Removal of GAS Valve and Manifold Assembly | Gas-Fired Products 75

23.2) REMOVAL OF GAS VALVE AND MANIFOLD ASSEMBLY

Step 1

Step 3

Remove side access panel.

Open hinged access panel and disconnect wires from gas valve.

Step 2

Step 4

Loosen screws from manifold clamp and burner assembly.

Remove (6) screws from end panel. Rotate gas valve and manifold assembly slightly counter-clockwise and slide out from housing.

23.3) AIR SWITCH PRESSURE CHECK

Air	Connector
Switch	Tees

P1

+

	P2	P1	P2
	-	+
			-

	Temporary 1/4” ID Silicone /	-	+
	Temporary 1/4” ID Silicone /	0.65” WC
	plastic tubing for pressure	0.65” WC
	plastic tubing for pressure		Digital or Inclined
	test.		Digital or Inclined
			Water Manometer

scale 0-2”w.c.

Common “C”

Normally open “NO”

1.Open hinged access panel.

2.Add tubing to connect the air switch tubing P1 + and P2 - with the connector tees and the probes P1+ and P2+.

Form #43343530
July 08	–47–

Image 48

Gas-Fired Products N7/L7, 100, 40, 150, 175, 200 Removal of GAS Valve and Manifold Assembly, AIR Switch Pressure Check

Contents

Installation and Operation Instructions Table of Contents Safety Installer ResponsibilityInstallation Requirements General Information For Canada only High Altitude Minimum Clearances to Combustibles Minimum Clearances to Combustibles Specifications Packing List Burner Package Numbers Natural GAS PTU 40-200 Body Package Descriptions Reflector, 4’ 11 ½’ Accessories End Reflector Accessory Package Exhaust Hood Package Typical Layouts PTU / PTS Series Emitter Length Body Length Model Typical Assembly Layout Poisonous GAS and Soot Hazard PTS Series Dimensions PTU Series Heater Assembly Joining of Tube Sections Typical Assembly Overview PTU 40FT Shown Typical Suspension Methods Suspension Hazard Assembly of Tube Sections CUT Hazard Assembly of Extension Section MIN 8’ MAX 10’ Between Hangers Inserting Turbulators Adding Reflectors Ft. Turbulator Sections Adding Optional 90º Elbow PTS only Adding Optional Corner Reflector PTS only Adding 180U-Bend PTU only Adding Optional U-BEND Reflector PTU only Attaching Burner BOX Assembly Connecting the Tiss System Instructions End View Angle Mounted Heaters only GAS Connections and Regulations Do not USE AN Open Flame of ANY Kind to Test for Leaks KEY Dimensions and Components of the GAS Connections Instructions for Pressure Test Gauge Connection Supply PressureManifold PRESSURE- Combination GAS Valve is Factory SET Electrical Connections GAS Control Valve Ignition Module Terminal Designations 24VAC/R TH/WPS/W GND LOW Voltage 24V Thermostat Connections Single Heater LOW Voltage 24V Thermostat Connections Multiple Heaters Venting Single Heater Venting Vertical Through the Roof Single Heater Venting Horizontal Through Sidewall #10 Self-Drill Vent Pipe Screws Common Vent Diameter Indirect Venting Unvented Heaters AIR for Combustion Direct Outside AIR for Combustion Lighting and Shutdown Instructions Side View Sequence of Operation Burner Component Locations Cleaning and Maintenance Electric Shock & Explosion Hazard Troubleshooting Guide 22.0 Form #43343530 JJuly Replace air switch Restart Troubleshooting Yes Replacing Parts Removal of Main Burner and Electrodes Removal of GAS Valve and Manifold Assembly AIR Switch Pressure Check Ignition Module Diagnostics Ignition System ChecksTo Check Flame Sensor Circuit Installation Data Replacement Parts Guide Burner BOX Labels/Manual 22c Body Components Description