Honeywell TRADELINE VR8345M User manual

168-0160

VR8345M

Universal Electronic Ignition

Gas Control

68-0160

R.R. • 3-95 • ©Honeywell Inc. 1995

The VR8345M Universal Electronic Ignition

Gas Control is used in gas-fired appliances with

capacities up to 300 cu ft/hour at 1 inch wc pres-

sure drop [8.5 cu m/hour at 0.25 kPa] for natural

gas.TheVR8345Mwilloperatewithadirectspark

ignition (DSI), hot surface ignition (HSI) or inter-

mittent pilot ignition. The control includes a

manual valve, two automatic operators, a pres-

sure regulator, pilot adjustment, pilot plug, and

ignition adapter.

■Compatible with hot surface pilot, intermittent pilot

and direct spark ignition.

■Replaces virtually any IP, HSI or DSI gas control.

■For use with 24 Vac heating appliances that burn

natural or manufactured gas or liquiefied petroleum

(LP) gas. (Includes converter kit to adapt from natu-

ral gas to LP gas.)

■Compact to fit into tightly packed, high efficiency

heating equipment.

■Works with virtually all residential equipment and

all but the largest commercial equipment, with a

regulation capacity range of 30,000 to 415,000 Btuh

natural gas (48,600 to 672,300 LP gas).

■All adjustments and wiring connections accessible

from top of control.

■Straight-through body pattern.

■1/8 in. NPT inlet and outlet taps on top of gas

control aid adjustment of gas pressure in problem

installations.

■3/4 in. x 3/4 in. inlet and outlet fit easily on high

capacity systems plus others using 1/2 in. reducer

bushings.

■4.0in.swingradiusallowseasyrotationintoposition

inside the tightest furnace vestibules.

■Canbeinstalledat any angle includingverticallybe-

tween 0 and 90 degrees from the upright position.

■Clearly marked, keyed termianl block allows quick

attachment of wires and IP/DSI/HSI jumper. Keyed

jumper cannot be incorrectly inserted.

■Internal inlet screen blocks contaminants in gas line

from entering valve.

■-40°Fto+175°F(-40°Cto+79°C)temperaturerange

standard.

■Standard opening.

CONTENTS

Specifications .................................................2

Ordering Information.....................................2

Installation .....................................................3

Startup and Checkout ................................... 11

Maintenance .................................................13

Operation .....................................................14

Service ..........................................................17

68-0160 2

VR8345M

SPECIFICATIONS • ORDERING INFORMATION

Specifications

Ordering Information

When purchasing replacement and modernization products from your TRADELINE®wholesaler or distributor, refer to the TRADELINE®

Catalog or price sheets for complete ordering number, or specify—

1. Order number.

2. Ordered separately; pilot burner, igniter-sensor, transformer, limit controller, and thermostat or controller as required.

If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:

1. Your local Home and Building Control Sales Office (please check the white pages of your phone directory).

2. Home and Building Control Customer Logistics

Honeywell Inc., 1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P2V9. International Sales and

Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,

Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

IMPORTANT: Thespecifications given in this publication

do not include normal manufacturing tolerances.

Therefore, this unit may not exactly match the listed

specification. Also, this product is tested and cali-

brated under closely controlled conditions, and some

minor differences in performance can be expected if

those conditions are changed.

MODEL: VR8345M Universal Combination Gas Control.

AMBIENT TEMPERATURE RANGE: -40°to +175°F

(-40°to +79°C).

BODY PATTERN: Straight-through.

REGULATOR TYPE: Standard opening.

INLET X OUTLET SIZE: 3/4 x 3/4 inch.

IGNITION ADAPTER: Configures VR8345M to operate

with direct spark or hot surface ignition.

ELECTRICAL RATINGS:

Voltage and Frequency: 24 Vac, 60 Hz.

Current Draw: 0.7A.

CAPACITY: See Table 1.

UseconversionfactorsinTable2toconvertcapacitiesfor

other gases.

TABLE 1—GAS CAPACITY.

Size

(Inlet x Outlet)

Capacity (at 1 inch

wc pressure drop)aMinimum

Regulated Capacity

Maximum

Regulated Capacity

3/4 x 3/4 300 feet3/hr

(8.5 meter3/hr) 30 feet3/hr

(0.8 meter3/hr) 415 feet3/hr

(11.8 meter3/hr)

aCapacity based on 1000 Btu/cu ft, 0.64 specific gravity natural gas at 1 in. wc pressure drop (37.3 MJ/cu m, 0.64 specific

gravity natural gas at 0.25 kPa pressure drop).

TABLE2—GASCAPACITYCONVERSIONFACTORS.

Gas

Specific

Gravity

Multiply Listed

Capacity By

Manufactured 0.60 0.516

Mixed 0.70 0.765

Propane 1.53 1.620

APPROVALS:

AmericanGasAssociationDesignCertificate:L2025007.

CanadianGasAssociationDesignCertificate:L2025007.

PIPE ADAPTERS: Includes two 3/4 to 1/2 inch NPT bush-

ings and one 1/2 to 3/8 inch NPT bushing.

CROSS REFERENCE: See Table 3 for cross reference

information.

Fig. 1—VR8345 dimensions in in. (mm).

M7449

315

2 (69)

(25)

(13)

4 in. (102)

SWING

RADIUS

1/4 in. QUICK-

CONNECT

TERMINALS

1 (25)

2(13)

4 (104)

(36)

(99)

368-0160

VR8345M

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

productto makesurethe productissuitable foryourapplica-

tion.

3. The installer must be a trained, experienced service

technician.

4. Afterinstallation iscomplete, usethese instructionsto

check out product operation.

IMPORTANT: Itisrecommendedthatanapplianceshutoff

valve be installed upstream of the VR8435M.

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 completing installation.

3. Whenworking witha systemusing intermittent

pilot ignition, do not bend pilot tubing at gas

control or pilot burner after compression fitting

has been tightened because gas leakage at the

connection can result.

4. Always install sediment trap in gas supply line

to prevent contamination of gas control.

5. Donotforcethegascontrolknob.Useonlyyour

handtoturnthegas controlknob.Never useany

tools.Ifthegascontrolknobdoesnotoperateby

hand, call a qualified service technician to re-

place the gas control. Force or attempted repair

can result in fire or explosion.

TABLE 3—VR8345 REPLACES THESE GAS CONTROLS.

(Continued)

Replacement Gas Controls Universal

Old Model No. Manufacturer VR8200 VR8300 VR800 Replacement

36E36-304 DSI/HSI WHITE RODGERS VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

36E36-304 IP WHITE RODGERS VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

720-050 ROBERTSHAW VR8205A2024 VR8305M3506 — VR8345M4302

720-051 ROBERTSHAW VR8205A2024 VR8305M3506 — VR8345M4302

720-070 ROBERTSHAW VR8204A2076 VR8304A3509 — VR8345M4302

V4185A1000 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M3402

a,b

V4185A1010 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4185B1008 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4185B1016 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4185B1024 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225A1002 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225A1028 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225A1044 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225A1051 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225A1077 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225B1000 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225B1018 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4225B1026 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

(Footnotes at end of table).

68-0160 4

VR8345M

INSTALLATION

TABLE 3—VR8345 REPLACES THESE GAS CONTROLS (Continued).

Replacement Gas Controls Universal

Old Model No. Manufacturer VR8200 VR8300 VR800 Replacement

V4227A1000 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4227A1018 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4227B1008 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4227B1016 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4249A1004 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4249A1012 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4249A1020 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1005 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1013 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1021 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1039 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1047 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4297A1054 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4298A1004 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V4298A1012 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V445A1009 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

V445A1017 HONEYWELL VR8205A2024 VR8305M3506

VR8450A4113

VR8345M4302

a,b

V8185A1001 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

V8185A1019 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

V8185A1035 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

V8185B1009 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

V8185B1017 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

V8247A1000 HONEYWELL VR8205A2024 VR8305A3506 VR8450A4113 VR8345M4302

V8247B1005 HONEYWELL VR8205A2024 VR8305A3506 VR8450A4113 VR8345M4302

V845A1018 HONEYWELL VR8205A2024 VR8305A3506 VR8450A4113 VR8345M4302

V845A1026 HONEYWELL VR8205A2024

VR8305A3506 VR8450A4113

VR8345M4302

a,c

V845A1034

HONEYWELL VR8205A2024 VR8305A3506 VR8450A4113 VR8345M4302

V845A1133

HONEYWELL VR8205A2024 VR8305A3506 VR8450A4113 VR8345M4302

VR4450M2035 HONEYWELL VR8205A2024

VR8305A3506

VR8450A4113

VR8345M4302

a,b

VR4450M2126 HONEYWELL VR8205A2024

VR8305A3506

VR8450A4113

VR8345M4302

a,b

VR4450M2159

HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

VR445M1009 HONEYWELL VR8205A2024

VR8305M3506

VR8450A4113

VR8345M4302

a,b

VR445M1017

HONEYWELL VR8205A2024

b,c

VR8305M3506

b,c

VR8450A4113

b,c

VR8345M4302

a,b,c

VR8204A2032 HONEYWELL — — — VR8345M4302

VR8204A2001 HONEYWELL VR8204A2076 — — VR8345M4302

VR8204A2027 HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2035 HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2043

HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2050 HONEYWELL VR8204A2076 — — VR8345M4302

VR8204A2068

HONEYWELL VR8204A2076 — — VR8345M4302

VR8204A2076 HONEYWELL VR8204A2076 — — VR8345M4302

(Footnotes at end of table). (Continued)

568-0160

VR8345M

INSTALLATION

TABLE 3—VR8345 REPLACES THESE GAS CONTROLS (Continued).

Replacement Gas Controls Universal

Old Model No. Manufacturer VR8200 VR8300 VR800 Replacement

VR8204A2092

HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2100 HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2118 HONEYWELL VR8204A2076

e,f

——VR8345M4302

e,f

VR8204A2126 HONEYWELL VR8204A2076 — — VR8345M4302

VR8204A2134 HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2142 HONEYWELL VR8204A2076 — — VR8345M4302

VR8204A2167

HONEYWELL VR8204A2076

——VR8345M4302

VR8204A2175 HONEYWELL VR8204A2076

——VR8345M4302

VR8205A2008 HONEYWELL VR8205A2024 — — VR8345M4302

VR8205A2016

HONEYWELL VR8205A2024

——VR8345M4302

a,c

VR8205A2024 HONEYWELL VR8205A2024 — — VR8345M4302

VR8205A2073 HONEYWELL VR8205A2024

——VR8345M4302

a,c

VR8440A2001 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440A2019

HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440A2050 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440A2076 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440A2084 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440A2092 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440A2100 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440A2118 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440A2134 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440A2142 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M1000 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2008 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2016 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440M2024 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2032

HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2040

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440M2057 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2065 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440M2073 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR8440M2081

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8440M2099 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844A1002 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844A1028

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844A1051 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844A1085 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1006 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1014 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1063 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1162 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

(Footnotes at end of table). (Continued)

68-0160 6

VR8345M

INSTALLATION

TABLE 3—VR8345 REPLACES THESE GAS CONTROLS (Continued).

Replacement Gas Controls Universal

Old Model No. Manufacturer VR8200 VR8300 VR800 Replacement

VR844M1170 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1188

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844M1196

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844M1220

HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1246 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844M1287

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844M1295 HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR844N1003 HONEYWELL VR8204A2076 VR8304M3509 VR8440A3025 VR8345M4302

VR844R1005

HONEYWELL VR8204A2076

VR8304M3509 VR8440A3025

VR8345M4302

VR8450A2000 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR8450A2109 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR8450A2117

HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR8450M2023 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR8450M2064 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR8450R6003 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

VR845M1013 HONEYWELL VR8205A2024 VR8305M3506 VR8450A4113 VR8345M4302

aDirect ignition application.

bRequires Honeywell AT40 or AT72 transformer.

cRegulator setting on replacement valve differs from original. Adjust to rated pressure as necessary for optimum performance.

dShipped by Honeywell as LP gas only; may have been converted to natural gas by OEM.

eUse with 1/8 in. compression fitting, part no. 3934014-1.

fUse with 3/4 in. angle flange, part no. 393690-15 .

gRequires 1/2 in. straight flange (part no. 393690—16) or an angle flange (part no. 393690—13).

CAUTION

Never apply a jumper across or short the valve coil

terminals. This can burn out the heat anticipator in

the thermostat or damage the electronic intermit-

tent 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 following instructions.

CONVERT BETWEEN NATURAL AND LP GAS

WARNING

FIRE OR EXPLOSION HAZARD

CAN CAUSE PROPERTY DAMAGE,

SEVERE INJURY, OR DEATH

Do not attempt to use a gas control set for natural

gas on LP gas or a gas control set for LP gas on

natural gas.

Convert standard-opening gas controls from natural gas

to LP gas with the conversion kit included with this

TRADELINE® gas control. Part number 393691 converts

from natural to LP gas. Part number 394588 converts from

LP to natural gas.

USE PIPE ADAPTER TO SOLVE SWING RADIUS

PROBLEMS

In some field service applications, space limitations

makeit difficultorimpossible tothreadthe gascontrolonto

the gas supply pipe. This problem can be resolved for many

installationsby usingapipeadapter. Installthepipe adapter

on the end of the supply pipe in place of the gas control by

following the same precautions and instructions that are

used for installing the gas control. After the pipe adapter is

installed, attach the gas control to the adapter as outlined in

the Install Pipe Adapter to Gas Control section.

NOTE: Using a pipe adapter increases the overall length of

the gas control.

INSTALL PIPE ADAPTER TO GAS CONTROL

Install adapter to gas control as follows:

768-0160

VR8345M

INSTALLATION

Bushings

1. Remove seal over gas control inlet or outlet.

2. Apply moderate amount of good quality pipe com-

pound to bushing, leaving two end threads bare. See Fig. 2.

3. Insert bushing in gas control and carefully thread pipe

into the bushing until tight.

Fig. 2—Use moderate amount of pipe com-

pound.

3. ThreadpipetheamountshowninTable4 forinsertion

into the gas control.

TABLE 4—NPT PIPE THREAD LENGTH IN INCHES.

TWO IMPERFECT

THREADS GAS CONTROL

THREAD PIPE THE AMOUNT

SHOWN IN TABLE 4 FOR

INSERTION INTO GAS CONTROL

APPLY A MODERATE AMOUNT OF

PIPE COMPOUND TO PIPE ONLY

(LEAVE TWO END THREADS BARE).

M3075A

PIPE

LOCATION

Locate the combination gas control in the appliance

vestibule on the gas manifold. In replacement applications,

locatethegascontrol inthe samelocationastheold control.

Do not locate the gas control where it can be affected by

steam cleaning, high humidity, dripping water, corrosive

chemicals, dust or grease accumulation, or excessive heat.

For proper operation, follow these guidelines:

•Locate gas control in a well-ventilated area.

•Mount gas control high enough above the cabinet bot-

tom to avoid exposure to flooding or splashing water.

•Make sure the ambient temperature does not exceed

the ambient temperature ratings for each component.

•Cover gas control when the appliance is cleaned with

water, steam, or chemicals or to avoid dust and grease

accumulation.

•Avoid locating gas control where exposure to corro-

sive chemical fumes or dripping water is possible.

INSTALL PIPING TO GAS CONTROL

All piping must comply with applicable codes and ordi-

nances or with the National Fuel Gas Code (ANSI Z223.1

NFPA No. 54), whichever applies. Tubing installation

must comply 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. Make sure all tubing bends are smooth and without

deformation.

2. Run pipe or tubing to the gas control. If tubing is used,

obtain a tube-to-pipe coupling to connect the tubing to the

gas control.

3. Install sediment trap in the supply line to the gas

control. See Fig. 3.

INSTALL GAS CONTROL

1. This gas control can be mounted from 0 to 90 degrees

in any direction from the vertical position of the gas control

knob.

2. Mountthe gas controlso gasflow isin the directionof

the arrow on the bottom of the gas control.

Pipe

Size

Thread Pipe

This Amount

Maximum Depth

Pipe can be

Inserted into

Control

3/8 9/16 3/8

1/2 3/4 1/2

3/4 13/16 3/4

IMPORTANT: Donotthreadpipe toofar. Valvedistortion

ormalfunction canresultwhen thepipeis insertedtoo

deeply into the gas control.

Fig. 3—Install sediment trap.

GAS

CONTROL

GAS

CONTROL

HORIZONTAL

DROP

PIPED

GAS

SUPPLY

PIPED

GAS

SUPPLY

3 in.

(76 mm)

MINIMUM

3 in.

(76 mm)

MINIMUM

3 in.

(76 mm)

MINIMUM

RISER

GAS

CONTROL

TUBING

GAS

SUPPLY

HORIZONTAL

DROP

RISER

M8435

ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.

CAUTION: SHUT OFF THE MAIN GAS SUPPLY

BEFORE REMOVING END CAP TO PREVENT

GAS FROM FILLING THE WORK AREA. TEST

FOR GAS LEAKAGE WHEN INSTALLATION

IS COMPLETE.

4. Apply a moderate amount of good quality pipe com-

pound (do not use Teflon tape) to pipe only, leaving two end

threads bare. See Fig. 2. On LP installations, use compound

resistant to LP gas.

5. Remove seals over gas control inlet and outlet if

necessary.

6. Connect pipe to gas control inlet and outlet. Use

wrench on the square ends of the gas control. See Fig. 4

and 5.

68-0160 8

VR8345M

INSTALLATION

When working with an intermittent pilot ignition sys-

tem, go next to the Connect Pilot Gas Tubing section.

When installing on a hot surface or direct spark ignition

system, go to the Wiring section.

Fig. 4—Top view of gas control.

3. Square off and remove burrs from end of tubing.

4. Use the compression fitting supplied with this gas

control. Slip the fitting over the tubing and slide out of the

way.

NOTE: When replacing a gas control, cut off old compres-

sion fitting and replace with the new compression fitting

provided on the gas control. Never use the old compres-

sion fitting because it may not provide a gas-tight seal.

5. Pushtubing intothe pilotgas tappingon theoutlet end

of the control until it bottoms. While holding tubing all the

way in, slide compression fitting into place, engage threads

and turn until finger tight. Then tighten one more turn with

wrench. Do not overtighten. Refer to Figs. 6 and 7.

6. Connect other end of tubing to pilot burner according

to pilot burner manufacturer instructions.

Fig. 6—Always use new compression fitting.

OUTLET

PRESSURE

TAP

INLET OUTLET

WIRING

TERMINALS (2)

INLET

PRESSURE TAP

PRESSURE REGULATOR

ADJUSTMENT (UNDER

CAP SCREW)

CONVENIENCE

TERMINALS (2)

(OPTIONAL)

PILOT OUTLET

PILOT ADJUSTMENT

(UNDER CAP SCREW)

GAS CONTROL KNOB

M8436

MUST USE WIRE ADAPTER (NOT SHOWN) ON HSI OR DSI SYSTEM.

MUST USE PILOT PLUG (NOT SHOWN) ON HSI OR DSI SYSTEM.

Fig. 5—Proper use of wrench on gas control.

APPLY WRENCH

FROM TOP OR

BOTTOM OF GAS

CONTROL TO

EITHER SHADED AREA

M8562

CONNECT PILOT GAS TUBING (INTERMITTENT

PILOT IGNITION ONLY)

1. Remove the pilot gas seal (plug).

2. Cut tubing to desired length and bend as necessary for

routing to pilot burner.

CAUTION

1. Do not make sharp bends or deform the tubing.

2. Do not bend tubing at the gas control or pilot

burner after compression fitting has been tight-

enedbecausethiscanresult ingas leakageatthe

connection.

GAS CONTROL

TIGHTEN NUT ONE TURN

BEYOND FINGER TIGHT

FITTING BREAKS OFF AND CLINCHES

TUBING AS NUT IS TIGHTENED

BURNER

M3076A

Fig. 7—Remove pilot gas seal (plug) and install

pilot gas tube for intermittent pilot application on

VR8345.

M8441

OFF

PILOT GAS

TUBE

968-0160

VR8345M

INSTALLATION

WIRING

CAUTION

Disconnect power supply before making wiring

connections to prevent electrical shock or equip-

ment damage.

Follow the wiring instructions furnished by the appli-

ance manufacturer, if available, or use the following gen-

eral instructions. Where these instructions differ from the

appliancemanufacturer,followthe appliancemanufacturer

instructions.

Fig. 8—Install wire adapter for hot surface or direct spark ignition systems. Pilot plug must be in the valve

pilot opening.

M8440

OFF

PILOT GAS SEAL

(PLUG)

WIRE

ADAPTER

All wiring, including insulated quick connect terminals,

mustcomplywithapplicableelectricalcodesandordinances.

1. Check the power supply rating on the gas control and

make sure it matches the available supply. Install thermostat

and other controls as required.

2. When the gas control is installed on a hot surface or

directsparkignitionsystem,attachthewireadapterprovided

to the wiring terminals. See Fig. 8 for the wire terminal

location.

3. Connect control circuit to gas control terminals. See

Figs. 4 and 9 through 11.

4. Adjustthethermostatheat anticipatorto0.7, therating

stamped on the valve operator.

68-0160 10

Fig. 9—VR8345 wiring connections in intermittent ignition system.

(HOT)

M8564

S8610U

MV MV/PV PV

GND

(BURNER) 24V

GND 24V TH-W

VENT

DAMPER

PLUG SENSE SPARK

THERMOSTAT

LIMIT

CONTROLLER

PILOT

BURNER

GROUND

SENSOR

IGNITER

MV/PV

VR8345

DUAL VALVE COMBINATION

GAS CONTROL

PILOT GAS

SUPPLY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

ALTERNATE LIMIT CONTROLLER LOCATION.

MAXIMUM CABLE LENGTH 3 ft [0.9 m].

CONTROLS IN 24V CIRCUIT MUST NOT BE GROUND LEG TO TRANSFORMER.

LEAVE VENT DAMPER PLUG CONNECTED.

REMOVE JUMPER AND CONNECT SENSE TERMINAL ON TWO ROD APPLICATION ONLY.

CONTROLLER

COMBUSTION

AIR BLOWER

MOTOR

COMBUSTION

AIR BLOWER

RELAY

AIR

PROVING

SWITCH

Fig. 10—VR8345 wiring connections in hot surface ignition system.

(HOT)

VR8345M

COMBINATION

GAS CONTROL

S8910U HOT SURFACE IGNITER CONTROL

HOT SURFACE

IGNITER/SENSOR

Q354 FLAME

SENSOR

LIMIT

CONTROLLER

THERMOSTAT OR

CONTROLLER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

MAKE SURE L1 AND L2 ARE NOT REVERSED. THIS WOULD PREVENT FLAME DETECTION.

ALTERNATE LIMIT CONTROLLER LOCATION

SENSE TERMINAL AND Q354 FLAME SENSOR ON D MODELS ONLY.

BURNER

GROUND

M8563

QUICK

CONNECTS

AUTO IGNITION

SYSTEMS

ANSI Z21.20

STATUSLED:

1. Flash-IgnitionLockout

2Flash-WeakFlameSignal

3Flash-Internal Error-ReplaceControl

Pulsing"Heartbeat"-Normal Operation

S8910U HOT SURFACE IGNITION

INPUT VOLTAGES = 120 & 24 VAC, 60HZ

HSI = 120V, 6.5A MAX

VALVE = 24V, 1A MAX TOTAL 24V LOAD = 0.2 + VALVE LOAD

120VAC

HOT

570A0056

WARNING

Explosion hazard. Can cause

serious injury or death.

This device can malfunction if

it gets wet. Never try to use a

device that has been wet -- replace it.

GND

(BURNER)

24V

(GND)

VALVE

(GND)

24V

LED

HSI

SENSE

VALVE

MPLS., MN 55422

SEE

INSTRUCTIONS

FOR REMOTE

SENSE/DUAL

ROD

APPLICATIONS

TRIAL TIME,

NUM. OF TRIALS

CONFIGURATION

PLUG

120VAC

NEUTRAL

TRIAL

TIME: 7 SEC

NUM OF

TRIALS: 1

PrepurgeTime= 30Sec

Igniter WarmupTime= 34sec

HSI WIRE

ADAPTER

VR8345M

INSTALLATION

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