Parts
9-56
750-211 (revised 2009)
Promethean Boilers, Model 4WI Manual
9.2.42 — Water Column Piping: 78”-85”, 250-400 HP
M.M. #750
A.L.W.C.O.
9
25
25
OR
2
6
2
8
2
7
A.L.W.C.O. M D. M.
& WARRICK 3K
A.L.W.C.O. MAGNETROL
A.L.W.C.O. WARRICK 3C
2
5
2
5
A.L.W.C.O.
2
5
3
2
7
10
24
23
8
6
2
0
1
9
1
8
1
1
4
1
L.W.C.O. MAGNETROL 300#
DETAIL "A-A"
21
4
23
10
5
7
L
C
L
C
3
2
3
L.W.C.O. CASTING MARK
HW ONLY
C
L
2
29
25
4
2
4
1
9
1
8
1
1
2
0
VALVE, TEST-N-CHECK
CONTROL, L.W.C.O. MM 63B
CONTROL, L.W.C.O. WARRICK C2
817-746
817-2372
941-22231
2
34
1
1
"B"
CONTROL, L.W.C.O. MM 150B
W/ TEST-N-CHECK
OPTIONAL EXTERNAL L.W.C.O.
DETAIL "A-A"
817-981
0-125# HW
1
REF.
HW ONLY2
"B"
26-3/8"
25"
300# ST
ALL HW
"A-A"
L.W.C.O.
SEE DETAIL
27-7/8"
31"
1
9
78" 4WG
DIMENSION TABLE
26-1/8"
26-1/8"
22-1/4"
200-250# ST
PRESSURE
150# ST
15# ST
85" 4WG
23-3/4"
27-5/8"
27-5/8"
3
2
0
34
4
1
2
1
1
1
8
3
4
1
8
2
0
1
1
1
9
DETAIL "A-A"
L.W.C.O. M D. M.
L.W.C.O. MAGNETROL 15 - 250#
1
8
2
0
1
0
22
8
6
21
4
1
9
1
1
5
7
8
6
21
4
1
4
C
DETAIL "A-A"
3
DETAIL "A-A"
1
2
4
2
4
C
O
N
T
R
O
L
1
0
2
1
P
A
N
E
L
5
7
8
6
21
11
19
20
18
LEVEL MASTER
1
4
4
L.W.C.O. M.M.#750 "HW"
DETAIL "A-A"
4
1
3
30
POWER ON
ERROR
MENU
RESET
32
2
33
2
31
5