Carel humiFog UA1K0HM00, User Manual

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8.13.3 Factory Settings
c. Factory Settings - 1 2 3
Used for enabling the unit On/Off by digital
input or by supervisor system.
Used for setting the pump pressure
setpoints for warning and blocking alarms. Used for setting the water conductivity
sensor alarm.
4 5 6
Used for enabling/disabling the sensor fail
alarms. Used for setting the high pressure alarm
resets.
Used for setting the low pressure alarm
resets.
8.13.4 Initialization
e. Initialization - 1 2
Used for resetting the default values.
Used for setting/changing the Manufacturer
password (PW2):
Default Password: 0000
9. Control Method
9.1 Control for General Operation
The pumping station in the system, works to a constant pressure principle. When demand is needed in any of the zone(s), the demand
is communicated by pLAN to the pumping station, which starts and runs to constant pressure (default setting: 1000psi). The Remote
On/Off or other safety inputs may need to be satisfied at either the zone control panel, or the pumping station. These Digital Input
safeties/interfaces can be enabled/disabled in the software of either the zone or pump controllers. Alarms at either the zone or the
pumping station, can also show up as warnings, or blocking alarms for that zone, or the actual pumping station.
A typical control sequence is given below. (Note: This sequence could be for one zone, or multi-zones.)

The zone control Cabinet on each AHU will be looking for a demand signal (0-10 VDC or 4-20 mA) from the BAS.

As each zone is staged on, the pumping station connected to that group of zones will start the flow of water.

The pumping station will maintain a constant pressure (1000psi) to that group of zones.

As each individual stage in a zone and/or zones is engaged/disengaged, the pumping station will raise or lower the rpms of
the pump, to control the pressure to the setpoint (1000psi).
The pumping station will turn on whenever all of the following conditions are met:
1. Remote on/off is closed. Default: enabled
2. Minimum demand to enable pump. Default is 15%. If adjusted below 15%, the system may require additional
maintenance because the pump speed will be reduced. It is recommended to keep the minimum on setting above
15%.
3. No alarms present on the zone or pump.
The pumping station will turn off whenever there is:

A loss of supply fan status

Remote on/off is open

Zero demand from the BAS