Fenwal 35-63 - User Manual

F-35-63
August 2015
FEATURES
• Safe start with DETECT-A-FLAME
®
flame sensing
technology
• Custom pre-purge and inter-purge timings*
• Single or three trials for ignition
• Mounts on standard 4-in. junction box
•System diagnostic LED
• Flame current test points
• Local or remote flame sensing
• Automatic reset option**
APPLICATIONS
• Commercial cooking
• Gas furnaces
•Unit heaters
•Water heaters
• Other applications requiring intermittent pilot
DESCRIPTION
The 35-63 is a 24 VAC intermittent pilot (spark-to-pilot) ignition
control. The control uses a microprocessor circuit to provide
precise, repeatable timing and operating sequences. On-board
diagnostics with LED output makes troubleshooting easy and
ensures safe and efficient operation.
Export Information (USA)
Jurisdiction: EAR
ECCN: EAR99
Agency Certifications
* Pre-purge time cannot exceed inter-purge time on CE
Approved models.
** Automatic reset is not allowed for CE Approved models.
SPECIFICATIONS
Recognized under the UL component program, UL
372. Software certified to ANSI/UL 1998. UL File
MH8817
Design certified to ANSI Z21.20, CAN/CSA C22.2
No. 199-M89
CE Approved to EN 298:2003
Code Compliant to:
AS 4625 - 2008
AS 4622 - 2004
Input Power Control: 18-30 VAC 50/60Hz
(Class 2 Transformer)
Input Current 300 mA @24 VAC with main and
pilot gas valve relays energized
(control only)
Main Gas Valve 2.0A max (continuous)
Pilot Gas Valve 2.0A max (continuous)
Operating Temperature -40°F to +176°F
(-40°C to +80°C)
Storage Temperature -40°F to +185°F
(-40°C to +85°C)
Flame Sensitivity
0.7
µA minimum
Flame Failure Response 0.8 seconds maximum
Flame Detector Self-check
Rate
Once per second minimum
Gas Types Natural, LP, or manufactured
Spark Rate:
Remote
Local
50/60 sparks/sec
25/30 sparks/sec
Size (LxWxH)
with enclosure
5.69 x 3.94 x 1.87 inches
(14.45 x 10.01 x 4.75 cm)
Moisture Resistance Conformal coated to operate non-
condensing to 95% R.H. Module
should not be exposed to water
Ingress Protection Not rated, protection provided by
appliance in which it is installed
Tries for Ignition One or three try versions available
Trial for Ignition Periods 15, 30, 60, 90 seconds available
Pre-purge and
lnter-purge Timings
0, 15, 30, 45 seconds
or 4 minutes available
SERIES 35-63
24 VAC Microprocessor-Based
Intermittent Pilot Ignition Control
R

Summary

Series 35-63 Product Overview

Key Features

Lists key capabilities like flame sensing, custom timings, mounting options, diagnostic LED, and reset.

Applications

Lists common uses for the control, such as commercial cooking, furnaces, and water heaters.

Product Description

Details the 24 VAC intermittent pilot ignition control, its microprocessor, and diagnostics.

Export Information

Provides jurisdiction and ECCN details for US export.

Agency Certifications

Details UL, CSA, and EN certifications for safety and compliance.

Specifications

Input Power and Current

Specifies required input voltage, transformer class, and current draw for control and valves.

Gas Valve Specifications

Specifies maximum continuous current for main and pilot gas valves.

Operating and Storage Temperatures

Defines the operating and storage temperature ranges for the control.

Flame Sensing and Response

Details flame sensitivity, response time to flame loss, and self-check rate.

Gas Types and Spark Rate

Lists compatible fuel gas types and specifies spark rates for remote and local sensing.

Physical and Environmental Specifications

Provides control dimensions, moisture resistance, and ingress protection ratings.

Ignition Trials and Timings

Lists available ignition trial counts, periods, and pre-purge/inter-purge timings.

Operation Sequences and Lockout

Startup Heat Mode Sequence

Explains the startup process from thermostat call to pilot detection and main valve activation.

Failure to Light Lockout

Details lockout procedures for single and multi-trial models failing to light the pilot.

Flame Failure Re-ignition and Recycle

Describes how the control attempts to relight pilot after flame loss, including retry strategies.

Lockout Recovery Procedures

Explains manual and automatic reset procedures after a lockout condition occurs.

Installation and Wiring

Mounting Guidelines

Details mounting orientation and method, including junction box compatibility.

General Wiring Precautions

Provides essential safety warnings regarding electrical codes, wire labeling, and shock hazards.

Wiring Diagrams

Illustrates wiring configurations for local and remote flame sensing.

Terminal Designations

Lists terminal names, their descriptions, and quick connect sizes.

Troubleshooting and Performance

Troubleshooting Guide

A table guiding users through symptoms, recommended actions, and fault codes.

Fault Conditions and LED Codes

Maps LED indications (Steady On, 2 Flashes, 3 Flashes) to specific fault modes.

Internal Control Failure Diagnosis

Explains the 'Steady On' LED indication and action for internal control failures.

Flame Electrode Placement

Details correct positioning and spacing for optimal flame electrode assembly performance.

Flame Current Measurement

Explains how to measure flame current and its significance for reliable sensing.

Physical Dimensions

Uncovered Control Dimensions

Shows physical dimensions of the control without its enclosure, including mounting holes.

Enclosed Control Dimensions

Shows physical dimensions of the control with its standard enclosure.

Part Number Configuration

Product Designation and Coding

Explains the structure and meaning of part numbers for product variants.

Ignition Trial and Timing Options

Details available selections for ignition trials, inter-purge, and pre-purge timings.

Flame Sense Method and Lockout Reset

Describes options for flame sensing methods and lockout reset types.

Enclosure Configurations

Lists available enclosure types for the control.

Fenwal 35-63 Specifications

General

Brand	Fenwal
Model	35-63
Category	Controller
Language	English