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PRECAUTIONSPRECAUTIONS
PRECAUTIONSPRECAUTIONS
PRECAUTIONS
WARNING
!
Do not shorDo not shor
Do not shorDo not shor
Do not shor
t out tert out ter
t out tert out ter
t out ter
minals onminals on
minals onminals on
minals on
gg
gg
g
as vas v
as vas v
as v
alvalv
alvalv
alv
e or primare or primar
e or primare or primar
e or primar
y contry contr
y contry contr
y contr
ol tool to
ol tool to
ol to
test.test.
test.test.
test.
Shor Shor
Shor Shor
Shor
t or incort or incor
t or incort or incor
t or incor
rr
rr
r
ect wiringect wiring
ect wiringect wiring
ect wiring
will damawill dama
will damawill dama
will dama
gg
gg
g
e there ther
e there ther
e ther
mostamosta
mostamosta
mosta
t andt and
t andt and
t and
could cause percould cause per
could cause percould cause per
could cause per
sonal injursonal injur
sonal injursonal injur
sonal injur
y and/y and/
y and/y and/
y and/
or pror pr
or pror pr
or pr
operoper
operoper
oper
ty damaty dama
ty damaty dama
ty dama
gg
gg
g
ee
ee
e
..
..
.
Do not use on cirDo not use on cir
Do not use on cirDo not use on cir
Do not use on cir
cuits ecuits e
cuits ecuits e
cuits e
xx
xx
x
ceedingceeding
ceedingceeding
ceeding
specified vspecified v
specified vspecified v
specified v
oltaolta
oltaolta
olta
gg
gg
g
ee
ee
e
..
..
.
Higher Higher
Higher Higher
Higher
vv
vv
v
oltaolta
oltaolta
olta
gg
gg
g
e will damae will dama
e will damae will dama
e will dama
gg
gg
g
e contre contr
e contre contr
e contr
ol andol and
ol andol and
ol and
could cause shoccould cause shoc
could cause shoccould cause shoc
could cause shoc
k or firk or fir
k or firk or fir
k or fir
ee
ee
e
hazard.hazard.
hazard.hazard.
hazard.
TT
TT
T
herher
herher
her
mostamosta
mostamosta
mosta
t installat installa
t installat installa
t installa
tiontion
tiontion
tion
and all components of theand all components of the
and all components of theand all components of the
and all components of the
system shall confsystem shall conf
system shall confsystem shall conf
system shall conf
oror
oror
or
m to Class IIm to Class II
m to Class IIm to Class II
m to Class II
circir
circir
cir
cuits per the NEC codecuits per the NEC code
cuits per the NEC codecuits per the NEC code
cuits per the NEC code
..
..
.
TT
TT
T
o pro pr
o pro pr
o pr
ee
ee
e
vv
vv
v
ent electrical shocent electrical shoc
ent electrical shocent electrical shoc
ent electrical shoc
k and/k and/
k and/k and/
k and/
or equipment damaor equipment dama
or equipment damaor equipment dama
or equipment dama
gg
gg
g
ee
ee
e
,,
,,
,
discon- discon-
discon- discon-
discon-
nect electric ponect electric po
nect electric ponect electric po
nect electric po
ww
ww
w
er to system aer to system a
er to system aer to system a
er to system a
tt
tt
t
main fuse or cirmain fuse or cir
main fuse or cirmain fuse or cir
main fuse or cir
cuit brcuit br
cuit brcuit br
cuit br
eakeak
eakeak
eak
er boer bo
er boer bo
er bo
xx
xx
x
until installauntil installa
until installauntil installa
until installa
tion is completetion is complete
tion is completetion is complete
tion is complete
..
..
.
CAUTION
!
WARNING
!
Do not wire HM1 or HM2 fromDo not wire HM1 or HM2 from
Do not wire HM1 or HM2 fromDo not wire HM1 or HM2 from
Do not wire HM1 or HM2 from
therther
therther
ther
mostamosta
mostamosta
mosta
t (24 vt (24 v
t (24 vt (24 v
t (24 v
olts) to HUM onolts) to HUM on
olts) to HUM onolts) to HUM on
olts) to HUM on
ignition contrignition contr
ignition contrignition contr
ignition contr
ol (120 vol (120 v
ol (120 vol (120 v
ol (120 v
olts).olts).
olts).olts).
olts).
NOTE
This thermostat is intended for use
with a low voltage system. Do not use
directly on a line voltage system unless
an isolation relay/transformer is
installed.
Do not exceed the ratings shown in the
Specifications section, preceding page.
If in doubt about the electrical ratings
of your heating/cooling system, have it
inspected by a qualified heating and air
conditioning contractor or licensed
electrician.
All wiring must conform to local and
national electrical codes and ordi-
nances.
This control is a precision instrument,
and should be handled carefully.
Rough handling or distorting compo-
nents could cause the control to
malfunction.
RR
RR
R
ead all instread all instr
ead all instread all instr
ead all instr
uctions thoructions thor
uctions thoructions thor
uctions thor
oughloughl
oughloughl
oughl
yy
yy
y
befbef
befbef
bef
oror
oror
or
e bee be
e bee be
e be
ginning installaginning installa
ginning installaginning installa
ginning installa
tion.tion.
tion.tion.
tion.
Installation/Configuration