State Industries 705 Series 200, U287-084 installation manual Ladder Diagram, Hot

Page 37

Ladder Diagram

HOT

 

NEUTRAL

3A(FUSE)

FROST SENSING

 

SWITCH

 

ARRESTER

 

ANTI-FROST HEATER

 

 

VARISTOR

VARISTOR

 

 

 

GND

RELAY 1

IG IGNITION

 

E

SWITCHING

POWER SUPPLY

 

PG

 

DC170V

DC12V

 

 

 

DC12.6V

DC40V

 

 

 

DC5V

 

 

 

A

B

C SG

WATERFLOW

A

 

B

 

SENSOR

WATERFLOW

 

 

 

QS

 

 

 

SENSOR

 

 

 

 

CIRCUIT

 

 

 

WATERFLOW

A

SG

 

 

CONTROLDEVICE

WATERFLOW

 

 

 

M

 

 

 

CONTROLDEVICE

 

 

 

CIRCUIT

 

CPU

BY-PASSFLOW

A

SG

CONTROLDEVICE

BY-PASSFLOW

CENTRAL

 

M

PROCESSING

CONTROLDEVICE

UNIT

 

 

CIRCUIT

 

 

 

BY-PASS SERVOMODEL ONLY

SG

 

 

A

RELAY 1

RELAY

 

 

DRIVING

 

 

SV0

CIRCUIT

 

THERMALFUSE

SOLENOID

 

SV1

 

 

DRIVING

 

OVERHEAT

 

CIRCUIT

 

SV2

 

 

 

SWITCH

 

 

 

 

SV3

 

 

 

OUTGOING WATER

B

SG

 

THERMISTOR

 

 

 

 

HEAT EXCHANGER

 

 

 

THERMISTOR

THERMISTOR

 

 

CIRCUIT

 

 

AIR TEMPERATURE

 

 

 

THERMISTOR

 

 

SG

 

 

 

 

 

INDOOR MODEL ONLY

 

SG

 

 

 

 

 

 

D

A B C

MODULATING VALVEPOWER CONTROL CIRCUIT

SG

D E

FAN

CONTROL

CIRCUIT

PG

A

FLAME DETECTING CIRCUIT

SG

GND

A B

REMOTE CONTROLLER CIRCUIT

SG

MODULATING SOLENOID VALVE

POV

COMBUSTION FAN

FAN

FLAME ROD

FR

REMOTE CONTROLLER

305, 505, 705 Indoor Manual

37

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Contents ANS Z21.10.3 CSA Models 305 505 705Table of Contents Model 305 505 705 SpecificationsSafety Definitions Consumer Safety InformationSafety Behavior and Practices Safety Features Features Features Available on Temperature ControllersDescription of Operation Operating InstructionsTemperature Options Without a Temperature Controller Setting the TemperatureSetting Controller to Mute Temperature RangesModel Temperature Settings Available ºF Re-setting the Maximum TemperatureMaintenance Error Code Table Error CodesCode Fault Remedy Code Accessing Operating Information Trouble Shooting for Common IssuesWater Quality Water Heater Flushing the Heat Exchanger Error Code LC orGeneral Instructions Installation InstructionsAttachment of the Water Heater Clearances from ApplianceGas Piping Electrical ConnectionGeneral Instructions Pipe Sizing Procedure Example Pressure Relief Valve Water PipingFreeze Protection Water Heater Freeze Protection PipingQTY Recommended Piping for Basic InstallationFor this application Recommended Piping for Circulation SystemsFor this application Optional Piping for Circulation SystemsIntake / Exhaust Guidelines Venting InstructionsCondensate Maximum Vent Length Listed and Tested Vent Products for the 305 and 505 Models Venting ProductsListed and Tested Vent Products for the 705 Model Manufacturer Product PartsFlue Terminal Clearances ANS Z21.10.3 CSA Vent Terminal Area Where Terminal is not PermitttedInside Corner Additional Clearances Vent TerminalFlue Installation for the 305 and 505 Models Air Intake Assembly Flue Installation for the 705 ModelExhaust Pipe Assembly Venting Clearances to CombustiblesVertical Terminations Horizontal with Concentric TerminationConnecting Multiple Water Heaters High Altitude InstallationsNumber of Connected Water Heaters Accessories Necessary GuidelinesConfigurations Temperature Controller InstallationLocation Cable Lengths and SizeOutlineofofControllRem ter Mounting the ControllerOperating Instructions For Your Safety Read Before OperatingPressure Drop Curve Technical DataOutlet Flow Data Replacement Temperature SettingSpace Heating Pumps505 Models DimensionsHOT Ladder DiagramWhat is covered? WarrantyWhat will be done? What is not covered? How do I get service?Limitation on implied warranties U287-084
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