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Related Manuals for Lennox G32V3-75
Summary of Contents for Lennox G32V3-75
- Page 1 *2P0502* *P504564M*...
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Page 2: Top View
TOP VIEW AIR FLOW 4 (102) 1-15/16 (49) 4 (102) 23 (584) SIDE VIEW FRONT VIEW G32V3-75 16-1/4 14-1/8 2-1/8 7-5/8 12-3/4 G32V5–100 21-1/4 19-1/8 1-5/8 10-1/8 18-3/4 G32V5–125 26-1/4 24-1/8 4-1/8 12-5/8 18-3/4... - Page 4 NOTE - For installation on combustible floors, the furnace shall not be installed directly on carpeting, tile, or other combustible material other than wood flooring.
- Page 5 NOTE - G32V series units must not be used as a construction heater during any phase of construction. Very low return air temperatures, harmful vapors and mis placement of the filters will damage the unit and lower its efficiency.
- Page 6 NOTE - Be careful not to damage insulation. Check for tight seal.
- Page 7 NOTE - For bottom return air, return air duct should be se cured to the unit using rivets or S-locks. For side return air, secure return air duct to filter rack using screws. When using screws, take care to avoid interference with the fil ter which may cause improper filtration.
- Page 8 NOTE - Minimum vent pipe for G32V-75, G32V-100, and G32V-125 is 5 feet with 2 elbows of 2-inch diameter pipe. NOTE - When you install a WTKX termination kit as part of the intake and exhaust piping, the two 2-inch diameter 90°...
- Page 9 NOTE - Assembly should be completed within 20 se conds after last application of cement. Hammer blows should not be used when inserting pipe. NOTE - Time is critical at this stage. Do not allow primer to dry before applying cement.
- Page 10 NOTE - Exhaust piping should be checked carefully to make sure there are no sags or low spots. NOTE - Exhaust piping must be insulated with 1/2 inch (13 mm) Armaflex or equivalent when run through unheated space. Do not leave any area of exhaust pipe open to outside air;...
- Page 11 Also, a heating cable may be installed on exhaust piping and termination to prevent freeze ups. Heating cable installation kit is available from Lennox. See Con densate Piping section for part numbers. NOTE - Avoid recirculation of exhaust back into the in take pipe.
- Page 14 Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï NOTE - Do not discharge exhaust gases directly into any chimney or vent stack. If vertical discharge through an existing unused chimney or stack is required, insert piping inside chimney until the pipe open end is above top of chimney and terminate as illustrated.
- Page 16 4 – NOTE - Install a 1/8 inch NPT plugged tap in the field pip ing upstream of the gas supply connection to the unit. The tap must be accessible for test gauge connection. See figure 24. NOTE - Use two wrenches when connecting gas pip ing to avoid transferring torque to the manifold.
- Page 17 NOTE - Capacity given in cubic feet (m ) of gas per hour and based on 0.60 specific gravity gas.
- Page 20 NOTE - Use dip switch 3 to set second-stage heat ON delay. ON-10 minutes. OFF-15 min utes. NOTE - Use dip switch 3 to set second-stage heat ON delay. ON-10 minutes. OFF-15 min utes.
- Page 21 NOTE - Use dip switch 3 to set second-stage heat ON delay. ON-10 minutes. OFF-15 min utes. NOTE - Use dip switch 3 to set second-stage heat ON delay. ON-10 minutes. OFF-15 min utes.
- Page 22 NOTE - Wiring connec NOTE - tions to outdoor unit and Remove thermostat made at Y1/Y2 jumper FM21 control board per for two-stage FM21 instructions. cooling. *Cut wires at pin positions 2 and 13 of J/P46. Insulate ends to prevent a short. Blower operates on PWM signal generated by Harmony. Harmony overrides blower speed taps.
- Page 23 Select Select SINGLE...
- Page 26 NOTE - Continuous Fan only speed is approximately 800 cfm (380 L/s) - non adjustable. NOTE - Lennox Harmony IIt zone control applications - MAX CFM is determined by COOL switch setting with a minimum of approximately 850 cfm (400 L/s) for all positions.
- Page 27 NOTE - The thermostat jumper on the control board is fac tory-set in the TWO-STAGE" position.
- Page 28 ated by the integrated control if heating demand has not been satisfied after the field adjustable period (10 or 15 minutes). NOTE - In these applications, two-stage heat will be initi...
- Page 29 Plus NOTE - When changing unit mode of operation from cooling to heating, indicating lights that are on will stay on until the first thermostat heating demand. * Reduced blower speed is 77% of COOL for V3 units and 74% of COOL for the V5 units.
- Page 30 Plus Note - During mode of operation change from cooling to heating, indicating lights will not change until the first thermostat heat ing demand. *IMPORTANT If power to unit is turned on with CCB1 calling for humidity removal, outdoor unit may be locked into high speed indefinitely.
- Page 31 Take care to re- place pressure tap plug. NOTE - Pressure test adaptor kit (10L34) is available from Lennox to facilitate manifold pressure measure ment. NOTE - During this test procedure, the unit will be over...
- Page 32 NOTE - In Canada, certification for installations at eleva tions over 4500 feet (1372 m) is the jurisdiction of local au thorities. NOTE - Disconnect power to unit before making any adjustments. NOTE - Do not secure electrical conduit directly to duct ing or structure.
- Page 33 NOTE - Unit is polarity sensitive. 120V supply wiring must be installed correctly.
- Page 34 NOTE - Install the ignitor on the opposite side of the burner from the metal button protrusions. Screws that attached the ignitor bracket must be installed from the same side as the ignitor and through the bracket to engage in the smaller holes located in the burner.
- Page 35 NOTE - Slow flash rate equals 1 Hz (one flash per second). Fast flash rate equals 3 Hz (three flashes per second). Minimum flame sense current = 0.15-0.17 microAmps.
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Page 36: Continued On Next Page
CONTINUED ON NEXT PAGE... - Page 37 CONTINUED CONTINUED ON NEXT PAGE...
- Page 38 CONTINUED NOTE - IF SECOND-STAGE PRESSURE SWITCH WAS ORIGINALLY FOUND CLOSED, ABNORMAL CODE WILL FLASH. CONTINUED ON NEXT PAGE...
- Page 39 CONTINUED...