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Multiple Zoning With CIRCULATORS
FIGURE 9
Multiple Zoning With ZONE VALVES
FIGURE 10
Piping MULTIPLE ZONES:
1. Follow instructions on page 12 and 13 to install piping near boiler.
2. See FIGURE 9 or 10 to complete installation
3. Zoning with circulators:
a. Size each circulator to individual circuit requirements.
b. Remove circulator (when furnished as standard equipment).
c. Install balancing valves to adjust flow to distribute heat to all zones.
d. Separate relay is required for each circulator.
4. Zoning with zone valves:
a. Install balancing valves to adjust flow to distribute heat to all zones.
b. Separate transformer is required to power zone valves. Refer to “Weil-McLain Zone Valve Wiring Guide”
for details.
14
Connect Water Piping CONTINUED
Legend:
1 Isolation valve
2 Flow control valve
3 Circulator
4 Zone valve
5 Drain valve
ZONE 2
ZONE 1
1
5
5
4
11
1
ZONE 2
ZONE 1
1
1
2
5
5
1
2
3
1