Thermo Pride OH16-125 Operation Manual
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Thermo Pride OH16-125 Operation Manual

Thermo Pride OH16-125 Operation Manual

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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-460
ECN 5577-MA 190924
FOR USE WITH MODELS:
OL16-125
OL20-151
OH16-125
THERMO PRODUCTS, LLC.
BOX 237
DENTON, NC 27239
PHONE: 800-476-4328
MADE IN USA

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Summary of Contents for Thermo Pride OH16-125

  • Page 1 ECM OPERATION MANUAL FOR USE WITH MODELS: OL16-125 OL20-151 OH16-125 : 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.

  • 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 All installations and services must be performed by qualified service personnel. "CC_COM" Compressor Contactor Common...

  • Page 6: Wiring & Switches

    All installations and services must be performed by qualified service personnel. B. WIRING & SWITCHES OH16/OL16/20 LOWBOY Figure 1: BLOWER WIRING : TURN OFF THE ELECTRICAL POWER to the furnace before attempting to disconnect blower wiring.
  • Page 7 All installations and services must be performed by qualified service personnel. BLOWER Figure 2: BOARD LAYOUT WITH SWITCHES...

  • Page 8: 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 9: Operating Modes

    All installations and services must be performed by qualified service personnel. Compressor contactor The control provides switched 24VAC to operate a compressor contactor. Rating shall be class 2 - 24 VAC pilot duty @ 24 VAC (< 200mA). EAC (electronic air cleaner) The control provides a 120VAC output for an electronic air cleaner.
  • Page 10 All installations and services must be performed by qualified service personnel. Dehumidification Operation If a call for dehumidification is received while the Cool Mode is active, blower speeds will be reduced. The speed value will be selected from the DEHUM column of the CFM Tables. This input may only be used on systems using a thermostatic expansion valve (TXV) on the evaporator.

  • Page 11: Cfm Tables

    All installations and services must be performed by qualified service personnel. Six dip switches select Speed values for heat, cool, fan and dehumidification blower speeds (see the CFM Tables). Blower On and Off Delays Four Heat blower on and four blower off delays are selected by two dip switches for each function. Refer to Table 1 for specific delay values.

  • Page 12: Ecm Specific Replacement Parts

    All installations and services must be performed by qualified service personnel. COOLING SPEEDS HEATING SPEEDS & TEMPERATURE RISE OL-20 OL20 SW 1 switches °F Rise switches Tons COOL DEHUM 3-ON 1650 6-OFF 2-OFF 5-OFF 1-OFF 4-OFF 3-ON 1800 6-OFF 2-OFF 1170 5-OFF 1-ON...

  • Page 13: General Guidelines To Troubleshooting Ge Ecm

    All installations and services must be performed by qualified service personnel. It will flash rapidly while120VAC is missing from the LIMIT switch. This is intended to give a quick visual indication of the High LIMIT switch. B. GENERAL GUIDELINES TO TROUBLESHOOTING GE ECM – DRIVEN SYSTEMS Disconnect power from unit before removing or replacing connectors, or servicing motor.
  • Page 14 All installations and services must be performed by qualified service personnel. Excessive noise  Determine if it’s air noise, cabinet, duct or motor noise – interview customer, if necessary  Noisy blower or cabinet  Check for loose blower housing, panels, etc. ...
  • Page 15 All installations and services must be performed by qualified service personnel. Figure 3: ECM PIN CONNECTORS Troubleshooting table above and Figure 2 adapted from GE Industrial Systems publication GED-7161C, “Troubleshooting GE ECM – Driven Systems”.

  • Page 16: 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 17 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 18 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.

This manual is also suitable for:

Ol20-151Ol16-125

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