9
WHL-016 REV. 12.18.14
Do not use petroleum-based cleaning or sealing compounds in boiler system. Gaskets and seals in the system may be
damaged, possibly resulting in substantial property damage.
Do
not use “homemade cures” or “boiler patent medicines”. Substantial
property damage, damage to boiler, and/or serious personal injury may
result.
Continual fresh make-up water will reduce boiler life. Mineral buildup in
the heat exchanger reduces heat transfer, overheats the stainless steel
heat exchanger, and causes failure. Addition of oxygen from make-up
water can cause internal corrosion in system components. Leaks in the
boiler or piping must be repaired at once.
F. BOILER WATER CHEMISTRY
Sodium less than 20mGL.
Water pH between 6 and 8
o
Maintain water pH between 6 and 8. Check with litmus paper or
have it chemically analyzed by water treatment company.
o
If the pH differs from above, consult local water treatment
company for treatment needed.
Hardness less than 7 grains
o
Consult local water treatment companies for unusually hard
water areas (above 7 grains hardness).
Chlorine concentration less than 100 ppm
o
Using chlorinated fresh water should be acceptable as levels are typically less than 5 ppm.
o
Do not connect the boiler to directly heat swimming pool or spa water.
o
Do not fill boiler or operate with water containing chlorine in excess of 100 ppm.
NOTE:
It is recommended to clean heat exchanger at least once a year to prevent lime scale buildup. To clean the heat exchanger,
follow the maintenance procedure in Part 13, Section B of this manual.
ACIDITY
6 to 8 pH
CONDUCTIVITY
Less than 400 uS/cm at 25
o
C
CHLORIDE
Less than 100 ppm
IRON
Less than 0.5 mg/L
COPPER
Less than 0.1 mg/L
SODIUM
Less than 20 mg/L
HARDNESS
Less than 7 Grains
Table 1
– Water Quality Requirements
G. FREEZE PROTECTION FLUIDS
NEVER
use automotive or standard glycol antifreeze, or ethylene glycol made for hydronic systems, with this boiler. Use only inhibited
propylene glycol solutions, which are specifically formulated for hydronic systems. Ethylene glycol is toxic and can attack gaskets and
seals used in hydronic systems.
Consider boiler piping and installation when determining boiler location.
NOTE:
Damages resulting from incorrect installation or from use of products not approved by Westinghouse ARE NOT covered by
warranty.
PART 2 – BEFORE YOU START
A. WHAT’S IN THE BOX
Also included with the boiler:
Temperature and Pressure Gauge (Part #7500P-098)
Pressure Relief Valve (Part #7250P-080 for 055/080/110/155/199, #7350P-066 for 285/399)
Wall Mount Bracket (Part # 7600P-021 for 055/080/110, #7600P-121 for 155/199/285, #7600P-221 for 399)
Indirect Sensor (Part # 7250P-325)
Outdoor Sensor (Part # 7250P-319)
Intake PVC Tee with Screens
Summary of Contents for WBCNG399W
Page 14: ...14 WHL 016 REV 12 18 14 SPECIFICATIONS AND DIMENSIONS Figure 2 Specifications and Dimensions ...
Page 24: ...24 WHL 016 REV 12 18 14 Figure 8 Piping Symbol Legend ...
Page 59: ...59 WHL 016 REV 12 18 14 Figure 32 Cascade Master and Follower Wiring ...
Page 60: ...60 WHL 016 REV 12 18 14 Figure 33 Internal Connection Diagram LP 293 J ...
Page 83: ...83 WHL 016 REV 12 18 14 055 080 110 PARTS BREAKDOWN Figure 36 Replacement Parts LP 387 J ...
Page 85: ...85 WHL 016 REV 12 18 14 155 199 285 399 PARTS BREAKDOWN ...
Page 86: ...86 WHL 016 REV 12 18 14 Figure 38 Replacement Parts LP 387 KK ...
Page 87: ...87 WHL 016 REV 12 18 14 155 199 285 399 MODEL PARTS BREAKDOWN ...
Page 91: ...91 WHL 016 REV 12 18 14 ...
Page 92: ...92 WHL 016 REV 12 18 14 ...
