Zoning With The Eco Tec Control - Weil-McLain Eco Tec 2 Series Advanced Manual

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ECO Tec series 2 gas-fired water boiler – advanced manual

Zoning with the ECO Tec Control

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.
A. Zoning with CIRCULATORS – suggested applications
Four space heating zones (no Indirect DHW)
(Heating Only models shown).
1. Review wiring information on page 35 (120VAC
outputs) and page 36 (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 NETWORK PRIORITY 2 menu in
the System Settings menu.
4. Use the factory default settings for the system type
chosen, or change if needed.
Three space heating zones plus Indirect DHW
piped directly to boiler
shown).
1. Review wiring information on page 35 (120VAC
outputs) and page 36 (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. Set Inputs 2, 3 and 4 to NETWORK PRIORITY 2.
To set up NETWORK PRIORITY 2, choose the
space heating system type that matches the heating
system during the WIZARD setup or manually in
the NETWORK PRIORITY 2 menu in the System
Settings menu.
4. Assign INPUT 1 to LOCAL PRIORITY 1, or use IN-
PUT 2 NETWORK PRIORITY 2 for Combi models.
5. Use the factory default settings for DHW and for the
heating system type chosen, or change if needed.
– 48 –
(Heating Only models
Part number 550-100-272/1021