Xylem MM 320C User Manual
Series 851, 851-S and 847
Make-Up Water Feeders
Applications:
For receiver tanks in industrial or
commercial applications.
INSTRUCTION MANUAL
MM-320
C
Series 851
WARNING
!
• Before using this product read and understand the installation instructions.
• Save the installation instructions and these maintenance and replacement instructions
CAUTION
ARNING
W
for future reference.
• All work must be performed by qualified personnel trained in the proper application, installation, inspection, and maintenance of HVAC systems in accordance with all applicable
codes and ordinances.
Series 851-S
Series 847
California Proposition 65 warning! This product contains chemicals known to the
•
state of California to cause cancer and birth defects or other reproductive harm.
•
Previous controls should never be installed on a new system. Always install new
controls on a new boiler or system.
Failure to follow this warning could cause property damage, personal inj ury or death.
CAUTION:
•
A more frequent replacement interval may be necessary based on the condition of
the unit at time of inspection. McDonnell Miller s warranty is one (1) year from date
of installation or two (2) years from the date of manufacture.
!
&
'
2
Capacities
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
4,000
lbs./hr.
BOILER
Btu/Hr.
(K-Calories/Hr.)
4,000,000
(15,800)
3,000,000
(11,900)
2,000,000
(7,900)
1,000,000
(4,000)
116
(1137)
87
(853)
58
(569)
29
(284)
16,000
12,000
8,000
4,000
000
BOILER
hp
(Kilowatts)
STEAM
Sq. Ft.
3,000
2,000
1,000
0
psi
(1814)
(kg/hr.)
(1361)
(907)
(454)
(0)
0102030405060708090100
(kg/cm
2
)
(0) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
C
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apacity
FEEDER DISCHARGE
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
10,000
lbs./hr.
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
0psi 10 20 30 40 50 60 70 80 90 100
(0)(kg/cm
2
) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
(4536)
(kg/hr.)
STEAM
Sq.Ft.
BOILER
hp
(Kilowatts)
40,000
36,000
32,000
28,000
24,000
20,000
16,000
12,000
8,000
4,000
0
290
(2843)
261
(2559)
232
(2274)
203
(1990)
174
(1706)
145
(1421)
116
(1137)
87
(853)
58
(569)
29
(284)
0
(4082)
(3629)
(3175)
(2722)
(2268)
(1814)
(1361)
(907)
(454)
(0)
FEEDER DISCHARGE
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
10,000
lbs./hr.
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
0psi 10 20 30 40 50 60 70 80 90 100
(0)(kg/cm
2
) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
(4536)
(kg/hr.)
STEAM
Sq.Ft.
BOILER
hp
(Kilowatts)
40,000
36,000
32,000
28,000
24,000
20,000
16,000
12,000
8,000
4,000
0
290
(2843)
261
(2559)
232
(2274)
203
(1990)
174
(1706)
145
(1421)
116
(1137)
87
(853)
58
(569)
29
(284)
0
(4082)
(3629)
(3175)
(2722)
(2268)
(1814)
(1361)
(907)
(454)
(0)
M
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Max. Water Supply Max. Valve
Series Pressure, psi Pressure, psi
851 150 35
851-S 100 35
847 150 25
Operation
Series 851
Series 847
Series 851-S
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