Lennox G43UF SERIES - Page 26

A WARNING
D;lflOt:lr or EquiprnC:'111 fJ'IfTlEl!.jc. Avoid de.:-p vacuum
opemtlon. Dc. not L1Ml (;nrrlrHf;~;SDr:-; 10 lwm:u;.ltc 1I
sy:>lcm. Extremely low vacuums can cause internal
arCIl'tj dTid comprc's~;or fwlurc. Do1f11aql? Cdllse'J I)y
dt:!t:!p vacuulIl O!.HJr'ltiol1 will voirJ warrmitv.
ACAUTION
BraLinq alloy\? and filiI( cont3in IlL11p.rial~; which ,Ire
I'If:t;:'-H(fclll~; 10 Y(.l~lr tlcull.h
Avai,j !)I·e.1I1'lir,g vapor!; or funK's from l)razin~1
operCltrolls. fJeliorrn ()per.~tl(jnf; nfll\, in wull vClllil8lt::d
areas
Wear gloves amJ protp.r.tivp. UO(J(JIC'3 or fZleG sl1r.:-ld to
prolecl U!Fli11'31 burl1~,
Wi1~;I'1 Il;,ncl~. wil h ~.;("';.lp und W8t'~1 after 11alKllin9 1)1 i'lZill\J
;'''()Y'~; and rll.l.x,
Evacuating the system of non-condensables is critical for
proper operation of the unit. Non-condensables are
defined as any gas that will not condense under
temperatures and pressures present during operation of
an air conditioning system. Non-condensables and water
suction combine with refrigerant to produce substances
that corrode copper piping and compressor parts.
A IMPORTANT
In lhe U.S.A., wiring must conform with CUfrenl. local codes
and the current National Electric Code (NEC). In Canada,
wiring must oonform with current local codes and the ament
Canadian Electrical Code (CEC).
Refer to the furnace or air handler installation instructions
for additional wiring application diagrams and refer to unit
nameplate for minimum circuit ampacity and maximum
overcurrent protection size.
24VAC TRANSFORMER
Use the transformer provided with the furnace or air
handler
for low-voltage control power (24VAC - 40 VA
minimum)
SIZE CIRCUIT AND INSTALL SERVICE
DISCONNECT SWITCH
Refer 10 thll unll1\9mepl<!lte lor minimum circuit ampaclty, and mexlmum
fuse or circuli brllakar (HACR per NEe). Install power wiring and properly
sized dlsoonn9Cl swlle"'.
NOTE - Units are approved for vstJ only w/lh COpper conductors.
Grovnd vnlt at dIsconnect
swl/Ch or to an earth grovnd.
INSTALL THERMOSTAT
''''$1811 room Ihermostat (ordered sQparatQly) on an inside wall
llPproxlmalelyin the oenter of 1118 oondilioned ama and 5 reet (1.5m) from
the lloor. II should not btIlnslalied on an oul61de wall or where it can be
allec(ed by sunlighl or drafts.
NOTE - 24VAC, Class /I circtJlI connl/ction. afIJ madIJ in the conlrol
penIJ/.
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13ACX SERIES
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