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Honeywell TRADELINE VR8204A, Manual, Page: 4 / 16

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Honeywell TRADELINE VR8204A Manual Download Page 4

68-0047—2

4

VR8204; VR4204

INSTALLATION

Installation

WHEN INSTALLING THIS PRODUCT…

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazardous condi-
tion.

2. Check the ratings given in the instructions and on the

product to make sure the product is suitable for your
application.

3. Installer must be a trained, experienced service tech-

nician.

4. After installation is complete, check out product

operation as provided in these instructions.

WARNING

FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Follow these warnings exactly:
1. Disconnect power supply before wiring to pre-

vent electrical shock or equipment damage.

2. To avoid dangerous accumulation of fuel gas,

turn off gas supply at the appliance service
valve before starting installation, and perform
Gas Leak Test after completion of installation.

3. Do not bend pilot tubing at gas control or pilot

burner after compression fitting has been tight-
ened, or gas leakage at the connection may
result.

4. Always install sediment trap in gas supply line

to prevent contamination of gas control.

5. Do not force the gas control knob. Use only

your hand to turn the gas control knob. Never
use any tools. If the gas control knob will not
operate by hand, the gas control should be
replaced by a qualified service technician. Force
or attempted repair may result in fire or explo-
sion.

CAUTION

Never apply a jumper across or short the valve
coil terminals. This may burn out the heat antici-
pator in the thermostat or damage the electronic
intermittent pilot (IP) module.

IMPORTANT: These gas controls are shipped with pro-

tective seals over inlet and outlet tappings. Do not
remove seals until ready to connect piping.

Follow the appliance manufacturer instructions if avail-

able; otherwise, use the instructions provided on the fol-
lowing pages.

CONVERTING BETWEEN NATURAL AND LP GAS

WARNING

FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
1. Do not use a gas control set for natural gas on

an LP gas system or a gas control set for LP gas
on a natural gas system.

2. When making conversion, main pilot burner

orifices must be changed to meet appliance
manufacturer specifications.

Refer to appliance manufacturer instructions for orifice

specifications and changeover procedure. Gas controls are
factory-set for natural (and manufactured) or LP gas. Do
not attempt to use a control set for natural (manufactured)
gas on LP gas, or a control set for LP on natural (manufac-
tured) gas.

Gas controls with standard or slow opening regulators

can be converted from one gas to the other with a conver-
sion kit (ordered separately). Order part no. 393691 to
convert from natural (manufactured) to LP gas; order part
no. 394588 to convert from LP to natural (manufactured)
gas. Controls with step-opening regulators cannot be con-
verted.

INSTALL ADAPTERS TO CONTROL

If adapters are to be installed on the gas control, mount

them as follows:

Flanges:

1. Choose the appropriate flange for your application.
2. Remove seal over control inlet or outlet.
3. Assure that the O-ring is fitted into the groove of the

flange. If the O-ring is not attached or missing, do not use
the flange.

4. With O-ring facing the control, align the screw holes

on the control with the holes in the flange. Insert and tighten
the screws provided with the flange. See Fig. 2. Tighten the
screws to 25 inch-pounds of torque to provide a gas-tight
seal.

Bushings:

1. Remove seal over control inlet or outlet.
2. Apply moderate amount of good quality pipe com-

pound to bushing, leaving two end threads bare. On LP
installations, use compound resistant to LP gas. Do not use
Teflon tape.

3. Insert bushing in control and thread pipe carefully

into bushing until tight.

Complete installation below for piping, installing con-

trol, connecting pilot tubing and wiring. Make certain the
leak test you perform on the control after completing the
installation includes leak testing the adapters and screws. If
you use a wrench on the valve after flanges are installed,
use the wrench only on the flange, not on the control. See
Fig. 6.

!

!

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Summary of Contents for TRADELINE VR8204A

Page 1: ...supply is interrupted Two position gas control knob has ON and OFF posi tions All adjustments and wiring connections are accessible from top of the control Compact size Straight throughbodypattern rightangleadaptersavail able for inlet and outlet 1 2 in inlet and 1 2 in outlet adapters available for 3 8 or 3 4 in Adjustable servo regulator effectively maintains almost constant gas output pressure ...

Page 2: ...dling and maximum replacement value TRADELINE model specifications are the same as those of standard models except as noted below TRADELINE MODEL AVAILABLE VR8204A Dual Automatic Combination Gas Control for Intermittent Pilot Systems Models for natural or LP gas TABLE 1 MODEL SPECIFICATIONS Model No Opening Charac Type Standard Factory Regulator Settings Optional Factory Regulator Settings Range o...

Page 3: ...G Can be mounted 0 to 90 degrees in any direction including vertically from the upright position of the gas control knob TEMPERATURE RATING VR8204A C H and VR4204H 0 F to 175 F 18 C to 79 C VR8204M P K and VR4204M P 40 F to 175 F 40 C to 79 C DIMENSIONS See Fig 1 APPROVALS AmericanGasAssociationdesigncertificate L2025006 CanadianGasAssociationdesigncertificate L2025006 Australian Gas Association d...

Page 4: ...MAGE SEVERE INJURY OR DEATH 1 Do not use a gas control set for natural gas on an LP gas system or a gas control set for LP gas on a natural gas system 2 When making conversion main pilot burner orifices must be changed to meet appliance manufacturer specifications Refer to appliance manufacturer instructions for orifice specifications and changeover procedure Gas controls are factory set for natur...

Page 5: ...inances or with the National Fuel Gas Code ANSI Z223 1 NFPA No 54 whichever applies Tubing installation must com ply with approved standards and practices 1 Use new properly reamed pipe free from chips If tubing is used make sure the ends are square deburred and clean All tubing bends must be smooth and without defor mation 2 Run pipe or tubing to the control If tubing is used obtain a tube to pip...

Page 6: ...IS USED M3079 Connect Pilot Gas Tubing 1 Cut tubing to desired length and bend as necessary for routing to pilot burner Do not make sharp bends or deform the tubing Do not bend tubing at control after compression nut has been tightened because this may result in gas leakage at the connection 2 Square off and remove burrs from end of tubing 3 Unscrew brass compression fitting from the pilot outlet ...

Page 7: ...ig 2 5 Adjust thermostat heat anticipator as instructed in the appliance manual i e usually 0 1A for VR4204 0 5A for VR8204 Fig 8 Wiring connections for 24 volt control in intermittent ignition system with S8600 MV MV PV PV GND BURNER 24V GND 24V SPARK S8600 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ALTERNATE LIMIT CONTROLLER LOCATION MAXIMUM WIRE LENGTH 3 ft 9 m CO...

Page 8: ... main burner in operation paint pipe joints including adapters and control inlet with rich soap and water solution 5 If another leak is detected tighten adapter screws joints and pipe connections 6 Replace part if leak cannot be stopped ADJUST PILOT FLAME The pilot flame should envelop 3 8 to 1 2 in 10 to 13 mm of the tip of the igniter sensor See Fig 10 To adjust pilot flame 1 Remove pilot adjust...

Page 9: ...ired outlet pressure or flow rate cannot be achieved to adjusting the gas control check gas control inlet pressure using a manometer at the gas control inlet pressure tap If inlet pressure is in the nominal range see Table 4A or 4B replace gas control Otherwise take the necessary steps to provide proper gas pressure on the control Slow opening and Step opening Pressure Regulators 1 Check the full ...

Page 10: ...stem should be replaced if It does not perform properly on checkout or trouble shooting The gas control knob is hard to turn The gas control is likely to have operated for more than 200 000 cycles Operation The VR8204 VR4204 gas controls provide ON OFF manual control of gas flow In the OFF position gas flow to both pilot and main burners is mechanically blocked In the ON position gas flows to the ...

Page 11: ...servo pressure regulator pro vides close control of outlet pressure even if inlet pressure and flow rate vary widely Any outlet pressure change is immediately reflected back to the pressure regulator dia phragm which repositions to change the flow rate through the regulator valve and thus through the automatic valve If outlet pressure begins to rise the pressure regulator diaphragm moves slightly ...

Page 12: ...outlet pressure as described for the standard regulator The step model requires approximately 60 seconds to reset once the main burner goes off If it is re energized within 60 seconds it may bypass or shorten the length of the low pressure step The burner may relight at the full flow rate WHEN THE CALL FOR HEAT ENDS When the call for heat ends the first automatic valve and the second automatic val...

Page 13: ...at the gas control knob is in the ON position 2 Adjust thermostat several degrees above room tem perature 3 Using ac voltmeter check for voltage at gas control If pilot lights measure across MV PV and MV If pilot does not light measure across MV PV and PV before safety lockout occurs 4 If voltage is incorrect or not present check control circuit for proper operation 5 If voltage is present replace...

Page 14: ...l application but the specific controls used and the procedures outlined by the manufac turer of your appliance may differ requiring special instructions TO TURN ON FURNACE STOP Read the safety information above 1 The lighting sequence on this appliance is automatic do not attempt to manually light the pilot 2 If the furnace does not come on when the thermostat is set several degrees above room te...

Page 15: ...15 68 0047 2 ...

Page 16: ...d Building Control Home and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A ...

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