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Fisher & Paykel Product Help

Gas Connection

Information on connecting the gas.

WARNING! 

Explosion Hazard.png

Explosion Hazard

Use a new CSA or UL approved gas supply line.

Install a shut-off valve.

Securely tighten all gas connections.

If connected to LP, have a qualified person make sure gas pressure does not exceed 14" water column.

Examples of a qualified person include licensed heating personnel, authorized gas company personnel, and authorized service personnel.

Failure to do so can result in death, explosion, or fire.

All gas connections must be made according to national and local codes. This gas supply (service) line must be the same size or greater than the inlet line of the appliance. Sealant on all pipe joints must be resistant to the action of LP/Propane gas.

The range is equipped for the use with NATURAL gas. It is design-certified by CSA International for NATURAL and L.P. gases with appropriate conversion.

The model/serial rating plate, located below the bottom drawer, has information on the type of gas that can be used. If this information does not agree with the type of gas available, check with the local gas supplier. See page from 16 to 19 for L.P. gas conversion instructions.

Manual Shut-off Valve (fig: 2.1)

A manual shut-off valve must be installed in an accessible location in the gas line external to the appliance for the purpose of turning on or shutting off gas to the appliance (In Massachusetts such shutoff devices should be approved by the Board of State Examiners of Plumbers & Gas Fitters).
This valve should be located in the same room as the range and should be in a location that allows ease of opening and closing (in a position where it can be reached quickly in the event of an emergency).
Do not block access to the shutoff valve. The valve is for turning on or shutting off gas to the appliance.


Screen Shot 2018-01-08 at 1.22.02 PM.png
Fig. 2.1

Pressure Regulator

a. All heavy duty, commercial type cooking equipment must have a pressure regulator on the incoming service line for safe and efficient operation, since service pressure may fluctuate with local demand.
Before installing the regulator mount the 1/2” NPT (conical) male connector to the regulator (see picture 2.2).
Gasket supplied has to be placed between 1/2” NPT (conical) connector/extension pipe male pipe fitting (see picture 2.3).
The regulator supplied with this range must be installed before any gas connections are made.
Use supplied pressure regulator only.

Pressure Regulator Installation

STEP 1

Mount the 1/2” NPT (conical) male connector to the pressure regulator and tighten by using a wrench.
Do not over tighten the connector.
Over tightening may crack the regulator.


Screen Shot 2018-01-08 at 1.25.12 PM.png
Fig. 2.2

STEP 2

Assemble the 1/2” NPT connector + pressure regulator group to the extension pipe interposing the gasket supplied. The regulator cover must be oriented toward the front side of the range.

 

Use two wrenches to tighten the connection.

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Fig. 2.3

Gas Connection Specification

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Check the correct positioning of the gas regulator.
The arrow on the back of the gas regulator must be
oriented toward the connector.

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Fig. 2.5

  1. Any conversion required must be performed by your dealer or a qualified licensed technician or gas service company. Please provide the service person with this manual before work is started on the range. (Gas conversions are the responsibility of the dealer or end user.)

  2. This range can be used with NATURAL or LP/PROPANE gas. It is shipped from the factory adjusted for use with NATURAL gas.

  3. Manifold pressure should be checked with a manometer and by operating as below detailed:

    • Remove the orifice from the rear left (or rear right) burner and mount the proper test point adapter which is available from the After-Sales Service (see side figure and the “OPERATIONS TO BE PERFORMED WHEN SUBSTITUTING THE ORIFICES” chapter).

    • Turn the rear left (or rear right) burner control knob to the maximum position.

    • Press the knob and keeping it pressed check the manifold pressure with a manometer; NATURAL gas requires 4.0” W.C.P. and LP/PROPANE requires 11.0” W.C.P.

    • Incoming line pressure upstream from the regulator must be 1” W.C.P. higher than the manifold pressure in order to check the regulator.

    • The regulator used on this range can withstand a maximum input pressure of 1/2 PSI (14.0” W.C.P). If the line pressure is in excess of that amount, a step down regulator will be required.

  4. The appliance, its individual shut-off valve, and pressure regulator must be disconnected from the gas supply piping system during any pressure testing of that system at pressures in excess of 1/2 PSI (3.5 kPa).

  5. The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressure equal to or less than 1/2 PSI (3.5 kPa).

 

Flexible Connections

If local codes permit, CSA or UL design-certified, flexible metal appliance connector is recommended for connecting this range to the gas supply line. Do Not kink or damage the flexible connector when moving the range. The pressure regulator has 1/2” NPT female pipe threads.You will need to determine the fittings required, depending on the size of your gas supply line, flexible metal connector and shutoff valve.

Rigid Pipe Connections

If rigid pipe is used as a gas supply line, a combination of pipe fittings must be used to obtain an in-line connection to the range. All strains must be removed from the supply and fuel lines so the range will be level and in line.

  • Use joint compounds and gaskets that are resistant to action of natural or propane gas on all male pipe threads.
  • Do not over tighten gas fitting when attaching to the pressure regulator. Over tightening may crack the regulator.

Leak Testing

Leak testing of the appliance shall be conducted as follows:

  • After final gas connection is made, turn on manual gas valve and test all connections in gas supply piping and appliance for gas leaks with a soapy water solution. During this test all appliance gas valves have to be closed.
  • In order to avoid property damage or serious personal injury, never use a Iighted match. If a leak is present, tighten joint or unscrew, apply more joint compound, tighten again and retest connection for leak.

Conversion to LP/Propane Gas (or conversion back to the original gas - Natural Gas)

Every range is provided with a set of orifices for the various types of gas.
Select the orifices to be replaced according to the “ORIFICES TABLE”.
The nozzle diameters, expressed in hundredths of a millimetre, are marked on the body of each orifice.

Save the orifices removed from the appliance for future use.

Setting the pressure regulator

The pressure regulator is accessible by removing the warmer drawer; the pressure regulator is positioned on the rear right side of the range ( fig. 2.9).

To remove the warming drawer:

  1. Open the drawer completely ( fig. 2.6)
  2. Move down the lever of left guide ( fig. 2.7) and up the lever of right guide ( fig. 2.8).
  3. Remove the drawer holding the levers in the same position ( fig. 2.6).

Screen Shot 2018-01-08 at 1.44.16 PM.png

To set the pressure regulator (fig. 2.9):

  1. Unscrew the regulator cover.
  2. Unscrew the “A” component, reverse and screw it according to the LP/PROPANE (or NATURAL GAS) regulation.
to set the pressure regulator fig2.9.PNG

Fitting the warming drawer (fig. 2.10):

  1. Insert the drawer guides into the range guides ( g. 2.10).
  2. Gently close the drawer completely; the safety catches will automatically hook into place.

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Orifices Table

  Nominal Power Reduced  LP/PROPANE
11” W.C.P.
NATURAL GAS
4” W.C.P.
BURNERS BTU/hr BTU/hr Ø orifice
[1/100 mm]
Ø orifice
[1/100 mm]
Semirapid (SR) 8000 1500 85 139
Dual (D) Inner crown 2100 1000 42 (*) 70 (*)
Inner & outer crown 17000 6500 115 (#) 200 (#)

(*) inner crown (“J2” in figure 2.12)
(#) outer crown (“J3” in figure 2.12)

Operations to be performed when substituting the orifices

  • Remove the pan supports, the burner caps and the flame spreaders.
  • Dual burner only ( fig. 2.12): Unscrew the no.3 fixing screws “A” and remove the inner crown flame spreader “B”; then unscrew the no.2 fixing screws “C” and remove the cover plate “D”.
  • Using a wrench substitute the nozzle orifices “J1”, “J2” and “J3” ( figs. 2.11, 2.12) with those most suitable for the kind of gas for which it is to be used.
  • Dual burner only ( fig. 2.12): Refit the cover plate “D” and screw the no.2 fixing screws “C”; then refit the inner crown flame spreader “B” and screw the no.3 fixing screws “A
  • Refit the flame spreaders, the burner caps and the pan supports.

The burner are conceived in such a way so as not to require the regulation of the primary air.

Setting the burner minimum

When switching from one type of gas to another, the minimum ow rate must also be correct: the flame should not go out even when passing suddenly from maximum to minimum flame.
To regulate the flame ( fig. 2.13) follow the instructions below:

Semirapid burner

  • Light the burner.

  • Set the gas valve to position (minimum rate).

  • Remove the knob.

  • With a thin screwdriver, turn the regulation screw “R1” until adjustment is correct.

Inside crown of DUAL burner

  • Light the DUAL burner.

  • Set the gas valve to position Screen Shot 2018-01-08 at 2.07.52 PM.png (minimum rate of inner crown).

  • Remove the knob

  • With a thin screwdriver, turn the regulation screw “R2” until adjustment is correct.

Outside crown of DUAL burner

  • Light the DUAL burner.

  • Set the gas valve to position Screen Shot 2018-01-08 at 2.08.23 PM.png (minimum rate of inner and outer crowns).

  • Remove the knob. 
  • With a thin screwdriver, turn the regulation screw “R3” until adjustment is correct.
For LP/PROPANE gas, tighten the adjustment screws completely.

After regulation repeat the operations indicated in paragraph "2. PRESSURE REGULATOR" at page 12 and 15
If the range has been disconnected and then connected again to the gas supply line repeat the operations indicated in paragraph “5. LEAK TESTING” at page 15.

  • After conversion to LP/PROPANE gas has been carried out affix near the data plate the conversion label supplied and also affix a conversion label at page 3 of this instruction manual
  • After conversion back to the original gas (NATURAL GAS) has been carried out remove, near the data plate and at page 3 of this instruction manual, the LP/PROPANE conversion labels. Save the labels removed for future use

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