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ECM OPERATION MANUAL
: IF YOU DO NOT FOLLOW THE SAFETY PRECAUTIONS BELOW AND IN THIS MANUAL, A
FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF
LIFE.
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER APPLIANCE.
INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY
OR THE GAS SUPPLIER. (REFERRED TO IN THESE INSTRUCTIONS AS A QUALIFIED HEATING
CONTRACTOR).
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE
HOMEOWNER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE
PERSONNEL.
MO-507
ECN 5577-MA 190924
FOR USE WITH MODELS:
OL11-105FDBE
OL11-105RDBE
THERMO PRODUCTS, LLC.
BOX 237
DENTON, NC 27239
PHONE: 800-476-4328
OL16-125FDBE
OL16-125RDBE
MADE IN USA
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Related Manuals for Thermo Pride OL11-105FDBE
Summary of Contents for Thermo Pride OL11-105FDBE
- Page 1 ECM OPERATION MANUAL FOR USE WITH MODELS: OL11-105FDBE OL16-125FDBE OL11-105RDBE OL16-125RDBE : IF YOU DO NOT FOLLOW THE SAFETY PRECAUTIONS BELOW AND IN THIS MANUAL, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.
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Page 3: Table Of Contents
All installations and services must be performed by qualified service personnel. INDEX SECTION BEGINNING PAG BLOWER CONTROL INFORMATION A. TERMINAL DEFINITIONS & FIELD WIRING B. WIRING & SWITCHES C. INPUTS D. OUTPUTS E. OPERATING MODES F. CFM TABLES G. ECM SPECIFIC REPLACEMENT PARTS III. -
Page 4: Blower Control Information
All installations and services must be performed by qualified service personnel. I. BLOWER CONTROLLER INFORMATION A. TERMINAL DEFINITIONS & FIELD WIRING Burner Harness Connector P1 Pin 1 – Limit switch connection. Pin 2 – 120 VAC Line connection. Pin 3 – Burner pilot contact. -
Page 5: Wiring & Switches
All installations and services must be performed by qualified service personnel. B. WIRING & SWITCHES OL11/OL16 LOWBOY Figure 1: BLOWER WIRING... - Page 6 All installations and services must be performed by qualified service personnel. : TURN OFF THE ELECTRICAL POWER to the furnace before attempting to disconnect blower wiring. BLOWER Figure 2: BOARD LAYOUT WITH SWITCHES...
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Page 7: Inputs
All installations and services must be performed by qualified service personnel. C. Inputs Power supplies Line voltage is applied between the "S1" and "N1" quick connect terminals. 24 VAC Class II Transformer secondary voltage supplied to X and C Limit Switch The 120VAC optically isolated limit switch input is connected on pin P2-1 &... -
Page 8: Operating Modes
All installations and services must be performed by qualified service personnel. The switched 120VAC power from the LIMIT switch passes through the board between Pins 1&2 of connector P1. Compressor contactor The control provides switched 24VAC to operate a compressor contactor. Rating shall be class 2 - 24 VAC pilot duty @ 24 VAC (<... - Page 9 All installations and services must be performed by qualified service personnel. When the call for cool is satisfied, the “CC” terminal is de-energized and the cooling off delay of 45 seconds is started. Forty-five seconds later the blower speed ramps toward zero and the control reverts to Standby Mode. Dehumidification Operation If a call for dehumidification is received while the Cool Mode is active, blower speeds will be reduced.
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Page 10: Cfm Tables
All installations and services must be performed by qualified service personnel. executed prior to the control switching into a cooling mode. In the case where a call for fan “G” already exists and either a “W” or a “Y” call is initiated, the blower speed will switch to the respective “W” or a “Y”... -
Page 11: Ecm Specific Replacement Parts
All installations and services must be performed by qualified service personnel. COOLING SPEEDS HEATING SPEEDS & TEMPERATURE RISE OL16 OL16 SW 1 switches °F Rise switches Tons COOL DEHUM 3-ON 1420 6-OFF 2-OFF 5-OFF 1-OFF 4-OFF 3-ON 1560 6-OFF 2-OFF 1200 5-OFF 1-ON... -
Page 12: Ecm Troubleshooting
All installations and services must be performed by qualified service personnel. III. ECM TROUBLE SHOOTING A. DIAGNOSTC FEATURES The control board is equipped with 4 green Input Status LEDs and 1 red Board Status LED. These are intended to provide a quick view into furnace performance without requiring a voltmeter. The green Input Status LEDs are driven by the “Y”, “W”, “G”, and “DEHUM”... - Page 13 All installations and services must be performed by qualified service personnel. Stays at low CFM despite system call for cool or Check low voltage (T’stat) wires and connections heat CFM Verify fan is not in delay mode – wait until delay complete ...
- Page 14 All installations and services must be performed by qualified service personnel. Moisture Check Connectors are orientated “down” (or as recommended by equipment manufacturer) Arrange harnesses with “drip loop” under motor Is condensate drain plugged? Check for low airflow (too much latent capacity) Check for undercharged condition ...
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Page 15: Troubleshooting Charts
All installations and services must be performed by qualified service personnel. C. TROUBLESHOOTING CHARTS THIS GUIDE SHOULD BE USED IN THE CASE OF A STOPPED OR MANFUNCTIONED ECM BLOWER MOTOR. THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF MALFUNCTION OR DEVIATION FROM THE NORMAL BLOWER OPERATION. TO USE THIS DIAGRAM, YOU JUST NEED TO FOLLOW THE INSTRUCTIONS IN THE BOXES. - Page 16 All installations and services must be performed by qualified service personnel. Sequence of Operation BLOWER Off- Delay Active? HEAT On-Delay LIMIT Mode On? Ended? Active? Active? 1.BURNER Off BURNER On 2. HEAT mode Off 3. BLOWER Off-Delay Started 4. Status LED Off DEHUM COOL On-Delay...
- Page 17 All installations and services must be performed by qualified service personnel. Sequence of Operation Glossary Inputs: LIMIT - 120vac power from the High Limit Switch used to power the burner. W- Switched 24vac indicating a Heat call from the thermostat. Y - Switched 24vac indicating a Cool call from the thermostat.
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