4000-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
98 of 154
1.
Timed pre-pur
g
e
This m
u
st be a separate p
u
rge from the rest of
the system. The trial for ignition m
u
st be
delayed by 7 seconds
w
hile the blo
w
er in the
u
nit is r
u
nning. This is to g
u
arantee that there
are no comb
u
stible gases or
v
apors present in
the air stream d
u
ring b
u
rner ignition and light
off.
2.
Trial for i
g
nition
The length of time m
u
st be fixed at 10 seconds.
This is to pre
v
ent the ignition mod
u
le from con-
tin
u
ing acti
v
ating the spark electrode if a haz-
ardo
u
s malf
u
nction takes place.
3.
Non recycle
This feat
u
re pre
v
ents the flame safeg
u
ard con-
trol from trying to re-light the b
u
rner if it sho
u
ld
fail d
u
ring the ignition cycle or firing cycle.
Instead it goes directly to a locko
u
t condition
and the flame safeg
u
ard
w
ill need to be man
u
-
ally reset.
The M4RT1 has a series of 8 j
u
mpers that are
u
sed
to config
u
re the P
u
rge timing, Pilot Trial for Ignition
(PTFI) timing, and recycle or non-recycle operation.
See Page 98, Figure 70
.
Pur
g
e Timin
g
• J
u
mpers JP1 thro
u
gh JP5 are
u
sed to select the
p
u
rge timing for the M4RT1. The a
v
ailable p
u
rge
timing selections are 5, 7, 30, 60, and 240
seconds and any additi
v
e combination of those
times. Selecting t
w
o or more p
u
rge timing
j
u
mpers
w
ill res
u
lt in a p
u
rge time period eq
u
al to
the s
u
m of the j
u
mpers selected. Selection of a
p
u
rge time is accomplished by c
u
tting or not
installing the associated j
u
mper. The factory set,
defa
u
lt p
u
rge time of 5 seconds (JP1 not installed)
is al
w
ays selected.
See Page 98, Table 33
lists all
a
v
ailable p
u
rge times and ho
w
to select those by
c
u
tting j
u
mpers JP2 thro
u
gh JP5.
FIGURE 70: Jumper Locations
Table 33: Jumper Settin
g
s
Pur
g
e Time (seconds)
JP2
JPS
JP4
JP5
5
Installed
Installed
Installed
Installed
12
C
u
t
Installed
Installed
Installed
35
Installed
C
u
t
Installed
Installed
42
C
u
t
C
u
t
Installed
Installed
65
Installed
Installed
C
u
t
Installed
Jumpers
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...
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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...
