G61MPV UNIT INFORMATION SERVICE LITERATURE PDF

Exhaust Pipe Venting Information . Manual reset switches are factory installed on burner box. after unit lockout, eliminating nuisance calls for service. Repair Parts List. 69 Refer to Engineering Handbook for additional information. **Consider . G61MPV units are CSA International certified to ANSI. Z Installation and service must be per- formed by a information, consult material safety data sheets available shut off the manual gas valve to the furnace before shutting off . G61MPV units are equipped with a SureLight® ignition sys- tem.

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The cfm remains relatively stable over a broad range of static pressure.

Page 71 VI Maintenance. Page 64 12″ mm MAX. In Direct Vent applications, combustion air is taken from outdoors and the flue gases are discharged to the outdoors. Reconnect exhaust piping and exhaust drain tubing. Refer to blower tables at the front of this manual for corresponding cfm values.

Inofrmation 5 tries the control diagnostics flash the watchguard burners failed to ignite code. In upflow or downflow applications, the reducing ell must be glued using transition solvent cement directly into the unit flue collar.

Make sure that 7. Jack J48 is the power plug and jack J49 connects the unit controls to the motor.

LENNOX G61MPV SERVICE MANUAL Pdf Download.

Be careful when servicing unit to avoid sharp edges. If switch is closed or jumpered, the control will not initiate ignition at start up.

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Replace broken line if required. Gas Valve GV1 8. Lennox recommends avoiding this location if possible. Inches mm 3″ 76mm MAX. If resistance does not read between 25 and 47 ohms, replace the ignitor. The unit control indicates the desired cfm. Blower immediately changes speed in response to thermostat demand. One blink equals approximatley CFM. Maintenance Set burner box assembly aside.

Route informaiton to outside of structure. The shutdown feature provides protection in case of a frozen bearing or blocked blower wheel. Acceptable Humidity level rises significantly 2 or more above setpoint. The manifold pressure may require adjustment to ensure proper operation at higher altitudes.

Refer to figure 26 for pipe sizes.

If no power, check wire and connections. When servicing controls, label all wires prior to disconnecting.

G61MPV Service Literature G61MPV SERIES UNITS |

Condensate should flow freely during operation of furnace. Therefore, the prove switches must be bypassed after the combustion air inducer is activated.

Once demand is met, motor ramps down to stop. The codes are retained in case of power loss.

Lennox G61MPV Service Manual

Motor Start-Up When B3 begins start-up, the motor gently vibrates back and forth for a moment. Isolate piping at the point where it exits the outside wall or roof in order to prevent transmission of vibration to the structure. The capacitors take approximately 5 minutes to discharge when the disconnect is opened. Replace prove switch and determine if unit will operate. If a G61MPV furnace replaces a furnace which was commonly vented with another gas appliance, the size of the existing vent pipe for that gas appliance must be checked.

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Be careful when servicing unit to avoid sharp edges which may result in personal injury. Exhaust and air intake pipes Check the exhaust and air intake pipes and all connections for tightness and to make sure there is no blockage. If resistance is less than K replace the control.

A pressure hose is connected from the burner box to the gas valve. The following scale shows the relative pH of some common liquids as compared with condensate of G61MPV units. The purpose of the switch is to srrvice burner operation if the combustion air inducer is not operating or if the flue becomes obstructed. Kits include burner orifices and a gas valve regulator conversion kit.

SPST manual-reset limit connected in series with the primary limit S The air flow is determine by counting blinks between two 2 second pauses. The SureLight ignitor is made ibformation durable silicon nitride.