Install Instructions

HEATING TIMES
-)./.4)-%
1. This is the minimum time the boiler will satisfy the call for
space heating before switching back to DHW (if there is still
a DHW call).
"//34).4%26!,
1. This applies when in outdoor reset mode (outdoor sensor
installed — see page 119).
2. The boost timer starts on a call for heat. If the boost interval
time passes and the call for heat is still on, the ECO control
“boosts” the calculated target outlet water temperature by
10°F.
3. This occurs again if another boost interval elapses.
4. Boost will continue until the setpoint (target temperature)
reaches the
SUPPLY MAX setting.
5. The purpose of boost is to compensate for changes in demand
not addressed by the reset curve. Typically, set boost to 30
minutes. The factory default is “OFF” — that is, boost is not
enabled with default settings.
02%05-04)-%
1. The boiler circulator and zone circulators (if activated by the
ECO zone circulator outputs) will start this amount of time
before the burner is started.
0/3405-04)-%
1. The boiler circulator and zone circulators (if activated with
the ECO zone circulator outputs) will continue this amount
of time after the burner is shut down when the call for heat
is satisfied.
MIN / MAX BLOWER RPM
1. Use to set minimum and maximum boiler inputs by setting
minimum and maximum blower RPM.
2. This adjustment can be used to match the maximum boiler
output to the maximum heat load. This will reduce boiler
cycling and increase boiler/system efficiency.
$URING COMBUSTION TESTING, the Maximum rate
must be set to the Maximum Rate “High Value” listed
in Figure 77, page 70 to allow the boiler to be set to
maximum input during high-fire set-up and testing.
&IGURE 3YSTEM3ETTINGS2ECOMMENDED
Part number 550-142-122/0513
69
TM
GAS-FIRED WATER BOILER — Boiler Manual
3YSTEMTYPE 2ECOMMENDEDTEMPERATURES
SUPPLY MAX
Temp
OD RESET MIN
Temp
SUPPLY MIN
Temp
OD RESET MAX
Temp
Fan-coil 190 0 140 70
&INNEDTUBEBASEBOARD
*
$EFAULTSETTINGS
180 0 130 70
Cast iron baseboard 180 0 120 70
Cast iron radiators 180 0 120 70
Radiant – slab on grade 120 0 80 70
Radiant – thin slab 140 0 80 70
Radiant – below floor (staple up) 160 0 90 70
Radiant – above floor (sleeper system) 140 0 90 70
HEATING SETTINGS menu (continued)