38
Cooling Config
Cool Hysteresis
– Cool hysteresis is the number of degree(s) Fahrenheit that the tempering stat is
allowed to be below the cooling set point before the RTULink stops a call for cooling.
# Cool Stages
– Sets the number of cooling stages that are equipped on the RTU.
Cool Differential
Stage 2
– When the number of cool stages is set to greater than 1, the following menus will be
available. Second stage cooling temperature differential is the number degree(s) Fahrenheit
above the cooling set point that the tempering sensor must be to allow a call for the second stage
of heating.
Stage 3
– Third stage cooling temperature differential is the number degree(s) Fahrenheit above
the cooling set point plus the Cool Diff Stg 2 that the tempering sensor must be to allow a call for
the third stage of cooling.
Min On Time
– Minimum cool on time is the time that the cooling signal is required to be ON before it is
allowed to turn OFF. This timer is intended to reduce condenser cycling and increase life cycle of the
cooling components. The timer is in a MM:SS format and is adjustable from 00:00 to 20:00.
Min Off Time
– Minimum heat off time is when the heating signal is required to be OFF before it is
allowed to turn ON. This timer is intended to reduce heater cycling and increase life cycle of the heating
components. The timer is in a MM:SS format and is adjustable from 00:00 to 20:00.
Scheduling
– Menu to set scheduling to be ON or OFF. If disabled, the RTULink will always operate with the
default settings configured through the board HMI. If enabled, settings can be overridden through CASLink.
Occ Override
– Menu to set occupied override to be ON or OFF. When set to ON, the state of occupancy can be
overridden on the HMI.
Room Ovrd Duration
– Length of override timer. If override is active, it can be manually stopped by pressing the
end override button on the HMI. The default setting is 1 hour but can be adjusted up to 16 hours.
Occ Intlk
– When set to Passthru, allows a hardware input (on the ALARM terminal of the stat side of the
RTULink) which will output a defrost signal to the RTU side. When set to Interlock, this will force the RTULink into
an occupied state in scheduling and forces the blower on.
Unit Options
Board Config
Ctrl Mode
– When scrolling through the menu, the board will adjust between the following
settings, Full Control, External Control, Monitor Only, and Emergency Heat. Control mode
definitions are explained in detail in
on page 24
Board Address
– Modbus addressing begins at 60, so unit number 1 will be assigned 60.
Modbus 61 will be assigned to unit number 2. Modbus 62 will be assigned to unit number 3, etc. It
is important to number the units in accordance with the mechanical plans.
Temp Unit
– Sets the temperature reading to Fahrenheit or Celcius.
# of HMIs
– Sets the number of HMIs connected to the system.
Screen Saver
– Setting to enable screen saver option.
Lock Screen
– Displays information on the Space HMI when the screen is inactive.
HMI Averaging
HMI ‘x’ Avg
– Sets if averaging is ON or OFF.
Blower Config
– Sets the minimum blower timer.
Airflow Required
– Setting to turn on/off proving for airflow.
Min Blow Time
–
The minimum amount of time the blower is required to be ON before shutting
OFF, and the minimum time it is required to be OFF before turning ON. This setting is intended to
reduce the blower from cycling, and improve the lifespan of the motor and belts if applicable
Blower Delays
– Setting to enable or disable blower delays.
Blower On Delay
– Time setting for Blower On Delay.
Blower Off Delay
– Time setting for Blower Off Delay.
Содержание RTULink
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Страница 12: ...12 Figure 10 Space Temperature RTULink Wiring Figure 9 Space Thermistor Detail Plastic Housing Wall Mount...
Страница 30: ...30 Main Board HMI Menu Tree...
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Страница 52: ...52 APPENDIX C Fixed Dry Bulb Economizer Figure 34 Fixed Dry Bulb Economizer Operation...
Страница 53: ...53 Differential Dry Bulb Economizer Figure 35 Differential Dry Bulb Economizer Operation...
Страница 54: ...54 Fixed Enthalpy Economizer Figure 36 Fixed Enthalpy Economizer Operation...
Страница 55: ...55 Differential Enthalpy Economizer Figure 37 Differential Enthalpy Economizer Operation...