Weil-McLain SVF 1500 Manual page 67

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Zoning with the
B. Zoning with ZONE VALVES, suggested applications
Two space heating zones (no DHW)
1. Review wiring information on page 49 (120VAC out-
puts) and page 59 (24VAC inputs).
2. The configuration at right uses INPUT 2 and 3 for
space heating thermostats. INPUT 1 is reserved here
for configuring the operation of the system circulator.
3. The factory default settings assign inputs 1, 2 and 3 to
PRIORITY 2. Keep inputs 2 and 3 assigned to PRIOR-
ITY 2. To set up PRIORITY 2, choose the space heating
system type that matches the heating system during the
WIZARD setup or manually in the PRIORITY 2 menu.
4. Use the factory default settings for the heating system
type chosen, or change if needed.
5. Assign INPUT 1 to AUX PUMP/OUTPUT. Then se-
lect ANY INPUT BY ITS PRIORITY when prompted
for when to activate the output. This will cause the
system pump to run when either of the zones calls for
heat. Confirm that Priority 2 RUN AUX PUMP/OUT
is set to YES.
6. INPUT 1 (P11-4/5) cannot be used for a wired con-
nection (as shown at right) because it is being used in
the control setup to run the system circulator.
7. Factory defaults should work for other settings not
listed above.
The system must be equipped with a by-pass
pressure regulating valve. Flow can occur with
zone valves closed.
WMZV zone valve zone controller plus DHW
controlled by boiler, DHW piped directly to
boiler
1. Review wiring information on page 49 (120VAC
outputs) and page 59 (24VAC inputs).
2. The configuration at right uses INPUT 2 for space
heating with the call for heat coming from the zone
controller (X-X). INPUT 1 uses the input from a
DHW aquastat.
3. The factory default settings assign inputs 1, 2 and 3 to
PRIORITY 2. Keep input 2 assigned to PRIORITY 2.
To set up PRIORITY 2, choose the space heating
system type that matches the heating system during
the WIZARD setup or manually in the PRIORITY 2
menu.
4. The system circulator, wired to OUTPUT 2, will turn
on whenever there is a call for heat from the zone
controller.
5. Assign INPUT 1 to PRIORITY 1, which is factory
default configured for DHW applications. Wire the
DHW circulator to OUTPUT 1.
6. Use the factory default settings for DHW and for
the heating system type chosen, or change if needed.
Factory defaults should work for other settings not
listed above.
Part number 550-100-250/0819
ni
TM
Control
(continued)
P15, P11 and P2 are on the terminal strips
67