4000-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
132 of 154
22.4 Manifold and Controls
22.5 Burner
Manifold
Periodically check gas control assembly and internal and external piping for
leaks. Relief
v
ent lines to o
u
tdoors on gas controls sho
u
ld be checked to
ens
u
re against blockage ca
u
sed by insects or any other s
u
bstance. Clean as
req
u
ired.
All gas piping to the air handler m
u
st comply
w
ith the National F
u
el Gas Code
- NFPA54, latest edition and all local codes. Verify gas so
u
ndness of each
SSOV (Safety Sh
u
t Off Val
v
e). This test m
u
st be repeated after the first 100
ho
u
rs of operation.
See Page 71 through Page 73
,
Figures 55
-
Figure 57
Air Flow Switch
An ann
u
al check of the t
u
bes attached to the air flo
w
s
w
itch sho
u
ld be made
to ens
u
re against blockage ca
u
sed by insects or any other s
u
bstance. Clean
as req
u
ired.
See Page 123, Section 21.4
.
Electric Components
Check for physical damage on any of the electric components and
v
erify all
electrical connections are sec
u
re. Ens
u
re eq
u
ipment is properly gro
u
nded.
Temperature Sensors
Calibrate space, o
u
tdoor air, and discharge air sensors as req
u
ired.
See Page 123, Section 21.2.3
.
An ann
u
al inspection of the b
u
rner and components m
u
st be made to ens
u
re
proper and safe operation. For the most part, the b
u
rner is self cleaning.
Ho
w
e
v
er, if the application is extremely dirty or d
u
sty, it may become neces-
sary to periodically clean the b
u
rner. Inspect and clean the b
u
rner in accor-
dance
w
ith the follo
w
ing recommended proced
u
res:
1. To
a
v
oid damaging the
v
al
v
es, disconnect the b
u
rner piping from the
manifold, at the
u
nion, and co
v
er the exposed end of the manifold.
See
Page 71 through Page 73
,
Figures 55
-
Figure 57
2.
Remo
v
e the pilot assembly.
See Page 78, Section 19.6.4
.
3.
Remo
v
e the ignition cable from the igniter on the side of the b
u
rner, and
then remo
v
e the spark igniter. Clean the igniter contacts
w
ith a
w
ire
br
u
sh. Set the gap to 0.125" (3.17 mm).
4.
Inspect each of the stainless steel mixing plates to see that all of the air
holes are free of debris. Clean
w
ith a
w
ire br
u
sh as necessary.
5.
The b
u
rner orifices may need to be drilled to
u
npl
u
g any closed orifices.
Use a pin
v
ise
w
ith the appropriate drill to clean debris from the orifices.
An electric drill is not s
u
ggested beca
u
se it is easy to snap drill bits off
in the orifices.
6.
Reinstall the pilot assembly. Reconnect the b
u
rner piping to the mani-
fold at the
u
nion.
Summary of Contents for 4044
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Page 73: ...SECTION15 VIBRATION ISOLATION 65 of 154 FIGURE 52 Curb Mounted Roof Curb Roof Curb...
Page 109: ...SECTION19 ELECTRICAL 101 of 154...
Page 110: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 102 of 154...
Page 111: ...SECTION19 ELECTRICAL 103 of 154...
Page 112: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 104 of 154...
Page 113: ...SECTION19 ELECTRICAL 105 of 154...
Page 114: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 106 of 154...
Page 115: ...SECTION19 ELECTRICAL 107 of 154...
Page 116: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 108 of 154...
Page 117: ...SECTION19 ELECTRICAL 109 of 154...
Page 118: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 110 of 154...
Page 119: ...SECTION19 ELECTRICAL 111 of 154...
Page 121: ...SECTION 20 DIRECT FIRED BURNER 113 of 154 FIGURE 71 Midco HMA 2A Burner...
Page 122: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 114 of 154...
Page 125: ...SECTION 20 DIRECT FIRED BURNER 117 of 154...
Page 126: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 118 of 154...
Page 127: ...SECTION 20 DIRECT FIRED BURNER 119 of 154 20 3 Honeywell UV Flame Detector...
Page 160: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 152 of 154...
Page 161: ...SECTION 27 THE RAPID 4000 SERIES WARRANTY 153 of 154...
Page 162: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 154 of 154...
