4
DANGER
DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other
appliance.
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal
injury or loss of life. Failure to follow all instructions in the proper order can cause personal injury or
death. Read and understand all instructions, including all those contained in component manufacturers
manuals which are provided with the appliance before installing, starting-up, operating, maintaining or
servicing this appliance. Keep this manual and literature in legible condition and posted near appliance
for reference by owner and service technician.
This boiler requires regular maintenance and service to operate safely. Follow the instructions contained
in this manual. Installation, maintenance, and service must be performed only by an experienced, skilled
and knowledgeable installer or service agency. All heating systems should be designed by competent
contractors and only persons knowledgeable in the layout and installation of hydronic heating systems
should attempt installation of any boiler. It is the responsibility of the installing contractor to see that all
controls are correctly installed and are operating properly when the installation is completed. Installation
is not complete unless a pressure relief valve is installed into the specified tapping located at the rear of
appliance - See Section III of this manual for details.
This boiler is suitable for installation on combustible flooring. Do not install boiler on carpeting. Do not
operate on floors where heat affected material is below.
Do not tamper with or alter the boiler or controls. Retain your contractor or a competent serviceman to
assure that the unit is properly adjusted and maintained.
Clean boiler at least once a year - preferably at the start of the heating season to remove soot and scale.
The inside of combustion chamber should also be cleaned and inspected at the same time.
Have Burner and Controls must be checked at least once a year or as may be necessitated.
Do not operate unit with jumpered or absent controls or safety devices.
Do not operate unit if any control, switch, component, or device has been subject to water.
Return water cannot be lower than 135°F for prolonged periods of time. Operation under these conditions will
result in sustained condensing within the combustion chamber and potentially reduce boiler longevity.
In addition, the return water cannot be introduced into the boiler if it is more than 40°F less than the idle
boiler temperature. Continued operation under these conditions may result in premature boiler failure
through thermal shock.
Example: A boiler that has been idle for some time since the last heat demand cycle may have it’s boiler
water temperature reduced to 150°F. The return temperature from the next zone activation cannot be
less than 110°F.
If the above conditions exist, an RTC (or similar type of control) system must be installed to protect
the boiler from sustained condensing operation and thermal shock. See separate RTC Manual, P/N
8146382.
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Страница 2: ...2 ...
Страница 8: ...8 Section I General Information Figure 1 Dimensional Information ...
Страница 21: ...21 Figure 16 Bare Boiler Assembly ...
Страница 25: ...25 Figure 22 V9A Series Jacket Assembly Boiler Models V903A thru V912A ...
Страница 31: ...31 Figure 26 V9A Series Minimum Piping Parallel Water Boiler ...
Страница 32: ...32 Figure 27 V9A Series Minimum Piping Primary Secondary Water Boiler ...
Страница 33: ...33 Figure 28 V9A Series Minimum Piping Details Bypass with Blend Pump Water Boiler ...
Страница 34: ...34 Figure 29 V9A Series Minimum Piping Primary Secondary with Bypass Water Boiler ...
Страница 35: ...35 Figure 30 Minimum Piping Details Multiple Boiler Application Primary Secondary Piping With Bypass ...
Страница 36: ...36 Figure 31 Minimum Piping Details Multiple Boiler Application Parallel Piping With Blend Pump ...
Страница 37: ...37 Figure 32 Minimum Piping Requirements For Gravity Return V9A Series Steam Boilers ...
Страница 38: ...38 Figure 33 Typical Steam Piping Arrangement for Boilers with Pumped Condensate Return and Boiler Feed Unit ...
Страница 42: ...42 Figure 37b DHW Generation with Tankless Coils Storage Tank and Destratification Pump ...
Страница 43: ...43 Figure 37c DHW Generation with Indirect Water Heater ...
Страница 56: ...56 SECTION VII REPAIR PARTS Continued Figure 39 V9A Series Jacket Assembly Boiler Models V903A thru V912A ...
Страница 58: ...58 Figure 40 Bare Boiler Assembly ...
Страница 62: ...62 SERVICE RECORD DATE SERVICE PERFORMED ...
Страница 63: ...63 SERVICE RECORD DATE SERVICE PERFORMED ...
Страница 64: ...64 ...