Weil-McLain SlimFit 2 Series Manual page 61

Commercial condensing gas-fired water boilers
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SlimFit
®
Series 2
Zoning with the SlimFit Control
B. Zoning with ZONE VALVES, suggested applications
Two space heating zones (no DHW)
1. Review wiring information on page 49 (120VAC
outputs) and page 53 (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
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. Use the factory default settings for the heating sys-
tem 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 53 (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 heat-
ing 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 550-100-561/0224
commercial condensing gas
-
— Boiler Manual
fired water boiler
(continued)
P15, P11 and P2 are on the terminal strips
61

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