MUA-SVX005B-EN
31
7. With burner drawer removed from duct furnace, inspect the inside surfaces of the heat
exchanger. Wire brush if necessary.
8. Remove any dirt, dust or other foreign matter from the burners using a wire brush and/or
compressed air. Insure all parts of the burner are unobstructed. Inspect and clean pilot burner
if necessary.
9. Reassemble the duct furnace by replacing all parts in order.
10. Light unit per the unit lighting instructions.
11. Check the burner adjustment. See the
“Primary Air Shutter Adjustment,” p. 27
section of this
manual.
12. Check all gas control valves and pipe connections for leaks.
W
WA
AR
RN
NIIN
NG
G
C
Co
om
mb
bu
ussttiib
blle
e M
Ma
atte
erriia
allss!!
F
Fa
aiillu
urre
e tto
o m
ma
aiin
ntta
aiin
n p
prro
op
pe
err cclle
ea
arra
an
ncce
e b
be
ettw
we
ee
en
n tth
he
e u
un
niitt a
an
nd
d cco
om
mb
bu
ussttiib
blle
e m
ma
atte
erriia
allss cco
ou
ulld
d
cca
au
usse
e a
a ffiirre
e w
wh
hiicch
h cco
ou
ulld
d rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y o
orr p
prro
op
pe
errtty
y d
da
am
ma
ag
ge
e..
R
Re
effe
err tto
o u
un
niitt n
na
am
me
ep
plla
atte
e a
an
nd
d iin
nsstta
alllla
attiio
on
n iin
nssttrru
uccttiio
on
nss ffo
orr p
prro
op
pe
err cclle
ea
arra
an
ncce
ess..
13. Check the operation of the duct furnace gas valve by lowering the setting of the thermostat,
stopping the operation of the duct furnace. The duct furnace gas valve should close,
extinguishing the pilot and main burner flames.
14. Inspect and service the blower section of the system.
15. Inspect and check the operational functions of all safety devices equipped with your unit to
ensure that all devices are performing adequately.
High Limit and/or Safety Limit Maintenance
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e a
an
nd
d G
Ga
ass!!
F
Fa
aiillu
urre
e tto
o ttu
urrn
n o
offff g
ga
ass o
orr d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d rre
essu
ulltt iin
n a
an
n e
ex
xp
pllo
ossiio
on
n
o
orr e
elle
eccttrro
occu
uttiio
on
n w
wh
hiicch
h cco
ou
ulld
d rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
T
Tu
urrn
n o
offff tth
he
e g
ga
ass ssu
up
pp
plly
y a
an
nd
d d
diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e d
diisscco
on
nn
ne
eccttss,,
b
be
effo
orre
e sse
errv
viicciin
ng
g tth
he
e u
un
niitt.. F
Fo
ollllo
ow
w p
prro
op
pe
err llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d..
To service or replace high limit and/or safety limit:
1. Turnoff the manual gas valve and electrical power to the unit.
2. To service the High Limit:
a. Remove the Mounting Cover located on the access side of the unit toward the rear (Air
Inlet) of the furnace section. Remove the mounting plate from the side panel of the heat
exchanger. The mounting plate is part of the High Limit; making note of wire locations for
reconnecting.
b. Remove all electrical connections from the High Limit; making note of wire locations for
reconnecting.
c. Reassemble the High Limit by replacing all parts in order; making sure the High Limit is
making proper surface contact when installed.
3. To service the Safety Limit:
a. Remove Mounting Cover located on the access side of the unit toward the front (Air
Outlet) of the furnace section.
b. Remove all electrical connections from the Safety Limit; making note of wire locations for
reconnecting.
c. Reassemble the Safety Limit by replacing all parts in order; making sure the Safety Limit
is making proper surface contact with the side of the heat exchanger.
M
Ma
aiin
ntte
en
na
an
ncce
e
Содержание GGAA
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Страница 47: ...MUA SVX005B EN 47 Motor Electric Data Table 7 Full Load Current in Amperes ...
Страница 50: ...50 MUA SVX005B EN Coil Cabinet Dimensional Data Figure 13 Coil Cabinet Dimensional Data ...
Страница 57: ...MUA SVX005B EN 57 Gas Equipment Start Up ...
Страница 58: ...58 MUA SVX005B EN N No ot te es s ...
Страница 59: ...MUA SVX005B EN 59 N No ot te es s ...