Humidity Controller HUMx4a1

Configuration Parameters

ref Description default range
C1 SPRH Occupied setpoint 50 0 to 100 %RH
C2 SPMD Midpoint of setpoint adjustment range 50 10 to 90
C3 SPRG Range of setpoint adjustment about midpoint 20 0 to 40
C4 SPDB Setpoint deadband between humidification and de_humidification setpoints. If zero disables de-hum 10 0 to 20
C5 RDLY Recirculation delay , hours of continuous running before water recircualtion is allowed 2.0 0 to 10.0 hours
C6 HPRD heating valve period or minimum on time depends on driver type 1 to 60 secs/10
C7 HDLY Interlock delay

negative value delays fan (or pump) after heating starts

positive value cause run on of fan after heating shuts down

0 -30.0 to 30.0 minutes
C8 CPRD cooling valve period or minimum on time depends on driver type 1 to 60 secs/10
C9 CDLY Interlock delay

negative value delays fan (or pump) after cooling starts

positive value cause run on of fan after cooling shuts down

0 -30.0 to 30.0 minutes
C10 FPRD Fan or pump period, minimum time to change fan speed steps 12 (2 minutes) 1 to 60 secs/10
C11 MIND Minimum demand 4 0 to 100
C12 MANL Manual level , from Doorway 0 -100 to 100 %
C13 ALRM alarm mode

0 ignore alarms

1 report alarms

2 report alarms, shut down all outputs on alarm

3 report alarms, shut down all outputs on STOP alarm or sensor fail alarm

1 0 to 3
C14 ALST not used 0 0 to 1
C15 CMDE control mode

0 driver only mode

1 closed loop control of humidity

2 closed loop control of Humidity and DeHum (see Close Control for setup details)

0 0 to 2
C16 MXSH Maximum Supply Humidity setpoint 60 0 to 100 %RH
C17 MNSH Minimum Supply Humidity setpoint 40 0 to 100

%RH

C18 DHOF Supply DeHum setpoint offset 2.0 0 to 10.0

%RH

C19 TRGT Target mean value for Humidifier control minimum output 10 3 to 100 %
C20 ICGN InterCoil setpoint Gain (controls rate of adjustment) 10 1 to 255
C21 ICSP InterCoil temperature setpoint for monitoring 30 0 to 50.0 degC
C22 MXVA* Maximum voltage channel A 10.0 0.0 to 10.0 volt
C23 MNVA* Minimum voltage channel A 0.0 0.0 to 10.0 volt
C24 MXVB* Maximum voltage channel B 10.0 0.0 to 10.0 volt
C25 MNVB* Minimum voltage channel B 0.0 0.0 to 10.0 volt

*AOP models only

Monitoring Parameters

ref   Description default range
    INPUTS    
I2 (C31 OCC Occupied   0 to 1
I3 (C32) OSRT Optimum Start in operation   0 to 1
I8 (C37) XOCC External Occupation signal   0 to 1
I6 (C35) RLYA relay A   0 to 1
I7 (C36) RLYB relay B   0 to 1
i8 (C37) RLYC relay C   0 to 1
    SWITCHES    
W1

(C38)

AUTO Controller in automatic control    
W2

(C39)

OVRD Override

W1 and W2 used together with Doorway Auto/manual dialog box

   
W8

(C45)

CGST Configuration mode    
    SENSORS    
S1 (C50) RTRH Return Relative Humidity   0 to 100 %RH
S2 (C51) SLRH Supply Relative Humidity   0 to 100 %RH
S3 (C52) DMND Controller output   -100 to 100
S4 (C53) RTSP Return Humidity Setpoint   0 to 100 %RH
S5 (C54) SLSP Supply Humidity Setpoint   0 to 100 %RH
S6 (C55) HDMD Humidification output demand   0 to 100
S7 (C56) CDMD De-humudification output demand   0 to 100
S8 (C57) RDMD Recirculation demand   0 to 100
S9 (C58) HTIP Heat demand from AHU   0 to 100
S10 (C59) CLIP Cool demand from AHU   0 to 100
    KNOBS    
K1 (C60) SPRH Occupied setpoint 50 0 to 100 %RH

 

Control loop parameters

ref   Description default range
C69 RTLP selects parameters for Return RH loop and InterCoil loop 0 0 to 1
         
C70 UNDH sets very Low muzzy level for humidity loop 6.0 10 to 200
C71 OVRH sets very High muzzy level for humidity loop 6.0 10 to 200
C72 DBBH deadband sets limit for OK band for humidity loop 2.0 10 to 200
C73 RCGH max rate of change humidity   1 to 250
C74 GN H gain humidity 20 1 to 250
C75 UNDC sets very Low muzzy level for de-hum loop 6.0 10 to 200
C76 OVRC sets very High muzzy level for de-hum loop 6.0 10 to 200
C77 DBBC deadband sets limit for OK band for de-hum loop 2.0 10 to 200
C78 RCGC max rate of change de-hum   1 to 250
C79 GN C gain de-hum 20 1 to 250

Plot configuration

ref   Description default range
C130 PN A config variable number for channel A 51 0 to 255
C131 PT A period code for plot A 1 1 to 4
C132 PN B config variable number for channel B 52 0 to 255
C133 PT B period code for plot B 1 1 to 4

Driver Parameters

ref   Description default range
C150 HTYP Channel 1 (heating) driver type   0 to 5
C151 HSTG Channel 1 number of (heating) stages   0 to 8
C152 CTYP Channel 2 (cooling) driver type   0 to 5
C153 CSTG Channel 2 number of (cooling) stages   0 to 8
C154 FTYP fan/pump driver type   0 to 7
C155 FSTG number of fan stages   0 to 5