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

Ladder Diagram

HOT		NEUTRAL
3A(FUSE)	FROST SENSING
3A(FUSE)	SWITCH
ARRESTER		ANTI-FROST HEATER
		ANTI-FROST HEATER
VARISTOR	VARISTOR
VARISTOR
GND	RELAY 1	IG IGNITION
	RELAY 1	IG IGNITION

SWITCHING

POWER SUPPLY

	PG		DC170V	DC12V
			DC12.6V	DC40V
			DC5V
		A	B	C SG
WATERFLOW	A		B
SENSOR	WATERFLOW
QS	WATERFLOW
QS	SENSOR
	CIRCUIT
WATERFLOW	A	SG
CONTROLDEVICE	WATERFLOW
M	WATERFLOW
M	CONTROLDEVICE
	CIRCUIT		CPU
BY-PASSFLOW	A	SG	CPU
CONTROLDEVICE	BY-PASSFLOW		CENTRAL
M	BY-PASSFLOW		PROCESSING
M	CONTROLDEVICE		UNIT
	CIRCUIT
BY-PASS SERVOMODEL ONLY		SG
A	RELAY 1	RELAY
A	RELAY 1	DRIVING
	SV0	CIRCUIT
THERMALFUSE	SV0	SOLENOID
THERMALFUSE	SV1	SOLENOID
	SV1	DRIVING
OVERHEAT		CIRCUIT
OVERHEAT	SV2
SWITCH	SV2
	SV3
OUTGOING WATER		B	SG
THERMISTOR
HEAT EXCHANGER
THERMISTOR	THERMISTOR
	CIRCUIT
AIR TEMPERATURE
THERMISTOR			SG
			SG
INDOOR MODEL ONLY		SG
INDOOR MODEL ONLY

A B C

MODULATING VALVEPOWER CONTROL CIRCUIT

D E

FAN

CONTROL

CIRCUIT

FLAME DETECTING CIRCUIT

GND

A B

REMOTE CONTROLLER CIRCUIT

MODULATING SOLENOID VALVE

POV

COMBUSTION FAN

FAN

FLAME ROD

REMOTE CONTROLLER

305, 505, 705 Indoor Manual

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Image 37

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

Contents

ANS Z21.10.3 CSA Models 305 505 705 Table of Contents Model 305 505 705 Specifications Safety Definitions Consumer Safety InformationSafety Behavior and Practices Safety Features Features Features Available on Temperature ControllersDescription of Operation Operating Instructions Temperature Options Without a Temperature Controller Setting the Temperature Setting Controller to Mute Temperature RangesModel Temperature Settings Available ºF Re-setting the Maximum Temperature Maintenance 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 or General Instructions Installation Instructions Attachment of the Water Heater Clearances from Appliance Gas Piping Electrical ConnectionGeneral Instructions Pipe Sizing Procedure Example Pressure Relief Valve Water PipingFreeze Protection Water Heater Freeze Protection Piping QTY Recommended Piping for Basic Installation For this application Recommended Piping for Circulation Systems For this application Optional Piping for Circulation Systems Intake / 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 Parts Flue Terminal Clearances ANS Z21.10.3 CSA Vent Terminal Area Where Terminal is not Permittted Inside Corner Additional Clearances Vent Terminal Flue Installation for the 305 and 505 Models Air Intake Assembly Flue Installation for the 705 ModelExhaust Pipe Assembly Venting Clearances to Combustibles Vertical Terminations Horizontal with Concentric Termination Connecting Multiple Water Heaters High Altitude InstallationsNumber of Connected Water Heaters Accessories Necessary Guidelines Configurations Temperature Controller InstallationLocation Cable Lengths and Size OutlineofofControllRem ter Mounting the Controller Operating Instructions For Your Safety Read Before Operating Pressure Drop Curve Technical DataOutlet Flow Data Replacement Temperature SettingSpace Heating Pumps 505 Models Dimensions HOT Ladder Diagram What is covered? WarrantyWhat will be done? What is not covered? How do I get service?Limitation on implied warranties U287-084

Ladder Diagram

HOT

3A(FUSE)

DC5V

CPU