TOA Electronics 600 Millivolt Appliances SIT Systems, Pilot for SIT Millivolt Gas Valve

Page 27

Step 1. Turn off the gas supply to the appliance. Remove the front glass door/frame from the appliance. Access the control compartment.

Step 2. Carefully remove the logs. Exercise care so as not to break the logs.

Step 3. Locate the screws securing the burner (tray) to the appliance. Remove the burner and retain the securing screws.

Step 4. Millivolt Appliances - SIT Systems

a. Refer to Figure 62 and the instructions provided with the kit. Using a Torx T20, remove and discard the three pressure regulator mount- ing screws. Remove the pressure regulator, spring, poppet, diaphragm and bushing. Dis- card all removed components. Ensure the rubber gasket installed on the back of the replacement pressure regulator is properly positioned and install the new pressure regula- tor using the new screws supplied with the kit. Tighten screws to 25 In. lb. torque.

SIT Millivolt Gas Valve

Pressure

Regulator

b. Attach manometer to the manifold side

c. Refer to Figure 63 and remove the pilot

pressure test fitting and verify manifold pres-

hood assembly to access the hexed pilot ori-

sure reads 3.5 inches water column (0.87 kPa)

fice. Remove and replace the orifice with the

for natural gas, and 10.0 inches water column

one provided with the kit.

(2.49 kPa) for propane gas.

 

Pilot for Honeywell Millivolt Gas Valve

(Loosening of Hex Fitting For Orifice Strip Tab Positioning)

Hood Hood Alignment

7/16 in. Open End Wrench

 

Orifice Strip Tab

 

Take Care Not to Contact the Orifice Strip Tab

Figure 64

with the Hex Fitting Wrench - Distortion of the Tab

May Render the Pilot Inoperative.

 

 

 

 

 

Pilot for Honeywell Millivolt Gas Valve

 

Orifice Strip Tab Position Identification

 

For LP/Propane and Natural Gas

Remove

These

Components

LP/Propane Gas Position -

1/16 in. Hole, LP and

Red Color shown on tab

L

P

Natural Gas Position -

NAT shown on tab

NAT

Figure 62

Pilot for SIT Millivolt Gas Valve

Pilot

Orifice

Figure 63

Figure 65

Top View of Hex Fitting and Orifice Strip Tab

Pilot for Honeywell Millivolt Gas Valve Orifice Strip Tab Positioning

Pilot Hood Position After

Loosening Hex Fitting 1/4 Turn

 

Orifice Strip Tab

 

Push Tab to Set

 

Gas Type Usage

 

Note - Orifice Strip Tab May

 

Be Randomly Located On Any

Figure 66

Side Of The Hex Fitting

 

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

27

Image 27
Contents DT-600CEN DR-800CEP Retain These Instructions For Future ReferenceDT-500CEN DR-600CEP DR-500CEP DT-800CENTable of Contents All Models Cote DE Lappareil LocationMillivolt Models Electronic ModelsModel No Shelf Height inches mm Typical LocationsAppliance and Vent Clearances Area above it. See .Typical Installation Sequence Detailed Installation StepsVent Termination Clearances Exterior Horizontal Vent Termination Clearance Requirements DR-600mm 1019 1554 Fireplace Framing SpecificationsFraming Dimensions DR-800Fireplace Specifications Fireplace Framing SpecificationsFor D-500, DT-500 and DR- 500 Models only Combined TOP and Rear Vent Units Install the Vent SystemVertical Straight Installation Vent / Appliance Collar Connection Vertical Offset Installation10¹⁄₂ 17 ³⁄₄ 267 mm 451 mm Framing Dimensions for Roof Pitch12/12 10¹⁄₂ 267 mm 305 mmMaximum Table aVertical Vent FIGURES/TABLES Table B+ H 1 = 20 feet 6.2 m Max Table EMinimum +H 1 MaximumPlan the vent run Typical Horizontal Vent InstallationInstall firestop/spacer at ceiling Horizontal Outside Wall Termination SystemSV4.5HTR Install Firestop/Spacer at exterior wallInstall the desired termination ¹⁄₄ 32 mm as shown in FigureElbow Connection AT Appliance Table FTable G Horizontal Vent FIGURES/TABLESTable J SF4.5HFSF4.5BF 610 914 +H 1+H+H+H 1+H 2 = 40 feet 12.4 m Max +H 1+H 2= 20 feet 6.2 m MaxInstall the Outer Flex Pipe Route Flex VentAttach Adapter to Appliance Collar, or Secure Vent Sections Electronic Wiring See or Field WiringWiring Optional Forced AIR Blower KIT SIT and Honeywell Millivolt WiringConnecting GAS Line Wall Details Burner AdjustmentsHood Installation Finishing RequirementsCold Climate Insulation Installation Accessories GAS Conversion Kits .2 Installation CodeMillivolt Appliances SIT Systems Pilot for SIT Millivolt Gas ValveSide Of The Hex Fitting LHP

600 specifications

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