lp-451 Rev. 001 Rel. 001 Date 7.25.17
5
Figure 2 - Specifications and Dimensions
AUX/RECIRC
RELIEF
VALVE
INLET
OUTLET
THERMOSTAT
CONNECTION
H
G
F
INDIRECT WATER HEATER
MODEL
A
B
C
D
E
F
G
H
CAPACITY
U.S. GAL.
DOMESTIC
CONNECTION
42-1/8"
19-3/8"
5-7/8"
21"
1-3/8"
4"
8"
4"
28 GAL
3/4" NPTM
L
A
G
8
3
"
4
/
1
-
4
5
L
A
G
8
4
"
8
/
5
-
6
6
52-5/8"
23-1/2"
58 GAL
1" NPTM
L
A
G
8
7
"
9
6
M
T
P
N
2
/
1
-
1
L
A
G
8
9
"
4
/
1
-
0
2
"
8
/
1
-
8
"
2
/
1
-
7
2
"
8
/
7
-
0
6
MODEL
HEAT
EXCHANGER
SURFACE
TEST
PRESSURE
WORKING
PRESSURE
180 BOILER
WATER FIRST
HOUR RATINGS
(GAL) *
180 F
BOILER
BTU/SIZE
RECOMMENDED
FLOW RATE
PRESSURE DROP
AT
RECCOMENDED
FLOW
DRY
WEIGHT
140 F
15 SQ. FT.
300 PSI
150 PSI
228
130,000
8 GPM
1.7 FT
95 LBS
18 SQ. FT.
*DOE TEST METHOD BASED ON 77 F TEMPERATURE RISE, 58 / 135 W/BOILER WATER AT 180 F
NOTE: TANK RECOVERY FROM COLD START WILL BE BETWEEN 10-13 MINUTES WHEN SIZED WITH CORRECT FLOW RATE, BOILER SIZE AND
PRESSURE DROP RATINGS FROM LIST IN ABOVE CHART.
CONTINUOUS FLOW RATING CALCULATION:
FIRST HOUR RATING - (.75 * GALLON CAPACITY) = CONTINUOUS FLOW RATING
30 MODEL
LP-451-E
03/29/17
ACCESS COVER
40 / 50 / 60 / 80 / 100 MODELS
BOILER IN
THERMOSTAT
BOILER OUT
D
C
A
B
E
DRAIN VALVE
BOILER IN
B
A
C
D
TOP
VIEW
100
80
60
50
40
30
100
80
60
50
40
30
BOILER OUT
266
155,000
10 GPM
2.3 FT
111 LBS
287
155,000
10 GPM
2.3 FT
127 LBS
303
155,000
10 GPM
2.3 FT
140 LBS
347
175,000
12 GPM
2.3 FT
157.5 LBS
393
195,000
14 GPM
2.3 FT
195 LBS
• Chloride concentration less than 100 ppm (mg/L)
• Do not fill appliance or operate with water containing
chlorides in excess of 100 ppm (mg/L).
• Using chlorinated fresh water should be acceptable as levels
are typically less than 5 ppm (mg/L).
• Do not connect the appliance to directly heat swimming
pool or spa water.
• Total Dissolved Solids (TDS) less than 500 ppm (mg/L)
• Total dissolved solids are minerals, salts, metals, and charged
particles that are dissolved in water.
• The greater the amounts of TDS present, the higher the
corrosion potential due to increased conductivity in the
water.
• If using softened water to fill the appliance, it is still possible
to have high TDS. This water can be corrosive. Consult local
water treatment companies for other treatment solutions to
reduce this affect.
*NOTE:
To promote appliance service life, it is strongly recommended
to follow the maintenance procedures in this manual.