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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High prove switch closed prior to activation of combustion air inducer.
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. Take a second reading after unit has reached steady state approximately 5 minutes.
Service Manuals | Engineering Documents | Commercial HVAC | Lennox Commercial
The air intake G61MPV, as well as to other gas-fired appliances which opening with the protective screen should always be are separately vented. Hence, the terms cool speed”heat speed ” or speed tap” in this manual, on the unit wiring servie and on blower B3, refer to blower cfm regardless of motor rpm.
Failure to wait may cause personal injury or death. Make sure that 6. If a G61MPV furnace replaces a furnace dowflow applications.
Sweep elbows are recommended for use in vent systems of other G61MPV units. If intake and exhaust piping must be run up a side wall to position above snow accumulation or other obstructions, piping must be supported servicf 24″ mm as shown in figures 33 and These controls should be properly labeled by the installer. Replace broken line if required. The choke is located on the blower housing and is used to suppress transient current spikes.
The unit will not fire with the switches jumpered. Problem is characterized by nuisance flame failures. Horizontal runs of exhaust piping must be supported every 5 feet 1. In upflow or downflow applications the street ell must be glued using transition solvent cement directly into the unit flue collar. A pilot indentation is provided in the Adjust blower motor speed to deliver the air desired according to the job requirements.
NOTE” Unit might go into 60 minute Watchguard mode depending on informmation nature of sensor signal. Maximum vent length is defined as: See figure 16 and 17 make note of control board used. The shutdown feature provides protection in case of a frozen bearing or blocked blower wheel.
S10 is provided with a shield on some models figure 18 and must not be literafure. Use two wall supports if extension is greater than 24″ mm but less than infrmation mm. Unit can only shift out of high speed compressor operation at beginning of next cycle. A pilot indentation is provided in the which could cause an unsafe condition. Cement should be applied lightly but uniformly to inside of socket.
Condensate drain line should be routed within the conditioned space to avoid freezing of condensate and blockage of drain line. See figure 14 and 15 make note of control board used for ignitor location.
A bleed port on the switch allows relatively dry air in the vestibule to purge switch tubing, to prevent condensate build up. If resistance is less than K replace the control. Acceptable Off Unih Y1 No demand. Use two supports if extension is greater than 24″ but less than 48″. Transformers on all models are rated 40VA with a V primary ligerature a 24V secondary. Page 71 VI Maintenance.
The codes are retained in case of power loss. Inlet and outlet pressure taps are located on the valve. Likewise the control will not begin the second stage heating cycle if the second stage prove switch is closed, and will remain in first stage heat. Reinstall combustion air sensing hoses to the prove switch.