Alpine ALP150B - Drain Valve; Low Water Cutoff Auto Reset

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NOTICE
The Alpine boiler heat exchanger is made from stainless steel tubular coil having relatively narrow
waterways. Once lled with water, it will be subject to the effects of corrosion. Failure to take the
following precautions to minimize corrosion and heat exchanger waterways overheating could result in
severe boiler damage.
•
Before connecting the boiler, insure the system is free of impurities, grease, sediment, construction
dust, sand, copper dust, ux and any residual boiler water additives. Flush the system thoroughly
and repeatedly, if needed, with clear water mixed with concentrated rinse agent to remove these
contaminants completely.
•
Iron oxide (red oxide sludge Fe
2
O
3
) is produced during oxygenation. To minimize any oxygen pres-
ence in the system, the system must be air free and leak tight. Do not connect the boiler to radiant
tubing without an oxygen barrier. Using automatic water rell is not recommended, however, if such
rell is employed, a water meter must be added to evaluate the makeup water volume taken after ini-
tial ll and eliminate any water leakage as early as possible.
•
Maintain the water pressure in the boiler at a minimum of 14.5 psi (100 kPa).
•
The boiler water pH must be within 7.5 < pH < 9.5. If the system contains any aluminum components,
pH must be less than 8.5.
•
Black oxide sludge (magnetite Fe
3
O
4
) forms as the result of continuous electrolytic corrosion in any
system not protected by an inhibitor.
•
Scale deposit is made up of lime scale contained in most distributed water and settles over the warm-
est surfaces of boiler heat exchanger causing subsequent overheating and eventual failure. Water
hardness must be maintained within 3 to 9 grain/gal range.
•
Refer to Section XI “Service and Maintenance” for recommended heating system water treatment products
(corrosion/scale inhibitors, cleaners etc) and their suppliers.
10. Drain Valve (Required) – Drain valve is
packaged loose with boiler and must be installed in
the location shown in Figure 20 “Factory Supplied
Piping and Trim Installation” of the Installation,
Operating and Service Instructions.
11. Low Water Cutoff Auto Reset
(Required by some Codes) –
Optional Automatic Reset LWCO with harness is
available. Order Part Number 105530-01 when
required.
VI. Water Piping and Trim C. Standard Installation Requirements (continued)