Pennco 3KW0.60 User Manual
Page 15
15
Antifreeze must be nontoxic, type specifically intended
for use in closed hydronic heating systems. Under no
circumstances should automotive antifreeze be used.
Antifreeze used in any boiler may reduce capacity by
10% or more and increase fuel consumption. Tankless
coil performance will fall as concentration of antifreeze is
increased. Refer to boiler and piping water volumes tables
in this manual.
BOILER WATER VOLUMES
Number of
Boiler Section
Total Volume
(Gallons)
3
9.6
4
11.6
5
13.7
PIPING WATER VOLUMES
PIPE SIZE
COPPER PIPE
FACTOR
STEEL PIPE
FACTOR
½”
82.5
63.5
¾”
40.0
36.0
1”
23.3
22.2
1 ¼”
15.3
12.8
1 ½”
10.8
9.5
2”
6.2
5.8
Divide total length of piping in feet by appropriate factor
in table to determine volume in gallons.
This is a very important part of your heating system. Check
your chimney to make certain that it is right size, properly
constructed and in sound condition.
Following chart shows recommended minimum chimney
sizes.
For additional chimney design and sizing information,
consult latest revision of the ASHRAE HVAC Systems and
Applications Handbook, Gas Vent and Fireplace Systems; or
the National Standard for Chimneys, Fireplaces, Vents and
Solid Fuel Burning Appliances, ANSI/NFPA 211.
RECOMMENDED MINIMUM CHIMNEY SIZES
FIRING RATE
(gph)
CHIMNEY
HEIGHT (ft)
NOMINAL
CHIMNEY
ROUND
LINER INSIDE
SQUARE
LINER INSIDE
0.60 1.30
15
8” x 8”
6”
6 ¾” x 6 ¾”
1.35 1.80
15
8” x 8”
7”
6 ¾” x 6 ¾”
1.85 2.00
20
8” x 8”
8”
6 ¾” x 6 ¾”
For elevations above 2,000 feet above sea level, add 3 feet to the chimney heights.
For oil fired boilers for connections to vents or chimneys,
vent installations shall be in accordance with applicable
provisions of INSTALLATION OF OIL BURNING EQUIPMENT,
NFPA31 latest revision, and applicable provisions of local
building codes.
ANTIFREEZE IN THE SYSTEM
CHIMNEY AND CHIMNEY CONNECTIONS
NOTICE
Fresh air (ventilation) is important to proper
venting. Ventilation and venting are two parts of the
same system. Inadequate ventilation will result in
inadequate venting. Always be sure to have enough
ventilation to support proper venting.