Bell-gossett S14334B Technologic 5500 Series Variable Primary P Manual do Utilizador descarregar pdf (Página 17)

Press NO/0 and ENTER to edit the fields. To return

to the Stage/Destage Menu, shown in section 4.3.1,

press YES/7 and ENTER. See Table 8 below for a

description of the PV Stage variables.

4.3.1.2

PV Destage

From the Stage/Destage Menu, shown in section

4.3.1, press SET POINT/2 and ENTER to get to the

PV Destage screen shown below.

Destage: ##%

Destg Pr Timer: ##s

HD Spd: ##%

HD Pr Tm: ##s Ok ? (Y/N)

To edit the fields, press NO/0 and ENTER. To return

to the Stage/Destage Menu, shown in section 4.3.1,

press YES/7 and ENTER. See Table 9 below for a

description of the PV Destage variables.

4.3.1.3

EOC Stage

From the Stage/Destage Menu, shown in section

4.3.1, press SETUP/3 and ENTER to get to the EOC

Stage screen shown below.

Pump Max Flow: #

Stage Proof Tm: ##s

Flow Offset: #

Ok ? (Y/N)

To edit the fields, press NO/0 and ENTER. To return

to the Stage/Destage Menu, shown in section 4.3.1,

press YES/7 and ENTER. See Table 10 below for a

description of the EOC Stage variables.

Variable Unit Description Default Value Range Field Value

Destage % Percentage of the stabilized speed at which the lag pump 85 0-100

will stop

Destg s Proof timer prior to stopping lag pump 30 0-999

Pr Timer

HD Spd % Lowest speed at which parallel pumps will operate prior 50 0-100

to destaging the lag pump

HD Pr Tm s Proof timer prior to destaging the lag pump when 30 0-999

operating below the HD speed

Table 9: PV Destage Variables

Variable Unit Description Default Value Range Field Value

Pump GPM Maximum flow allowable prior to starting a lag pump 0 0-9999

Max Flow

Stg Proof s Proof timer prior to end of curve staging 30 0-999

Flow GPM Flow rate of constant speed pump supplying variable 0 0-999

offset speed pump; input only required on series pumping

applications. The flow rate of the constant speed pump is

deducted from the total system flow rate in order to pro-

vide end of curve protection for the variable speed pump

Table 10: PV EOC Stage Variables

Variable Unit Description Default Value Range Field Value

Stg Spd % Maximum speed at which the lead pump will operate 95 0-100

prior to starting a lag pump

Stg Proof s Proof timer prior to starting lag pump 30 0-999

Timer

Stab s Staging stabilization time, delay prior to calculating 60 0-999

Timer destage value

Table 8: PV Stage Variables

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 53 54

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