Lennox G61MPV Service Manual

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Brand: Lennox

Category: Boiler , Furnace

Type: Service manual for Lennox G61MPV

Pages: 109

Download Lennox G61MPV Service manual

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Page 1
© 2012 Lennox Industries Inc.
Corp. 0310−L7
G61MPV
Service Literature
Revised 02−2012
G61MPV SERIES UNITS
G61MPV series units are high−efficiency multi−position
(upflow, downflow, horizontal right and left) gas furnaces
manufactured with Lennox Duralok Plust heat exchang-
ers formed of an aluminized steel primary with a stainless
steel secondary condensing coil. G61MPV units are avail-
able in heating capacities of 44,000 to 132,000 Btuh
(13.0.0 to 38.6 kW) and cooling applications from 2 to 5
tons (7.0 kW to 17.5 kW). Refer to Engineering Handbook
for proper sizing.
Units are factory equipped for use with natural gas. Kits are
available for conversion to LPG operation. G61MPV model
units are equipped with the two−stage variable speed inte-
grated SureLight® control. All G61MPV units meet the Cali-
fornia Nitrogen Oxides (NO
x
) Standards and California Sea-
sonal Efficiency requirements. All units use a redundant gas
valve to assure safety shut−off as required by C.S.A.
All specifications in this manual are subject to change. Pro-
cedures outlined in this manual are presented as a recom-
mendation only and do not supersede or replace local or
state codes. In the absence of local or state codes, the
guidelines and procedures outlined in this manual (except
where noted) are recommendations only and do not consti-
tute code.
TABLE OF CONTENTS
Specifications Page 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Data Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Identification Page 23. . . . . . . . . . . . . . . . . . . . . . . .
I Unit Components Page 24. . . . . . . . . . . . . . . . . . . . . . .
II Installation Page 50. . . . . . . . . . . . . . . . . . . . . . . . . . . .
III Start Up Page 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV Heating System Service Checks Page 68. . . . . . . . .
V Typical Operating Characteristics Page 71. . . . . . . . .
VI Maintenance Page 72. . . . . . . . . . . . . . . . . . . . . . . . . .
VII Wiring and Sequence of Operation Page 75. . . . . .
VIII Field Wiring and Jumper Setting Page 90. . . . . . . .
IX Control Board Troubleshooting Page 95. . . . . . . . . .
IMPORTANT
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person-
al injury or loss of life. Installation and service must
be performed by a qualified installer, service agency
or the gas supplier.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at discon-
nect switch(es). Unit may have multiple
power supplies.
WARNING
Sharp edges.
Be careful when servicing unit to avoid sharp edges
which may result in personal injury.