Carrier 50RLP installation instructions Total Number of Stages

Models: 50RLP

1 28
Download 28 pages 1.7 Kb
Page 22
Image 22

REMOTE OCCUPANCY — This input is used to provide an external clock input to enable all 18 of the local schedules, start the loop pumps, and enable loop temperature control.

Remote Occupancy:

 

Display Units

Discrete ASCII

Default Value

Disable

Display Range

Enable/Disable

Network Access

Read/Write

SYSTEM/SHUT DOWN — This discrete input is used to provide a signal from the fire alarm panel that will shut down the Aquazone™ System Control Panel, disable the system zone relays, and send out a command to shut down the water source heat pumps.

System/Shut Down:

 

Display Units

Discrete ASCII

Default Value

Enable

Display Range

EmStop/Enable

Network Access

Read/Write

OVERRIDE INPUT FOR ZONE 1-18 — These inputs are used to sense an external dry contact that override/enable each of the 18 local schedules, start the loop pumps, and enable loop temperature control.

Override Input for Zone 1-18

 

Display Units

Discrete ASCII

Default Value

Disable

Display Range

Enable/Disable

Network Access

Read/Write

PUMP NUMBER 1 — When the Aquazone System Control Panel is configured for variable speed pumping, this point displays the speed of Pump 1, as determined by a PID loop set to control supply water pressure. When the Aquazone system control panel is configured for constant flow this point will display 0% when the pump is OFF and 100% when the pump is on.

Pump Number 1

 

Display Units

%

Default Value

0

Display range

0-100

Network Access

Read/Write

PUMP NUMBER 2 — When the Aquazone system control panel is configured for variable speed pumping, this point displays the speed of Pump 2, as determined by a PID loop set to control supply water pressure. When the Aquazone system control panel is configured for constant flow this point will display 0% when the pump is OFF and 100% when the pump is on.

Pump Number 2

 

Display Units

%

Default Value

0

Display range

0-100

Network Access

Read/Write

NUMBER OF STAGES — Table 13 is used with the follow- ing four points to determine the number of stages that should be active for the percent output displayed and the hardware installed with the Aquazone system control panel. When the outputs are configured for staging the second output will ramp up when the first output has reached 100%. While the second output is controlling the temperature the first will be held at 100%. When the second output ramps down to zero percent the first output will resume temperature control.

Table 13 — Total Number of Stages

TOTAL NUMBER OF STAGES

 

 

2

 

 

 

 

 

 

Output Displayed

45

50

95

100

 

 

 

 

 

Stage Activated

1

2

 

 

 

 

 

Stage Deactivated

1

2

 

 

 

 

 

TOTAL NUMBER OF STAGES

4

 

 

 

 

 

 

 

 

 

 

 

Output Displayed

20

25

45

50

70

75

95

100

 

 

 

 

 

 

 

 

 

Stage Activated

1

2

3

4

 

 

 

 

 

 

 

 

 

Stage Deactivated

1

2

3

4

 

 

 

 

 

 

 

 

 

COOLING TOWER 1 SPEED/LEVEL — When the Aqua- zone system control panel is configured for variable speed cooling tower control, this point displays the speed of tower fan 1. When the Aquazone system control panel is equipped for staged output, this point displays the percent of stages commanded. The actual number of stages active will be determined by the staging cards ordered with the Aquazone system control panel. See Table 13. The value displayed is determined by a PID (proportional/integral/derivative) loop set to control the supply-water temperature at the Occupied high set point.

Cooling Tower 1 Speed/Level

Display Units

%

Default Value

0

Display range

0-100

Network Access

Read/Write

COOLING TOWER 2 SPEED/LEVEL — When the Aqua- zone system control panel is configured for variable speed cooling tower control, this point displays the speed of tower fan

2.When the Aquazone system control panel is equipped for staged output, this point displays the percent of stages com- manded. The actual number of stages active will be determined by the staging cards ordered with the Aquazone system control panel. See Table 13. The value displayed is determined by a PID loop set to control the supply water temperature at the Occupied high set point.

Cooling Tower 2 Speed/Level

Display Units

%

Default Value

0

Display range

0-100

Network Access

Read/Write

HEAT SOURCE 1 SPEED/LEVEL — When the Aquazone system control panel is configured for modulating heat source, this point displays the percent open or percent heat capacity re- quested. When the Aquazone system control panel is equipped for staged output, this point displays the percent of stages com- manded. The actual number of stages active will be determined by the staging cards ordered with the Aquazone system control panel. See Table 13. The value displayed is determined by a PID loop set to control the supply water temperature at the Oc- cupied Low set point.

Heat Source 1 Speed/Level

 

Display Units

%

Default Value

0

Display range

0-100

Network Access

Read/Write

22

Page 22
Image 22
Carrier 50RLP installation instructions Total Number of Stages