Install Instructions

128 103448-08- 9/16
b. McDonnel & Miller 751 (80160718). Refer to
instructions manual provided with control.
i. Annual. Inspect probe for scale build-up.
Test operation. See System Start-up.
ii. Every 10 years. Replace probe.
iii. Every 15 years. Replace control.
c. Flush any eld-sourced oat low water cutoff per
manufacturer’s instructions.
17. Follow Section IX “System Start-up” before leaving
installation.
18. Perform the combustion test outlined in Section
IX “System Start-up”.
D. Recommended Heating System Water
Treatment Products:
1. System Cleaning and Conditioning:
a. The following heating system water treatment
products are recommended for an initial existing
heating system sludge removal, initial boiler
cleaning from copper dust, ux residue and any
boiler debris and for preventive treatment as
corrosion/scale inhibitors:
i. Fernox™ Restorer (universal cleaner, sludge
remover, scale remover, ux residue/debris
remover, corrosion inhibitor)
ii. Fernox™ Protector (Alphi 11, CH#, Copal)
(sludge remover, corrosion inhibitor)
Follow manufacturer application procedure
for proper heating system/boiler cleaning and
preventive treatment.
Above referenced products are available from
Alent plc, Consumer Products Division, 4100
6
th
Avenue, Altoona, PA 16602, Tel: (972)
547-6002 and/or selected HVAC distributors.
Contact U.S. Boiler Company for specic
details.
iii. Sentinel
®
X400 System Restorer (For Older
Closed Loop Hydronic Heating Systems)
XI. Service and Maintenance (continued)
Figure 47: Condensate Overow Switch Orientation
iv. Sentinel
®
X300 System Cleaner (For New
Heating Systems)
v. Sentinel
®
X100 Inhibitor (For Protecting
Closed Loop Hydronic Heating Systems
Against Lime scale And Corrosion)
Follow manufacturer application procedure
for proper heating system/boiler cleaning and
preventive treatment.
Above referenced products are available from
Douglas Products and Packaging, 1550 E. Old 210
Highway, Liberty, MO 64068, Tel:[phone]
(Toll Free) and/or selected HVAC distributors.
2. System Freeze Protection:
a. The following heating system freeze protection
products are recommended for Alpine boilers:
i. Fernox™ Protector Alphi 11 (combined
antifreeze and inhibitor).
Follow manufacturer application procedure to insure
proper antifreeze concentration and inhibitor level.
Above referenced product is available from Alent
plc, Consumer Products Division, 4100 6
th
Avenue,
Altoona, PA 16602, Tel: [phone] and/or
selected HVAC distributors. Contact U.S. Boiler
Company for specic details.
ii. Sentinel
®
X500 Inhibited Antifreeze
(combined antifreeze and inhibitor)
Follow manufacturer application procedure to insure
proper antifreeze concentration and inhibitor level.
Above referenced products are available from
Douglas Products and Packaging, 1550 E. Old 210
Highway, Liberty, MO 64068, Tel:[phone]
(Toll Free) and/or selected HVAC distributors.
b. Equivalent system freeze protection products
may be used in lieu of product referenced above.
In general, freeze protection for new or existing
systems must use specially formulated glycol,
which contains inhibitors, preventing the glycol
from attacking the metallic system components.
Insure that system uid contains proper glycol
concentration and inhibitor level. The system should
be tested at least once a year and as recommended by
the manufacturer of the glycol solution. Allowance
should be made for expansion of the glycol solution.