Zone Valve Zoning - Primary/Secondary - Freestyle 80 Manual

®
W
FreeStyle
ALL
17 Primary/Secondary System Piping
Zone Valve zoning – primary/secondary
(Shown with optional DHW piping)
See Figure 48.
loop. Systems whose flow characteristics do not comply with
those listed in Figure 45, page 38 must pipe the boiler loop as a
secondary circuit as show.
regulator.
delivering the proper flow and head as shown.
Expansion Tank required
pages 37 or 39.
2. DO NOT
is equipped with an automatic vent.
Domestic Hot Water (DHW) tank, if used
1.
2.
DHW tank is NOT already connected to the boiler. To provide
DHW priority operation, use a zone controller. See notices
on page 51
3. DHW Priority operation—The FreeStyle®
ting instructions.
4. NOT connecting an indirect water heater, do not use the DHW
input or DHW Circulator output on the FreeStyle® control.
space heating zones to inputs and outputs intended
the 2007 Energy Act. See page 127
Wiring the Indirect tank aquastat to the Heating Only
Controlling the Zones
1. The FreeStyle® control can be used to control space heating
only, domestic
beginning on page 51
1 FreeStyle® wall mount boiler
2 Indirect Water Heater, if used
3 Relief valve, supplied by Installer, field piped — MUST be
piped to boiler supply connection — see page 9 for infor-
mation
4 Relief valve piping to drain — see page 40
5 DHW circulator
6 Isolation valves
7 System circulator
8 Expansion tank, diaphragm type, if used
9 Air separator
10 Flow/check valves
11 Purge/drain valves (Installer supplied)
Part number 550-142-850/0716
M -
OUNT GAS FIRED WATER BOILER
page 65
Section 303 of
.
Figure 48
12 Auto air vent
13 Zone valves
14 Primary/secondary connection (tees no more than
12 inches apart)
15 Expansion tank, closed type, if used (some chiller
systems may use a diaphragm-type expansion tank)
16 Water chiller
17 Check valve
18 Y-strainer
19 Balancing valve
20 Make-up water supply – Use applicable codes to deter-
mine if backflow preventers, pressure reducing valves,
and fill valves may be required
—
Boiler Manual
(continued)
Figure 48
-
-
2. The boiler and zone valves can also be operated by a
zone controller.
21 By-pass pressure regulator, REQUIRED for zone valve
systems unless other provision is made
22 High limit temperature control
23 Zone circulator
24 Pressure/temperature gauge, supplied with boiler, field piped
25 Heating circuits
26 Additional heating circuits, if any
27 Boiler circulator,
Combi boiler the circulator is already inside the boiler
jacket).
28 Mixing valve, if any
(See Note,
page 39)
* (For Heating Only boilers, In the
41