HTP 500 HL, Инструкции по установке и запуску

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LP- 446 REV. 9.3.14
Under no circumstances should the mechanical room ever be under negative pressure. Particular care should be taken where exhaust
fans, attic fans, clothes dryers, compressors, air handling units, etc., may take away air from the unit. Failure to follow these instructions
could result in property damage or personal injury.
Combustion air supply must be completely free of any flammable vapors that may ignite, or chemical fumes which may be corrosive to
the boiler. See Table 1 for a list of combustion air contaminants. These chemicals, when burned, form acids which quickly attack the
stainless steel heat exchanger, headers, flue connectors, and the vent system. The result is improper combustion and premature boiler
failure. Such failure IS NOT covered under warranty.
EXHAUST FANS: Any fan or appliance which exhausts air from the mechanical room may deplete the combustion air supply and/or
cause a downdraft in the venting system. Spillage of flue products from the venting system into an occupied living space can cause a
very hazardous condition that must be corrected immediately.
MINIMUM RECOMMENDED COMBUSTION AIR SUPPLY TO MECHANICAL ROOM
MODEL
FIGURE 21 FIGURE 22 FIGURE 23 FIGURE 24
*Outside Air from 2 Openings
Directly from Outdoors
1
*Outside Air from 2 Ducts
Delivered from Outdoors
1
Inside Air from 2 Ducts Delivered from Interior
Space
2
*Outside Air
from 1
Opening
Directly from
Outdoors, in
2
1
Same Story
Different
Stories
Top Opening,
in
2
Bottom
Opening, in
2
Top Opening,
in
2
Bottom
Opening, in
2
Top Opening,
in
2
Bottom
Opening, in
2
Total
Opening, in
2
MODCON500 125 125 250 250 500 500 1000 170
MODCON850 215 215 425 425 850 850 1700 285
Table 14
– Indoor Combustion Air Sizing
The above requirements are for the boiler only; additional gas fired appliances in the mechanical room will require an increase in the net free area and/or
volume to supply adequate combustion air for all appliances.
No combustion air openings are needed when the boiler is installed in a space with a volume NO LESS than 50 cubic feet per 1,000 BTU/hr of all
installed gas fired appliances. Buildings MUST NOT be of *”Tight Construction”.
1
Outside air openings shall communicate with the outdoors.
2
Combined interior space must be 50 cubic feet per 1,000 BTU/hr input. Buildings MUST NOT be of *”Tight Construction”.
PART 6 – GAS PIPING
FAILURE TO FOLLOW ALL PRECAUTIONS IN THIS SECTION COULD RESULT IN FIRE, EXPLOSION, OR DEATH!
A. GAS CONNECTION
The gas supply shall have a maximum inlet pressure of less than 14" w.c. (3.5 kPa), and a minimum of 3.5" w.c. (.87 kPa). The entire
piping system, gas meter and regulator must be sized properly to
prevent pressure drop greater than 0.5" (.12 kPa) as stated in the
National Fuel Gas Code. This information is listed on the rating label.
It is very important that you are connected to the type of gas noted
on the rating plate. “LP” for liquefied petroleum, propane gas, or
“NAT” for natural or city gas. You must not do a gas conversion
without an approved gas conversion kit. Prior to turning the gas
on, all gas connections must be approved by the local gas
supplier or utility, in addition to the governing authority.
A gas conversion kit comes with Mod Con 500 boilers ONLY.
Field conversions ARE NOT ALLOWED on the Mod Con 850. A
properly calibrated combustion analyzer must be used to verify
proper combustion. Failure to follow all above information could
result in property damage, serious injury, or death.
Figure 25
– Gas Connection