46
JOHNSON CONTROLS
FORM 150.68-ICOM1
ISSUE DATE: 10/15/2020
DEFROST INITIATION
TEMP = XX.X
o
F
In the heating mode, the defrost initiation temperature is
the temperature below which a defrost will occur when
the defrost initiation time expires.
DEFROST INITIATION
TIME = XX MIN
In the heating mode, the defrost initiation time is the
programmed optimum time between defrosts, system to
system. The actual time between defrost is adapted from
this 100% programmed value as part of the adaptive
defrost control.
DEFROST TERMINATION
TIME = XX MIN
In the heating mode, the defrost termination time should
be regarded as the maximum optimum time that a defrost
should take.
In the cooling mode for loading to take place the leaving
water temperature must not be falling faster than the
programmed value when the temperature is within the
RATE CONTROL TEMP RANGE.
RATE SENSITIVITY
= XX.X
o
C/MIN.
In the heating mode, for loading to take place the leaving
water temperature must not be rising faster than the
programmed value when the temperature is within the
RATE CONTROL TEMP RANGE.
RATE CONTROL TEMP
`= XX.X
o
F
In the cooling mode, this range starts at the top of the
control range. Within this range, rate sensitivity as
programmed above is used. Above this range a fixed
1 °F/minimum is used. Loading is prevented if the
leaving water temperature is falling faster than the RATE
SENSITIVITY value.
In the heating mode, this range starts at the bottom of
the control range. Within this range, rate sensitivity as
programmed above is used. Below this range a fixed
1 °F/minimum is used. Loading is prevented if the
leaving water temperature is rising faster than the RATE
SENSITIVITY value.
Units with Dual Pump Hydro kit Option
DUTY/STANDBY PUMP
CHANGE OVER =XX DAYS
When under the OPTION key the PUMP SELECTION
is set to AUTOMATIC, the DUTY PUMP is the pump
with the shortest run hours. Pump duty is changed when
the pumps are off or if the duty pump run hours are
greater than the programmed DUTY/STANDBY PUMP
CHANGEOVER DAYS.
Содержание YLPA 0115SE
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