Honeywell EXCEL 5000 User Manual

EXCEL CARE CONTROL ICONS ALPHABETIC REFERENCE
53 74-5577–33 (US)
EN2B-0184 GE51 R0518 (Europe)
Maximum off time Number type: Decimal, Unit: percent
Default: 50.0 percent, Range: 25 through 80.0 percent
Select a Maximum off time for the output (YD1 or YD2, for example, a supply fan)
that guarantees an adequate air change (minimum outdoor air rate per person). This
value refers to cycle duration.
Minimum off time Number type: Decimal, Unit: percent
Default: 0.0 percent, Range: 5 through 50.0 percent
Select a Minimum off time that prevents the fan motor from overheating. This value
refers to cycle duration.
Cycle time Number type: Whole number, Unit: Minutes
Default: 30 min., Range: 5 through 60 min.
Select a Cycle time that ensures that the fan motor does not switch on more often
than the allowable number of times per hour.
Duty cycle type Determines the system type (Heating, Cooling, or Heating and cooling).
Fan type Determines whether or not the system has a two-speed fan.
Internal Parameters Additional parameters in Excel Web / Excel Web II.
Temperature setpoint Zone temperature setpoint
with value 3 and a limit of 5 < = x < = 40.
Duty cycle type Indication of available heating and cooling possibilities,
with value 1 and a limit of 1 < = x < = 3
(1=heating, 2=cooling, 3=heating and cooling).
Parameter Number
Descriptions P3 Comfort range (±).
P4 Maximum off time.
P5 Minimum off time.
P6 Cycle time.
P7 System type:
1=heating
2=cooling
3=heating and cooling
P8 Fan type:
1=Two-speed fan
0=Single-speed fan
P9 Highest zone temperature*
P10 Lowest zone temperature*
P11 Setpoint*
* These values are only available in the controller if you enter them as
parameters.
NIPU and DUC Operation Using both NIPU and DUC in a system can result in command conflicts. You should
use switching tables to force NIPU to override DUC commands.
No Fixed Off Times DUC does not work with fixed off times. Off time duration varies as a function of the
system load within limits you define. The following diagram illustrates how the load-
corrected off-time duration function operates in DUC.

Honeywell EXCEL 5000 Specifications

General

Brand	Honeywell
Model	EXCEL 5000
Category	Control Systems
Language	English