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SV9501/SV9502/SV9601/SV9602 SMARTVALVE

TM 

SYSTEM CONTROL

3

69-1270—3

Ignition system controls are set at the factory for natural 
or LP gas. Do not attempt to use an ignition control made 
for LP gas on a natural gas system. Do not attempt to use 
an ignition control made for natural gas on an LP gas 
system.

Ignition system controls with standard opening regulators 
(SV9501M, SV9502M, and SV9601M) or slow opening 
regulators (SV9501H and SV9502H) can be converted 
between natural gas and LP gas.

Ignition system controls with step opening regulators (P 
suffix) cannot be converted between gases.

Selecting the Valve

Make sure when replacing any SmartValve

TM

 that you 

know what valve is going in and what valve is coming out. 
The SV9501 and SV9502 look slightly different from the 
SV9500. The SV9500 features an ON/OFF control knob, 
as shown in Fig. 1. The SV9501, SV9502, SV9602, and 
SV9601 have an ON/OFF switch, as shown in Fig. 2. The 
SV9501, SV9502, SV9601, and SV9602 have a 
connector located at the top of the valve instead of on the 
front.

The SV9501, SV9502, SV9602, and SV9601 have 
identical valve body features and use the same 
connectors.

NOTE: The SV9601 and the SV9602 do not have flange 

mounting capability.

Fig. 1. Front view of SV9500.  Notice the ON/OFF 

control knob.

Location

Mount the SV9501, SV9502, SV9602, or SV9601 on the 
gas manifold in the appliance.

Use of Pipe Adapters

In some field service applications, space limitations make 
it difficult or impossible to thread the gas control onto the 
gas supply line. This problem can be resolved for many 
installations by using a pipe adapter. Install the pipe 
adapter on the end of the supply line 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.

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:

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.

3.

Insert bushing into gas control and carefully thread 
pipe into the bushing until tight.

Installing Flange Adapters to Control 
(If Required)

Mount any necessary adapters as follows:

Flanges

1.

Choose the correct flange for the application.

2.

Remove the seal over the ignition system control or 
outlet.

3.

Make sure the O-ring is fitted in the flange groove. If 
the O-ring is not attached or is missing, do not use 
the flange.

4.

With the O-ring facing the ignition system control, 
align the screw holes on the ignition system control 
with the holes in the flange.

5.

Insert the screws provided with the flange.

6.

Tighten the screws firmly but do not over tighten

Installing Piping to Control

IMPORTANT

Do not use Teflon® tape.

All piping must comply with local codes or ordinances 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 that has no chips.

2.

Make sure the ends are square, deburred, and 
clean.

3.

Make sure all tubing bends are smooth and without 
deformation.

4.

Get a tube-to-pipe coupling if necessary.

5.

Run pipe or tubing to the ignition system control.

6.

Install a sediment trap in the supply line to the 
ignition system control as shown in Fig. 3.

M3342A

VALVE OUTLET

FLANGE

9/64 INCH HEX SCREWS (4) 

Summary of Contents for TRADELINE SV9501

Page 1: ...ed step outlet pressure at the start of each heating cycle to allow main burner ignition at reduced outlet pressure Reducer bushings are provided with the SV9602 and SV9601 models for adapting to smaller pipe sizes IMPORTANT Carefully determine the full Honeywell model number of the existing control Use Table 4 or Table 5 to make sure the replacement control model is suitable for replacing the ori...

Page 2: ...ge the control Make sure the ambient temperature at the control does not exceed the control rating If the appliance operates at very high temperatures use insulation shielding and proper air circulation as necessary to protect the control The appliance manufacturer should provide proper insulation or shielding Make sure there is proper air circulation when installing the appliance Installation WAR...

Page 3: ...ine 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 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 Bushings 1 Remove seal over gas control inlet ...

Page 4: ...system control connect the pipe to the ignition system control inlet and outlet Fig 3 Sediment trap installation Fig 4 Mount so gas flows in the direction of the arrows NOTE If the control has a flange place the wrench on the flange instead of on the ignition system con trol as shown in Fig 6 Table 1 Threading the Pipe M17142 VALVE OUTLET FLANGE 9 64 INCH HEX SCREWS 4 Pipe Size Thread Pipe this Am...

Page 5: ...50 or Q3480 pilot hardware Wiring Follow the wiring instructions supplied by the appliance manufacturer if available Otherwise use the following general instructions NOTE 1 In most cases connect the wiring by plugging the appliance wiring harness connector into the SmartValveTM Use the supplied exten sion harness if necessary 2 Where the general instructions are different from the appliance manufa...

Page 6: ...ERMOSTAT OR PRESSURE SWITCH PILOT BURNER GROUND THROUGH PILOT TUBING L1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 1 M7935C UNUSED M7937D G W C Y R FUSE AIR CLEANER LO ML MH HI CIRCULATING FAN STARTING CAP ROLL OUT SWITCH LIMIT CONTROL PRESSURE SWITCH TRANS FORMER 115 230 VAC 24 VAC DENOTES STANDARD TERMINAL DENOTES OPTIONAL TERMINAL THERMOSTAT L2 N L1 H TO 115 230...

Page 7: ...ccurs normally ON Allows gas to flow through the control valve The thermostat controls the gas flow to the pilot and main burners Fig 11 SV9501 SV9502 SV9602 SV9601 typical wiring diagram in induced draft boiler application THERMOSTAT L2 L1 120 VAC POWER SUPPLY W G C R Y COIL RED BLACK RED D892 VENT DAMPER 4 3 2 1 BLACK CIRCULATOR PUMP AQUASTAT CONTROL ROLLOUT SWITCH SPILL SWITCH M7936C BLACK PILO...

Page 8: ... gas leakage NOTE Controls are provided with adjustment screws set at the maximum pilot flow position Fig 12 Proper flame adjustment Check and Adjust Gas Input and Burner Ignition IMPORTANT Many replacement valves require outlet pressure adjustment Do not exceed the input rating stamped on the appliance nameplate Do not exceed the manufacturer s recommended burner orifice pressure for size of orif...

Page 9: ...e the control apart or clean it Improper cleaning or reassembly may cause gas leakage Regular preventive maintenance is important in applications that place a heavy load on system controls This include applications in commercial cooking agricultural and industrial industries where these conditions often exist Heavy cycling In commercial cooking the operation the equipment operates 100 000 to 200 0...

Page 10: ...pliances in the house Do not touch any electrical switches Do not use the phone Leave the building and go to a neighbor s phone to call your gas supplier If you cannot reach your gas supplier call the fire department 4 Do not force or use tools to move the ignition system control switch If the switch does not operate by hand the ignition system control must be replaced by a qualified licensed if r...

Page 11: ...eld technicians to analyze normal appliance operation Fig 13 SV9500 SV9600 SmartValveTM System Sequence of Operation APPLY 24V POWER TO SYSTEM START THERMOSTAT CALLS FOR HEAT A POWERED PILOT VALVE OPENS AND IGNITER ENERGIZES PILOT LIGHTS FLAME ROD SENSES FLAME IGNITER OFF MAIN VALVE OPENS MAIN BURNER LIGHTS ELECTRONIC FAN TIMER OUTPUT ENERGIZES THERMOSTAT CALL FOR HEAT ENDS MAIN AND PILOT VALVES C...

Page 12: ...equence and Troubleshooting flow chart in Fig 14 and 16 for the replacement SV9501 SV9502 SV9601 SV9602 SmartValveTM NOTE The HSI element action for SV9501 SV9502 SV9601 SV9602 is different from the HSI element action for SV9500 SV9600 For SV9500 SV9600 the element is on continuously during a call for heat until shortly after the pilot flame is detected the main valve energizes and the element tur...

Page 13: ...MEASURE VOLTAGE BETWEEN 24V HOT AND 24V COMMON LEADS TO SmartValve CONTROL MUST MEASURE AT LEAST 19 5 VAC WITH IGNITER POWERED SEE INSET A TO IDENTIFY PROPER LEAD THIS CHECK MUST BE DONE WITH THE SmartValve CONTROL CONNECTED AND IGNITER POWERED CHECK THAT PILOT FLAME MAKES GOOD CONTACT WITH PILOT BURNER FLAME ROD CHECK FOR GOOD ELECTRICAL CONNECTION THROUGH THE PILOT TUBING IF BOTH OF THE ABOVE AR...

Page 14: ...artValve CONTROL MUST MEASURE AT LEAST 19 5 VAC WITH IGNITER POWERED SEE INSET A TO IDENTIFY PROPER LEAD THIS CHECK MUST BE DONE WITH THE SmartValve CONTROL CONNECTED AND IGNITER POWERED CHECK THAT PILOT FLAME MAKES GOOD CONTACT WITH PILOT BURNER FLAME ROD CHECK FOR GOOD ELECTRICAL CONNECTION THROUGH THE PILOT TUBING IF BOTH OF THE ABOVE ARE GOOD REPLACE IGNITER FLAME ROD ASSEMBLY CYCLE THERMOSTAT...

Page 15: ...ting Type of Opening Prepurge Time Type of Gas Replaces in wc kPa SV9502H2522 1 2 in x 1 2 in 3 5 0 87 Slow 15 sec Natural SV9500H2609a e SV9500H2617a e SV9500H2724e SV9500H3607a d e SV9500H3615b d e SV9501H2409a e SV9501H2417e SV9501H2425b e SV9501H3415a d e SV9501H3423b d e SV9502H1706 SV9502H2522 SV9502H2704 SV9501M2528 Standard None SV9500M2603 SV9500M2629a d SV9500M2637d SV9500M2645 SV9500M26...

Page 16: ...ce has been converted to LP gas use SV9602P4832 as the replacement e These models were field convertible to natural gas If the appliance has been converted to natural gas use SV9602P4824 as the replacement Order Number Inlet Outlet Size Pressure Regulator Setting Type of Opening Prepurge Time Type of Gas Replaces in wc kPa SV9602P4816 3 4 in x 3 4 in 3 5 0 7 Step 30 Sec 30 sec Natural SV9500P2600b...

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