Part number 550-100-260/0520
89
ECO
®
Tec
G
AS
-
FIRED
WATER
BOILER
–
80/110/150/199
B
OILER
M
ANUAL
&IGURE
ECO
Tec
PRIORITY options
Priority Setting screens
-%.5)TEM
$%3#2)04)/.
SYSTEM
TYPE
s
Select the system type for this PRIORITY, based on
t h e h e a t i n g ter m i n a l u n i t s i n t h e s y s te m ( s e e
Figure 79, page 85). Use the CUSTOM selection to set the
control for a different system type. The factory preset val-
ues for Max Target Temp, MIN TARGET TEMP, Outdoor
Temp for Min Target and OUTDOOR TEMP FOR MAX
TARGET are chosen based on the normal best setting for
the terminal units.
TARGET
MODULATION
SENSOR
s
Choose SYSTEM SUPPLY or BOILER OUT to deter-
mine which will be the primary temperature sensor. The
control will modulate boiler input to reach the TARGET
temperature. (Default is SYSTEM SUPPLY only if sensor
is attached.) If system sensors are not used, boiler defaults
to using boiler outlet sensor in place of system sensor.
NOTE: Not adjustable on Combi DHW priority.
TARGET
ADJUST
s
Select how target temperature is calculated by control:
NONE (no reset, fixed target temperature), 0-10V (target
temperature based on analog input from remote source),
Outdoor Temp (outdoor reset operation; default set-
ting when an outdoor temperature sensor is attached).
NOTE: Not adjustable on Combi DHW priority.
MAX
TARGET
TEMP
s
Set Max Target Temp to the required supply water tempera-
ture for the system at design maximum heat loss (typically
180 °F for finned tube baseboard on new installations.)
NOTE: Not adjustable on Combi DHW priority.
MIN
TARGET
TEMP
s
MIN TARGET TEMP should equal the desired minimum
supply water temperature for the system.
s
This line is not shown on priorities configured as DHW
system type or Heating system type, if outdoor tempera-
ture sensor not used.
NOTE: Not adjustable on Combi DHW priority.
OUTDOOR TEMP
FOR
MIN TARGET
s
OUTDOOR TEMP FOR MIN TARGET is the outdoor tem-
perature at which the target temperature reaches its minimum
(MIN TARGET TEMP).
s
This line is not shown on priorities configured as DHW
system type or Heating system type, if outdoor tempera-
ture sensor not used.
NOTE: Not adjustable on Combi DHW priority.
OUTDOOR TEMP
FOR
MAX TARGET
s
OUTDOOR TEMP FOR MAX TARGET means the outdoor
temperature at which the target temperature reaches its
maximum value (MAX TARGET TEMP).
s
OUTDOOR TEMP FOR MAX TARGET should equal the
Outdoor Temp (outdoor design temperature) for the instal-
lation’s location.
s
This line is not shown on priorities configured as DHW
system type or Heating system type, if outdoor temperature
sensor not used.
NOTE: Not adjustable on Combi DHW priority.
VOLTAGE FOR
MAX TARGET
s
Only appears if Target Adjust or Source for Input 2 is set
to 0-10V. For Target Adjust, this sets the voltage at which
Max Target Temp temperature is requested. For Source on
Input 2, this sets the voltage that corresponds to Max Rate.
3CREENSSHOWNABOVEARETYPICALONLY
!CTUALSCREENSDEPENDONCONTROL
SETTINGSCHOSEN
"OILER -ODEL !LTITUDE AND &UEL4YPE ARE
CRITICAL SETTINGS
Failure to set correctly could
result in severe personal injury, death or substantial
property damage.
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.
