44
Series 49
Installation, Operating & Service Instructions
111368-04 - 1/22
13
Service and Maintenance
(continued)
CAUTION
IF, DURING NORMAL OPERATION, IT IS
NECESSARY TO ADD MORE WATER THAN
INDICATED BELOW. CONSULT A QUALIFIED
INSTALLER OR SERVICE AGENCY TO CHECK
YOUR SYSTEM FOR LEAKS.
Boiler Model Number
Gallons
Month
Gallons per Year
49-075S
0.01
0.13
49-100S
0.01
0.13
49-125S
0.01
0.15
49-150S
0.01
0.15
49-175S
0.01
0.17
49-200S
0.01
0.17
49-250S
0.02
0.20
49-299S
0.02
0.21
49-350S
0.02
0.23
49-399S
0.02
0.25
49-450S
0.02
0.27
49-500S
0.02
0.29
49-550S
0.03
0.31
Based on maximum leak rate of 2% steamable water
per month
NOTICE:
When substantial amount of make-
up water is used due to lost condensate, or
when make-up water is hard or corrosive, water
treatment is required. Contact qualified water
treatment company for recommended water
treatment compounds and procedures.
Constituent
Make-up Water
Boiler Water
Chlorides
≤ 30 mg/L (ppm)
≤ 100 mg/L (ppm)
Hardness (as a CaCO
3
)
≤ 100 mg/L (ppm)
≤ 200 mg/L (ppm)
pH
7.0 ≤ pH ≤ 11.0
!
Table 13-1: Steam Boiler Water Quality Criteria
Concentration Limits for Make-up Water and Boiler Water
