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SV9401/SV9402/SV9403,
SV9501/SV9502/SV9503,
SV9601/SV9602 SmartValve™
APPLICATION
The SV9401/SV9402/SV9403, SV9501/SV9502/SV9503,
and SV9601/SV9602 SmartValve™ System Controls
combine gas flow control and electronic intermittent
pilot sequencing functions into a single unit. This
product family offers several different intermittent pilot
sequences for a wide range of applications. See Table 1
for specific sequences available. The Q3450 or Q3480
Intermittent Pilot hardware provides the low voltage
ignition, flame sensor, and pilot burner. This system is
suitable for application in a wide range of gas-fired
appliances including furnaces, rooftop furnaces, boilers,
unit heaters, infrared heaters, space heaters, water
heaters, decorative appliances, and commercial cooking
units. The specific application of the SmartValve System
is the responsibility of the appliance manufacturer. See
Table 2 for gas capacity and thread sizes.
Model
SV9401/SV9501/SV9601 Continuous Retry
SV9402/SV9502/SV9602 Continuous Retry
SV9403/SV9503
a
All times increase by approximately 20 percent when used at 50 Hz.
b
Pilot flow stops at end of ignition trial unless pilot lights and proves.
Table 1. Ignition Sequence Description.
Type
Single Trial with Lockout
INSTALLATION INSTRUCTIONS
SPECIFICATIONS
WARNING
Fire or Explosion Hazard. Can cause property
damage, severe injury, or death.
The SV9401/SV9402/SV9403;
SV9501/SV9502/SV9503; SV9601/SV9602
provide direct replacement only. Use the Y8610
to convert standing pilot systems to electronic
ignition systems.
Ignition Sequences:
See Table 1 for available ignition sequences.
Body Pattern:
Straight through. See Table 2 for inlet and outlet
specifications.
Capacity:
See Table 2 for available gas flow capacities.
Table 3 describes the acceptable ambient temperature
range for the SV9X01, SV9X02, and SV9X03
SmartValves.
a
Prepurge (sec)
Ignition Trial Time
90 seconds
15 or 30 seconds 90 seconds
90 seconds
b
Auto Reset Time
5 minutes
5 minutes
N/A
69-1004-01

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Summary of Contents for resideo SmartValve SV9401

  • Page 1 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SmartValve™ INSTALLATION INSTRUCTIONS APPLICATION SPECIFICATIONS The SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, WARNING and SV9601/SV9602 SmartValve™ System Controls combine gas flow control and electronic intermittent Fire or Explosion Hazard. Can cause property pilot sequencing functions into a single unit. This damage, severe injury, or death. product family offers several different intermittent pilot The SV9401/SV9402/SV9403;...
  • Page 2 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ Table 2. Capacity and Inlet and Outlet Specifications. Capacity (at 1 in. wc Size Minimum Regulated Maximum Regulated Model Inlet x Outlet (in.) pressure drop Capacity Capacity SV9401/SV9402/ 1/2 x 1/2 NPT 85 ft 10 ft /hr (0.4m /hr) 120 ft...
  • Page 3: Planning The Installation

    These applications require Resideo enclosure. Residential Thermal Solutions Engineering review; contact your Resideo Sales Representative for Dust or Grease Accumulation assistance.
  • Page 4: Installation

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ INSTALLATION Converting Ignition System Control from Natural Gas to LP Gas When Installing this Product... Application (or LP Gas to Natural 1. Read these instructions carefully. Failure to follow Gas Application) them could damage the product or cause a hazard- ous condition.
  • Page 5 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ the installation includes 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. 6. OTHER SIDE Location PRESSURE OF CAP...
  • Page 6: Install Control

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ Install Control IGNITION 1. This ignition system control can be mounted 0 to IMPERFECT SYSTEM THREADS CONTROL 90 degrees in any direction, including vertically, from the upright position of the ignition system control switch. PIPE 2. Mount the control so the gas flow is in the direction of the arrow on the bottom of the ignition system control.
  • Page 7 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ rated for 40 VA or higher. An appliance system power review is recommended. Install a trans- PRESSURE REGULATOR IGNITER ADJUSTMENT (UNDER CONNECTOR former, thermostat and other controls, as required. CAP SCREW) 2. Connect control circuit to the ignition system con- trol using the keyed plug connector.
  • Page 8 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ FUSE L1(H) TO 115/230 VAC HUMIDIFIER POWER SUPPLY L2(N) ROLL-OUT SWITCH 115/230 VAC AIR CLEANER TRANS- FORMER 24 VAC INDUCER MOTOR LIMIT CONTROL NEUTRAL BLWR STARTING PILOT BURNER GROUND (THROUGH PILOT TUBING) PRESSURE SWITCH CIRCULATING ST9120 24 VOLT COMMON 24 VOLT...
  • Page 9: Startup And Checkout

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ COMBUSTION PRESSURE AIR BLOWER SWITCH R8222U RELAY 24V THERMOSTAT (HOT) CIRCULATOR R8285D CONTROL CENTER PILOT BURNER LIMIT GROUND (THROUGH PILOT TUBING) 24 VOLT ROLL-OUT COMMON SWITCH 24 VOLT POWER SUPPLY. PROVIDE DISCOUNNECT MEANS AND OVERLOAD OUTPUT PROTECTION AS REQUIRED.
  • Page 10: Check And Adjust Gas Input And Burner Ignition

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ repair as necessary. If the pilot flame is hard and noisy, Checking Gas Input with Manometer the inlet gas pressure may be too high. The ignition system control has a pilot adjustment mechanism to IMPORTANT reduce the pilot flow, if necessary. Use the following procedure: 1.
  • Page 11: Maintenance

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ 1. Carefully check the main burner lightoff to make using a manometer at the inlet pressure tap of the sure the burner lights smoothly and all the ports ignition system control. If the inlet pressure is in remain lit.
  • Page 12: Sequence Of Operation

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ • Make sure the appliance is powered with the gas SERVICE supply turned on. • Make sure the ignition system control switch is in the ON position. CAUTION Equipment Damage. Can cause property damage. TROUBLESHOOTING Do not disassemble the ignition system control; it contains no replaceable components.
  • Page 13 SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ SV9X01/SV9X02/SV9X03 SmartValve™ FAMILY SEQUENCE OF OPERATION START APPLY 24 VAC TO APPLIANCE THERMOSTAT CALLS FOR HEAT FIVE-MINUTE RETRY DELAY PREPURGE/ SYSTEM CHECK PREPURGE (SV9X02 ONLY) • WAIT FOR FLAME SIGNAL TO DISAPPEAR. FLAME SIGNAL DETECTED? • PILOT VALVE/IGNITER REMAIN OFF INTERNAL CHECK OKAY? TRIAL •...
  • Page 14: Instructions To The Homeowner

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ SV9X01/SV9X02/SV9X03 SmartValve™ TROUBLESHOOTING SEQUENCE INSET A END VIEW OF CONTROL 24 VOLT HARNESS THERMOSTAT NOTE: BEFORE TROUBLESHOOTING, CONNECTOR OR PRESSURE BECOME FAMILIAR WITH THE STARTUP SWITCH START AND CHECKOUT PROCEDURE. ALSO • TURN OFF GAS SUPPLY OUTPUT CHECK PILOT BURNER ELEMENT FOR •...
  • Page 15: Complete Shutdown

    SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ The ignition system control must be replaced in event of 5. Wait five minutes to clear out any unburned gas. If any physical damage, tampering, bent terminals, missing you then smell gas, STOP! Follow the Warnings or broken parts, stripped threads, or evidence of above.
  • Page 16 Resideo Technologies, Inc. 1985 Douglas Drive North, Golden Valley, MN 55422 1-800-468-1502 www.resideo.com 69-1004—01 M.S. Rev. 04-20 | Printed in United States © 2020 Resideo Technologies, Inc. All rights reserved. This product is manufactured by Resideo Technologies, Inc. and its affiliates.

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