ECR International Columbia MCC II Series, Инструкция по установке, эксплуатации и обслуживанию

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2 - BOILER RATINGS AND CAPACITIES
Table 2 - Ratings and Capacities
BOILER
MODEL
NUMBER
(1)
† NATURAL GAS † PROPANE GAS AFUE
Input
(3)
Mbh
(1)
Heating
Capacity
(3)
Mbh
(2)
NET AHRI
RATING
Water,
(3)
Mbh
INPUT
(3)
MBH
HEATING
CAPACITY
(3)
MBH
NET AHRI
RATING
INTERMITTENT
IGNITION
WITH VENT
DAMPER
MCC-8 262.5 220 191 245 206 179 83.9
MCC-9 299 251 218 280 235 204 83.7
†
Input rating for sea level to 2,000 ft. (610m) above sea level. Over 2000 ft (610m) above sea level.
Reduce input rate 4% for every 1000 ft (304m) above sea level.
+ Heating Capacity based on D.O.E. (Department of Energy) test procedure.
(1)
Add model number suf fi ce ‘P’ for Propane.
(2)
Net AHRI Water rating shown based on piping and pickup allowance of 1.15. Consult manufacturer before
selecting boiler for installations having unusual piping and pickup requirements, such as intermittent
system operation, extensive piping systems, etc.
(3)
MBH = 1,000 Btuh = British Thermal Unit Per Hour
Ratings marked “Net AHRI Ratings” indicate amount of remaining heat input used to heat radiation or termi-
nal units. Net AHRI Ratings shown are based on allowance of 1.15 in accordance with factors shown on AHRI
Standard as published by The Hydronics Institute.
Selection of boiler size should be based upon “Net AHRI Rating” being equal to or greater than calculated -
heat loss of the building.
Consult manufacturer before selecting boiler for installations having unusual piping and pickup requirements.
-
BOILERS FOR USE AT HIGH ALTITUDE
Boiler is factory equipped for use at altitudes of 0-2,000 feet above sea level.
For use at altitudes above 2,000 feet above sea level, input ratings are reduced by change in main burner
ori fi ce size.
For altitudes above 2,000 feet above sea level, input ratings should be reduced at rate of 4% for each 1,000
feet above sea level. Consult National Fuel Gas Code, ANSI Z223.1/NFPA 54 or manufacturer for correct
ori
fi ce sizing information.