Humidification - Carrier Weathermaster 48P030-100 Controls, Start-Up, Operation, Service, And Troubleshooting

There are three set point configurations:
O.C.MN — Econ OACFM DCV Min Flow
O.C.MX — Econ OACFM DCV Max Flow
O.C.DB — Econ OACFM MinPos Deadbd
When the outdoor air cfm sensor is enabled, the Economizer
Min.Position (Configuration
IAQ Demand Vent Min.Pos (Configuration
IAQ.M) will no longer be used. During vent periods, the control
modulates the damper to maintain the outdoor air intake quantity
between O.C.MX and O.C.MN. The indoor air quality algorithm
varies the cfm between these two values depending on Configura-
  
tion IAQ AQ.SP DAQ.L and the Configuration

AQ.SP DAQ.H set points and upon the relationship between the
IAQ and the outdoor air quality (OAQ).
The economizer's OA CFM Minimum Position Deadband
(O.C.DB) is the deadband range around the outdoor cfm control
point at where the damper control will stop, indicating the control
point has been reached. See the Economizer section on page 75.

Humidification

The P Series ComfortLink controls can control a field-supplied
and installed humidifier device. The ComfortLink controls pro-
vide two types of humidification control: A discrete stage control
(via a relay contact) and a proportional control type (communicat-
ing to a LEN actuator). The discrete stage control is used to con-
trol a single-stage humidifier, (typically a spray pump). The pro-
portional control type is typically used to control a proportional
steam valve serving a steam grid humidifier.
The ComfortLink controls must be equipped with a controls ex-
pansion module and an accessory space or return air relative hu-
midity sensor.
If a humidifier using a proportional steam valve is selected, the
Carrier actuator (Carrier Part No. HF23BJ050) must be adapted
to the humidifier manufacturer's steam valve. Contact Belimo
Aircontrols for information on actuator linkage adapter packages
ITEM
HUMD HUMIDITY CONFIGURATION
HM.CF Humidifier Control Cfg.
HM.SP Humidifier Setpoint
H.PID HUMIDIFIER PID CONFIGS
HM.TM Humidifier PID Run Rate
HM.P Humidifier Prop. Gain
HM.I Humidifier Integral Gain
HM.D Humidifier Deriv. Gain
ACT.C HUMIDIFIER ACTUATOR CFGS
SN.1 Humd Serial Number 1
SN.2 Humd Serial Number 2
SN.3 Humd Serial Number 3
SN.4 Humd Serial Number 4
C.A.LM Humd Ctrl Angle Lo Limit
ITEM
ConfigUNITSENSSRH.S
ConfigUNITSENSRRH.S
InputsREL.HRA.RH
InputsREL.HSP.RH
OutputsACTUHMD.P
OutputsACTUHMD.C
OutputsGEN.OHUM.R
  
IAQ DCV.C EC.MN) and the
 
IAQ DCV.C

Table 70 — Humidity Configuration
EXPANSION
Table 71 — Related Humidity Points
Space Air RH Sensor
Return Air RH Sensor
Return Air Rel. Humidity
Space Relative Humidity
Humidifier Act.Curr.Pos.
Humidifier Command Pos.
Humidifier Relay
required to mount the actuator on the specific brand and type of
steam valve mounted by the humidifier manufacturer.
The actuator address must be programmed into the ComfortLink
unit's humidifier actuator serial number variables.
SETTING UP THE SYSTEM
These humidity configuration are located in the local displays un-
 
der Configuration
shown in Table 71.
Humidifier Control Configuration (HM.CF)
The humidifier control can be set to the following configurations:
 
IAQ HM.CF = 0 — No humidity control.
HM.CF = 1 — Discrete control based on space relative
humidity.
HM.CF = 2 — Discrete control based on return air relative
humidity.
HM.CF = 3 — Analog control based on space relative
humidity.
HM.CF = 4 — Analog control based on return air relative
humidity.
Humidity Control Set Point (HM.SP)
The humidity control set point has a range of 0 to 100%.
Humidifier PID Run Rate (HM.TM)
This is the PID run time rate.
Humidifier Proportional Gain (HM.P)
This configuration is the PID Proportional Gain.
Humidifier Integral Gain (HM.I)
This configuration is the PID Integral Gain.
Humidifier Derivative Gain (HM.D)
This configuration is the PID Derivative Gain.
RANGE
0 to 4
0 to 100 %
10 to 120 sec
0 to 5
0 to 5
0 to 5
0 to 9999
0 to 6
0 to 9999
0 to 254
0 to 90
EXPANSION UNITS
%
%
%
%
91

HUMD. See Table 70. Related points are
UNITS CCN POINT
HUMD_CFG
HUSP
HUMDRATE
HUMID_PG
HUMID_IG
HUMID_DG
HUMD_SN1
HUMD_SN2
HUMD_SN3
HUMD_SN4
HUMDCALM
CCN POINT
SPRHSENS
RARHSENS
RARH forcible
SPRH forcible
HUMDRPOS
HUMDCPOS
HUMIDRLY
DEFAULT
0
40
30
1
0.3
0.3
0
0
0
0
85
WRITE STATUS