Weil-McLain Eco Tec 2 Series Advanced Manual page 69

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ECO Tec series 2 gas-fired water boiler – advanced manual
Network Boiler PRIORITY menus
Boiler Model, Altitude and Fuel Type are criti-
cal settings. Failure to set correctly could result in
severe personal injury, death or substantial property
damage.
Figure 39 ECO Tec
Network Boiler PRIORITY menus (access menus from CONTRACTOR menu (continued)
PRIORITIES
120°F
1ST
COMBI-DHW
PREHEAT ECON
ECO BOOST ON
180°F
2ND
FIN BASE
130°F
160°F
AUX PUMP/OUT –
3RD
RADFLOOR
LOCAL DAMPER 90°F
NET 2
NET 1
WIZARD
SYSTEM TYPE: FAN COIL
MODULATION SENSOR:
TARGET ADJUST:
MAX TARGET TEMP:
MIN TARGET TEMP:
OUTDOOR TEMP FOR MAX TARGET:
OUTDOOR TEMP FOR MIN TARGET:
Screens shown above are typical only.
Actual screens depend on control settings
chosen.
Part number 550-100-272/1021
MENU Item
INPUTS
ADD'L HEAT
BLR PUMP
DEMAND
INPUT/OUTPUT 1
ACTIVATE
INPUT/OUTPUT 4 CONTACT
BLR PUMP
INPUT/OUTPUT 2
BLR PUMP
INPUT/OUTPUT 3
SYSTEM SUPPLY
OUTDOOR TEMP
180°F
EDIT
140°F
RESPONSE
0°F
TIME
70°F
TEMP
DEPENDENT
HELP
OUTDOOR
TEMPERATURE
SETPOINT
ACTIVATE
CONTACT
BELOW
SETPOINT
MAX RATE
VOLTAGE
MIN RATE
VOLTAGE
1. Access contractor menus by pressing and holding the WM
Logo for 7 seconds from the home screen.
2. See the following pages for explanations of control setting
options.
DESCRIPTION
• If this is set to 1st: Immediately on a call for heat, the
heat demand contacts close and the RESPONSE TIME
timer starts. If the call for heat from this demand is still
active at the end of the Response Time and the system
has not reached [Target Temp - System On Diff], the
boiler system will start. If the system temperature is
within this range, the boiler system will not start unless
the temperature drops below this value. The add'l heat
demand contact opens when the heat demand turns off.
• If this is set to 2nd: The boiler system starts immediately
on a call for heat and starts the RESPONSE TIME timer.
If the call for heat is still active when the RESPONSE
TIME expires, the boiler will close its additional heat
demand contact.
• If this set to ODT: The boiler system will start based on
the Outdoor Temperature, the activate contact below
setpoint and the Outdoor Temp setpoint valve.
• Timers reset when priorities are switched.
• NETWORK PRIORITY 1 or 2 — The additional heat
demand must be wired to the master boiler.
• LOCAL PRIORITY 1 or 2 — The additional heat demand
must be wired to the individual boiler. A master boiler
cannot use additional heat demand on a local priority.
• Time to wait for system to respond before taking the
Activate Contact action. If ACTIVATE CONTACT is
OFF, this line does not appear.
• Selecting YES will require the System Supply Tempera-
ture to be below the Target temperature before it will
activate the Additional Heat Demand contacts. Selecting
YES will also activate the 0-10v output along side the
contacts. Selecting NO will disregard System Supply Tem-
perature and activate AHD contacts strictly according to
the Activate Contact setting. NOTE: If no valid System
Supply and Return sensor pair are detected the Temp
Dependent YES setting cannot be used and the contact
will be disabled until a valid sensor pair is detected.
• Selecting the outdoor temperature valve to be used in
conjunction with the Activate Contact Below Setpoint
setting. NOTE: A valid outdoor temperature sensor
must be detected to use this feature. If one is not detected,
this feature will be temporarily disabled until one is found
• Select 1st to activate the contact before the boiler when
below the Outdoor Temperature Setpoint and after the
boiler when above. Select 2nd to activate the contact in
reverse order.
• When blower modulation is at maximum the control
will output this voltage from 0-10v output when using
Additional Heat Demand.
• When blower modulation is at minimum the control
will output this voltage from 0-10v output when using
Additional Heat Demand.
(continued)
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