Honeywell SmartValve SV9520H Скачать руководство пользователя страница 3

SV9520H SMARTVALVE™ SYSTEM CONTROL LINE VOLTAGE POLARITY SENSE MODELS

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Frequent Cycling

This control is designed for use on appliances that 
typically cycle three to four times an hour only during the 
heating season. In year-around applications with greater 
cycling rates, the control can wear out more quickly. 
Perform a monthly checkout.

Water or Steam Cleaning

If a control gets wet, replace it. If the appliance is likely to 
be cleaned with water or steam, protect (cover) the 
control and wiring from water or steam flow. Mount the 
control high enough above the bottom of the cabinet so it 
does not get wet during normal cleaning procedures. 

High Humidity or Dripping Water

Dripping water can cause the control to fail. Never install 
an appliance where water can drip on the control.

In addition, high ambient humidity can cause the control 
to corrode and fail. If the appliance is in a humid 
atmosphere, make sure air circulation around the control 
is adequate to prevent condensation. Also, regularly 
check out the system. 

Corrosive Chemicals

Corrosive chemicals can attack the control, eventually 
causing a failure. If chemicals are used for routine 
cleaning, avoid contact with the control. Where chemicals 
are suspended in air, as in some industrial or agricultural 
applications, protect the control with an enclosure.

Dust or Grease Accumulation

Heavy accumulations of dust or grease can cause the 
control to malfunction. Where dust or grease can be a 
problem, provide covers for the control to limit 
contamination.

Heat

Excessively high temperatures can damage the control. 
Make sure the maximum ambient temperature at the 
control does not exceed the rating of the control. If the 
appliance operates at very high temperatures, use 
insulation, shielding, and air circulation, as necessary, to 
protect the control. Proper insulation or shielding should 
be provided by the appliance manufacturer; verify proper 
air circulation is maintained when the appliance is 
installed.

Line Voltage Power Supply

WARNING

Electrical Shock Hazard.
Can cause serious injury or death.
Disconnect power supply before installation. 
More than one disconnect may be necessary.

Connect the appliance chassis to earth ground. Make 
sure the 120 Vac neutral line and earth ground are 
electrically common at the breaker box.

INSTALLATION

When Installing this Product...

1.

Read these instructions carefully. Failure to follow 
them could damage the product or cause a 
hazardous condition.

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 
technician.

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 

prevent 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. Always install a sediment trap in gas supply 

line to prevent contamination of ignition system 
control.

CAUTION

Equipment Damage Hazard.
Improper wiring can damage thermostat
or transformer.
Never apply a jumper across or short the 
thermostat, 24V hot or 24V common terminal in 
the SV9520 wiring harness. This can burn out the 
heat anticipator in the thermostat or damage the 
system transformer.

Follow the appliance manufacturer instructions if 
available; otherwise, use these instructions as a guide.

Converting Ignition System Control from 
Natural Gas to LP Gas Application 
(or LP Gas to Natural Gas Application)

WARNING

Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Always change the main burner orifices when 
converting from natural to LP gas or from LP to 
natural gas. Follow appliance manufacturer 
specifications and instructions.

Ignition system controls are factory-set for natural (and 
manufactured) or LP gas. Do not attempt to use an 
ignition system control set for natural (manufactured) gas 
on LP gas, or an ignition system control set for LP gas on 
natural (manufactured) gas.

Содержание SmartValve SV9520H

Страница 1: ... control is removed when the thermostat call for heat ends This system is suitable for a wide range of fan assisted combustion gas fired appliances including furnaces rooftop furnaces boilers unit heaters infrared heaters water heaters and commercial cooking appliances The specific application of the SmartValve System is the responsibility of the appliance manufacturer See Table 2 for temperature ...

Страница 2: ...pressure drop Table 4 Gas Capacity Conversion Factor Table 5 Adapter Flange Part Numbers a Flange kits include one flange one O ring and four mounting screws PLANNING THE INSTALLATION WARNING Fire or Explosion Hazard Can cause property damage severe injury or death Follow these warnings exactly 1 Plan the installation as outlined below 2 Plan for frequent maintenance as described in the Maintenanc...

Страница 3: ...l Shock Hazard Can cause serious injury or death Disconnect power supply before installation More than one disconnect may be necessary Connect the appliance chassis to earth ground Make sure the 120 Vac neutral line and earth ground are electrically common at the breaker box INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could damage the produc...

Страница 4: ...he control after completing the installation includes leak testing the adapters and screws If you use a wrench on the valve after the flanges are installed use the wrench only on the flange not on the control See Fig 5 Location The SV9520H is mounted in the appliance vestibule on the gas manifold CAUTION Equipment Damage Hazard Water can damage equipment and wiring Do not locate where water can dr...

Страница 5: ...ol inlet and outlet if necessary 6 Connect the pipe to the ignition system control inlet and outlet Use a wrench on the square ends of the ignition system control If a flange is used place the wrench on the flange rather than on the ignition system control Refer to Fig 4 and 5 Fig 4 Top view of ignition system control Fig 5 Proper use of wrench on ignition system control with and without flanges P...

Страница 6: ...commonality STARTUP AND CHECKOUT Ignition System Control Switch Settings Ignition system control switch settings are as follows OFF prevents main gas flow through the ignition system control ON permits gas to flow through the control body At the appropriate time in the appliance operation main gas can flow to the main burner NOTE Controls are shipped with the ignition system control switch in the ...

Страница 7: ...river turn the inner adjustment screw clockwise to increase or counterclockwise to decrease the gas pressure to the burner c Always replace the cap screw and tighten firmly to prevent gas leakage 4 If the desired outlet pressure or flow rate cannot be achieved by adjusting the ignition system control check the ignition system control inlet pressure using a manometer at the ignition system control ...

Страница 8: ...ening model to assure lightoff at step pressure Model Type Type of Gas Nominal Inlet Pressure Range Factory Set Nominal Outlet Pressure Setting Range Step Full Rate Step Full Rate Slow NAT 5 0 to 7 0 3 5 3 0 to 5 0 LP 12 0 to 14 0 10 0 8 0 to 12 0 Model Type Type of Gas Nominal Inlet Pressure Range Factory Set Nominal Outlet Pressure Setting Range Step Full Rate Step Full Rate Slow NAT 1 2 to 1 7 ...

Страница 9: ...ls 3 Observe LED indicator on SV9520 check and repair the system as noted in Table 9 4 After LED flash code analysis and appliance repair are complete turn thermostat below room temperature for 10 seconds turn the thermostat above room temperature to initiate a new call for heat 5 Observe the ignition sequence comparing it to the Sequence of Operation shown in Fig 11 Allow the new ignition sequenc...

Страница 10: ...tion comparing it to the Sequence of Operation shown in Fig 11 Allow the ignition sequence to proceed until the appliance lights or an abnormal or unexpected event is observed Be sure to wait long enough for one of the LED diagnostic codes to flash 7 Observe the LED indicator on the SmartValve check and repair the system as noted in Table 10 8 After analysis and repair are complete turn off applia...

Страница 11: ...reset the safety control 2 Disconnect all electric power to the appliance 3 Remove the ignition system control access panel 4 Move the ignition system control switch to the OFF position 5 Wait five minutes to clear out any unburned gas If you then smell gas STOP Follow Step 1 in the Warning above If you do not smell gas continue with the next step 6 Move the ignition system control switch to the O...

Страница 12: ...R PROVING SWITCH PROVED CLOSED WITHIN 30 SECONDS COMBUSTION AIR BLOWER OFF MAIN VALVE CLOSES COMBUSTION AIR BLOWER OFF AFTER POST PURGE 1 HOUR AUTO LOCKOUT RESET DELAY MAIN VALVE CLOSES COMBUSTION AIR BLOWER OFF AFTER POST PURGE CIRCULATING AIR FAN OFF AFTER DELAY WAIT FOR NEXT CALL FOR HEAT FAILED TRIALS FOR IGNITION LESS THAN FOUR DURING THIS IGNITION SEQUENCE NO NO YES YES YES NO NO MAIN VALVE ...

Страница 13: ...hes Limit string open Combustion air blower is energized If control system includes ST9160 Electronic Fan Timer the heat speed circulating air fan will be energized System waits for limit string to close then initiates a new ignition sequence 1 Open high temperature or auxiliary limit switch 2 Open manual reset or auto reset burner rollout switch in the limit circuit 3 Limit and rollout switch cir...

Страница 14: ... inducer wiring 2 Low line voltage power supply 3 Airflow proving switch operation tubing wiring 4 Obstructions or restrictions in appliance air intake or exhaust flue system that prevent proper combustion airflow 5 Other devices such as auxiliary limits in the airflow proving circuits 6 4 Flashesa b Soft Lockout Recycle count exceeds 5 on this call for heat last failure was Limit Circuit Opened D...

Страница 15: ...hes Limit string open Combustion air blower is energized If control system includes ST9160 Electronic Fan Timer the heat speed circulating air fan will be energized System waits for limit string to close then initiates a new ignition sequence 1 Open high temperature or auxiliary limit switch 2 Open manual reset or auto reset burner rollout switch in the limit circuit 3 Limit and rollout switch cir...

Страница 16: ... 2 Low line voltage power supply 3 Airflow proving switch operation tubing wiring 4 Obstructions or restrictions in appliance air intake or exhaust flue system that prevent proper combustion airflow 5 Other devices such as auxiliary limits in the airflow proving circuits 6 4 Flashesa b Soft Lockout Recycle count exceeds 5 on this call for heat last failure was Limit Circuit Opened During Run 1 Ope...

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