Lennox G32 SERIES, Информация об устройстве

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1998 Lennox Industries Inc.
Litho U.S.A.
Corp. 9729−L12
G32
Service Literature
revised 03−2003
G32 SERIES UNITS
G32 series units are high−efficiency upflow gas furnaces
manufactured with DuralokPlus
aluminized steel clam
shelltype heat exchangers. G32 units are available in
heating capacities of 75,000 to 125,000 Btuh and cooling
applications up to 5 tons. Refer to Engineering Handbook
for proper sizing.
Units are factory equipped for use with natural gas only. LP
kits are available. All G32−1 through −4 model units feature
the Lennox SureLight
silicon nitride ignition system. G32−5
and later model units feature the SureLight two stage inte
grated control board. The G32 units meet the California Nitro
gen Oxides (NO
x
) Standards and California Seasonal Effi
ciency requirements without modification. All units use a two−
stage gas valve along with a two−stage combustion air blow
er. The gas valve is redundant to assure safety shut−off as re
quired by A.G.A. or C.G.A.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are
subject to change. Procedures outlined in this manual are
presented as a recommendation only and do not super
sede 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 recommended only.
WARNING
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 or service
agency.
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.
TABLE OF CONTENTS
General 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Data 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Altitude 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vent Table 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I Unit Components 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II Placement and Installation 18 . . . . . . . . . . . . . . . . . . . .
III Start Up 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VI Heating System Service Checks 27 . . . . . . . . . . . . . .
V Typical Operating Pressures 29 . . . . . . . . . . . . . . . . . .
VI Maintenance 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VII Wiring Diagrams and Operating Sequence 34 . . . . .
VIII Trouble Shooting Guide SureLight Control 51 . . . . .