and
cycling between the reheats and cooling. The value entered into this field will be split in half by the
temperature setpoint. Example—If the temperature setpoint is 70°F (21.1°C) and a 4°F (2.2°C) dead-
band is set, then no cooling will be activated until 72°F (22.2°C) and no heating will be activated until
68°F (20°C) is reached.
Second Setpoint—This parameter will select a temperature setpoint that will be activated in the
event of a customer input signal configured as the 2nd Setpoint. The customer input must be config-
ured for this parameter to activate. This parameter is adjustable from 41-104°F (5-40°C). The factory
default setting is 73°F (22.7°C).
Backup Temperature Setpoint—This parameter will select a temperature setpoint that will be
activated in the event of a BMS Timeout. The BMS timer must be configured for this parameter to
activate. This parameter is adjustable from 41-104°F (5-40°C). The factory default setting is 73°F
(22.7°C).
Heaters Deadband—On HPM units, this parameter changes the amount of deviation below the
temperature setpoint that the heaters will cycle On and Off. This parameter value is added to the
heating side of the normal temperature deadband.
PASSWORD (Actual Level 0)
Temperature Setpoint
Control Type
Temperature Proportional Band
Temperature Integration Time
AutoSet Enable
Temperature DeadBand
Second Setpoint
Backup Temperature Setpoint
Heaters DeadBand
for next/previous unit
then to change parameter
UNIT 01
Proportional
to select parameter
to confirm
61
Service Menu Parameters
????
73°F
5°F
min
No
0°F
73°F
73°F
°F