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Part number 550-100-260/0520
70
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
Zoning with the ECO Tec Control
A. Zoning with CIRCULATORS, suggested applications
1. Review wiring information on page 60 (120VAC
outputs) and page 61 (24VAC inputs).
2. The configuration at right uses the four input/output
pairs to receive thermostat inputs on J17-1/2, J17-4/5,
J17-7/8 and J16-1/2; and circulator outputs as shown.
3. Choose the space heating system type that matches the
heating system during the WIZARD setup or manually
in the PRIORITY 2 menu in the System Settings menu.
4. Use the factory default settings for the system type
chosen, or change if needed.
1. Review wiring information on page 60 (120VAC
outputs) and page 61 (24VAC inputs).
2. The configuration at right uses INPUT 3 and 4 for
space heating thermostats. INPUT 1 uses the input
from a DHW aquastat.
3. System Settings 2, 3 and 4 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 in the
System Settings menu.
4. Assign INPUT 1 to PRIORITY 1, or use INPUT 2
PRIORITY 2 for Combi models.
5. Use the factory default settings for DHW and for the
heating system type chosen, or change if needed.
Combi models use Input/Output pairs 1 and 4 for 3-way valve operation and cannot be used for any
other purpose. Use Input 2 for Indirect DHW and Input 3 for Spacing Heating applications.
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