System Water Piping Methods - Weil-McLain EcoTec 80 Manual

G -
®
ECO Tec
AS FIRED WATER BOILER
Primary/Secondary System Piping

System water piping methods

Connect boiler to system only as shown in Figure 60, page 50
and Figure 61, page 51. The primary/secondary piping shown
ensures the boiler loop will have sufficient flow.
The boiler circulator is factory-installed in the boiler as
shown in this manual. The boiler circulator is selected to
ensure adequate flow through the boiler loop.
relocate or use the boiler circulator
in any way other than the ones shown in this
manual.
Failure to comply could result in unreliable
performance and nuisance shut downs from
insufficient flow.
Install a system circulator or zone circulators as shown in the
piping diagrams in the Primary/Secondary System Piping
section in this manual. These circulators must be supplied
by the installer.
Size circulators based on the flow rate required to achieve
the temperature change you needed. You can closely estimate
temperature rise (or drop) through a circuit by using the
following formula, where TD is temperature rise (or drop),
FLOW is flow rate (in gpm), and BTUH is the heat load for
the circuit:
=
:
1. Consider a system loop for a system with total heating
load equal to 210,000 Btuh. The desired temperature
drop through the system piping is 20°F. Then the
required flow rate is:
=
1. The circulator must be capable of delivering the required
flow against the head loss that will occur in the piping.
2. Determine the pipe size needed and the resultant head
loss using accepted engineering methods.
52
–
80/110/150/199
1. The ECO Tec
2. See separate instructions for the ECO Tec
=
1. The ECO Tec
2. See separate instructions for the ECO Tec
B
OILER
-
Single Boiler System
Easy Up Manifold and DHW Service Valves
options
Easy Up Manifold
See
Miscellaneous service parts and kits
of this manual for ordering information.
Weil-McLain website for suggested guidelines to determine how
to use and setup.
DHW Service Valves
See Miscellaneous service parts and kits
of this manual for ordering information.
Weil-McLain website for suggested guidelines to determine how
to use and setup.
M
ANUAL
(continued)
comes as a separate kit.
section at the end
Easy Up Manifold
comes as a separate kit, as well.
section at the end
DHW Service Valves
Part number 550-100-260/0520