Warning, Caution ! warning, Precautions – Emerson 1F97-391 User Manual
Page 7: Installation/configuration

5
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
WARNING
!
Do not shor
Do not shor
Do not shor
Do not shor
Do not short out ter
t out ter
t out ter
t out ter
t out terminals on
minals on
minals on
minals on
minals on
g
g
g
g
gas v
as v
as v
as v
as valv
alv
alv
alv
alve or primar
e or primar
e or primar
e or primar
e or primary contr
y contr
y contr
y contr
y control to
ol to
ol to
ol to
ol to
test.
test.
test.
test.
test. Shor
Shor
Shor
Shor
Short or incor
t or incor
t or incor
t or incor
t or incorrrrrrect wiring
ect wiring
ect wiring
ect wiring
ect wiring
will dama
will dama
will dama
will dama
will damag
g
g
g
ge ther
e ther
e ther
e ther
e thermosta
mosta
mosta
mosta
mostat and
t and
t and
t and
t and
could cause per
could cause per
could cause per
could cause per
could cause personal injur
sonal injur
sonal injur
sonal injur
sonal injury and/
y and/
y and/
y and/
y and/
or pr
or pr
or pr
or pr
or proper
oper
oper
oper
operty dama
ty dama
ty dama
ty dama
ty damag
g
g
g
ge
e
e
e
e.....
Do not use on cir
Do not use on cir
Do not use on cir
Do not use on cir
Do not use on circuits e
cuits e
cuits e
cuits e
cuits ex
x
x
x
xceeding
ceeding
ceeding
ceeding
ceeding
specified v
specified v
specified v
specified v
specified volta
olta
olta
olta
oltag
g
g
g
ge
e
e
e
e..... Higher
Higher
Higher
Higher
Higher
v
v
v
v
volta
olta
olta
olta
oltag
g
g
g
ge will dama
e will dama
e will dama
e will dama
e will damag
g
g
g
ge contr
e contr
e contr
e contr
e control and
ol and
ol and
ol and
ol and
could cause shoc
could cause shoc
could cause shoc
could cause shoc
could cause shock or fir
k or fir
k or fir
k or fir
k or fire
e
e
e
e
hazard.
hazard.
hazard.
hazard.
hazard.
T
T
T
T
Ther
her
her
her
hermosta
mosta
mosta
mosta
mostat installa
t installa
t installa
t installa
t installation
tion
tion
tion
tion
and all components of the
and all components of the
and all components of the
and all components of the
and all components of the
system shall conf
system shall conf
system shall conf
system shall conf
system shall confor
or
or
or
orm to Class II
m to Class II
m to Class II
m to Class II
m to Class II
cir
cir
cir
cir
circuits per the NEC code
cuits per the NEC code
cuits per the NEC code
cuits per the NEC code
cuits per the NEC code.....
T
T
T
T
To pr
o pr
o pr
o pr
o pre
e
e
e
ev
v
v
v
vent electrical shoc
ent electrical shoc
ent electrical shoc
ent electrical shoc
ent electrical shock and/
k and/
k and/
k and/
k and/
or equipment dama
or equipment dama
or equipment dama
or equipment dama
or equipment damag
g
g
g
ge
e
e
e
e,,,,, discon-
discon-
discon-
discon-
discon-
nect electric po
nect electric po
nect electric po
nect electric po
nect electric pow
w
w
w
wer to system a
er to system a
er to system a
er to system a
er to system attttt
main fuse or cir
main fuse or cir
main fuse or cir
main fuse or cir
main fuse or circuit br
cuit br
cuit br
cuit br
cuit break
eak
eak
eak
eaker bo
er bo
er bo
er bo
er box
x
x
x
x
until installa
until installa
until installa
until installa
until installation is complete
tion is complete
tion is complete
tion is complete
tion is complete.....
CAUTION
!
WARNING
!
Do not wire HM1 or HM2 from
Do not wire HM1 or HM2 from
Do not wire HM1 or HM2 from
Do not wire HM1 or HM2 from
Do not wire HM1 or HM2 from
ther
ther
ther
ther
thermosta
mosta
mosta
mosta
mostat (24 v
t (24 v
t (24 v
t (24 v
t (24 volts) to HUM on
olts) to HUM on
olts) to HUM on
olts) to HUM on
olts) to HUM on
ignition contr
ignition contr
ignition contr
ignition contr
ignition control (120 v
ol (120 v
ol (120 v
ol (120 v
ol (120 volts).
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.
R
R
R
R
Read all instr
ead all instr
ead all instr
ead all instr
ead all instructions thor
uctions thor
uctions thor
uctions thor
uctions thoroughl
oughl
oughl
oughl
oughly
y
y
y
y
bef
bef
bef
bef
befor
or
or
or
ore be
e be
e be
e be
e beginning installa
ginning installa
ginning installa
ginning installa
ginning installation.
tion.
tion.
tion.
tion.
Installation/Configuration