Gas-Fired Products N7/L7, 100, 40, 150, 175, 200 manual Electrical Connections, GAS Control Valve

Page 32

HI-LO

Adjustment Screws

(use 3/32” Hex

Allen Wrench)

Regulator

Vent Cover

Electric

Solenoid

Coil

LO

 

HI

 

INLET

 

 

ON

1/8” NPT

 

Inlet Pressure

OFF

Tap with 3/16” Hex

Allen Wrench Plug

 

TWO-STAGE

Gas Control

GAS CONTROL VALVE

Knob

CAUTION

Never jumper these terminals. This shorts out valve coil and may burn out heat anticipator in thermostat.

Wiring LO

Terminals (3) C

HI

Ground

Terminals (2)

OUTLET

1/8”NPT

Outlet Pressure Tap with 3/16” Hex Allen Wrench Plug

15.0) ELECTRICAL CONNECTIONS

ELECTRIC SHOCK HAZARD

Disconnect electrical power and gas supply before servicing.

This appliance must be connected to a properly grounded electrical source.

Failure to do so may result in death or serious injury.

1.All electric wiring shall conform to the latest edition of the National Electrical Code (ANSI/NFPA No. 70), or the code legally authorized in the locality where the installation is made.

2.The unit must be electrically grounded in accordance with the National Electrical Code (ANSI/NFPA No. 70-latest edition). In Canada, refer to current standard C22.1 Canadian Electrical Code Part 1.

3.The wiring providing power to the heater shall be connected to a permanently live electrical circuit, one that is not controlled by a light switch.

4.The power supply to the unit should be protected with a fused disconnect switch or circuit breaker. A service switch, as required by local codes, shall be located in the vicinity of the heater (check local codes for allowable distances) and should be identified as Heater Service Switch. All electrical wiring must be located in accordance with the required Clearances to Combustibles below the heater as listed on the nameplate on the heater.

5.Connection to the power supply is provided by a 18/3 gauge x 72” long cord with grounded 3 prong plug.

6.The post purge function of the burner (fan on for 30 seconds after the call for heat) will only be enabled when using a 24 Volt thermostat. With the line Voltage thermostat post purge operation is disabled.

2-Stage Thermostat

24V 2 stage thermostat connection

 

 

 

 

 

 

 

 

HI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LO

 

 

 

 

 

 

43269060 rev A

The two stage heater terminals must

72” grounded 3 prong

only be supplied with 24V

electrical cord

Liquid tight fitting must be tight to prevent ingress of moisture

Form #43343530

 

July 08

–31–

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Page 31 Page 33
Contents Installation and Operation Instructions Table of Contents Safety Installer ResponsibilityInstallation Requirements General InformationFor Canada only High AltitudeMinimum Clearances to Combustibles Minimum Clearances to CombustiblesSpecifications Packing ListBurner Package Numbers Natural GASPTU 40-200 Body Package Descriptions Reflector, 4’ 11 ½’ Accessories End Reflector Accessory PackageExhaust Hood Package Typical Layouts PTU / PTS Series Emitter Length Body Length ModelTypical Assembly Layout Poisonous GAS and Soot HazardPTS Series Dimensions PTU Series Heater Assembly Joining of Tube SectionsTypical Assembly Overview PTU 40FT Shown Typical Suspension Methods Suspension HazardAssembly of Tube Sections CUT HazardAssembly of Extension Section MIN 8’ MAX 10’ Between HangersInserting Turbulators Adding Reflectors Ft. Turbulator SectionsAdding Optional 90º Elbow PTS only Adding Optional Corner Reflector PTS onlyAdding 180U-Bend PTU only Adding Optional U-BEND Reflector PTU onlyAttaching Burner BOX Assembly Connecting the Tiss System InstructionsEnd View Angle Mounted Heaters only GAS Connections and Regulations Do not USE AN Open Flame of ANY Kind to Test for LeaksKEY Dimensions and Components of the GAS Connections Manifold PRESSURE- Combination GAS Valve is Factory SET Instructions for Pressure Test Gauge ConnectionSupply Pressure Electrical Connections GAS Control ValveIgnition Module Terminal Designations 24VAC/R TH/WPS/W GNDLOW Voltage 24V Thermostat Connections Single Heater LOW Voltage 24V Thermostat Connections Multiple HeatersVenting Single Heater Venting Vertical Through the RoofSingle Heater Venting Horizontal Through Sidewall #10 Self-Drill Vent Pipe Screws Common Vent Diameter Indirect Venting Unvented HeatersAIR for Combustion Direct Outside AIR for CombustionLighting and Shutdown Instructions Side ViewSequence of Operation Burner Component Locations Cleaning and Maintenance Electric Shock & Explosion HazardTroubleshooting Guide 22.0Form #43343530 JJuly Replace air switch Restart Troubleshooting Yes Replacing Parts Removal of Main Burner and ElectrodesRemoval of GAS Valve and Manifold Assembly AIR Switch Pressure CheckTo Check Flame Sensor Circuit Ignition Module DiagnosticsIgnition System Checks Installation Data Replacement Parts Guide Burner BOXLabels/Manual 22c Body Components Description
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