Weil-McLain SVF 1500 Manual page 120

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
SVF
Ratings —
Figure 114
Ratings and engineering data
DOE
Minimum
Boiler
Input –
Model
Maximum
Natural
Number
Input
Gas
Btuh Btuh
(Note 1) (Note 1)
SVF 1500 1,500,000 199,000 300,000 1,448,000 1,259,000
SVF 2000 1,999,000 199,000 300,000 1,923,000 1,672,000
SVF 2500 2,499,000 300,000 300,000 2,419,000 2,104,000
SVF 3000 3,000,000 300,000 300,000 2,874,000 2,499,000
Ratings shown are for sea level applications only. For altitudes above
1
TM
SVF
sea level, the boiler requires no modifications and automati-
cally de-rates itself by approximately 4% per 1,000 feet above sea
level. For elevations over 5,500 feet, see the high altitude section in
this manual for required control parameter changes.
The length of the vent and air piping will affect the maximum input.
See Figure 115, below for derate % vs vent/air piping length.
Net AHRI ratings are based on net installed radiation of sufficient
2
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 Thermal efficiency is based on AHRI testing procedures AHRI 1500.
Figure 115
Derate due to vent/air piping length
Determine vent/air piping equivalent length (feet) — Use the length for
Boiler
Model
SVF
1500/2000
SVF
2500/3000
Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death.
This document must only be used by a qualified heating installer/service technician. Read all instructions and perform steps
in the order given. Failure to comply could result in severe personal injury, death or substantial property damage.
Installation must comply with local requirements and with the National Fuel Gas Code - ANSI Z223.1/NFPA 54 – latest
edition for U.S. installations or Natural Gas and Propane Installation Code - CAN/CSA B149.1 for Canadian installations.
120
Series 1 boilers
AHRI Certified Ratings
Minimum
Input –
Gross
Net
Propane
Output
Rating
Gas
Btuh Btuh Btuh
(Note 1) (Note 1) (Note 2)
Notes
Derate % for Direct Exhaust
8" vent piping
Derate % = 0.024 x L
Example: If L=75 feet, Derate % = .024 x 75 = 1.8%
10" vent piping
Derate % = 0.005 x L
Example: If L=75 feet, Derate % = .005 x 75 = 0.38%
Boiler
Thermal
Combustion Water
Efficiency
Efficiency Content
% %
(
(Note 3) Note 4) Gallons
96.5 –– 118
96.2 –– 118
96.8 –– 149
–– 95.8 149
Combustion efficiency is based on AHRI testing procedure AHRI
4
1500, and equal to 100% minus flue loss.
TM
SVF
boilers can be direct vent or direct exhaust vented, either
5
through a side wall or through roof, as instructed in this manual and
compliant with all local codes.
consistent with Category IV boiler.
Category II, see pages 27-28.
Use only the vent materials and methods identified in this manual.
The values are for the stack flow rate at the maximum firing rate for
6
the given boiler. The values can vary depending on the location of
the installation and operating conditions.
Example: If L=75 feet, Derate % = .039 x 75 = 2.93%
Example: If L=75 feet, Derate % = .013 x 75 = 0.98%
Vent/ Stack/
Air vent
Boiler weight
Pipe flow
(pounds)
Size rate
Dry Operating
scfm
Inches
weight weight
(Note 5) (Note 6)
(no water)
8 415 2020 3000
8 553 2020 3000
10 692 2225 3470
10 830 2225 3470
Notes
TM
SVF
Boilers require special venting,
L
in the equations.
Derate % for Direct Vent
8" vent/air piping
Derate % = 0.039 x L
10" vent/air piping
Derate % = 0.013 x L
Part number 550-100-250/0819
Shipping
weight
2445
2445
2650
2650