ICM Controls ICM325HNV User Manual

Installation, Operation & Application Guide
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ICM325HNV
High Voltage Head Pressure Control with
Optional Heat Pump Override
Temperature sensitive control regulates head pressure
Caution!
Installation of the ICM325HNV shall be performed by trained technicians only. Adhere to all local and national electric codes.
Disconnect all power to the system before making any connections.
•Line voltage:120-600VAC
•Control voltage:18-30VAC
•Frequency:50-60Hz
•Operating temperature:-40ºFto+176ºF(-40°Cto+75°C)
•Sensors:10Kohmsat77°F(25°C)
•Heat pump override:24VACN.C.orN.O.
 Note:A maximum of three sensors can be connected to the control.
•Weight:12ounces(341grams)
 Note:The ICM325HNV should be applied to motors and equipment that have been designated by their respective manufacturers as capable of being speed controlled.
• Mounting:
 –Surfacemountusing(4)#8screws
 –TheICM325HNVshouldbesurfacemountedtoacleanmetalorotherthermallyconductivesurfaceformaximumheatdissipation
 –ItisrecommendedthattheICM325HNVbemountedawayfromthecondenserexhaustairinordertomaintainloweroperatingtemperatures
Specifications
Wiring Diagrams
Connections for Heat Pump System at 480 VAC
1.Removepowerfromsystem.
2.FieldinstallawirefromLine 1wiretoLine 1terminal.
3.CutLine 2wire;afxthecommonfromthedefrost
board’sfanrelaytotheMotor 2terminalandtheLine
fromthecontactortotheLine 2terminal.
4.Make24VAC,probeandHPconnections.
5.Verifywiringiscorrect.
6.Powerupsystemandcheckoperation.
Line
1
480 VAC
Line
2
Motor
2
480 VAC
Field
Installed
Wire
PSC
Fan
Motor
Run
Capacitor
Fan
Relay
COM NC
Defrost Board
Connections for ICM325HNV at 120/208/240 VAC
1.Removepowerfromsystem.
2.FieldinstallawirefromLine 1wiretoLine 1terminal.
3.CutLine 2wire;afxmotorsidetoMotor 2terminal
andlinesidetoLine 2terminal.
4.Make24VACandtemperatureprobeconnections.
5.Verifywiringiscorrect.
6.Powerupsystemandcheckoperation.
Typical
condenser fan
PSC
Fan
Motor
Run
Capacitor
120/208/240
VAC
PSC
Fan
Motor
Run
Capacitor
Field
Installed
Wire
Line
1
120/240
VAC
Line
2
Motor
2
120/208/240
VAC
Field
Installed
Wire
PSC
Fan
Motor
Run
Capacitor
Fan
Relay
COM NC
Defrost Board
120/208/240
VAC
Line
1
120/240
VAC
Line
2
Motor
2
Connections for Heat Pump System at 120/208/240 VAC
1.Removepowerfromsystem.
2.FieldinstallawirefromLine 1wiretoLine 1terminal.
3.CutLine 2wire;afxthecommonfromthedefrost
board’sfanrelaytotheMotor 2terminalandtheLine
fromthecontactortotheLine 2terminal.
4.Make24VAC,probeandHPconnections.
5.Verifywiringiscorrect.
6.Powerupsystemandcheckoperation.
Connections for Air Conditioning Only
1.For non-heat pump applications,
theheatpumpselectjumpermust
beintheDefault(N.O.)position,
andtheHPterminalsmustbeleft
unconnected.
2.SettheCutout Speedandthe
Hard Start Timetotheappropriate
positionsforthetypeofmotoryou
have(seeotherside).
TemperatureProbe24VAC
Additional
Probes
ProbeS1
HP
HeatPump
SelectJump-
erDefault
Position
Connecting the Probe
Example
1.Installthetemperatureprobeseveralbendsintothecondenser.Itcanbe
attachedtotheU-bendorplacedbetweenthensintheupper1/3ofthe
condenser(seeothersideformoreinformation).
 Note: Theresponseofthesystemcanbenetunedbyrepositioningthe
probe.Placetheprobeonthecondenserwhereitis100°Fwhen
pressuresarecorrectforbestresponse.
2. ConnectthetwowiresfromthesensortotheterminalblockwhereitismarkedPROBE S1.If
additionalprobesarenecessaryformultiplerefrigerantcircuits,theymaybeattachedtoterminals
markedPROBE S2andPROBE S3.
 Note: Thecontrolwillrespondtotheprobethatsensesthehighesttemperature.
Connections for ICM325HNV at 480 VAC
1.Removepowerfromsystem.
2.FieldinstallawirefromLine 1wiretoLine 1terminal.
3.CutLine 2wire;afxmotorsidetoMotor 2terminal
andlinesidetoLine 2terminal.
4.Make24VACandtemperatureprobeconnections.
5.Verifywiringiscorrect.
6.Powerupsystemandcheckoperation.
Line
1
480 VAC
Line
2
Motor
2
480 VAC
Field
Installed
Wire
PSC
Fan
Motor
Run
Capacitor
Typical
condenser fan
PSC
Fan
Motor
Run
Capacitor

ICM Controls ICM325HNV Specifications

General

Brand	ICM Controls
Model	ICM325HNV
Category	Controller
Language	English