12
gallon (85 mg/L) may be over softened.
• Consult local water treatment companies for unusually
hard water areas (above the required amounts) or for
other treatment solutions if water is being over softened
(below 5 grains/gallon [85 mg/L]).
•
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.
B
C
MODEL
A
1000
72-1/2" 20-1/2"
1700
72-1/2" 20-1/2"
MODEL
1000
100,000 - 1,000,000
1700
170,000 - 1,700,005 1,599,705 1,391,743
NOTE: ALL DIMENSIONS ARE APPROXIMATE AND HEIGHTS DO NOT INCLUDE ADJUSTABLE LEGS.
Figure 4 - Boiler Dimensions - NOTE: All Dimensions Are Approximate
whl-428-r1 Rev. 001 Rel. 012 Date 7.21.20
A
D
E
F
G
H
J
K
B
C
D
E
42"
13-3/4" 8-3/8"
42"
13-3/4" 8-3/8" 64-1/2" 8-1/4"
GROSS
NET I=B=R
BTU/HR RANGE
OUTPUT
BTU/HR
BTU/HR
941,000
818,670
•
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 effect.
*NOTE: It is recommended to clean the heat exchanger at least once
a year to prevent lime scale buildup. To clean the heat exchanger,
follow the maintenance procedure in this manual.
L
M
F
G
H
J
46"
6"
13-5/8" 14-1/2" 33-1/4" 43-3/4" 66-3/4" 63-1/4" 43-3/8" 10-5/8"
20"
18-3/4" 43-1/2" 62-3/8" 88-1/2" 63-1/4"
BOILER
THERMAL
SUPPLY/RETURN
WATER
EFFICIENCY
CONNECTION
(GAL.)
94.1 %
8.4
94.1 %
11.6
N
O
P
K
L
M
N
GAS
VENT
CONNECTION
DIA.
3"
2"
6"
3"
2-1/2"
8"
O
P
59"
10-5/8"
SHIPPING
WEIGHT
1010
1160
LP-428-C
LP-428-C
04/02/18
04/02/18