R7428A1006 Introductions-Apr6 (2) [Read-Only]file.yizimg.com/341753/2010010811232080.pdf ·...

R7428A1006R7428A1006R7428A1006

Constant RHConstant RH--Temp Controller for AHU application!! Temp Controller for AHU application!!

Apr. 2005 22-2Honeywell ConfidentialR7428A1006R7428A1006

InnovationInnovation

• Constant RH-Temp control

• Large LCD screen with backlight

• Easy installation & commission

• Reasonable cost

•• Constant RHConstant RH--Temp controlTemp control

•• Large LCD screen Large LCD screen with backlightwith backlight

•• Easy installation Easy installation & commission& commission

•• Reasonable costReasonable cost

R7428AR7428A

• Temp or RH control only

• Small LCD• Non-user-friendly

interface• Higher cost

•• Temp or RH Temp or RH control onlycontrol only

•• Small LCDSmall LCD•• NonNon--useruser--friendly friendly

interfaceinterface•• Higher costHigher cost

R7426C+DR7426C+D

• Need tool for programming

• Cost ineffective• LCD without

backlight

•• Need tool for Need tool for programmingprogramming

•• Cost ineffectiveCost ineffective•• LCD without LCD without

backlightbacklight

XL20XL20

Integrated functionality + simplified design = R7428A1006 Integrated functionality + simplified design = R7428A1006


Product StrategyProduct Strategy

PricePrice

FeatureFeature

R7426C+DR7426C+D

R7428AR7428A

High End• Temperature and Humidity control• Sequence control of mixed air

damper• Economizer mixed air damper

control• Outside temperature compensated

control• Energy recovery & cascade

sequence control

High EndHigh End•• Temperature and Humidity controlTemperature and Humidity control•• Sequence control of mixed air Sequence control of mixed air

damperdamper•• Economizer mixed air damper Economizer mixed air damper

controlcontrol•• Outside temperature compensated Outside temperature compensated

controlcontrol•• Energy recovery & cascade Energy recovery & cascade

sequence controlsequence control

Typical ApplicationTypical Application

Popular• Sequence control for both Temp &

RH• Heating controlled by SCR or

binary

PopularPopular•• Sequence control for both Temp & Sequence control for both Temp &

RHRH•• Heating controlled by SCR or Heating controlled by SCR or

binarybinary

Mix %Mix %

20%20%

80%80%

XL20XL20


User InterfaceUser Interface

Large LCD Screen with Backlight

Large LCD Screen with Backlight

Function Selection Function Selection

Configuration Configuration

Humidity Setting Button

Humidity Setting Button

Temperature Setting Button

Temperature Setting Button


User InterfaceUser Interface


Key FeaturesKey Features

• Cost effective solution for constant Temperature & Relative Humidity control.

• Large LCD screen with back-light provides user-friendly MMI.• Standard DIN rail or control panel mounting compatible.• Wide working range: 0~50°C, 5~95%,

setting range: 0~100°C, 40~99%.• High resolution provides accurate control: 0.1°C for Temp & 0.1%

for RH.• Temp & RH value setting, provides direct digital control.• Preserve setting value while power failure.• PID (Proportional Integral Deviation) control.• Power Rating: AC 24V, 50~60Hz.


Key FeaturesKey Features

• Sensor failure indication.• Selectable direct/reverse acting analog output.• Protection Standard: IP30 (Control Panel)

IP55 (Rail Mounting)• Meet CE requirement.• Pre-configured application, no programming needed.• I/O: AO x 3, AI x 3 (4~20mA or 0~10V/NTC20K selectable),

DO x 3, DI x 3.• Provide dual display for both Temp & RH.


ApplicationsApplications

• Targeting on AHU applications which require accurate RH & Temp control, includes:

– Commercial: Office Building, Hospital, Museum.– Industry: Pharmaceutical Factory.– Hi-Tech: Semiconductor, TFT LCD, Chip, DRAM.


LCD ScreenLCD Screen--Temperature AreaTemperature Area

Cooling Valve

Cooling Cooling ValveValve

SCR Heating Valve

SCR Heating Valve

Present Value

Present Present ValueValue

Setting Value

Setting Value

Outside Air TemperatureOutside Air Outside Air

TemperatureTemperature TemperatureTemperatureTemperature

Manual Mode

Manual Manual ModeMode


LCD ScreenLCD Screen--Humidity AreaHumidity Area

HumidityHumidityHumidity

HumidifierHumidifierHumidifier

Present ValuePresent ValuePresent Value Setting ValueSetting ValueSetting Value


LCD ScreenLCD Screen--Status AreaStatus Area

DI for Remote Control

DI for Remote DI for Remote ControlControl

Fan StatusFan StatusFan Status

Alarm StatusAlarm StatusAlarm Status

Binary Sequence Indicator

Binary Binary Sequence Sequence IndicatorIndicator

Fan StartFan Fan StartStart

Manual Mode

Indication

Manual Manual ModeMode

IndicationIndication


LCD ScreenLCD Screen--Setting Status AreaSetting Status Area--11

Zero EnergyBand

Zero Zero EnergyEnergyBandBand

Proportional Parameter

Setting

Proportional Proportional Parameter Parameter

SettingSetting

Deviation Parameter

Setting

Deviation Deviation Parameter Parameter

SettingSetting

Temp/RH Offset setting

Temp/RH Temp/RH Offset Offset settingsetting

Integral Parameter

Setting

Integral Integral Parameter Parameter

SettingSetting

Q1 & Q2 Control Interval

Q1 & Q2 Control Q1 & Q2 Control IntervalInterval

Manual Mode Setting

Manual Mode Manual Mode SettingSetting



Output Mode Setting (CV, SCR, RH%, Q1Q2)Output Mode Setting Output Mode Setting

(CV, SCR, RH%, Q1Q2)(CV, SCR, RH%, Q1Q2)DPS interlock with (CV, SCR, RH%, Q1Q2)

DPS interlock with DPS interlock with (CV, SCR, RH%, Q1Q2)(CV, SCR, RH%, Q1Q2)



Hi-LowSelectorHiHi--LowLow

SelectorSelector

Power Failure Mode setting

Power Failure Power Failure Mode settingMode setting

Compensation Changeover

Point

Compensation Compensation Changeover Changeover

PointPointWinter

CompensationWinter Winter

CompensationCompensation4mA=

(-20~+20℃)4mA=4mA=

((--20~+2020~+20℃℃))

Sampling Time

Setting

Sampling Sampling Time Time

SettingSetting

Remote Disable/Enable

Remote Remote Disable/EnableDisable/Enable

20mA=(+50~+120℃)

20mA=20mA=(+50~+120(+50~+120℃℃))

Summer Compensation

Summer Summer CompensationCompensation


TerminalTerminal


Terminal LayoutTerminal Layout

AC 24V

AI

AI

AI

AI

AI

AO

AO

AO

DI

DI

DI

DO

Q1

Q1

AI

DPS/ST

REMOTEON/OFF

AlarmInput

FanStart

Heater

Heater

HumidityTransmitter

0~10V

Return Air TempSensor 4~20mA

Return Air TempSensor NTC20K

Outside Air TempSensor 4~20mA

Humidity Transmitter4~20mA

Outside Air TempSensor NTC20K

Cooling Valve4~20mA

Humidifier4~20mA

SCR Heater4~20mA


TerminalTerminal--AIAIHUM

0~10VOUT20K

RA20K

G

0~10VHumidity

Humidity Sensor• H7015A• H7015B1020

Humidity Sensor• H7015A• H7015B1020

OUTSIDEAIR

NTC20K Sensor• AF20

NTC20K Sensor• AF20

ReturnAIR

NTC20K Sensor• RF20• LF20• VF20

NTC20K Sensor• RF20• LF20• VF20

G G


TerminalTerminal--AIAI

HUM OUT RA

G G G

4~20mA INPUT

Temperature4~20mA Transmitter• T7506C1011-2• T7506C1037-2• T7506C1052-2

Temperature4~20mA Transmitter• T7506C1011-2• T7506C1037-2• T7506C1052-2

Temperature4~20mA Transmitter• T7506C1086-2• CHT3H1TLD

Temperature4~20mA Transmitter• T7506C1086-2• CHT3H1TLD

Relative Humidity4~20mA Transmitter• H7507A1000• H7507A1011• H7507A1027• CHT3H1TLD• H7625, H7635,

H7655

Relative Humidity4~20mA Transmitter• H7507A1000• H7507A1011• H7507A1027• CHT3H1TLD• H7625, H7635,

H7655

- +

-4~

20m

AH

umid

ity

4~20

mA

OU

TSID

E A

IR

DC 24VPower Supply

4~20mARETURN AIR

++ +

--


TerminalTerminal--AOAO

HUM OUT ROOM

G G G

4~20mA INPUT

CoolingValve

SCR

G G

4~20mA OUTPUT

CV SCR HV

Humidifier

• ML7420, ML7421+V5011P• ML7420, ML7421+V5011P


TerminalTerminal--DIDI

HUM OUT ROOM

G G G

4~20mA INPUT

G G

4~20mA OUTPUT

CV SCR HV

CONTACT INPUT

ALARMREM-OTE DPS

DPS IN

PUT

REM

OTE IN

PUT

ALA

RM

INPU

T

• DPS400• DPS400

• Manual Switch• Manual Switch

• DH100ACDCLP• L4064K

• DH100ACDCLP• L4064K


TerminalTerminal--DODOHUM

0~10VOUTRT

ROOMRT

G

24VAC FAN Q1 Q2

L1

L2

110V/220V(50/60Hz)

Q1

TR

24V AC

Q2

F

Power Supply

Power Supply


DimensionDimension

R7428A1006 Introductions-Apr6 (2) [Read-Only]file.yizimg.com/341753/2010010811232080.pdf ·...

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