LCBS CONNECT SOLUTION
19
31-00118EFS—01
The
minimum ramp rate
assures that the occupied temperature will be met at the appropriate scheduled occupied time
without overheating or overcooling condition space. If the equipment is oversized or the call for mechanical cooling or
heating is not too severe, the equipment is cycled appropriately to achieve occupied set point in a timely manner. The
beneficial outcome is gradual, responsible operation of equipment that ultimately saves energy, reduces wear and tear on
equipment, and ensures comfort conditions by occupancy.
Similarly, the
maximum ramp rate
assures that the occupied temperature will be met at the appropriate scheduled
occupied. In this case, it's probably very hot, very cold outside or some type of excessive load exists in the building space.
Maximum ramping is probably associated with observation and realization of local heating or cooling "design
conditions." As with minimum ramping, the beneficial outcome is the same including responsible operation of equipment
that reduces wear and tear on equipment and ensures comfort by occupancy.
NOTICE
Work with your Honeywell customer service or Honeywell LCBS Connect distributor professional for advice
for constructing parameters properly to ensure successful Adaptive Intelligent Recovery deployment.
Fig. 9.
Table 3.
NOTE:
When used with Adaptive Intelligent Recovery, minimum and maximum apply to the rate of recovery expressed in
degrees per hour. The smallest amount of recovery in one hour is minimum recovery. The most recovery in one
hour is maximum recovery. For example, a heating plant can be sized for a recovery of 3°F per hour, at 0°F out-
side air temperature and a recovery of 8°F per hour at 55°F. The minimum recovery rate is 3°F per hour and the
maximum recovery rate is 8°F per hour.
Adaptive Intelligent Recovery™ Summary
You will need to understand how your equipment is sized in relationship to heating and cooling load in the
middle of summer and winter and during transitional climate season. It is absolutely essential that you
understand concepts in diagram above so that you can commission an effective recovery strategy. Use LCBS
Connect remote troubleshooting tools to help you set appropriate Adaptive Intelligent Recovery settings.
SETPOINT NAME
DESCRIPTION
MINIMUM RECOVERY
SENSOR VALUE
THE VALUE OF THE RECOVERY SENSOR (TYPICALLY OUTSIDE AIR AT LOCAL DESIGN
TEMPERATURE) AT WHICH THE MINIMUM RECOVERY RAMP OCCURS.
MAXIMUM RECOVERY
SENSOR VALUE
THE VALUE OF THE RECOVERY SENSOR (TYPICALLY OUTSIDE AIR AT NO LOAD
TEMPERATURE) AT WHICH THE MAXIMUM RECOVERY RAMP OCCURS.
MINIMUM RECOVERY
RATE
THE RECOVERY RATE FOR THE MECHANICAL SYSTEM (TYPICALLY HEATING OR COOLING)
AT DESIGN CONDITIONS (USUALLY THE OUTSIDE AIR TEMPERATURE). THIS MINIMUM RATE
OF RECOVERY TAKES THE MAXIMUM TIME TO GET TO THE NEW OCCUPIED OR STANDBY
SETPOINT.
MAXIMUM RECOVERY
RATE
THE RECOVERY RATE FOR THE MECHANICAL SYSTEM (TYPICALLY HEATING OR COOLING)
AT NO LOAD CONDITIONS (USUALLY THE OUTSIDE AIR TEMPERATURE AT WHICH HEATING
OR COOLING IS NO LONGER NEEDED). THIS MAXIMUM RATE OF RECOVERY TAKES THE
MINIMUM TIME TO GET TO THE NEW OCCUPIED OR STANDBY SETPOINT.
MCR36722
OUTDOOR AIR TEMPERATURE – RECOVERY SENSOR VALUE
MINIMUM (MIN)
RECOVERY RAMP RATE
(DESIGN LOAD)
OUTDOOR AIR TEMPERATURE
INDICATING DESIGN
COOLING CONDITION
UNOCCUPIED OR
STANDBY SETPOINT
MIN
MAX
START “OCCUPIED”
SCHEDULE
STANDBY OR
OCCUPIED SETPOINT
MAXIMUM (MAX)
RECOVERY RAMP RATE
(NO LOAD)
OUTDOOR AIR TEMPERATURE
INDICATING LOW, NO LOAD
CONDITIONS