ICP GWA 245, Руководство пользователя

Страница: 2 / 36

GWA
Gas-Fired Water Boilers – Boiler Manual
2
Part Number 670 01 1001 00
Installations must follow these codes:
• Local, state, provincial, and national codes, laws, regulations
and ordinances.
• National Fuel Gas Code, ANSI Z223.1–latest edition.
• Standard for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1, when required.
• National Electrical Code.
• For Canada only: B149.1 or B149.2 Installation Code, CSA
C22.1 Canadian Electrical Code Part 1 and any local codes.
Certification
The GWA boiler gas manifold and controls met safe
lighting and other performance criteria when boiler
underwent tests specified in ANSI Z21.13–latest
edition.
Before locating the boiler:
❏
Check for nearby connection to:
•
System water piping
• Venting connections
• Gas supply piping
• Electrical power
❏
Check area around boiler. Remove any combustible materials,
gasoline and other flammable liquids.
Failure to keep boiler area clear and free of
combustible materials, gasoline and other flammable
liquids and vapors can result in severe personal
injury, death or substantial property damage.
❏
Boiler must be installed so that gas control system components
are protected from dripping or spraying water or rain during
operation or service.
❏
If new boiler will replace existing boiler, check for and correct
system problems, such as:
1. System leaks causing oxygen corrosion or section cracks
from hard water deposits.
2. Incorrectly-sized expansion tank.
3. Lack of antifreeze in boiler water causing system and boiler
to freeze and leak.
Codes & checklist
Failure to adhere to the guidelines below can
result in severe personal injury, death or
substantial property damage.
When servicing boiler —
1. To avoid electric shock, disconnect electrical supply
before performing maintenance.
2. To avoid severe burns, allow boiler to cool before
performing maintenance.
Boiler operation —
3. Do not block flow of combustion or ventilation air to boiler.
4. Should overheating occur or gas supply fail to shut off, do
not turn off or disconnect electrical supply to circulator.
Instead, shut off the gas supply at a location external to
the appliance.
5. Do not use this boiler if any part has been under water.
Immediately call a qualified service technician to inspect
the boiler and to replace any part of the control system
and any gas control that has been under water.
Boiler water —
6. DO NOT use petroleum-based cleaning or sealing
compounds in boiler system. Water seal deterioration will
occur, causing leakage between boiler sections, circulator
flanges, diaphragm tanks or other system components.
This can result in substantial property damage.
7. DO NOT use "homemade cures" or "boiler patent
medicines". Serious damage to boiler, personnel and/or
property may result.
8. Continual fresh makeup water will reduce boiler life. Mineral
buildup in sections reduces heat transfer, overheats cast
iron, and causes section failure. Addition of oxygen and
other gases can cause internal corrosion. Leaks in boiler
or piping must be repaired at once to prevent makeup
water.
9. Do not add cold water to hot boiler. Thermal shock can
cause sections to crack.
Glycol — potential fire hazard —
All glycol is flammable when exposed to high temperatures. If
glycol is allowed to accumulate in or around the boiler or any
other potential ignition source, a fire can develop. In order to
prevent potential severe personal injury, death or substantial
property damage from fire and/or structural damage:
• Never store glycol of any kind near the boiler or any
potential ignition source.
• Monitor and inspect the system and boiler regularly for
leakage. Repair any leaks immediately to prevent possible
accumulation of glycol.
• Never use automotive antifreeze or ethylene glycol in the
system. Using these glycols can lead to hazardous
leakage of glycol in the boiler system.
1 Prepare boiler location Read this first!
GWA
Gas-Fired Water Boilers – Boiler Manual
35
Part Number 670 01 1001 00
Install GWA boilers for residential radiant panel systems, converted gravity
heating systems or other low water temperature applications per instructions
in this manual to avoid damage due to condensation.
GWA boilers are CSA design certified for installation on combustible
flooring.
GWA boilers are ASME rated for 50 psig working pressure.
14 Ratings
DOE
1. Based on standard test procedures prescribed by the United States Department of
Energy.
2. Net I=B=R ratings are based on net installed radiation of sufficient quantity for the
requirements of the building and nothing need be added for normal piping and pickup.
Ratings are based on a piping and pickup allowance of 1.15. An additional allowance
should be made for unusual piping and pickup loads.
3. See information at right for model number suffixes. Letters shown are model number
suffixes. An “N” after the model number designates natural gas. The letter after the
“N” designates the pilot ignition system — “S” for standing pilot or “I” for spark-
ignited pilot. For example, a suffix “NS” means a natural standing pilot boiler.
4. Contact your International Comfort Products dealer regarding information and parts
for high altitude applications.
Boiler
model
number
0–2,000 feet altitude 2,000–4,500 feet altitude
(Canada)
Net
I=B=R
ratings
(Btuh)
Boiler
water
content
(gallons)
DOE
Seasonal
efficiency
(% A.F.U.E)
Chimney
and
breeching
size
Input
(Btuh)
DOE Heating Capacity
(Output) (Btuh)
Input
(Btuh)
Output
(Btuh)
NS NI
(Note 3) (Note 1) (Note 4) (Note 2) (Note 3)
GWA052 52,000 43,000 46,800 37,400 37,000 1.5 80.2 83.0 4"I.D. x 20’
GWA070 70,000 58,000 63,000 50,400 50,000 1.5 80.1 82.2 4"I.D. x 20’
GWA105 105,000 88,000 94,500 75,600 77,000 2.1 80.4 82.9 5"I.D. x 20’
GWA140 140,000 117,000 126,000 100,800 102,000 2.7 80.4 82.5 6"I.D. x 20’
GWA175 175,000 145,000 157,500 126,000 126,000 3.3 80.5 82.2 6"I.D. x 20’
GWA210 210,000 175,000 189,000 151,200 151,000 3.8 80.5 81.8 7"I.D. x 20’
GWA245 245,000 202,000 220,500 176,400 176,000 4.4 80.5 81.4 7"I.D. x 20’